DefinePK

Abstract

This paper evaluates the level of household hazardous waste (HHW) contamination due to the current local Municipal Solid Waste Management (MSWM) practices and proposes applicable solutions through improvement of current recycling facilities and the inclusion of HHW management system in Indonesia. HHW contamination is indicated by the concentration of Hg, Pb and Cd at Padang Municipal Landfill. Evaluation on current MSWM shows that Padang City does not practice source-separated collection, enough waste recycling activities, and HHW management system. Those conditions result in HHW-contaminated waste, which causes the concentration of Hg, Pb, and Cd at the landfill site exceeds the national maximum limit. The LCA model, Integrated Solid Waste Management Model (ISWM), was used for comparing the heavy metal concentrations of current MSWM and 2 improved scenarios. The LCA on improved scenario #1 results in the reduced concentration of the heavy metals by around 12.76%. Meanwhile, the inclusion of HHW management system would further reduce the heavy metal concentrations by around 60.74% as suggested by scenario #2. It may be applied to Padang City and other Indonesian Cities with some changes to a current system such as establishing a rule for HHW management system, practising source-separated collection system, and improving recycling activities.