A project example of wastewater treatment in an electronic information industrial park
According to the characteristics of the wastewater discharged from an electronic information in-dustrial park such as:large difference in water quality,complex composition,and so on,a combined process of neutralization,coagulation sedimentation,chemical oxidation and biochemical treatment,was adopted for its treatment.The effluent water quality met the indirect discharge standard specified in table 1 of GB 39731-2020 Discharge standard of water pollutants for electronic industry,the grade B standard specified in table 1 of GB/T 31962-2015 Wastewater quality standards for discharge to municipal sewers,and the take-over standard of the downstream sewage treatment plant.The process flow,main design parameters,investment,operation cost and ac-tual operation of the project were introduced.
printed-circuit board wastewaterelectroplating wastewaterseparate collectionseparate treat-ment according to the qualityheavy metalspretreatmentqualified emission
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