Authors: Bernard Jia Han Ng Yu Mao ChiaLung Chen Rajinikanth Rajagopal JingYuan Wang
Publish Date: 2015/06/25
Volume: 19, Issue: 1, Pages: 560-569
Abstract
Municipal food waste is a global challenge in solid waste management especially in Singapore It is scattered in location nonignorable in quantity and nonuniform in quality This report focuses on the state of the art and challenges of Singapore municipal food waste management for the first time The previous studies only focus on general food waste from both industry and municipality The physical properties of municipal food waste are incompatible to landfill and incineration by creating secondary environmental burdens and lowering treatment efficiency A decentralized anaerobic codigestion with other substrates after comparing with other technologies is recommended since bioenergy is a recognized valuable final product in Singapore’s context However there are four major highlighted challenges of food waste recycling including low final product demand inefficient waste collection design cheap disposal cost and low social awareness A “food waste management hierarchy” for Singapore is also proposed The most to least preferred options are listed as source reduction industrial uses renewable energy and composting then incinerationThis study is supported by the National Research Foundation Singapore program number NRF408 CRP5200902 for the School of Civil and Environmental Engineering/Residues and Resource Reclamation Centre Nanyang Technological University Singapore We appreciate Mr Harley Chia Guo Wei Ms Lim Jun Wei Mr Ivan Ho and Mr Ashiq Ahamed for their assistance in the experimental work
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