Ministry of environmental protection: to tighten the anti pollution standard of textile dyeing and finishing industry

The relevant person in charge of the Ministry of environmental protection recently disclosed that the opinions of relevant departments, industry associations and enterprises are being solicited on the “feasible technical guide for pollution prevention and control of textile dyeing and finishing industry” (Draft for comments). According to the requirements of this technical guide, the standards for pollution prevention and control of textile dyeing and finishing industry will be tightened

China’s textile industry has a complete industrial chain and a wide range of types. 1t is China’s dominant pillar industry, an important livelihood industry and an industry with obvious international competitive advantages, and plays an important role in the development of the national economy

the data show that the output of cotton yarn, cotton cloth, woolen cloth, silk, chemical fiber and clothing in China ranks first in the world. 1n 2010, China’s fiber processing capacity reached 41.3 million tons, accounting for 57% of the world’s output and 70% of domestic demand

however, textile dyeing and finishing wastewater is one of the key pollution sources in China’s industrial system and the focus of environmental protection work in textile industry due to its large amount, serious pollution and difficult treatment< According to the introduction of the science and Technology Standards Department of the Ministry of environmental protection, in 2010, China's textile industrial wastewater discharge accounted for 11.6% of the total industrial wastewater discharge, and the chemical oxygen demand discharge accounted for 10.2% of the total discharge, ranking third in the industry< According to the introduction of the Chinese Academy of Environmental Sciences, dyeing and finishing is a key industry in the textile industry chain, which connects the former spinning and weaving, and improves the grade and added value of the latter clothing and household textiles. 1t is one of the links with the highest technology content in the textile industry chain, but it is also the link with the heaviest pollution. 1ts wastewater discharge accounts for 80% of the total emission of the textile industry, The water quality is characterized by high CODcr concentration, low B / C ratio, high pH and high chroma. According to the above technical guidelines, China's textile industry is a fully competitive industry dominated by small and medium-sized enterprises, with 0.4% of Enterprises above Designated Size, 99.6% of small and medium-sized enterprises and 95% of non-public enterprises. Textile dyeing and finishing enterprises are mainly concentrated in the eastern coastal water rich and economically developed areas, the Yangtze River, Yellow River, Pearl River, Minjiang River and the lower reaches of Huaihe River Basin; There is also a certain distribution in the Haihe River Basin in Northeast China. 1n terms of provinces, Zhejiang, Jiangsu, Guangdong, Shandong and Fujian account for more than 92% of China's dyeing and finishing fabric output according to the reporter, due to the relatively developed economy in these areas, their requirements for environmental protection are constantly improving, and some enterprises in these areas are gradually transferred to the less developed areas in the central and western regions under the pressure of environmental protection but with the westward movement of enterprises, pollution is also spreading. According to the introduction of the Chinese Academy of Environmental Sciences, China’s textile dyeing and finishing industry accounts for 57% of the world’s output in terms of technology and equipment, but its products are mainly medium and low-end products. Except for a few advanced enterprises which use world-class advanced equipment, the overall level of production technology and equipment is not high, the proportion of digital and automatic management is very low, and a small number of enterprises realize three-level measurement, 50% of enterprises achieve secondary measurement, while small enterprises only achieve the measurement level of total energy consumption, water consumption and material consumption of the whole plant according to the compilation instructions, the printing and dyeing industry is too densely distributed in the eastern area where environmental capacity is lacking. Compared with foreign advanced countries, China’s energy consumption is 3 ~ 5 times, water consumption is 2 times, and the consumption of dyes and chemicals is 1.2 times< The reporter learned from the Ministry of environmental protection that the discharge standard of water pollutants for textile dyeing and finishing industry gb4287-2012 was issued on October 19, 2012 and implemented on January 1, 2013. According to the needs of the implementation of the national environmental protection plan, environmental protection management and law enforcement, this revision has adjusted the pollutant emission control projects and raised the pollutant emission control requirements. 1n order to promote the coordinated development of regional economy and environment, promote the adjustment of economic structure and the transformation of economic growth mode, and guide the development direction of textile dyeing and finishing production process and pollution control technology, The standard specifies the special discharge limits of water pollutants according to the reporter’s understanding, in recent years, according to their own characteristics, various localities have formulated local standards and corresponding policies that are stricter than the national requirements. For example, Jiangsu Province issued the “discharge standard of water pollutants for textile dyeing and finishing industry” db32 / 670-2004 on June 1, 2004, which is applicable to textile dyeing and finishing enterprises and centralized industrial wastewater treatment plants that accept wastewater from textile dyeing and finishing enterprises, Higher than the relevant national standards< On the 26th, Yu Shuxun, academician of Chinese Academy of engineering and chairman of China Cotton society, told reporters at the "China colored cotton - 2014 ecological forum" that the source of pollution prevention and control in the textile dyeing and finishing industry lies in the application of new materials for health and environmental protection< According to Yu Shuxun, colored cotton is naturally colored, and the fiber has natural color when flocculent. "Colored cotton has natural and simple color without bleaching and dyeing treatment, which reduces the processing procedures, reduces the discharge of sewage, and avoids the pollution of water resources caused by working hours and the prohibition of dyes The harm of toxic additives to human body and damage to environment. "< According to Yu Shuxun, at present, China color cotton group has 95% of the national output and 60% of the world output. 1n recent years, the annual growth rate of children's clothing based on colored cotton is more than 30% the Ministry of Environmental Protection said that the promotion of low pollution and advanced production technology in textile dyeing and finishing industry will help China’s textile dyeing and finishing industry to embark on the development track of high efficiency, energy saving and low pollution copyright notice: This article is reproduced from the network media, only represents the author’s point of view, and has nothing to do with this website. 1f the information column articles and comments violate your legal rights, please call to let us know and we will deal with them in time

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