Sarwoko Mangkoedihardjo, Rachmat Boedisantoso : Composition of Toxic Leachate and Unstable Compost to Produce Biodegradable Material
Prof. Dr. Ir. Sarwoko Mangkoedihardjo MScES
Dr. Ir. Rachmat Boedisantoso MT.
This paper reports a study of mixing two materials that were toxic leachate and unstable compost,
aiming to produce biodegradable material. Various low levels of BOD/COD of leachate were mixed with various
high levels of C/N of unstable compost. CO2 evolution test was performed to measure the degree of
biodegradable materials. The leachate contained BOD and COD that were more than 100 and 500 mg LG1
respectively and represented by BOD/COD ratio of less than 0.1. The compost characterized by C/N ratio in the
range of 15-20. Results showed that leachate and compost mixture produced biodegradable material. A mixture
containing 20% leachate and 80% compost produced high level of biodegradable material.