Combined enhanced treatment process for micro-pollution high-ammonia nitrogen raw water
A high-ammonia-nitrogen raw water, enhanced treatment technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of high raw water turbidity, low water temperature, etc., to ensure that the effluent Water quality, full utilization, and the effect of optimizing the process
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[0010] The present invention will be further described below in conjunction with the accompanying drawings.
[0011] The present invention is a combined enhanced treatment process for slightly polluted high-ammonia nitrogen raw water, which is characterized in that when the raw water ammonia nitrogen exceeds 3 mg / l under normal conditions, the treatment process includes: the raw water 1 first passes through the flocculation advection sedimentation tank 2 or the high-efficiency sedimentation tank 3 Precipitate, and then use the biological contact oxidation tank 4 for biological pretreatment, and the effluent enters the homogeneous filter material air-water backwash sand filter 5 or sequence batch backwash sand filter 6 for filtration, and then sends it to the ozone contact tank 8 for oxidation and enters the active The carbon sand filter tank 9 is filtered, and the outlet water is sent to the water distribution pipe network 12 by the water delivery pump room 11 after being regul...
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