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    4 New Standards For Water Pollutants Discharge In Textile Industry

    2012/12/10 10:06:00 28

    Environmental Protection DepartmentTextile IndustryTextile IndustryWater PollutantsPollutant Discharge Standards

    < p > the Ministry of environmental protection and the State Administration of quality supervision, inspection and Quarantine jointly issued the 4 discharge standards of water pollutants in textile dyeing and finishing industry, discharge standard for water pollutants in filature industry, discharge standard for water pollutants in wool textile industry, and discharge standard for water pollutants in linen textile industry, which together constitute a series of standards for water pollutants discharge in textile industry, and the new standard will be implemented from January 1, 2013.

    < /p >


    < p > the responsible person of the science and Technology Standards Department of the Ministry of Environmental Protection said that the implementation of the new standard will raise the environmental threshold for entry of < a href= "http://www.91se91.com/news/index_c.asp" > textile > /a > industry, which is conducive to reducing the discharge of water pollutants and promoting the sustainable and healthy development of the textile industry.

    "The implementation of the 4 standards will effectively promote the emission reduction of pollutants in the textile industry.

    After the implementation of the second phase emission limits, the emissions of pollutants will be greatly reduced. The chemical oxygen demand and ammonia nitrogen emissions are expected to reach 68% and 70% respectively compared with 2010, with significant environmental benefits.

    < /p >


    < p > strong > pollution is still a big headache. < /strong > /p >


    < p > < strong > emissions ranked fourth in the industrial sector < /strong > < /p >


    According to the person in charge, China is the world's largest textile production and processing base. At present, the main products of China's cotton yarn, cotton, woolen, silk, chemical fiber products and < a href= "http://www.91se91.com" > clothing > /a > are the first in the world, and are the major textile producing and processing powers.

    In 2011, the total industrial output value of textile enterprises above designated size was 33491 billion yuan, accounting for 3.9% of the total industrial output value of the whole country.

    However, at present, textile processing in China is still dominated by medium and low grade products, and the added value of products is relatively low, while the enterprises are mainly small and medium scale, and the production technology level and technological innovation ability need to be further improved.

    < /p >


    < p > in recent years, due to the development of new products, new dyestuffs and new processes, the quality of pollutants in the textile industry wastewater has also been greatly improved in terms of quality, production efficiency and water saving efficiency. Environmental protection issues have become increasingly prominent.

    According to statistics, in 2010, the COD and NH3-N emissions in the textile industry were 301 thousand tons and 17 thousand tons respectively, accounting for 8.3% and 7.1% of the total industrial emissions respectively, ranking fourth.

    < /p >


    < p > with the acceleration of building a resource-saving and environment-friendly society, the textile industry has put forward higher requirements for energy conservation, emission reduction, elimination of backward production capacity and reduction of environmental impact.

    In order to effectively control the discharge of pollutants in textile industry, in the national environmental protection plan of 12th Five-Year, it is pointed out that we should increase the elimination of backward production capacity in printing and dyeing industries, improve the pollutant discharge standards of industries, promote the control of total chemical oxygen demand and ammonia nitrogen emissions, and reduce the planning target of less than 10% in 2010.

    At the same time, the new "textile industry" 12th Five-Year "development plan", "printing and dyeing industry" 12th Five-Year "development plan", "printing and dyeing industry access conditions" and other industry planning and policy also put forward specific requirements for the environmental protection of the textile industry.

    < /p >


    < p > the Ministry of environmental protection and the State Administration of quality supervision, inspection and Quarantine jointly issued the 4 emission standards of water pollutants in textile dyeing and finishing industry, namely, a href= "http://www.91se91.com/news/index_q.asp" > emission standard < /a >, "discharge standard for water pollutants in filature industry", "discharge standard for water pollutants in wool textile industry" and "discharge standard for water pollutants in linen textile industry", which together constitute a series of standards for water pollutants discharge in textile industry, and the new standard will be implemented from January 1, 2013.

    < /p >


    < p > the responsible person of the science and Technology Standards Department of the Ministry of Environmental Protection said that the implementation of the new standard will improve the entry threshold for environmental protection in the textile industry, help to reduce the discharge of water pollutants and promote the sustainable and healthy development of the textile industry.

