Sewage and rainwater combined drainage system and control method
A technology of drainage system and confluence system, which is applied in the direction of waterway system, sewer system, chemical instruments and methods, etc. It can solve the problems of low interception efficiency, extensive control, mixed connection of pipelines, etc., and achieve simple system structure, convenient construction and high efficiency The effect of treatment
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[0069] Example 1
[0070] Such as figure 1 The combined drainage system shown to control sewage and rainwater in urban villages includes urban village A. In urban village A, there is a combined main pipe A-1; municipal roads are equipped with sewage main pipes B-1 and rainwater main pipes B- 2; The end of the rainwater main pipe B-2 is connected to the natural water body 1, and the end of the sewage main pipe B-1 is connected to the sewage treatment plant 2; the confluence main pipe A-1 is connected to the water inlet end of the diversion well 3, The first water outlet and the second water outlet are respectively connected with the sewage main pipe B-1 and the rainwater main pipe B-2; a downward weir gate 4 is provided in front of the first water outlet in the diversion well 3, and in front of the second water outlet Set the bottom opening gate 5.
[0071] A biological filter 6 is installed on the drainage pipe of the sewage treatment plant 2.
[0072] A plurality of combinations ...
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[0074] Example 2
[0075] The method of using the system of Example 1 to treat sewage and rainwater from urban villages is:
[0076] In a sunny day, the control unit controls the lower opening weir gate 4 to open according to the received signal, the lower opening gate 5 to close, and the diversion well 3 diverts the sewage entering the confluence main pipe A-1 to the sewage main pipe B-1 and enters the sewage treatment plant 2. deal with;
[0077] When it rains, the control unit controls the lower opening weir gate 4 to open according to the received signal, the lower opening gate 5 to close, and the diversion well 3 diverts the initial rainwater and sewage to the sewage main pipe B-1 and enters the sewage treatment plant 2 for treatment; When the sewage and initial rainwater to the sewage treatment plant 2 exceed the processing capacity of the sewage treatment plant 2, the control unit controls the lower-opening weir gate 4 to close and the lower-opening gate 5 to open according t...
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