Keyword: printed circuit board, PCB industry, PCB enterprise, PCB production
The enterprise must fluctuate in energy conservation and emissions reduction, and clean production
At present, the printed circuit board (PCB) production in the world first, product quality and technical level has also improved. However, to make the PCB industry to achieve sustainable development, the enterprise must fluctuate in energy conservation and emissions reduction, and clean production. Held recently in jiangsu dafeng "environmental protection technical seminar" in 2011, the expert inside course of study from the perspective of technology, standard, etc, the governance of PCB industry "three wastes" advice is given.
Production of environmental protection is imperative
Solid wastes in the process of printed circuit board production, etching waste liquid produced by the profits, should be the wealth of the enterprise.
PCB (CCL) of raw material is copper clad laminates, through chemical, electrochemical, photochemical and mechanical procedure, after 50 just made bespoke printed circuit board, in the process of production to produce large amounts of solid waste, waste liquid and waste water, the solid waste and waste liquid containing a large number of metals and metal ions.
Secretary general of the China printed circuit industry association (CPCA) Wang Longji calculated brushstroke zhang to the reporter, he said, 10000 square meters of printed circuit board production (average calculated at 4 ~ 6 layer), will produce 10.5 tons of solid wastes, the copper content is about 25%; Will produce waste etching solution of 50 tons, of which 12% copper content; 22500 tons of water. In 2010 China's production of printed circuit board for 180 million square meters, the calculated on an area of 200 million square meters (including inventory and scrap), solid scrap copper 52500 tons of copper in the production of regeneration, the copper prices calculated at 65000 yuan per ton, 3.413 billion yuan; Waste etching solution containing copper produced 100000 tons of copper regeneration output, the copper is calculated at 65000 yuan per ton, 6.5 billion yuan; Produce 200 million tons of waste water, waste water per ton governance operating cost (excluding equipment investment cost) calculated at 8 yuan, you may need to 1.6 billion yuan. Earnings should be 3.413 billion + 6.5 billion = 9.913 billion yuan. (now sell income amount and their recycling waste liquid can be the difference between the amount, is the enterprise should gain.)
Wang Longji believes that the solid wastes in the process of producing printed circuit board, etching waste liquid produced by the profits, should be the wealth of the enterprise (including production and environmental management enterprises), but at present most of the solid waste and recycle the waste liquid by the authorities. As a matter of fact, at present our country the acid etching liquid and alkaline etching liquid regeneration recycling equipment and technology, such as jie chi company and JiChi the etching liquid recycling equipment), has obtained a patent for invention and acceptance of environmental protection, can fully meet the demand of PCB enterprise environmental protection.
CPCA, environmental clean club President, vice director of Chen Rongxian tells a reporter, from the perspective of environmental protection, circuit board peripheral supporting enterprises (refers to the enterprises processing waste liquid or solid waste, especially no qualifications of the enterprise) bath of waste pollution concentration is high, the processing difficulty is big, there are many bad companies after bath for recycling waste, pure in order to extract the valuable metals, will for the rest of their useless waste liquid was secretly in waterways, untreated caused great pollution, make the relevant state departments and people think it is the PCB enterprise pollution, damage the image of the PCB industry.
"As the national level association of CPCA should not only become the bridge and the link between government and enterprises, to standardize the behavior of the industry, improve the social responsibility of enterprises, safeguard the interests of the industries and enterprises at the same time, become the interests of the industry representatives. In the" three wastes "unreasonable phenomena in the process of governance, we should think seriously about." Wang Longji said, "at present, CPCA environmental clean club is trying to find a way to make more environmental protection enterprises to participate in the" three wastes "treatment of PCB industry."
The new standard to promote cleaner production
New environmental standards will inevitably promote the generation of new environmental protection technology, is bound to accelerate the upgrading of PCB industry and environmental protection facilities.
At present, the PCB industry has its own standards in terms of clean production. Chen Rongxian said, although the PCB production can bring pollution, but its on the kind of pollutants, pollutant concentration and production process there is much difference with the electroplating industry. "If we perform plating standard, alone is the standard of ammonia nitrogen and total nitrogen, will make a lot of PCB enterprise cannot execute. Fortunately, the PCB industry have their own environmental standards, namely the standard of cleaner production of printed circuit board manufacturing, and the electronics industry pollutant discharge standard electronic components and printed circuit board." Chen Rongxian said.
