Indonesia Conference Directory

Corresponding Author
SEKAR UTARI

Institutions
1Balai Litbang Perumahan Wilayah I Medan, Puslitbang Perumahan dan Permukiman, Badan Penelitian dan Pengembangan, Kementerian Pekerjaan Umum dan Perumahan Rakyat.
2Subdirektorat Lingkungan dan Keselamatan Jalan, Direktorat Pengembangan Jaringan Jalan, Direktorat Jenderal Bina Marga, Kementerian Pekerjaan Umum dan Perumahan Rakyat.

Abstract
New road development, bridge, and toll road constructions will give impact to the environment. The road is a land transportation infrastructure which has an important role in the economy, society and culture, environment, politic, defense, and security. Besides, roads are goods and services distribution infrastructure, therefore, they become the lifeblood of society, the nation, and the country. Road and bridge development are essential needs for the society, therefore need to develop road design that can minimize the impact on the environment. Kelok 9 Bridge is a bridge that has applied green infrastructure design. The concept of Kelok 9 Bridge is Nature and Engineering in Harmony. The design of this bridge is one example that can minimize the impact on the environment. This study aims to determine the impact of this bridge construction on the environment and its compatibility to the sustainable road principle. The method used to determine the impact on the environment and compatibility with the sustainable road principle was using literature study. The results from this study are there are several environmental impacts from this bridge construction that can be reduced e.g., the changes in land use. On the other hand, this bridge has applied several principles of sustainable road.

Keywords
Kelok 9 Bridge; Green infrastructure; Environmental impact; Sustainable road

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/E2hbNfV8P6kp

Corresponding Author
Ika Wahyuning Widiarti

Institutions
Department of Environmental Engineering, Faculty of Mineral Technology, Universitas Pembangunan Nasional Veteran Yogyakarta 55293, Indonesia

Abstract
Kopi Luhur Dumpsite is a waste dump facility from area surrounds Cirebon City. The Kopi Luhur Dumpsite has 9 hectares area that implements an open dumping system that may cause the spread of flies and rat vectors, release unpleasant odors, and reduce environmental aesthetics. Also, the Kopi Luhur Dumpsite has inadequate leachate treatment plant and methane gas control system. The aim of this study was to assess environmental risk due to dumping activities at the Kopi Luhur Dumpsite using IRBA (Integrated Risk-Based Approach). IRBA examines 27 parameters under three classes, namely, site-specific criteria, waste characteristics at the dumpsite, and those related to the quality of leachate from the dumpsite. Data were obtained through mapping in the field, interviews with managers and communities surround and testing samples in the laboratory. The research results showed that the Kopi Luhur dumpsite has corresponded to moderate hazard level with a total risk index score 575.3536. Therefore, the recommendation actions are immediate rehabilitation of the dumpsite into sustainable landfill.

Keywords
Kopi Luhur Dumpsite, IRBA, risk assessment

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/J7PE9zNjdqWb

Corresponding Author
Ekha Yogafanny

Institutions
(1) Environmental Engineering Department, Faculty of Mineral Technology, Universitas Pembangunan Nasional Veteran Yogyakarta
a) ekha.yogafanny[at]upnyk.ac.id
b) ardhiva.h.o[at]gmail.com
c) suharwanto[at]upnyk.ac.id

Abstract
Purwoharjo Village, Samigaluh Sub-district, Kulon Progo Regency is located at an altitude of 500 meters, lies on the Jonggrangan and Kebo-Butak Geological Formation, with a population of 3392 inhabitants. The most potential water source in the village is spring. The increasing number of population does not meet the availability of water in the area. The harmonization among the water sources, natural condition, and community are essential to achieve the optimal conservation strategy to sustain the good access of water in Purwoharjo Village. This research aims to analyze the characteristics of spring (spring-s type, water quantity, and water quality) and to investigate the community-based spring conservation in Purwoharjo Village. The methods used were quantitative and qualitative. The data used in these two analysis gained by survey, interview, and laboratory method. The study was conducted in five springs which have the highest discharge in Purwoharjo Village. Water quality was analyzed based on pH, COD, BOD, DO, TDS, TSS, CaCo3 turbidity and total coliform and compared to water quality standard class I Governor Regulation Of DIY Number 20 the Year 2008. The type of springs based on the flow consistency of these five springs was perennial spring because the water spring flowed both in rainy and dry season even though the discharge was fluctuated depend on the rainfall. Based on the discharge, these five springs were categorized as class VI ranging from 0.171 to 0.323 l/sec. Based on the gravitational power, the type of these five springs was fractured springs that are formed due to the rock cracks cut by the slope (topography). Springs conservation has been carried out by the community in Purwoharjo village in order to protect and preserve the water source, preserve the spring water, and manage the spring water quality as well as control the contamination in the spring.

Keywords
Community Based Springs Conservation, Fracture Spring, Perennial Spring

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/c8hgmvVYuJDr

Corresponding Author
Ludiro Madu

Institutions
Department of International Relations, UPN Veteran Yogyakarta
Jl. Babarsari No. 2, Tambakbayan, Yogyakarta 55281, Indonesia
ludiro[at]gmail.com

Abstract
Evacuation strategy is one of important stages in disaster management, particularly in the case of the 2010 erupsion of Mount Merapi, Yogyakarta, Indonesia. Rather than just evacuating people, the case shows that Indonesias government had to manage peoples livestock wisely without taking risks of increasing victims of human. Several incidents of natural disaster have improved Indonesias experiences in dealing with disaster management. Various approaches ---behavioural and structural ones--- have been applied in various natural disasters. However, those approaches cannot easily be imposed in the evacuation strategy at the Mount Merapi. This paper analyses the use of socio-cultural approach in handling evacuation problems at the 2010 erupsion of the Mount Merapi. This third approach is of importance for dealing with unique local condition of people lived arround Mount Merapi. Socio-cultural approach aims at helping disasters stakeholders successfully managed problems of evacuation. Although people were managed to be evacuated to secured areas, they frequently returned to their home in disaster areas. Learning from their daily life and local culture helps successful evacuation in the Mount Merapi by bringing people and their livestock out of disaster areas. This approach helps disaster stakeholders to learn about local wisdom of people who lived in sorrounding areas of Mount Merapi. Another lesson is that this evacuation strategy enabled disaster-affected people kept looking after and securing their livestock, while they lived in secured areas. Therefore, developing socio-cultural approach in the evacuation strategy of the Mount Merapi also helps complement ---rather than substitute--- other useful approaches which were formerly applied in other disaster areas for disaster management.

