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                    Analysis of several methods of wastewater treatment in circuit board industry


                    A circuit board may be called a printed circuit board or a printed circuit board. The English name is PCB. PCB wastewater composition is complex, difficult to deal with, how to effectively remove harmful substances, reduce environmental pollution, is a major task facing China's PCB industry.
                    PCB wastewater is a kind of PCB wastewater, which is a kind of wastewater in the printing industry and the circuit board factory. Now, every year in the world of toxic and hazardous chemical waste amounted to 3 million to 4 million tons, of which the ecological harm is great, and the Earth spread most widely of persistent organic pollutants (POPs). In addition, PCB wastewater is divided into: cleaning wastewater, printing ink wastewater, wastewater complexation, concentrated acid waste liquor, concentrated alkali waste liquid. Large amount of water used in the production of printed circuit boards, more types of wastewater pollutants, complex components. According to the characteristics of wastewater from different PCB manufacturers, reasonable classification and collection, treatment of the quality, is the key to ensure the standard of wastewater treatment.
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