[Principles of "ecological living water" to purify sewage and its application in black and smelly water treatment of Yangzhou].

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.