Keywords
livestock, people, socio-cultural approach, evacuation strategy, Mount Merapi.

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/2wrTX4Gpegyq

Corresponding Author
Donna Asteria

Institutions
1Communication Department, Faculty of Social and Political Science, Universitas Indonesia, Jl. Prof. Dr. Selo Soemardjan, Depok, 16424 Indonesia
2 Faculty of Health Science, Universitas Pembangunan Nasional Veteran, Limo, Kota Depok, 16515, Indonesia
3School of Environmental Science Universitas Indonesia, Jl. Salemba Raya No. 4 Central Jakarta 10430, Indonesia

Abstract
This paper aims to describe the strategic role of women through empowerment to improve post-disaster adaptability in the city. City resilience is an important condition to be achieved after a disaster occurs to support the realization of a friendly city for women and children. Empowerment efforts will increase the participation of women in the community because women have a strategic role in post-disaster environmental management. This study uses a quantitative approach with analytical techniques use AHP (Analytical Hierarchy Process) and descriptive statistics. This method with by utilized expert judgment from various stakeholders to predict approach for the development of more sustainable empowerment . The results of the study show that the development of empowerment with a gender equality approach through efforts to improve the ability of economic productivity can improve the adaptive capacity of women facing post-disaster. The important suporting for women are access and opportunities in the recovery and preservation of post-disaster environments in their communities. The contribution of this study as the development of disaster management and post-disaster policy planning in urban areas uses the approach of gender equality and community-based participation.

Keywords
urban resilience, womens capabilities, community participation, post-disaster adaptation, empowerment

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/zrJpWdjEYHbT

Corresponding Author
Yohana Noradika Maharani

Institutions
a) Disaster Management, Universitas Pembangunan Nasional Veteran Yogyakarta, Jl. Babarsari 2 Yogyakarta 55281 (Campus Unit II), Indonesia
*yohananm101[at]gmail.com
b) Department of Geoscience, Universitas Pembangunan Nasional Veteran Yogyakarta, Jl. SWK 104 (Lingkar Utara), Condongcatur, Yogyakarta 55283, Indonesia

Abstract
Disasters can cause enormous calamity in many ways which impacted people at all levels.The socially vulnerable individuals or communities often do not have enough data resources for disaster events, which makes it difficult for researchers and stakeholders to address cause-and-effect relationships between variables. In this study, Self Organizing Map (SOM) is used as an effective platform for analysis of a data set in a volcanic disaster in terms of the number of parameters and samples (or sites); while Social Vulnerability Index (SoVI) is used for vulnerability index creation to measure the level of vulnerability (high to low). Using SOM, this study, specifically, aims to classify the vulnerable areas and to determine the most important variables in characterizing social vulnerability levels for homogenous groups (or clusters) which are classified by the similarity of all variables. The data set used for this analysis consisted of 12 variables associated with socioeconomic features. We demonstrated that the SOM approach provided reliable estimates of clustering and the most significant variables, while SoVI works well in ensuring that positive value indicates high vulnerability, and vice versa. Therefore, it could be useful for the social vulnerability assessment by stakeholders and decision makers.

Keywords
Social vulnerability, Self Organizing Map, Social Vulnerability Index, Cluster analysis, Merapi eruption

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/7M2rK3FbZHAh

Corresponding Author
wana kristanto

Institutions
University of Pembangunan Nasional Veteran Yogyakarta

Abstract
After the 2010 eruption, the government declared that building settlement inside an area that directly affected by hot cloud should be avoided. Activities within Disaster Prone Area should be limited as the government declared. To accommodate the community, government through rehabilitation and reconstruction program provided house aid. It was a real settlement concept with a public facility. In a new place, a new strategy and way to keep living were needed. With their assets after the eruption, the community adapted to manage and utilize resources. This research aimed to assess perception change within the community on the character change of Mt. Merapi eruption and adaptation strategy to build community resiliency and their economic assets. This research utilized Participatory Rural Appraisal (PRA) in a participative way. Interview, focus group discussions were utilized as instruments, and supported by tendency and change, daily routine, mobility map, and plantation sketch. The result of this research used qualitative-descriptive analysis. Research showed that the character change of Mt. Merapi eruption enriched Batur residents- experience and knowledge. Therefore, they became more resilient in facing future eruption. Their resilience can be seen from their ability to manage their living assets. Adaptation within a new environment can be made through utilizing existed assets and managing it. Compared to the residents of Batur assets before the 2010 eruption, their assets tend to increase. Keyword: Mt. Merapi eruption 2010, permanent settlement, adaptation, resilience

Keywords
Mt. Merapi eruption 2010, Permanent settlement, Adaptation, Resilience

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/EAmf64tyLg2P

Corresponding Author
Indra Baskoro Adi

Institutions
Masters in Disaster Management at National Veteran Development University Yogyakarta

