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    Techno-economic and Environmental Implications of the Use of a Closed Loop Water Recycling System in Qatar

    74824.pdf (809.2Kb)
    Access Status
    Open access
    Authors
    Biswas, Wahidul
    Horr, Y.
    Joll, Cynthia
    Rosano, Michele
    Date
    2019
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Biswas, W. and Horr, Y. and Joll, C. and Rosano, M. 2019. Techno-economic and Environmental Implications of the Use of a Closed Loop Water Recycling System in Qatar. Chemical Engineering Transactions. 72: pp. 205-210.
    Source Title
    Chemical Engineering Transactions
    DOI
    10.3303/CET1972035
    ISSN
    1974-9791
    School
    Centre of Excellence in Cleaner Production
    URI
    http://hdl.handle.net/20.500.11937/74539
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents the environmental and economic benefits from the use of potable water from a desalination plant, and treated sewage effluent (TSE) for non-potable reuse, in Lusail, Doha. This newly built city plans to use TSE for a large portion (98 %) of its non-domestic applications instead of discharging TSE to the ocean. It was estimated that about 140,112 m3/d desalinated water will be produced for potable water supply and 93,236 m3/day of TSE will be produced from a sewage treatment plant (STP) for use in district cooling systems and in the irrigation of local landscapes, lawns, and pocket gardens. Less than 2.5 % of water demand for non-domestic applications (i.e. irrigation of lawns for water features) will need to be met by potable water. There are significant sustainability benefits associated with the use of TSE in a water scarce and fast growing region like Qatar. A life cycle assessment analysis has been carried out to determine the greenhouse gas emissions, embodied energy consumption and cost savings associated with the recycling of wastewater in Lusail.

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