Current Status of Research on Ozone-catalytic Oxidation of Dye Wastewater by Composite Component-loaded Molecular Sieves
At present,the secondary biochemical+coagulation sedimentation process is mainly used for printing and dyeing wastewater in China,so that the effluent COD concentration is in the range of 300～700 mg·L-1,and the removal rate reaches 75%～85%.However,the wastewater treated by this process still has some problems,such as difficult degradation,organic residue,high COD and so on,which cannot meet the water quality requirements of the effluent.Therefore,in order to cope with the increasingly severe water pollution situation,continuously improve the sewage discharge and water demand of printing and dyeing enterprises,advanced treatment of printing and dyeing wastewater should be carry out to realize the utilization of wastewater as resources,which has important practical significance for alleviating the current water pollution and alleviating the contradiction between supply and demand of water resources.
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维普