Abstract
Abstract: Within the decade of 1994 until 2010, Mt. Merapi erupted, which occurred in 1994, 2006, and 2010. In 1994, the hot cloud of Mt. Merapi went to northern west area, precisely to Boyong River. Then, in 2006, the threat changed the direction, to the southern part, precisely to Gendol River. Then, it escalated quickly in 2010, in which the hot cloud went 15 kilometers along with Gendol River. By examining the directional change of threat, the risk perception and adaptation strategy within the community can be influenced. This research aimed to (a). Review the Turgo Hamlet risk model (b). Assessing perceptions of changes in the eruption character of G. Merapi(c). Assessing the Adaptation of Livelihood Assets of Turgo Hamlet residents. Participative data collection was utilized in this research, with a qualitative method also used, by involving residents of Turgo hamlet within disaster-prone area III of Mt. Merapi a data resource. Primary data collection was assessed through Participatory Rural Appraisal (PRA) or participative rural condition assessment. The instruments were: interview, tendency and change, diversion, village history, mobility map, and Focused-Group Discussion. The results were descriptive-qualitatively analyzed. The research was located in Turgo hamlet, Purwobinangun village, Sub-district of Pakem. The research found that the resident of turgo understood the model of risk perception. The model of risk perception was in form change of directional of threat and the eruption character of Mt. Merapi. The residents- resiliency can be seen through their ability in implementing the strategy of adaptation while also analyzing and assessing to build community resilience.

Keywords
Mt. Merapi, perception, adaptation strategy, disaster-prone area, residents of Turgo hamlet

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/LpfUkTx9Rqa6

Corresponding Author
Dwi Fitri Yudiantoro

Institutions
a) Geology Engineering Department of UPN Veteran Yogyakarta
b) Environmental Engineering Department of UPN Veteran Yogyakarta
c) Geology Agency
d) Pharmacy Study Program of PGRI Madiun University
e) Postgraduate student of Geology Engineering Department of UPN Veteran Yogyakarta
f) Undergraduate student of Geology Engineering Department of UPN Veteran Yogyakarta
g) Institute Technology Bandung

Abstract
Abstract. The Ijen volcano was Pleistocene volcano and is one of the strato volcanoes which was active in the middle row of Java Island. This volcano erupts by magmatic and phreatic eruptions. This volcano has the largest natural lake in the world measuring around 960 x 600 m. The morphology of the crater was limited by embankments with heights between 2.145-2386 m. The lowest height of the western embankment was upstream from Banyupait River. The water volume of the crater lake of Ijen volcano is quite large and very acidic. The acidic water from the crater lake flows from upstream Banyupait River to the north to the lower direction of the Asembagus Situbondo area. In this study the methodology of field survey and measurement was used. The field survey was carried out along the flow of Banyupait Asembagus River, which began from the Bantal village to the mouth of the river in the Java Sea.In conducting a field survey pH measurements were also carried out from the river water of the Kali Banyupait. The observations showed that the river water upstream of Banyupait River had a pH of around 2-3, while the more towards the downstream the pH of the river water changed to an increase of around 3-4, because the acidic water of this river experienced dilution from several rivers in its area. Whereas in river estuaries, the river water mixes with the sea, so water has a pH of 4.2. Because river water is acidic (low pH), no biota along the Banyupait river was found. Besides that, the other characteristics of river water are brown. Rocks exposed to the river flow will be reddish in color, experiencing iron oxide. This was due to the interaction process of river acid with rocks. However, the river water was used by residents around the river for agriculture and daily necessities, consequently the health of the population around Bantal village was low.

Keywords
crater, volcano, acid, banyupait, health

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/vHV3qruxRCpQ

Corresponding Author
Muhammad Iman Luthfi

Institutions
a) Geological Engineering Department, Diponegoro University, Semarang, Indonesia
Jalan Profesor H. Soedarto Sarjana Hukum, Tembalang, Kota Semarang, Jawa Tengah 50275
*imanluthfi003[at]gmail.com
**z.hanani24[at]gmail.com
***putranto[at]ft.undip.ac.id

Abstract
Increasing and expanding the function of land use due to human activities can lead to potential pollution of groundwater. As a method that has been tested and has a precise scoring system, this study tries to use and compare the SINTACS and DRASTIC Methods to conduct groundwater vulnerability assessments (GVA). This study aims to create and compare the models of intrinsic and specific GVA from the SINTACS and DRASTIC methods and find out the most reliable model to be applied to the Karangkobar Groundwater Basin. Intrinsic GVA is carried out with the SINTACS and DRASTIC methods using seven parameters that are almost the same but differ in detail of classification, weight, and rating. The specific GVA is carried out with the Nitrate Vulnerability Index (Modified-DRASTIC) and SINTACS Specific Vulnerability Index (Modified-SINTACS) which uses additional parameters in the form of Anthropogenic Impact (AI) and Potential Risk Associated with Land Use (LU). These additional parameters are representations of land conditions that are affected by nitrate pollutants (NO3-). All models were validated using the nitrate concentration within 34 observation points to determine the level of models suitability with nitrate groundwater pollution conditions in the study area. The four GVA models show almost the same results. In general, areas with a High-Very High vulnerability are found in agricultural areas composed of pyroclastic sediment aquifers, while Low-Intermediate vulnerability levels are found in protected forest areas composed of alluvium deposits and pyroclastic deposits aquifer. Statistical analysis shows that the GVA models which have the strongest correlation (r = 0,8) with nitrate is the Nitrate Vulnerability Index model, so this model is considered the most appropriate to be applied in the study area.

