Method for controlling ultrafiltration element pollution in water treatment
A technology for ultrafiltration filter elements and pollution control, applied in water/sewage treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as ultrafiltration membrane pollution and ultrafiltration filter element pollution, and achieve Large economic benefits, improved cleaning effect, and improved water production
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[0037] The present invention will be further described below in conjunction with specific embodiments.
[0038] The ultrafiltration filter element needs to be cleaned when one of the following situations occurs:
[0039] 1. Under normal pressure, the product water flow rate drops to 15-20% of the normal value;
[0040] 2. With normal production water flow, the feed water pressure has increased by 10-15%;
[0041] 3. The water quality of the product drops, and the bacteria increase by 10%;
[0042] 4. The use pressure has increased by 10-15%.
[0043] A pollution control method for ultrafiltration filter element in water treatment, including pretreatment before water filtration and membrane washing after pollution; figure 2 As shown, the pretreatment is to add a flocculation device before the mechanical filter, and the flocculant is used in the flocculation device to process the raw water; the membrane washing is to use a cleaning water tank arranged in parallel with the reverse osmosis...
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