Advanced treatment and reuse integrated equipment for textile dyeing and finishing wastewater

Abstract

The invention discloses advanced treatment and reuse integrated equipment for textile dyeing and finishing wastewater. The equipment comprises an aerated biofiltration cavity (3), an air floatation cavity (11), an ozone reaction cavity (36), a middle water tank (34), a dissolved air chamber (30), an activated carbon cavity (23), a filtration cavity (25) and an ozone generator (27) which are arranged in a box body in parallel in sequence; the aerated biofiltration cavity (3) and the air floatation cavity (11) are connected by a pipeline; the air floatation cavity (11) and the ozone reaction cavity (36) are connected by a pipeline; the ozone reaction cavity (36) and the middle water tank (34) are connected by a pipeline; the middle water tank (34) and the dissolved air chamber (30) are connected with the filtration cavity (25) and the ozone generator (27) by pipelines; the air floatation cavity (11) and the dissolved air chamber (30) are connected by a pipeline; and the activated carbon cavity (23) and the filtration cavity (25) are connected by a pipeline. The equipment has ingenious design and compact and reasonable internal layout, occupation area is reduced and the manufacture and maintenance costs are reduced.

Description

technical field [0001] The invention relates to an integrated equipment for advanced treatment and reuse of textile dyeing and finishing wastewater, in particular to an integrated equipment for advanced treatment of textile dyeing and finishing wastewater. Background technique [0002] The current printing and dyeing wastewater treatment process is mainly through the process of adsorption, suspension, filtration, coagulation, etc., which has the advantages of simple equipment, easy operation and mature process, but this kind of treatment method usually transfers organic matter from liquid phase to solid phase or gas phase. , not only did not completely eliminate organic pollutants, but also consumed a large amount of chemical agents, and caused waste accumulation and secondary pollution; biological methods can only remove BOD in printing and dyeing wastewater, but have no effect on the removal of COD, toxic and refractory substances and chroma It is not obvious that a single...

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Problems solved by technology

[0002] The current printing and dyeing wastewater treatment process is mainly through the process of adsorption, suspension, filtration, coagulation, etc., which has the advantages of simple equipment, easy operation and mature process, but this kind of treatment method usually transfers organic matter from liquid phase to solid phase or gas phase. , not only did not completely eliminate organic pollutants, but also consumed a large amount of chemical agents, and caused waste accumulation and secondary pollution; biological methods can only remove BOD in printing and dyeing wastewater, but have no effect on the removal of COD, toxic and refractory substances and chroma Not obvious, a single treatment method can no longer meet the current printing and dyeing wastewater treatment requirements

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