Method for treating micro polluted water by using biological nitrogen removal and physicochemical enhanced phosphorus removal combined process
A combination process and biological denitrification technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of low removal effect of other pollutants and one-time investment in infrastructure construction Larger, increased water ion concentration and other issues, to achieve the effect of convenient management and maintenance, less sludge production, and improved purification efficiency
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[0084] Taking the water of Xiaoli Lake in the central lake of Jiangnan University as the treatment object, a daily treatment capacity of 1200 m has been built 3 The treatment equipment of the river water body is treated by gradually increasing the flow method. The inlet water is lifted by the lifting pump into the biological contact oxidation tank, and the outlet of the lifting pump is designed with a flow meter to control the flow of the pump; the biological contact oxidation tank uses soft fibers as the membrane filler for aeration with a rotary fan; the effluent overflows to the quick filter tank , The backwashing pipeline is designed at the bottom of the fast filter, and it is backwashed regularly to avoid clogging. The effluent of the fast filter tank passes through the deoxidation tank from bottom to top, with the purpose of reducing the DO in the water body and providing favorable conditions for the subsequent denitrification; the facultative tank uses camphor leaf and ce...
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