Keywords
Karangkobar Groundwater Basin, groundwater vulnerability assessment, DRASTIC, SINTACS, nitrate

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/mrjA6yvTbZQq

Corresponding Author
Suliestyah Suliestyah

Institutions
a) Faculty of Earth and Energy Technology, Trisakti University, Jalan Kyai Tapa 01. Grogol Jakarta 11440, Indonesia

Abstract
Experiments have been made for preparation activated carbon with low rank coal as raw materials taken from PT. Bukit AsamTanjung Enim, Mining unit in South Sumatra, Bangko mining site. Chemical activated uses 40% ZnCl2 with 60% coal at 28 mesh, and carbonization was carried out at a temperature of 500oC for 2 hour. Preparation activated carbon from coal aims to see its potential as a metal adsorbent in a liquid solution. The iodine number was 1393 mg /g and the surface area of this activated carbon is 512 m2/g with a pore volume of 0.297 mL/g and pore diameter of 11,5 Å. The low rank coal activated carbon was used for the adsorption of Cu(II) and Fe(II) ions by using variations in the weight of activated carbon 600, 900, 1,800, 2,400 and 3,000 grams and variations in contact time 3, 6, 9, 12 and 15 hours. The results showed that a maximum removal percentage for Cu(II) 99.88 % was obtained for 3,000 grams of activated carbon with a contact time of 15 hours, and maximum removal percentage for Fe(II) 96.24% was obtained for 3,000 grams of activated carbon and 12 hours of contact time. The study produced micropore activated carbon with a large surface area and effectiveness for metals removal. Based on Freundlich isotherm, obtained that adsorption capacity of Cu(II) and Fe(II) were 1,967 and 1,829 mg/g. Based on Langmuir isotherm, obtained that adsorption capacity of Cu(II) and Fe(II) were 0,6277 and 0.955 mg/g.

Keywords
Keywords: activated carbon, chemical activation, carbonization, iodine number, metal adsorption

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/yAMQNjcxvpF9

Corresponding Author
Dina Asrifah

Institutions
Environmental Engineering Departement, Faculty of Mineral Technology, UPN Veteran Yogyakarta

Abstract
Gold mine wastewater have several sources, among them from gaold washing activity. Wastewater from gold washing activity has high turbidity, TSS and heavy metal content. These conditions are not safe for the environment if it-s disposed directly. Wastewater treatment is carried out using Electrocoagulation (EC) with a batch method. This study aims to determine the optimal efficiency and conditions for TSS, Cu and Hg removal from wastewater. This research is a laboratory study with variations in DC current voltage (6 volts, 9 volts and 12 volts) in the variation of detention time (15 minutes, 30 minutes and 45 minutes). Data analysis was performed by calculating removal efficiency of TSS, Cu and Hg parameters. The experimental results obtained EC removal efficiency on TSS, Cu and Hg parameters are high, ranging from 68.6 to 99.97%. The quality of treated wastewater complies with established quality standards for reuse or disposal into the environment. The optimum conditions for processing EC at a voltage of 9 volts during detention time 30 minutes.

Keywords
wastewater, gold minning, electrocoagulation

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/62T8KxCMjNBQ

Corresponding Author
Jaka Purwanta

Institutions
Department of Environmental Engineering, Universitas Pembangunan Nasional “Veteran” Yogyakarta, Pajajaran Street (SWK 104), Condongcatur, Depok, Sleman, Yogyakarta, 55283, Indonesia
Corresponding author: jaka.purwanta[at]upnyk.ac.id

Abstract
The purpose of this study was to perform the engineering optimization tool nozzle diameter cement dust in size have a negative impact on public health. It is necessary to control the spread of the cement dust from chimney cement plant with the flow of exhaust gases. This research was conducted in the laboratory and simulation using cement dust extraction equipment fogging method. Variables that are optimized sprayer nozzle diameter, while the other parameters at the cement dust catcher fogging method. His background is the amount of cement dust was still flying around the location of a cement plant in Tuban. The distribution of very fine were made permanent. Optimal operating conditions dust extraction equipment fogging method on a variable nozzle diameter is 1.40 mm in diameter with an average efficiency of 70.79%.In such operating conditions, a tool for cement dust fogging method can capture the fine cement dust optimally. This can reduce the spread of cement dust into the environment so as to improve air quality.

Keywords
nozzle diameter, cement dust, air quality

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/Jqg2zGLcRewN

Corresponding Author
NANDRA EKO NUGROHO NUGROHO

Institutions
Universitas Pembangunan Nasional Veteran Yogyakarta

Abstract
In the Purworejo regency, Central Java, there is a mountainous area, called Menoreh Hills. It is known as a disaster prone area, tectonically representing volcanic arcs of the central part of Java Island of the tertiary era. The stratigraphy of the area varieties from the oldest to the youngest rocks, respectively consists of volcanic rocks of the Kaligesing and Dukuh formations, limestones of the Jonggrangan Formation, marl-calkarenite intermittent of Sentolo Formation, and alluvial deposits. The Kaligesing Formation consists of andesite pyroclastic breccia, tuffaceous breccia, and lava breccia, the Dukuh Formation consists of laharic breccia, Jonggrangan Formation comprises reef limestones, Sentolo Formation comprises layered calcarenite limestone, alternating with marl, while alluvial deposits includes loose materials with various grain size. The geological structure found in the Menoreh Hills is in the form of joints and lateral slip faults with a general pattern of North West - Southeast and Northeast - Southwest. Especially the volcanic rocks in the Menoreh Hills have experienced extensive weathering, forming soil with a thickness reaches up to 5 meters. Because of the topography with quite steep slope (>20o or >36% ), the soil of quite thick (>2m), the presence of fracture structures that quite tight, triggered by high rainfall (.2000 mm/year), Menoreh Hills can be classified as landslide prone areas. In connection with this, a risk assessment needs to be carried out in the context of developing disaster management in the Purworejo Regency area.

