Experimental Study of Wet Torefaction Proccess to Convert Municipal Waste Converter into Compost and Biogas Raw Material

• Main Author: Pramudita Kaswiyanto (nim : 13113028), Rio
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/30518
• Institution: Institut Teknologi Bandung

<p align="justify"> <br /> <br /> <br /> Bandung city produces about 1800 ton of waste daily, which dumped to TPA Sarimukti. About 53.74% of Bandung waste is dominated by organic matter, comprised of food-leftovers, vegetable waste, and fruit waste. This waste can actually still be processed in TPS, to reduce transportation cost and minimize the space used at TPA. <br /> <br /> According to previous research on hardwood, wet torrefaction process could accelerate the maturing process of a compost compared to conventional composting, and could increase the methane production as a product of Anaerob Digestion. Wet torrefaction itself is a thermochemical process that use water at high temperature and pressure. The experiment used a 2.5 liter laboratory scale reactor. Process parameter that being used was holding temperature, varied between 125 and 200 &#8451;. The organic waste sample was according to the result of survey at TPS Patrakomala Bandung. During the product quality test, the maturity of compost was shown by daily carbondioxide production, meanwhile the methane production was shown by Gas Chromatography experiment. <br /> <br /> Wet torrefaction of municipal waste was proven to shorten the maturity process of a compost up to 74%. Wet torrefaction product at holding temperature of 175 &#8451; produce the fastest mature compost, and the liquid product has potential to produce the largest amount of methane gas about 33.78 of methane for one kg of sample. It can be concluded that wet torrefaction process can be chosen to process the organic waste at TPS, so it will reduce the transportation cost and space at TPA.<p align="justify"> <br /> <br />