Composition analysis of construction & demolition waste and enhancing waste reduction and recycling in construction industry in Hong Kong

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Composition analysis of construction & demolition waste and enhancing waste reduction and recycling in construction industry in Hong Kong

 

Author: Li, Wing
Title: Composition analysis of construction & demolition waste and enhancing waste reduction and recycling in construction industry in Hong Kong
Degree: M.Sc.
Year: 2002
Subject: Hong Kong Polytechnic University -- Dissertations
Construction industry -- Waste disposal -- China -- Hong Kong
Construction industry -- Waste minimization -- China -- Hong Kong
Department: Multi-disciplinary Studies
Dept. of Management
Pages: v, 83 leaves : ill. (chiefly col.) ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b1643158
URI: http://theses.lib.polyu.edu.hk/handle/200/2017
Abstract: In 2000, Hong Kong generated as much as 37,600 tonnes of construction waste every day. Of which, about 30,200 tonnes of C&D material was transported to the public filling areas (PFA) for reclamation use, while the remaining 7,500 tonnes of C&D waste was disposed of at landfills. In order to maximise the service lives of PFA and landfills and minimise the demand of land for development of new facilities, recycling of construction waste should be promoted as far as practicable to reduce the amount of waste generated. Currently, some of the C&D waste such as metals are being recycled quite successfully, while some of them like plastics are poorly recovered or recycled and inevitably delivered to landfills for disposal. Sorting of recyclable materials at construction site is usually limited by the cost and time constraints and the low environmental awareness of the construction companies and their labours. A composition analysis of C&D waste has been performed at landfills to investigate the amount of recyclable materials that can be diverted from landfills to waste recyclers. Different ways to enhance the recycling of recyclable portion of C&D waste have also been proposed. In order to reduce the amount of C&D waste generated, there is a growing trend for the construction companies to improve their waste management practices at construction sites and adopt new environmentally friendly construction technologies. The government is also implementing different measures at both the policy and working levels to facilitate the C&D waste reduction and recycling for public and private construction projects.

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