Keywords
engineering-geology investigation, landslide prone area, risk assessment, disaster management

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/HuLm9TdvgEGB

Corresponding Author
Jaka Purwanta

Institutions
1) Department of Environmental Engineering, Universitas Pembangunan Nasional Veteran Yogyakarta,
Jl. Pajajaran (SWK 104), Condongcatur, Depok, Sleman, Yogyakarta, 55283, Indonesia
2) Department of Industrial Engineering, Universitas Pembangunan Nasional Veteran Yogyakarta,
Jl. Babarsari 2, Tambakbayan, Yogyakarta, 55281, Indonesia

a)Corresponding Authors Details: jaka.purwanta[at]upnyk.ac.id

Abstract
The purpose of this study was to engineer an increase groundwater reserves. The background of this study is the rapid physical development in the region Bedreg Hamlet, Maguwoharjo, Depok, Sleman, Yogyakarta make the conversion of land use significantly, from their yards and fields, into houses and businesses. This resulted in the reduction of green open areas and rain water catchment area. Fewer groundwater reserves are continuing impact of fewer rain water catchment area. It is necessary for the engineering study of the increase in reserves of groundwater in the region. This research was conducted by observation and using the map to determine the allocation of land and in the region, then performed calculations to determine the volume needs seepage of rain. It can be recommended to the local area stakeholders that to restore a number of groundwater reserves in the region will require a number of infiltration wells of rain water that must be made is distributed in the region. Based on this study, volume seepage of rain needed to equalize with a land area that has been hardened and existing buildings that 1,855.1193 m3. While the amount of rain water infiltration wells Recommended Bedreg made in the region that is at least a number of 1,231 units. If these recommendations are made by the community and supported by stakeholders in the region, the groundwater reserves Bedreg region will increase.

Keywords
groundwater reserves, infiltration wells, increase, stakeholders

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/frRcAvqjPdmp

Corresponding Author
Firmanul Catur Wibowo

Institutions
aDepartment of Physics Education, Universitas Sultan Ageng Tirtayasa
Jl. Raya Jakarta Km 04, Serang, Banten 14212, Indonesia
bDepartment of Physics Education, Universitas Negeri Jakarta
Jl. Pemuda 10, Rawamangaun, Jakarta 13220, Indonesia
aDepartment of Biology Education, Universitas Negeri Medan
Jl. Pasar V Timur , Banten Timur, Medan Kota, 20224 Medan , Sumatera Utara, Indonesia

Abstract
The aim of this research is to develop a design of MOOCS with Virtual Microscopic Simulation (VMS) for students model of understanding. The research method used was Experimental Design with the subjects of the study were 80 students in one of the Senior High Schools in Banten Province, Indonesia. The results showed that the highest understanding is Optimal Model (OM) is 75.56%, Non-Creative Model (NCM) is 7.78%, Theoretical Model (TM) is 4.44 Practical Model (PM) is 4.44% , Memorizing Model is (MM) 10%, and Has No Model (TKM) is 0 %. It was concluded that the average understanding model experienced a significant increase with learning through MOOCS with VMA on the concept of Heat Transfer in the environment.

Keywords
Environmental Issues; Virtual Microscopic Simulation (VMS); MOOCS; Student-s Model of Understanding.

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/ARehNfMFqxdZ

Corresponding Author
Nabila Farhaini

Institutions
Department of Environmental Engineering, Faculty of Mineral Technology, Universitas Pembangunan Nasional “Veteran” Yogyakarta
SWK Street No.104, Ngropoh, Condongcatur, Depok Sub-District, Sleman District, Special Region of Yogyakarta

Abstract
The Special Region of Yogyakarta is one of the most visited regions for recreational purposes in Indonesia. One of the most visited recreational areas is Baron – Pok Tunggal Beach District, where Sundak Beach located. Based on Yogyakarta-s Department of Tourism, the amounts of visitors of Baron – Pok Tunggal Beach District has increased from 518.899 in 2013 to 2.224.656 in 2017. At July 2018, Sundak Beach was damaged by the high waves as the result of heavy rains, causing the seagrass and corals ecosystem disturbed and damaged. The high waves also damaged the settlement and recreational area around the beach. The purpose of this study is to determine and evaluate the land carrying capacity of Sundak Beach as a coastal recreational destination. Evaluation of Sundak Beach land carrying capacity will be determined by calculating the land suitability and capability as a coastal recreational site. Based on the measurements and observations, Sundak Beach-s suitability as a coastal recreational area is 64,28% (quite sufficient as a coastal recreational area) with a rather good land capability with few limiting factors. The result of this study may provide a suggestion for the development of coastal management by the government and the local community.

Keywords
coastal management; land suitability; land capability

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/NnZFQTXyhctJ

Corresponding Author
Andiny Widya Utari

Institutions
School of Environmental Science Universitas Indonesia, Jl. Salemba Raya No. 4 Central Jakarta 10430, Indonesia

Abstract
Indonesia, as one of the largest population country, faces a problem with the availability of clean water. The increasing of the population every year results in the increasing of clean water needed. It also causes the increase of wastewater, especially domestic wastewater. As one of domestic wastewater, household wastewater in Indonesia, especially DKI Jakarta, is one of the main cause of river pollution. Household wastewater disposed directly into the river. Chemical Oxygen Demand (COD) and Total Suspended Solid (TSS) are some substances contained in it. Therefore, it is necessary to manage the wastewater before the disposal. Filtration processing is one of the wastewater treatment method used to reduce the pollutant level in the water. The materials are able to reduce the concentration of COD and TSS. This study aims to verify if filtration can be used as a method to reduce household wastewater by the study of literature. Besides, the researcher also used other materials to process sample from household wastewater. Filtration can be used as a simple method, so that it can be applied by the community, especially those not covered by wastewater treatment plant (WWTP).

