Geothermal Energy Solid Waste Management: Source, Type of Waste, and the Management
Ayu Utami1, Nugraha Aji, Almira Fadyah , Aldo Ghifari, Mufi Bustomi Anam, Syahriar Ramadhani, Faiz Helmi Rasyid
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