Bio-drying Technology of Solid Waste to Reduce Greenhouse Gas

Abstract

Bio-drying technology is a solid waste treatment with a decentralized system, in which solid waste will undergo biological-mechanical bioconversion. The heat generated from the aerobic decomposition process of organic compounds combined with excess air serves to drain solid waste. The bio-drying process will emit VOCs and other gases that potentially cause global warmings such as carbon dioxide (CO 2 ), methane (CH 4 ), and nitrous oxide (N 2 O) gases. The research method used variation of airflow from 0, 2, 3, 4, 5, and 6 l/m. N 2 O gases were analyzed using Chromatography gas. The results showed that the bio-drying process was able to reduce the water content from 69% to 40% by the thirtieth day. N 2 O concentration difference between control (no aeration) and waste with bio-drying processing is 534.69 ppb and 175.48 ppb respectively at 1 st day. N 2 O concentration are known when the bio drying process uses a 4 l / m discharge.