Effect of Biofilm Efficiency Ammonium of Pond Wastewater Treatment Syauqina Nashihi Aufar1, Titik Istorokhatun1, Sudarno Utomo1, Munasik Munasik2
1 Department of Environmental Engineering, Diponegoro University, Semarang-Indonesia 2 Department of Ocean Studies, Diponegoro University, Semarang-Indonesia
Abstract
Treatment of wastewater in fish ponds is an effort to reduce the impact of pollutants contained in the wastewater so that it can be disposed into the aquatic environment safely. The purpose of this study is to understand and analyze the effect of inoculant sources on removing of total ammonium in vanamae shrimp and marguensis shrimp pond wastewater, and to pre-design the technology for treating high-salinity organic waste with biological wastewater treatment using natural microorganisms. The study was conducted using a laboratory scale reactor. At the beginning of the study, adherent biofilm media was planted at the bottom of the sea with a depth of 1.5 m for 3 weeks in order to grow nitrifying bacteria, then applied to treat pond wastewater. The results showed that the efficiency of ammonium reduction with adherent media from Telukawur is 74% while adherent media from Panjang Island is 66% with declining and fluctuating trends every day. The large -scale application for treating wastewater from brackish water aquaculture is designed with 4 processing units, a 15.5 m x 7.7 m x 1.5 m sedimentation basin, a 10.5 m x 3.5 m x 1.5 m anaerobic basin, a 13 m x 13 m x 1.5 m aerobic basin, and a 15.5 m x 7.7 m x 1.5 m effluent basin. It can be concluded that biofilm adhesion technology from Panjang Island waters and Telukawur waters can work efficiently in removing ammonium concentration.
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