Sewage treatment method for bottom aeration oxidation ditch in cold region
A sewage treatment system and oxidation ditch technology, which is applied in the direction of aerobic and anaerobic process treatment, can solve the problems of affecting the sewage treatment effect, excessive oxygenation, and lower water temperature, so as to improve the efficiency of sewage treatment, strengthen the comprehensive performance, and prevent The effect of water temperature reduction
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[0011] 1. In order to ensure a certain flow rate of the water in the bottom oxidation ditch, when installing an underwater impeller propulsion device and a microporous aeration plate in the bottom oxidation ditch, the power should be determined according to the resistance of the water flow in the ditch. Excessive power will increase operating power consumption Otherwise, it will not have the effect of advancing the water flow, and attention should be paid to match the bottom microporous aeration plate, otherwise it will affect the water flow advancement and aeration effect in the oxidation ditch during the start-up period.
[0012] 2. The position and height of the reasonable underwater impeller propulsion device of the bottom aeration oxidation ditch system should be determined in combination with the bottom oxidation ditch inlet water flow rate, the return sludge flow rate, and the aeration effect of the bottom microporous aeration system.
[0013] 3. Appropriately install an unde...
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