Keywords
COD, filtration, household, TSS, wastewater

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/VgxWjhJEHcCk

Corresponding Author
Ayu Utami

Institutions
Universitas Pembangunan Nasional Veteran Yogyakarta

Abstract
Indonesia is one of the countries which have geothermal potential as a renewable energy resource. Forty percent of world-s geothermal energy potential, at 28,000 megawatt (MW) is estimated found in Indonesia. Activities in geothermal also generates some waste, including solid waste. The source of solid waste in geothermal energy, i.e. drill cuttings, scale from cooling water, scale from maintenance, domestic waste, hazardous solid waste from the machine and heavy equipment maintenance, and others. The objectives of this study are to explain the source, type of solid waste, and solid waste management of geothermal energy utilization in Indonesia. The methods used in this study are field observation, literature review, and interview with the worker in the geothermal field. The sources of geothermal solid wastes are from the drilling process, maintenance, utilization of geothermal energy process, office, and domestic. The type of wastes are drill cutting, domestic wastes (paper, paper box, wood, construction material waste, grasses and leaves from trees, food waste, sludge (contain silica in Dieng), hazardous waste, and mixed waste. Geothermal energy field manage the solid waste based on the characteristics of the waste. This study could give an information about general waste and how to manage the solid waste in the geothermal energy industry.

Keywords
geothermal industry, geothermal waste, solid waste management

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/3K84vtUXE6JM

Corresponding Author
Wrego Seno

Institutions
Geophysical Engineering Departement, Faculty of Mineral Technology, UPN “Veteran” Yogyakarta

Abstract
Karangsambung regions is located in Kebumen District of Central Java Province which morphologically is composed of sloping montains and hills, therefore Karangsambung region has landslide hazard potentials.Ground Penetrating Radar (GPR) methods has conducted in these research to delineating slip plane of landslides potential areas as the base of landslide potential assesments. GPR measurements consists of four lines which has a length of 170 - 550 meters than the field data has processed to produce the radargram section. The radargram section has interpreted to delineating slip plane of landslides, and as the results slip plane has detected in the depth between 5 - 20 meters from surface and has potential of landslides occur.

Keywords
Landslides, Slip Plane, GPR Methods

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/n2Kvd6ExNrMm

Corresponding Author
Rizqi Prastowo

Institutions
(a) Institut Teknologi Naisonal Yogyakarta, Jalan Babarsari, Caturtunggal, Depok, Sleman, Yogyakarta
(b) Institut Teknologi Sumatera, Ryacudu Bypass, Way Hui, Jati Agung, South Lampung, Indonesia
*vico.luthfi[at]fi.itera.ac.id
(c) Kwansei Gakuin University, japan

Abstract
Jati Agung District is an area planned by the Lampung government to become a new city of the central government in Lampung. Aspects of city planning include aesthetics and safety. The geophysical study is conducted as disaster mitigation efforts to make the city have a good level of safety. The purpose of this study is to measure earthquake activities in the research areas that could be developed as data in disaster mitigation. The geophysical study was conducted by measuring the microtremor at 15 points. The microtremor signal is processed by the HVSR method to obtain information on natural frequency and amplitude. Natural frequencies and amplifications were analyzed to obtain the Peak Ground Acceleration (PGA) and Ground Shear Strain values. The results of PGA values and Ground Shear Strains indicate indications of soil fracture-prone areas. The results showed that the PGA value was 12.34638 gal to 22.18974 gal, while the Ground Shear Strain value was 53.34322x10-6 to 729.6847x10-6.

Keywords
Earthquake; geophysics; PGA; Ground Shear Strain; microtremor

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/ENADMBLJga3Q

Corresponding Author
BIMA PRABAWA DEWA GEDE

Institutions
(a) Institut Teknologi Naisonal Yogyakarta, Jalan Babarsari, Caturtunggal, Depok, Sleman, Yogyakarta (b) Institut Teknologi Sumatera, Ryacudu Bypass, Way Hui, Jati Agung, South Lampung, Indonesia (c) Kwansei Gakuin University, japan
*vico.luthfi[at]fi.itera.ac.id

Abstract
Jati Agung District is an area planned by the Lampung government to become a new city of the central government in Lampung. Aspects of city planning include aesthetics and safety. The geophysical study is conducted as disaster mitigation efforts to make the city have a good level of safety. The purpose of this study is to measure earthquake activities in the research areas that could be developed as data in disaster mitigation. The geophysical study was conducted by measuring the microtremor at 15 points. The microtremor signal is processed by the HVSR method to obtain information on natural frequency and amplitude. Natural frequencies and amplifications were analyzed to obtain the Peak Ground Acceleration (PGA) and Ground Shear Strain values. The results of PGA values and Ground Shear Strains indicate indications of soil fracture-prone areas. The results showed that the PGA value was 12.34638 gal to 22.18974 gal, while the Ground Shear Strain value was 53.34322x10-6 to 729.6847x10-6.

Keywords
Earthquake; geophysics; PGA; Ground Shear Strain; microtremor

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/UtTp4bGEx9YK

Corresponding Author
Arip Munawir

Institutions
UPN Veteran Yogyakarta - Master Program in Management Disaster

Abstract
Karawang Regency in Regional Regulation (Perda) No.2 of 2013 concerning Regional Spatial Planning (RTRW) 2011-2031 in Article 54 mandates the development of industrial strategic areas in Telukjambe (Kec. Telukjambe Barat, Timur and Ciampel). Karawang in January 2014 experienced flooding at several points resulting from the overflow of the Cibeet River and the Citarum River. Distribution of this flood occurred in the district Telukjambe West, East, Ciampel, Karawang West and East. Underground river systems and cave networks in the Jatiluhur Formation have the potential to reduce the discharge load from existing surface rivers. Cave systems and underground rivers in the Kuta Tandingan Hills can reduce surface runoff by up to 80%. The porosity of the Kuta Tandingan Hills can reduce surface flow by 21%. The peak load of the Citalahab River occurs at the beginning of the river where the channel is narrow, but the additional load from the surface flow is so large.

