Method and device for treating high concentration nitrogen waste water by using microorganism
A microbial treatment, high-concentration nitrogen technology, applied in the direction of biological water/sewage treatment, grease/oily substance/suspton removal device, separation method, etc., can solve the problem of poor ammonia nitrogen removal effect, low efficiency, nitrifying bacteria and denitrification Problems such as contradictory bacterial reaction conditions
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[0131] Such as figure 2 As shown, the anaerobic pool 1, the anaerobic pool 2, the aerobic pool 3 and the sedimentation tank 4 constitute four main units in space. The mud return pipeline leads to the anaerobic tank 1 and the facultative tank 2; the anaerobic tank 1 and the facultative tank 2 are respectively provided with independent switches for controlling the sludge return ratio.
[0132] The wastewater entering the system first passes through the air flotation tank for pretreatment to remove oil and suspended solids (and slag). Then the waste water enters the anaerobic pool 1, and the waste water and the anaerobic bacteria mass in the pool undergo biochemical reactions without oxygen supply, degrade some harmful substances in the sewage, and improve the biodegradability of the sewage at the same time, creating conditions for the next stage of treatment. In order to meet the needs of biochemical reactions in anaerobic and anoxic tanks, and provide nutrients and phosphorus...
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