Coked and petrochemical wastewater treatment process having deep biochemical treatment and physicochemical treatment
A petrochemical wastewater treatment technology, applied in chemical instruments and methods, flotation water/sewage treatment, water/sludge/sewage treatment, etc. Water quality requirements and other issues, to achieve good shock load resistance, strong shock load resistance, and achieve the effect of unmanned operation
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[0015] exist figure 1 In the process, coking wastewater and petrochemical wastewater are pretreated first, and the pretreated coking wastewater and petrochemical wastewater are then subjected to conventional biochemical treatment. After the tank treatment, the advanced chemical oxidation tank treatment is carried out, and finally the discharge reaches the standard; or the advanced chemical oxidation tank treatment is carried out to improve the biodegradability of the wastewater, and then the aerated biological filter is used for alternate and repeated filtration and backwashing, and finally the discharge meets the standard. .
[0016] exist figure 2 Among them, biological aerated filter (BAF) is a complete system, which consists of BAF tank body, valve, pipeline, water pump, fan, automatic control system, backwash storage tank and backwash waste water tank. The schematic diagram of the BAF processing process is shown in figure 2 . The operation mode is that the two stage...
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