期刊
WASTE MANAGEMENT
卷 33, 期 3, 页码 714-721出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2012.09.007
关键词
Electronic waste; Material flow analysis; Waste management; Hong Kong
资金
- Public Policy Research Grant [HKBU 2001-PPR-5]
- Research Grants Council of Hong Kong, a Hong Kong Polytechnic University research project, Cross-Border Environmental Protection Between Hong Kong and Guangdong Province [1-BB05]
- Hong Kong Baptist University [FRG1/08-09/037, FRG1/11-12/018]
A material flow study on five types of household electrical and electronic equipment, namely television, washing machine, air conditioner, refrigerator and personal computer (TWARC) was conducted to assist the Government of Hong Kong to establish an e-waste take-back system. This study is the first systematic attempt on identifying key TWARC waste disposal outlets and trade practices of key parties involved in Hong Kong. Results from two questionnaire surveys, on local households and private e-waste traders, were used to establish the material flow of household TWARC waste. The study revealed that the majority of obsolete TWARC were sold by households to private e-waste collectors and that the current e-waste collection network is efficient and popular with local households. However, about 65,000 tonnes/yr or 80% of household generated TWARC waste are being exported overseas by private e-waste traders, with some believed to be imported into developing countries where crude recycling methods are practiced. Should Hong Kong establish a formal recycling network with tight regulatory control on imports and exports, the potential risks of current e-waste recycling practices on e-waste recycling workers, local residents and the environment can be greatly reduced. (C) 2012 Elsevier Ltd. All rights reserved.
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