Ministry of Environmental Protection: will tighten the anti-pollution standard in the textile dyeing and finishing industry

The relevant person in charge of the Ministry of Environmental Protection has revealed that he is seeking advice from the relevant departments, industry associations and enterprises on the "Guidelines for the prevention and control of pollution prevention and dyeing in the textile dyeing and finishing industry" (draft for soliciting opinions), and in accordance with the requirements of this technical guide, the textile dyeing and finishing industry Pollution prevention standards will be tightened.

China's textile industry has a complete industrial chain and a wide range of categories. It is China's dominant pillar industry, an important civilian production industry, and an obvious advantage in international competition. It occupies an important position in the development of the national economy.

Data show that China's cotton yarn, cotton, wool, silk, chemical fiber, clothing and other production ranks first in the world. In 2010, China's fiber processing volume reached 41.3 million tons, and production accounted for 57% of the world's total, and domestic demand accounted for 70%.

However, the total amount of textile dyeing and finishing wastewater is large, and the pollution is serious and difficult to handle. It is one of the key pollution sources in China's industrial system and is also the focus of environmental protection work in the textile industry.

According to the Department of Science and Technology Standards of the Ministry of Environmental Protection, in 2010, China's textile industrial wastewater discharge accounted for 11.6% of total industrial wastewater discharges, and chemical oxygen demand emissions accounted for 10.2% of total emissions, both ranking third in the industry.

According to the Chinese Academy of Environmental Sciences, dyeing and finishing is a key industry in the textile industry chain linking front-end spinning, weaving, and upgrading of clothing and home textiles, as well as value-added, and is the most technologically advanced in the industrial chain of the textile industry. One of the links, but it is also the most polluting link, the wastewater discharge accounts for 80% of the total emissions of the textile industry, and the water quality is characterized by high CODCr concentration, low B/C, high pH, ​​and high chroma. According to the above technical guide preparation instructions, China's textile industry is a fully competitive industry dominated by small and medium-sized enterprises. Enterprises above designated size account for 0.4%, SMEs account for 99.6%, and non-public ownership enterprises account for 95%. Textile dyeing and finishing companies are mainly concentrated in the eastern coast rich in water resources and economically developed regions, the Yangtze River, the Yellow River, the Pearl River, the Lancang River and the Huaihe River downstream; northeastern Haihe River Basin also has a certain distribution. From the perspective of the provinces, Zhejiang, Jiangsu, Guangdong, Shandong, Fujian and other five provinces of dyeing and finishing cloth accounted for more than 92% of the country.

According to the reporter’s understanding, due to the relatively developed economy in these areas, their environmental protection requirements have also been continuously improved. Some enterprises in these areas have been forced to transfer to the underdeveloped regions in the central and western regions under the pressure of environmental protection.

However, along with the westward movement of enterprises, pollution has also spread. According to the Chinese Academy of Environmental Sciences, in terms of technical equipment, China's textile dyeing and finishing industry accounts for 57% of the world's output, but its products are mainly mid- to low-end, with the exception of a few advanced companies adopting world-leading equipment, and the overall level of production technology and equipment in the industry. Not high, digital management of the industry, the proportion of automation is very low, a small amount of enterprises to achieve the three-tier measurement, 50% of enterprises to achieve the second measurement, small-scale enterprises only to achieve the entire plant energy consumption, water consumption, material consumption measurement level.

According to the preparation instructions, the printing and dyeing industry is too densely distributed in areas where the capacity of the eastern environment is lacking. Compared with advanced countries in the world, China's energy consumption is 3 to 5 times, its water consumption is 2 times, and its dyeing and chemical material usage is 1.2 times.

The reporter learned from the Ministry of Environmental Protection that China's "Emission Standard for Water Pollutants in Textile Dyeing and Finishing Industry" GB4287-2012 was published on the 10th to 19th of 2012, and implemented on January 1st, 2013. The current revision adjusted the emission control pollutants items according to the needs of the implementation of national environmental protection planning, environmental protection management and law enforcement work, increased the control requirements for pollutant discharge, promoted the coordinated development of regional economy and environment, and promoted the adjustment of economic structure. The transformation of economic growth mode has guided the development direction of textile dyeing and finishing production technology and pollution control technology, which specifies the special emission limits for water pollutants.

According to the reporter's understanding, in recent years, localities have also formulated local standards and corresponding policies that are stricter to the requirements of the country according to their own characteristics. For example, Jiangsu Province issued the "Draining Standard for Textile Dyeing and Finishing Industry Water Pollutants" DB32/670 on June 1, 2004. -2004, This standard is applicable to textile dyeing and finishing industry enterprises and centralized industrial wastewater treatment plants that accept wastewater from textile dyeing and finishing industries, which is higher than the relevant national standards.

On the 26th, Yu Shuxun, an academician of the Chinese Academy of Engineering and the chairman of the China Cotton Association, told reporters at the “China Color Cotton 2014 Ecological Forum” that the source of pollution prevention and control in the textile dyeing and finishing industry was the application of health and new environmental protection materials.

Yu Shuxun said that colored cotton is naturally colored, and the fiber has a natural color when bolled. “Colored cotton has a natural and quaint color, eliminating the need for bleaching, printing and dyeing, thereby reducing the number of processing steps and correspondingly reducing the discharge of sewage. It also avoids the pollution of water resources during processing and the ban of dyes, toxic auxiliaries on the human body and damage to the environment."

Yushu Xun told that at present, China Color Cotton Group has mastered the production of 95% of the country and 60% of the world. In recent years, the annual growth rate of baby clothing with colored cotton as raw material is above 30%.

The Ministry of Environmental Protection mentioned above that the textile dyeing and finishing industry to promote low pollution and advanced production technology will help China's textile dyeing and finishing industry to embark on an efficient, energy-saving, low pollution development track.

Copyright Statement: This article is reproduced from online media and represents only the author's opinion. It has nothing to do with this site. If news articles and comments infringe your legal rights, please call us and we will handle it in a timely manner.