System and method for preventing water pollution on basis of different-quality draining and different-quality processing

The invention discloses a system and a method for preventing water pollution on the basis of different-quality draining and different-quality processing. The system for preventing the water pollution comprises a different-quality draining system, a different-quality processing system and a management system; the different-quality draining system is arranged in a water area of an administration region; the different-quality processing system is arranged in a downstream water area of the different-quality draining system; the management system is respectively bidirectionally connected with the different-quality draining system and the different-quality processing system. The system and the method have the advantages that water which does not meet requirements of a management goal in the water area of the administration region can be drained and processed in a different-quality manner; the water quality and the water quantity can be automatically monitored and recognized in real time in an online manner, and the water can be drained and processed in the different-quality manner after automatic diagnosis and voluntary processing are carried out according to water quality and water quantity monitoring and recognizing results; different-quality draining and different-quality processing strategies can be adjusted according to the water quality and water quantity monitoring and recognizing results; the water can automatically be drained and processed in the different-quality manner according to the determined strategies; the system is a controlled, online and real-time intelligent system for preventing the water pollution.