Keywords
Karawang, Regional Spatial Planning, Industrial Area, Jatiluhur Formation, Kuta Tandingan Hills, Underground River, Cave, Porosity, Run Off, River, Peak Load.

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/rC7azkweH24N

Corresponding Author
Afiat Anugrahadi

Institutions
a) Geological Engineering Department, FTKE Universitas Trisakti, Jakarta, Indonesia
*afiat[at]trisakti.ac.id
b) Mining Engineering Department, FTKE Universitas Trisakti, Jakarta, Indonesia

Abstract
The Palu earthquake on 28 October 2018 not only destroyed the facilities and infrastructure of human life in the Palu area and its surroundings, but also geological aspect. The earthquake geologically not only caused land and rock movements, tsunamis, and geological damage such as the formation of new faults and fractures, but liquefaction also occurred. The geological survey was carried out five days after the earthquake, the data and information obtained were used to analyze geological impacts of the earthquake. Visually, it is clear the movement of land and rocks on the surface of the earths earth around Palu with the collapse and collapse of houses, hotels and various human settlements. Activation of faults and fractures has caused a shift in the road lane in Palu - Donggala. Subsidence was caused by active faults, especially Palu-Koro fault, as an impact of the Palu tectonic earthquake between 0.5 - 2.5 meters.

Keywords
Earthquake; Palu; Fault; Subsidence.

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/3ZGnN4uP9LDA

Corresponding Author
Gracio Haggai

Institutions
1
Program Studi Teknik Pertambangan, Fakultas Teknologi Kebumian dan Energi,
Universitas Trisakti, Jalan Kyai Tapa No.1, Tomang, Grogol Petamburan,
Jakarta Barat, Daerah Khusus Ibukota Jakarta 11440

2.
Dosen Program Studi Teknik Pertambangan, Fakultas Teknologi Kebumian dan Energi,
Universitas Trisakti, Jalan Kyai Tapa No.1, Tomang, Grogol Petamburan,
Jakarta Barat, Daerah Khusus Ibukota Jakarta 11440

Abstract
According to Landslide Threat Map 2016 prepared by BPBD-s Keumen, all districts in Kebumen is a high-potential areas of landslides. Therefore, we need more detailed mapping area regarding the area prone to landslide. In this study, Anbaagan method (1992) is used to analyze landslide zoning prone. Anbalagan method calculates six factors causing landslides, such as slope degre, wetness, vegetation density, structure, rocks, and relatif relief. Kedungwaru is a villagelocated in District Karangsambung, Kebumen, Central Java and geographically S 7 ° 35 557 , E 109 ° 40 011.The research result in Kedungwaru village tells there are two zones prone to landslides. First, the 48,5% low hazard prone zone in Kerajan, Rawajmambe, Kaliwadas and Gayam village. Second, the 51,5% medium hazard prone zone in Tegalsari village.

Keywords
Landslide, Photogrametry,GIS

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/VMCeFAGbwpWd

Corresponding Author
Herlando Bubala

Institutions
UPN "Veteran" Yogyakarta

Abstract
The settling pond is a reservoir of water from the mining area which carries it heavy metal particles to be sedimentation first before its flowing out of the area mining. so that it does not cause pollution. The problem in this research area is Dimensions of the setting pond could not accommodate incoming water discharge when rainfall is high, and it makes the water overflows and directly enter the coastal waters so it is indicated to arise heavy metal pollution. The purposes of this research are to examine the dimensions of the settling pond, determine erosion hazard level and countermeasures carried out. In accordance with the rainfall data, it can calculation of the mine drainage system is carried out, namely (1) The planned rainfall using the Gumbel method obtained at 156,046 mm/day. (2) The intensity of rainfall was obtained at 28,731 mm/hour. (3) The catchment area is DTH I with an area of 0,43 km2, DTH II with an area of 0,11 km2, DTH III covering an area of 0,43 km2, (4) runoff discharge obtained by DTH I of 2,36 m3/sec, DTH II of 0,79 m3/sec, and DTH III of 2,66 m3/sec . (5) The total discharge of runoff water from 3 DTH so that it was obtained at 5,82 m3/sec. According to the discharger and settling speed of 0.000997 m/sec, the settling area is obtained the pond is 5839,46 m2 and the settling pond volume is 23.520 m3 with 4 m inside the volume is greater than the actual volume in the field. Another cause is erosion so that runoff water flows directly into the pond settling without going through open channels which causes fast water, this is evidenced by the calculation of erosion hazard levels with the USLE equation the average erosion rate (A) is 540,5646 tons/ha/year so that it is included in class V with erosion hazard level in very heavy category (B). Then the countermeasures are carried out by revegetation on the slope so that if revegetation has been carried out then the average value erosion rate (A) is 172,98 tons/ha/year so the erosion hazard level is reduced to class III with medium category (S).

Keywords
rainfall, settling pond, erosion, revegetation

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/mYJTvueL96wC

Corresponding Author
Purbudi Wahyuni

Institutions
a) Faculty of Economics and Business, Universitas Pembangunan Nasional Veteran Yogyakarta, Jl. SWK 104 (Lingkar Utara), Condongcatur, Yogyakarta 55283, Indonesia
*purbudiwahyuni11[at]gmail.com
b) Disaster Management, Universitas Pembangunan Nasional Veteran Yogyakarta, Jl. Babarsari 2 Yogyakarta 55281 (Campus Unit II), Indonesia

Abstract
Floods and landslides pose a danger in the Sungai Gajah Wong regions, Yogyakarta where the area is situated at densely populated area with narrow road access. The disaster can lead to several casualties, causing the destruction of public and private infrastructure, as well as hitting thousands of households. By using SWOT analysis, this paper identifies the local wisdom called Mundur Munggah Madhep Kali (M3K) by conducting in-depth interviews involving stakeholders and affected communities. There has even been a MoU between the government and affected communities accompanied by Gajah Wong FORSIDAS. The target of affected communities is about more than a thousand households where they live on state land. At present, there were 247 households that are aware and willing to comply with government policies and implement the Mundur Munggah Madhep Kali. Resultantly, this action is to protect households, economic facilities, and transport infrastructure, as well as help the stakeholders and decision makers in order disaster mitigation effort through a policy planning and action.

