Source Journal of CSCD
Source Journal for Chinese Scientific and Technical Papers
Core Journal of RCCSE
Included in JST China
Volume 42 Issue 4
Apr.  2024
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ZHANG Zhuowei, XUE Song, WU Yinhu, SUN Bo, GUAN Yuntao, HU Hongying. ANALYSIS OF APPLICATION SITUATIONS AND RISK CONTROL FOR RECLAIMED WATER DISTRIBUTION BY MUNICIPAL HEAT-SUPPLY NETWORKS IN CHINA[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(4): 58-65. doi: 10.13205/j.hjgc.202404007
Citation: ZHANG Zhuowei, XUE Song, WU Yinhu, SUN Bo, GUAN Yuntao, HU Hongying. ANALYSIS OF APPLICATION SITUATIONS AND RISK CONTROL FOR RECLAIMED WATER DISTRIBUTION BY MUNICIPAL HEAT-SUPPLY NETWORKS IN CHINA[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(4): 58-65. doi: 10.13205/j.hjgc.202404007

ANALYSIS OF APPLICATION SITUATIONS AND RISK CONTROL FOR RECLAIMED WATER DISTRIBUTION BY MUNICIPAL HEAT-SUPPLY NETWORKS IN CHINA

doi: 10.13205/j.hjgc.202404007
  • Received Date: 2023-03-24
    Available Online: 2024-06-01
  • To solve the current problem of lagging construction of reclaimed water-supply networks in China, the distribution of reclaimed water using heat-supply networks was proposed. The application situations of reclaimed water distribution through a heat-supply network were analyzed, and the risk types and factors were identified, and then the control methods also were proposed. Chem-corrosion, bio-corrosion, scaling and yellow water were the main risks of the reclaimed water distribution by heat-supply network. Reclaimed water with grade A level could be the preferred water source for the heat-supply replenishment. The risk factors of the reclaimed water distribution by the heat-supply network for industrial reuse mainly included pH, inorganic and organic matters. Besides the above risk factors, nutrients and heavy metals were also included for the landscape environment, municipal and agricultural reuse. The essential control methods of the reclaimed water distribution by the heat-supply network were water softening, de-oxygen, and organic matter removal. In addition, the key control points for each situation were the removal of nutrients and heavy metals, reduction of Larsen index, and proportional switching of water sources. Then the feasibility of above application situations and control methods was analyzed in a case in Taiyuan as an example. It could provide theoretical basis and technical reference for the reclaimed water distribution by the heat-supply network.
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