Evaluations of existing waste recycling methods: A Hong Kong study

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W. Y. Tam, Vivian
Tam, C.
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2006
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Abstract

Environmental problems have been considered as a serious situation in Hong Kong construction. Waste management is pressing harder with the alarming signal warning the industry. Reuse, recycling and reducing the wastes are considered as the only methods to recover the wastes generated; however, the implementations still have much room for improvement. In order to ameliorate the existing situations, evaluations of the existing waste recycling methods are studied in this research. A telephone interviewing to the recyclers, site visits to the construction and demolition sites (including the Lower Ngau Tau Kok Estate Phase 1) and the centralized recycling plant in Tuen Mun Area 38 are under investigation. Difficulties encountered for various recycling parties are investigated. Rather than the poor quality found from the recyclable materials, they found the high investment cost, lengthy demolition period and limited space caused the major barriers for them. Therefore, some recommendations are suggested: (i) proposing a higher landfill charging scheme; (ii) setting up a centralized centre for recycling the materials; (iii) examining the Hong Kong government should be supported in the provision of land for recycling plants; (iv) implementing innovative demolition methods; (v) allowing some locations in town for residents' easy access to drop-off recyclable materials; (vi) allowing flexible demolition periods; (vii) setting up recycling plant in town or in the form of mobile installations; (viii) reusing the reusable components as donations to the charity organization; (ix) providing higher flexibility in receiving concrete waste in Tuen Mun Area 38 recycling plant; and (x) balancing the supply and demand of recycled materials through legislations or incentive schemes.

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Building and Environment

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41

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12

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© 2006 Elsevier. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.

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Environmental Science and Management

Architecture

Building

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