Device and method for advancement treatment of printing and dyeing wastewater
A water treatment device and advanced treatment technology, applied in the textile industry wastewater treatment, water/sewage multi-stage treatment, adsorbed water/sewage treatment, etc. and other problems, to achieve the effect of simple operation, improved removal rate, convenient operation and maintenance
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[0038] Such as figure 1 As shown, a printing and dyeing wastewater advanced treatment device of the present invention includes a biological activated carbon water treatment device 41, and the biological activated carbon water treatment device 41 is connected to a biochemical sedimentation tank 42, and the biochemical sedimentation tank 42 is connected to a reverse mineral sand The filter tank 43 is connected, and the reverse mineral sand filter tank 43 is connected with a clear water tank 44.
[0039] Such as figure 2 As shown, further, the biological activated carbon water treatment device 41 includes the first treatment tank 1, and also includes at least one biochemical aeration unit, and the biochemical aeration unit includes a negative pressure chamber 13, an air-water diffusion pipe 15 1. A self-suction pipe 14, the air-water diffusion pipe 15 is a straight pipe with openings at both ends, its pipe body is vertical, its pipe diameter expands from top to bottom, and its ...
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