Modelling of Household Hazardous Waste (HHW) Management in Semarang City (Indonesia) by Using Life Cycle Assessment (LCA) Approach to Reduce Greenhouse Gas (GHG) Emissions

Hazardous and toxic materials are not only produced by industrial sectors. But also by household sector. Unfortunately, no establish regulation and standard operational procedure was found for handling HHW. Most of HHW are currently mixed with domestics waste. So that, it can impact on the health and the reduction environment quality. The research aimed to produce the most effective and efficient model of household hazardous waste by considering the impact on the environment especially related to global warming and the indicator of greenhouse gas emissions. This research used Life Cycle Assessment (LCA) approach according to ISO 14040: 2006 by using 150 kg of household hazardous waste. The impact category (LCIA) was observed and limited on global warming with the indicator of greenhouse gas (GHG) emission. The LCIA method used was IPCC 2007 GWP 100a V1.01 by using Simapro program version 7.1. The result show, recycling HHW is the best scenario based on the LCA approach. The impact of greenhouse gases emissions is only about 135,25 kg CO2 eq release to environment.