DESIGN OF GARDEN WASTE TREATMENT USING BIODRYING FERMENTATION AT WASTE4CHANGE BEKASI

• Main Author: Marga Surya Putra, Sapta
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/70542
• Institution: Institut Teknologi Bandung

Waste4Change is a responsible waste management company. One of the waste that is processed is garden waste which can reach 800 kg/day. The processing of garden waste that has been carried out is the composting method. However, due to the large input, long processing time, and limited land, the processing is not effective, so a more effective technology is needed for treating garden waste. Technology selection is based on 9 sub-criteria and uses the AHP method to select the most appropriate technology. The selected technology is biodrying fermentation. Biodrying is a process of softening and drying waste with the help of organic bioactivators. The design components start from the unloading area, the chopping area, the processing area using biodrying boxes, the pellet area, and the storage and packaging. The building is formed of a concrete floor, with steel pillars, and a steel frame roof frame in the hangar. Based on the economic feasibility analysis, it was obtained that the NPV> 0 was Rp. 49,376,253 and the Payback Period could be fulfilled within 2.27 years, which means that this project is economically feasible and has the potential to provide benefits. The potential offtakers or beneficiaries of this pellet product are from the industrial sector, namely Semen Indonesia, Indonesia Power, and PLTSa Bantargebang for co-firing. As for the domestic sector, it comes from households such as vida housing to be used as space heaters and stoves.