A comparative study of the different biological methods for treatment of food waste in Hong Kong

Pao Yue-kong Library Electronic Theses Database

A comparative study of the different biological methods for treatment of food waste in Hong Kong

 

Author: Liu, Meng
Title: A comparative study of the different biological methods for treatment of food waste in Hong Kong
Degree: M.Sc.
Year: 2012
Subject: Food industry and trade -- Waste disposal -- China -- Hong Kong.
Refuse and refuse disposal -- China -- Hong Kong.
Recycling (Waste, etc.) -- China -- Hong Kong.
Hong Kong Polytechnic University -- Dissertations
Department: Dept. of Civil and Structural Engineering
Pages: vi, 82 leaves : ill. (some col.) ; 30 cm.
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b2551500
URI: http://theses.lib.polyu.edu.hk/handle/200/6851
Abstract: Food waste has become a key environmental priority in Hong Kong. The daily amount ofmunicipal solid waste from industrial, commercial and domestic sources disposed at landfills is 9114 tons in Hong Kong in 2010. 3237 tons of it is food waste, which accounts for the largest proportion. Nearly all the food waste was disposed to landfills directly without any recycling or recovery after generation. Three existing strategic landfills will be filled in a very short time, so it's urgent for us to take some action to relieve the burden to landfills and conduct suitable treatment to food waste. Hong Kong lacks experience in treating food waste. Some food waste collection and treatment of other areas was overviewed through literature and site visit. The site visit was conducted in Beijing. Similarity between Beijing and Hong Kong is that they both haven't been focused on food waste biological treatment until recent years. Beijing government has paid lots of efforts to solve the food waste problem. But there are many differences between Beijing and Hong Kong, so the Beijing mode may not be so suitable for Hong Kong to follow. Through literature review and information gathering, some common biological food waste treatment was introduced, compared and listed of their advantages and disadvantages. The purpose is finding out the most suitable biological food waste treatment method for Hong Kong. Through the website and government data, overview of food waste situation in Hong Kong was investigated. Hong Kong government has conducted a pilot composting plant and a housing estates' project. Through site visit, some problems were found out. Electric composters were compared, too. The standard was suggested to evaluate their function. Through above information, some conclusions were made. And according to all these, suggestions were proposed for a better prospect of food waste biological treatment in Hong Kong.

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