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Tài liệu đào tạo Drinking water distribution systems - Assessing and reducing risks

Thảo luận trong 'Các vấn đề về thủy lực & ứng dụng' bắt đầu bởi hyundai, 28/7/11.

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    Tham gia ngày:
    7/10/09
    Số km:
    5,183
    Được đổ xăng:
    2,435
    Mã lực:
    2,130
    Xăng dự trữ:
    12,664 lít xăng

    Publisher : The National Academies Press
    Date : 2006
    Pages : 404
    Format : PDF
    ISBN-10 : 0309103061

    The distribution system is a critical component of every drinking water utility. Its primary function is to provide the required water quantity and quality at a suitable pressure, and failure to do so is a serious system deficiency. Water quality may degrade during distribution because of the way water is treated or not treated before it is distributed, chemical and biological reactions that take place in the water during distribution, reactions between the water anddistribution system materials, and contamination from external sources that occurs because of main breaks, leaks coupled with hydraulic transients, and improperly maintained storage facilities, among other things. Furthermore, special problems are posed by the utility’s need to maintain suitable water quality at the consumers tap, and the quality changes that occur in consumers’ plumbing, which is not owned or controlled by the utility.
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