    "The implementation of the 4 standards will effectively promote the emission reduction of pollutants in the textile industry.

    After the implementation of the second phase emission limits, the emissions of pollutants will be greatly reduced. The chemical oxygen demand and ammonia nitrogen emissions are expected to reach 68% and 70% respectively compared with 2010, with significant environmental benefits.

    {page_break} < /p >


    < p > < strong > What are the new requirements of the new standard? < /strong > < /p >


    < p > < strong > forming the whole process of environmental control of the industry, tightening the emission limit < /strong > /p >


    < p > "in order to better adapt to the new requirements of environmental protection in 12th Five-Year, we should further intensify efforts to prevent and control pollution in the textile industry. On the basis of summing up practical experience, it is necessary to revise the discharge standard for pollutants in textile dyeing and finishing industry (GB4287-1992).

    "The person in charge said.

    < /p >


    < p > he told reporters that in the original standard system, in addition to the textile dyeing and finishing industry to implement a separate industrial pollutant discharge standards, silk reeling, wool spinning and linen spinning were implemented.

    In the "comprehensive wastewater discharge standard", only two indicators of COD and BOD5 have separate provisions for wool washing wastewater and ramie degumming wastewater, and the remaining indicators perform a uniform discharge limit, which, to a certain extent, has not fully identified the characteristic pollutants in the industry, and the pertinence of emission control is not strong enough, and the difference is difficult to reflect.

    < /p >


    < < p > the newly issued 4 standards have comprehensively covered the process of natural fiber textile production and processing in our country, forming the whole process environmental control of the industry. The textile dyeing and finishing standard mainly controls the discharge of water pollutants from cotton pretreatment and cotton, linen, wool, silk and chemical fiber dyeing and finishing process. The silk reeling standard, wool spinning standard and hemp spinning standard mainly control the process of cocoon processing, the process of silk reeling, the process of wool washing and the discharge of water pollutants from the process of hemp degumming.

    "System setup is more clear and perfect, and it is more targeted for pollution prevention and supervision and management in the industry."

    < /p >


    < p > in the emission control requirements, the new series of standards have also raised the overall requirements and strengthened environmental risk prevention.

    Among them, the newly revised discharge standard of pollutants for textile dyeing and finishing industry has tightened the emission limits of chemical oxygen demand, five day biochemical oxygen demand, suspended solids and ammonia nitrogen to a greater extent than the original standard. At the same time, more stringent water pollution special emission limits have been formulated for environmentally sensitive areas, and indirect emission limits have been set up to strengthen supervision and management of wastewater discharged from public sewage treatment systems.

    < /p >


    < p > for the production of pollutants in textile dyeing and finishing industry in printing and dyeing, bleaching and other processes, the new standard retained the original standard of sulfide, aniline, six valence chromium, chlorine dioxide and other characteristics, and further tightened the emission limits.

    At the same time, Absorbable Organic Halogen (AOX) index is added to strengthen the control of toxic and harmful pollutants and prevent environmental risks.

    In addition, in order to strengthen the control of eutrophication, new nitrogen and phosphorus indicators are added to meet the needs of environmental management.

    < /p >


    < p > the newly formulated 3 standards for silk reeling, wool spinning and hemp spinning industry have identified characteristic pollutants according to the characteristics of production and processing of all kinds of fibers, and improved the discharge control requirements of water pollutants to varying degrees.

    < /p >


    < p > the official told reporters that in the new standard, the setting of indicators is more scientific and reasonable, which is conducive to improving the level of pollution prevention and control technology.

    In the 4 standards, the standard displacement of unit product is set. The setting of this index can prevent dilution discharge on the one hand, and on the other hand, it can effectively promote enterprises to save water and improve the level of cleaner production.

    < /p >


    < p > it is worth noting that in the "water pollutants discharge standard for textile dyeing and finishing industry" (GB4287-1992), the maximum allowable displacement is expressed by processing the amount of water discharged per 100 meter cloth, which limits the execution of products with different width and thickness, and the new revised standard is expressed by tonnage product displacement.

    < /p >

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