The Potential of Energy Production and Greenhouse Gases Emission Reduction from Households Organic Waste in Bandar Lampung, Indonesia

Abstract

Abstract Households Organic Waste (HOW) is the type of waste dominantly found in the Bakung landfill, Bandar Lampung. It is because HOW from the settlements is only collected and transported to the landfill without any recycling treatment. A study was carried out to determine the potential of biogas generation and greenhouse gases (GHG) emission reduction related to the rate of generation waste, composition, and characteristics of HOW in Bandar Lampung city. The method for collecting sample and analysis procedure in this work was following into SNI 19-3964-1994. From the data results of sampling and measurement, it was known that the average HOW generation rate was 0.11 kg/person/day, which consists of 26.39% of vegetable scraps, 44.83% of fruit scraps, and 28.79% ripe food scraps. The Total Solids (TS) of HOW was 6.70%. Utilization of HOW to produce biogas was conducted through crushing the HOW in the crusher by adding water with ratio water, and HOW was 3:1. Based on estimation production data of HOW in 2020, it was estimated that Bandar Lampung city could produce about 1.40 million m3 of CH4/year, which is equivalent to 1.07 million kg of LPG. Meanwhile, converting HOW to produce biogas, it was estimated will reduce 21.09 million kg of CO2-eq/year of GHG emissions.