Short-flow water purification process and device using immersed ultra-filtration membrane as core
An ultrafiltration membrane and immersion technology, which is applied in the field of short-flow water purification processes and devices with immersion ultrafiltration membranes as the core, can solve the problems of water source pollution, reduce the content of organic matter in effluent, etc., so as to solve water source pollution and ensure water supply. Safe, simple process effect
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[0022] In the present invention, the short-process ultraviolet disinfection and oxidation raw water 11 with the submerged ultrafiltration membrane as the core enters from the bottom 13 of the mixing tank under pressurized conditions, and on the water inlet pipeline, a coagulant is added into the pipeline 12 through the dosing pump 7 . Stir with mixing agitator in the mixing tank 1 pool, the agitator rotating speed is 200 rev / min, and the average water retention time is 60 seconds, and the bottom of mixing tank 1 is provided with blowdown pipeline 14 simultaneously, regularly blowdown.
[0023] The outlet water from the mixing tank 1 is gravity flow, and flows into the flocculation tank 2 through the water inlet pipe 21 . The flocculation tank 2 is stirred with an agitator, the agitator rotating speed is 40 rpm, and the average water retention time is 10 minutes. The bottom of the flocculation tank 2 is provided with a sewage pipe 22 for regular sewage discharge.
[0024] The ...
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