Impact of climate change on water resources and demands in Hong Kong

Tang, Kevin (2014) Impact of climate change on water resources and demands in Hong Kong. MSc dissertation, University of Portsmouth.

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    Owing to climate change and urbanisation, water is an increasingly scarce resource for much of the world’s population. Without any exceptions, Hong Kong does not have adequate fresh water resources to meet the demand of its population, so the government has been purchasing over 80 percent of freshwater from the mainland China since 1960. To reduce the pressure on fresh water demand, using seawater for toilet flushing has been employed since 1957. Alternative water source such as reuse of recycled water has also been employed since 2006. In order to balance water demand and supply, Total Water Management (TWM) Strategy is implemented by the Water Supplies Department (WSD) in 2008.
    This study attempts to investigate the public perception and views on recycled water use for non-potable purpose after commencement, and explore any further development. Based on literature review, case studies, opinion survey and interviews with professionals, the significant factors such as health and safety, public perception and acceptance, water quality and standards have been identified. The findings of water supply and recycled water use in Hong Kong are also compared with other countries. In opinion survey, there are 102 respondents regarding their perception, attitude and degrees of acceptance to recycled water use. Overall survey results show that the respondents have been increasingly accepting recycled water use over the past few years since it was commenced.
    In conclusion, climate change may lead to adverse impacts on water resources. Besides, strategy formulation and suggesting new water sources are important to be proposed. Water Supply Management is used to increase the amount of water available for consumers while Water Demand Management is used to achieve efficient water use. For new water sources suggestion, potential developments on seawater desalination and reuse of recycled water in Hong Kong have been identified and are recommended.

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Technology > School of Civil Engineering and Surveying
    Depositing User: Beth Atkins
    Date Deposited: 16 Jan 2015 15:05
    Last Modified: 28 Jan 2015 12:47

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