Keywords
Reconstruction Management, Disaster Mitigation, SWOT Analysis, Local Wisdom, Mundur Munggah Madhep Kali, Gajah Wong River

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/wnYzc7yedqF9

Corresponding Author
Reza Aryanto

Institutions
1
Program Studi Teknik Pertambangan, Fakultas Teknologi Kebumian dan Energi,
Universitas Trisakti, Jalan Kyai Tapa No.1, Tomang, Grogol Petamburan,
Jakarta Barat, Daerah Khusus Ibukota Jakarta 11440

2
Dosen Program Studi Teknik Pertambangan, Fakultas Teknologi Kebumian dan Energi,
Universitas Trisakti, Jalan Kyai Tapa No.1, Tomang, Grogol Petamburan,
Jakarta Barat, Daerah Khusus Ibukota Jakarta 11440

Abstract
Indonesia is a country that has a tropical climate. Countries that have a tropical climate only have two seasons namely the rainy season and the dry season. During the rainy season, most of the water falling in the village of Kedungwaru goes to the drainage channel which is wasted into the river, and some of the rainwater is absorbed by the soil in an area called infiltration. Rainfall when in the field is quite high, and this greatly affects the infiltration of land in the area. If the soil ability to absorb water is not in accordance with the rainfall, the soil will not be able to seep into the water and the water will pool. This is due to the constant infiltration rate of the percolation rate through the soil. Because of this phenomenon, this area is a difficult challenge, flood, landslide. Therefore the mapping of infiltration rate in Kedungwaru village is used to determine the rate of infiltration and can be used to measure and control the conditions so that the extreme negative can be prevented.

Keywords
infiltration, water, rain

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/KZRpgP8VyELJ

Corresponding Author
Muhammad Gazali Rachman

Institutions
Department of Geological Engineering, UPN "Veteran" Yogyakarta

Abstract
Physiographically, Pohijo Village, Sampung District, Ponorogo Regency is located in Solo Depression Zone East Java which is near with Lawu active volcano. Administratively, Pohijo village is near from Pacitan Regency where Grindulu Active Fault is located. Girindulu fault is NE-SW oriented which continuity is not yet known until now. This research was started with desk study by learning seismicity history of the area where the research is conducted. Then, a detail observation by doing field mapping was done. Based on the field data, it was found that there is evidence which are then identified as active fault named Pohijo fault. That evidence is divided into three areas which are North area (Kruwe village, Magetan regency), Central area (Pohijo village, Ponorogo regency), and South area (Bakalan village, Wonogiri regency). In Kruwe village, an evidence in the form of abrupt terrace and landslide were found. It is predicted that those are caused by the fault of strike slip which cuts lithology in the forms of unconsolidated materials and is N 010o E oriented. In the central area, Pohijo village, landslide, road shifting, and some broken society-s houses were found. The cut lithology are in the forms of unconsolidated materials and N 035o E oriented. In South area which is located in Bakalan village, Wonogiri regency, Central Java province, there are five damaged houses, landslide, and cracked ground. The lithology which is passed by the fault is bedded clastic carbonates. Based on the evidence of the active faults found in the field, it is concluded that Girindulu fault is continuous up to the North area passing by Wonogiri regency, Ponorogo regency, and Magetan regency. Thus, mitigation disaster plan of Girindulu fault should be re-observed so that the disaster risk effect can be minimalized

Keywords
Active fault, Ponorogo, Grindulu, Earthquake mitigation

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/6ZEUv8PuCq2e

Corresponding Author
Melisa Tabi Padang

Institutions
Environmental Engineering UPN "Veteran" Yogyakarta

Abstract
Oil spill is one of the pollution which has a serious impact on the water and land area. Marine pollution has an impact on changing the marine environment. The purpose of this study is: (1) analyzing intensity potentials of oil spills, (2) Analyzing the direction of the spread of oil spills, (3) Formulate environmental sensitivity to oil spills based on ESI, (4) Determine strategies for handling oil spills. The initial stage of the research is literature study and survey of observation locations. The research observation point is based on consideration of tentative maps. The ESI parameters (Vulnerability Index, Ecological Index and Social Index) that have been obtained are then calculated to obtain the sensitivity level of the research area. The magnitude of the sensitivity value of the coastal environment is known based on the results of interpretation, digitization, direct observation in the field and calculations. Natural factors that are more dominant influence on coastal conditions obtained from the results of the analysis are then described. The value of coastal ESI is used as the basis for determining direction and management techniques for handling oil spills in Pari Island, Kepulauan Seribu Regency.The results showed that the level of environmental sensitivity was divided into 2 categories. These two categories are sensitive levels (ESI II zones) and quite sensitive (ESI III zones). The intensity of the potential for an oil spill is quite high, supported by the presence of 200 vessel owned by residents which almost every day operates. The direction of the spread of the oil spill tends towards the northeast and northwest. Appropriate handling techniques use technical approaches, socio-economic approaches and institutional approaches.

Keywords
environmental sensitivity index, oil spill, zone of mangrove, oil boom, oil absorbent, oil skimmer, APO.

Topic
Disaster Management and Environmental Issues

Link: https://ifory.id/abstract/ewb9aNxrV8JF