PCB plating in the process of production and washing plant generate very much waste water. We are creating a sludge landfill in the drug treated, and outsourcing the process, but It takes many efforts relating to the processing of plating waste water are like excessive chemical treatment, rinse wat...
PCB plating in the process of production and washing plant generate very much waste water. We are creating a sludge landfill in the drug treated, and outsourcing the process, but It takes many efforts relating to the processing of plating waste water are like excessive chemical treatment, rinse water over-use or securing landfill, etc. In this study, Cu in the waste water generated in the electronic component A's PCB manufacturing process, a plating process was performed to further increase the purity through the secondary electrolytic.
Current waste water from A company are acid effluent and Alkaline effluent. As a result of analysis, It contains about 7,000ppm in Acid effluent, 5,000ppm in Alkaline effluent. The amounts of effluent varies over the Factory operation. But, A company was used to discharge after excessive chemical treatment. This makes excessive chemical treatment and sludge a big Environmental problem.
Pilot plants recovered the Cu after making all the results of Cu Test drive the primary acid waste in just about 3 days upon electrolytic. Cathode necessary research when electrolytic, a large electrolytic area than a regular plate is designed larger than traditional Cathode Cu absorption and more available, there was little material is filled in by the corrosion of titanium springs.
After Cu waste water is stored, adapts electrolytic recovery technology, while the forced circulation pump Flow between the way it draw through the electrolyzer. Thus, the residence time is determined, the waste water which cycle is over move to reservoir again and forced circulation continues until the end of the electrolysis.
In the second electrolytic, after the electrolytic of primary, Soak the Cathode to the second electrolytic bath, remove the Cathode to anode, Cathode side is equipped with a copper, is passed through the electric. Here are delivered to the two higher than when the purity of the first electrolytic. A through the device operating electrolytic live, waste water treatment costs and reduced commission, and it was confirmed that the quality of the treated water analysis results within the emission standards.
Therefore, by recycling the waste water treatment in oil was buried or consignment metal waste water treatment load reduction and environmental protection, and it is determined to be possible to increase the recycling of materials. In addition, we expect to enhance the added value by reusing valuable metals recovered most of the major precious metals that occur in the plating process. Recycling and recovery of Cu plating waste water coming PCB manufacturer A in living in this study, and is expected to contribute to domestic resources to secure valuable metals.
PCB plating in the process of production and washing plant generate very much waste water. We are creating a sludge landfill in the drug treated, and outsourcing the process, but It takes many efforts relating to the processing of plating waste water are like excessive chemical treatment, rinse water over-use or securing landfill, etc. In this study, Cu in the waste water generated in the electronic component A's PCB manufacturing process, a plating process was performed to further increase the purity through the secondary electrolytic.
Current waste water from A company are acid effluent and Alkaline effluent. As a result of analysis, It contains about 7,000ppm in Acid effluent, 5,000ppm in Alkaline effluent. The amounts of effluent varies over the Factory operation. But, A company was used to discharge after excessive chemical treatment. This makes excessive chemical treatment and sludge a big Environmental problem.
Pilot plants recovered the Cu after making all the results of Cu Test drive the primary acid waste in just about 3 days upon electrolytic. Cathode necessary research when electrolytic, a large electrolytic area than a regular plate is designed larger than traditional Cathode Cu absorption and more available, there was little material is filled in by the corrosion of titanium springs.
After Cu waste water is stored, adapts electrolytic recovery technology, while the forced circulation pump Flow between the way it draw through the electrolyzer. Thus, the residence time is determined, the waste water which cycle is over move to reservoir again and forced circulation continues until the end of the electrolysis.
In the second electrolytic, after the electrolytic of primary, Soak the Cathode to the second electrolytic bath, remove the Cathode to anode, Cathode side is equipped with a copper, is passed through the electric. Here are delivered to the two higher than when the purity of the first electrolytic. A through the device operating electrolytic live, waste water treatment costs and reduced commission, and it was confirmed that the quality of the treated water analysis results within the emission standards.
Therefore, by recycling the waste water treatment in oil was buried or consignment metal waste water treatment load reduction and environmental protection, and it is determined to be possible to increase the recycling of materials. In addition, we expect to enhance the added value by reusing valuable metals recovered most of the major precious metals that occur in the plating process. Recycling and recovery of Cu plating waste water coming PCB manufacturer A in living in this study, and is expected to contribute to domestic resources to secure valuable metals.
Keyword
#전해 공정
#구리 회수
#PCB
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