ANALYSIS ON NON-POINT SOURCE POLLUTION IN SUZHOU CREEK WITH CONSIDERATION OF CONTROLLING

After the first sewageblocking project was finished and ran, nonpoint source pollution in Suzhou creek is more serious. Therefore, study on the type, characteristics and polluting process of nonpoint source pollution in Suzhou creek and drawing up strategies has gradually become a main aspect to solve the pollution problem of Suzhou creek. The main types of nonpoint source pollution in Suzhou creek are: agricultural nonpoint pollution, excretion of animal husbandry, surface runoff in the town and rural areas, second pollution from river sediment, pollution caused by shipping and dock working, etc.It is pointed that nonpoint source pollution in suburban Suzhou creek is serious and the nonpoint source pollution load in the affluent is high. The corresponding strategies have been proposed.