New environmental standards from the waste gas, waste water and so on has carried on the strict requirements, especially some indicators in the wastewater is now not in the wastewater discharge standard of execution to the attention of the enterprise. Such as COD (chemical oxygen demand), ammonia nitrogen, total nitrogen, etc., on emissions in different areas of the enterprise and the different requirements. Chen Rongxian says, if only to companies processing facilities and technology, now, apparently, could not reach the requirements of the new standard. So the new environmental standards will inevitably promote the generation of new environmental protection technology, PCB industry will accelerate the environmental protection infrastructure upgrades. "Standards and regulations is to living in the development of PCB industry environmental protection agent was introduced, the PCB industry under the environmental protection problem of a dose of medicine. Make the PCB industry under the pressure of the outside world, to complete the governance of environmental protection, to complete the whole industry of self-salvation, change the bad effects of industry on the public, from the standpoint of the sustainable development of PCB industry, I think this should not be a bad thing." Chen Rongxian said.
Environmental protection new technology constantly emerging
Many for PCB enterprises with good, new, superior technology, and the promotion and application of new technologies to provide policy and financial support.
According to the new standard request, PCB now new technologies constantly emerging in the field of environmental protection, can completely solve the technical challenges posed by the new standards, such as by the application of new material of new products the MBR membrane, new technology of wastewater reuse, ammonia nitrogen treatment technology, etc.
Chen Rongxian said the PCB industry development direction in the future environmental protection should be renewable resources, consumption reduction, energy saving, emission reduction, and efficient environmental protection technology, with more and more physical and biological treatment method to replace the traditional chemical treatment technology. So the PCB and the environmental protection enterprise management, be sure to see the situation, the head of the innovation in technology, changing the old ideas, old PCB industry's environmental governance issues mentioned will be a whole new level.
Jiangxi jindal environmental protection research and development center co., LTD., chairman of Liao Zhimin said that water resource shortage and water environment pollution is the two big problems facing the 21st century global resources, serious environmental pollution of heavy metal wastewater, should realize the wastewater reuse. Most of heavy metal waste water of heavy metal ions have a high market value, and belongs to the non-renewable resources, heavy metal recycling development is the trend of The Times. In order to ensure the emissions of heavy metal wastewater and heavy metal resources and efficient recycling, heavy metal wastewater reuse treatment equipment research and development and standardization is of great significance. Environmental protection industry is the industry policy, the government guidance is the premise. He suggested that the industry association and the local government should be more for PCB enterprises provide good, new, superior technology, and the promotion and application of new technologies to provide policy and financial support.
He said, to meet the requirements of PCB industry production of environmental protection, jindal company successfully developed a new technology of recycling of the high efficiency, low consumption of heavy metal wastewater, the main components for high efficient solid-liquid separator - JDL processor. The processed water quality standards, and can realize effective treatment and recycle waste water. Don't join the PAM, solve the problem of RO membrane plugging, truly realize the retrieval and utilization of water resources; Don't add flocculant, coagulant aid, reducing the level of other metal impurities, which can realize efficient recycling heavy metal resources. JDL processor control level is high, replace the traditional sedimentation tank and sludge concentration pool, can greatly reduce cover an area of an area, save construction investment.
Guangzhou the scene as a focus on innovative enterprise of industrial water reduction technology, independently developed a "synergistic reducing" water-saving new technology - WWT (water and reducing wastewater zero emissions technology). The technology has broken the governance at the end of the traditional thinking, will return to the essence of thinking, reducing water on source control, attaches great importance to the efficient use of water, reduce the enterprise due to the unreasonable water high water costs, governance costs, to break the production bottlenecks caused by the water restrictions. At present, mainly through the scene timing quantitative precision guangzhou water supply and change water patterns, achieve effective water and improve product cleanliness, implement vertical water reduction of electroplating production line.
Source: //www.seekic.com
