PCB waste water treatment solution strategy-PCB-electronics industry

With the State Environmental Protection intensity of macroeconomic policies and continued to increase environmental protection enterprises and public awareness and demand continues to increase, PCB wastewater treatment process technologies continue to spread and popularity of printed circuit industry, waste water will reach the standard expected soon .

According to CPCA (China Printed Circuit Association) statistics, over the past few years, China has published Board More than 20% annual growth rate, China's PCB production has surpassed Japan to become the world. However, due to the complexity of printed circuit production process, the pollutants contained in wastewater of heavy metals copper, nickel, organic COD, ammonia, cyanide, etc., are also big water, making wastewater treatment requirements are often more complex and general industrial waste water, but also compliance is not easy. Therefore, industrialized areas of environmental protection departments are often limited printed circuit board business of the new plant expansion project or the old plant, printed circuit board waste environmental problems more evident.

With the State Environmental Protection continued to increase the intensity of macroeconomic policy, business and the public demand for environmental protection awareness and continuous improvement of PCB waste treatment technology has been constantly spreading and popularization of printed circuit industry, waste water will reach the standard expected soon .

Abroad PCB Wastewater treatment gap between PCB industry in China form a mass less than 20 years, PCB waste water treatment technology developed with industry, technology is also maturing. PCB over the environmental protection department of the wastewater discharge standards required by enterprises is also inconsistent, a new factory in southern China have a standard implementation of Guangdong Province, Guangdong Province, an old factory and some secondary standards for implementation; East region and some national standards for the implementation of some implementation of the two standards. Different emission standards has also led to uneven treatment process and project configuration.

PCB waste water are complicated, both heavy metals, organic matter and ammonia there is a complex industrial wastewater. PCB waste water treatment is technically still has some difficulties, mainly: copper complex in addition to EDTA (ethylenediaminetetraacetic acid), there are unknown elements, affect the copper compliance; COD value of soluble organic polymer is difficult to direct physical or chemical method to remove; PCB waste classification waste water treatment requirements and reasonable diversion completely, so the drainage management and production level of the workshop.

According to the 2007 CPCA the Chinese PCB industry study tours of inspection of environmental protection management, wastewater treatment very satisfactory results, some manufacturers have poor facilities management, and some management and handling operations are not in place, more turbid water manufacturers. In addition, part of the awareness on environmental issues, manufacturers still remain in dealing with the environmental protection department of the inspection, there is no solution to environmental problems as their duty, which is active in the environmental ideas of difference between the far-reaching effects.

Overall, Europe and the United States PCB business ideas and strong sense of environmental protection, wastewater treatment facilities of its relatively well, in order to ensure compliance at the cost, of course, have their financial strength relationship. For example, on Haiaotesi companies, in addition to advanced wastewater treatment facilities, security, its tons of water treatment costs by up to 30 yuan, and general factory about 3 to 5 yuan / ton. Most manufacturers start from the Wastewater Treatment suppression device configuration, automatic configuration, blindly down wastewater project cost, so that wastewater treatment facilities to run the final results and adversely affect stability. On the other hand, the environmental protection industry disorderly market competition in some areas affected by PCB Wastewater Treatment intervention local government departments, not free to choose wastewater treatment company, has also led to poor treatment results.

2007 CPCA the Chinese PCB inspection also seen the success of environmental protection, treatment efficiency of wastewater treatment facilities are protected, indicating that PCB waste is to governance. We believe, PCB waste water treatment technology is more mature, there are many successful cases. At present most of the manufacturers or by three types of waste segregation and separate treatment. If wastewater treatment process in accordance with the idea of diverting water to do a thorough and careful operation, most of the manufacturers can meet emissions standards.

National leader in meeting the emission standard

PCB waste are complicated, because there are unknown elements involving commercial secrets, making wastewater treatment more difficult.

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