Method for treating organic nitrogen in sewage
A treatment method, organic nitrogen technology, applied in biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of easy blockage of membrane pores, bacteria breeding, and limited promotion. Achieve the effects of reducing eutrophication, strong impact load resistance, and simple and intensive process
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[0026] The invention provides a sewage advanced treatment method for removing organic nitrogen in the secondary effluent of urban sewage treatment plants by combining biodegradation and physical filtration, that is, SBBR+coagulation-microfiltration process, to remove most of the organic nitrogen (including easy biodegradable and refractory), while further reducing the content of inorganic nitrogen such as ammonia nitrogen and nitrate nitrogen in the effluent.
[0027] The sewage referred to in the present invention is from the secondary effluent of urban sewage treatment plants, COD Cr Content below 100mg / L, NH 3 -N content is below 15mg / L.
[0028] The purpose of the present invention can be achieved through the following measures:
[0029] The secondary effluent of urban sewage treatment plants directly enters the SBBR reactor, and adopts the method of intermittent aeration to form an anaerobic, anoxic, and aerobic environment inside and outside the activated sludge flocs ...
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