Novel combined process for treating coking wastewater
A coking wastewater and combined process technology, applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc.
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[0027] The present invention will be further described below in conjunction with accompanying drawing.
[0028] refer to figure 1 , a specific technical scheme for treating coking wastewater with a new combined process is:
[0029] A new combined process is used to treat coking wastewater. The whole process flow is divided into three routes, water treatment line, mud oil treatment line and pharmaceutical line. The water treatment line is divided into a first-level pretreatment section, a second-level biochemical treatment section and a third-level advanced treatment section:
[0030] (1) Primary pretreatment section: The pretreatment section mainly removes oil, suspended solids, sulfide and part of CODcr in the wastewater. The process flow of the processing section is described as follows:
[0031] The total influent water flows into the adjustment tank after oil separation treatment in the grease trap, and the water quality and quantity are adjusted. The sewage in the adj...
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