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Chinese Journal of Applied Ecology ›› 2020, Vol. 31 ›› Issue (6): 2049-2056.doi: 10.13287/j.1001-9332.202006.035

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Principles of “ecological living water” to purify sewage and its application in black and smelly water treatment of Yangzhou

LI Rong-fu1*, SUN Long-sheng2, KOU Xiang-ming3, LI Zhang-lin4, WANG Shu-guang1   

  1. 1Yangzhou Fisheries Society, Yangzhou 225001, Jiangsu, China;
    2College of Animal Science and Technology, Yangzhou University, Yangzhou 225003, Jiangsu, China;
    3Agricultural Science Institute of Jiangsu Lixiahe District, Yangzhou 225009, China;
    4Yangzhou Water Conservancy Society, Yangzhou 225001, Jiangsu, China
  • Received:2019-10-10 Online:2020-06-15 Published:2020-06-15
  • Contact: * E-mail: lrf62@163.com
  • Supported by:
    This work was supported by Jiangsu Fishery Science and Technology Project (Y2018-11) and Jiangsu Key Research and Development Plan (Social Development) (BE2017688).

Abstract: To explore the fundamental way of black and odorous water treatment, based on the study of the purification function of natural water body and the analysis of root cause and direct cause of black and odorous water body, we elaborated the scientific connotation and ecological function of “ecological living water”, and fully revealed the scientific principle and technical advantages of “ecological living water” for sewage treatment. “Ecological living water” was the original ecological water control in situ. Through the rapid water reaeration, the micro-ecosystem of living water was created. Meanwhile, with the support of micro-speed circulating water, the continuous and efficient purification was realized. The practice of black and odorous water treatment in Yangzhou showed that, 3-5 days after the treatment of “ecological living water”, the black and odorous water was completely eliminated and transformed into “green water”. 15-20 days after the treatment, water quality reached the national surface water class Ⅲ water standard. Therefore, “ecological living water” may be a kind of sustainable water control technology system with investment of less resources and equipment, fast pollution control speed, low operation cost, good water control effect and both symptoms and treatment.