New Standards For Exhaust Emissions From China's Textile And Dyeing Industry Will Be Formulated

In twenty-first Century, Green environmental protection As the theme of the times, the concept of low carbon and environmental protection has been promoted to an unprecedented height in all walks of life. As one of China's pillar industries, the textile industry has been severely damaged by the international "carbon label" restriction "green barrier". China's textile industry has been severely damaged in the international textile trade. On the one hand, the international textile trade's economic boycott policy on China's textile industry shows the environmental protection of the world's circular economy. On the other hand, it also urges China's textile industry to constantly improve its technology and equipment, enhance the environmental protection performance of textiles, improve the management system of the domestic textile industry, and ultimately enhance China's core competitiveness in international economic and trade.

The textile industry has always been a traditional polluter in China, producing a lot of textile wastewater and waste gas every year. As early as 1992, China formally issued the implementation of the "textile dyeing and finishing industry water pollutants discharge standards" as the textile printing and dyeing wastewater discharge control index, with the increasing domestic environmental protection appeal, the state for textile printing and dyeing waste water Emissions are also constantly changing the latest standards to limit the total amount of wastewater discharged from textile and dyeing enterprises. At present, many large enterprises in China have taken the enterprise waste water as a top priority task for enterprises. However, for textile printing and dyeing waste gas, many enterprises are still not aware of the seriousness of exhaust emissions. Due to the imperfection of monitoring technology, the control of exhaust emission has not been paid enough attention. Many enterprises can only refer to the relevant standards such as the comprehensive emission standards of air pollutants and the standard of odor pollutants emission to control exhaust emissions. Therefore, there must be some limitations. If we want to control the textile printing and dyeing waste more scientifically, we need to formulate relevant emission standards specifically for the textile and dyeing industry.

With the improvement of the urban air quality monitoring system, the problem of PM2.5 is getting more and more attention from the people. The VOCs of industrial waste gas is directly related to the two aerosol formation of PM2.5. In 1996, the national standard of atmospheric pollution control was introduced (GB16297-1996). Meanwhile, textile waste gas has been listed as an important source of air pollution from the US EPA[3] and EU Document No. 2000/76/EC European Union industrial waste gas emission standards. The harm of textile waste gas to the atmosphere is far more difficult to control than waste water. According to the Research Report on the analysis and prediction of emissions from 2011-2020 unconventional control pollutants (environmental and Economic Forecasting Research Report), China's textile and dyeing and printing industry (VOCs) has a 8.8% share of the total emissions of volatile organic compounds, which poses a serious threat to the whole atmospheric environment and human health. Since it has already done harm, we need to respond positively to these environmental damage behaviors. However, due to the lack of emission standards for textile printing and dyeing industry in China at present, the problem of exhaust emissions from the textile industry is still pending. If these emissions problems still can not be effectively limited, it will become the next more impacted green barrier for China's textile exports.

VOCs is a common and complex component of air. organic pollutant The general term includes mainly alkanes, olefin and aromatic hydrocarbons, as well as various oxygen-containing hydrocarbons, halogenated hydrocarbons, nitrogen hydrocarbons, sulfur hydrocarbons, low boiling point polycyclic aromatic hydrocarbons and other substances. Under normal circumstances, these volatile gases will directly pollute the atmosphere after they are directly discharged into the atmosphere. Besides, they can also undergo complex photochemical reactions to form two organic aerosols (an important part of inhalable particulate matter) and thus endanger human health, [4], which is also an important precursor to the formation of PM2.5. The main impact of PM2.5 includes atmospheric visibility, atmospheric temperature, plant growth and human health. Our common "fog and haze" weather is caused by PM2.5. The greatest hazard of PM2.5 is in human health. Because of its small particle size, PM2.5 is not blocked by human nasal cavity. Most of them can directly enter human lungs and stay in the deep part of the lungs. It is difficult to be excluded from the body, and because of its complex chemical composition, it can lead to a series of respiratory diseases and even cancer [5]. The disadvantages caused by VOCs make the society pay more and more attention to exhaust emissions. However, the object of concern is mostly limited to the emission control of industrial waste gas and automobile exhaust. (6]) many enterprises or departments concerned have not invested too much energy in the emission of exhaust gas from textile industry. The total amount of VOCs emissions in the textile industry accounts for 8.8% of the total VOCs emissions in the country. This is a large proportion. If we can take some relevant measures at the source of pollution to control the emissions of the textile industry, it will undoubtedly improve the air quality effectively, and avoid the impact of international trade barriers, and enhance our competitive position in international trade. The hazards caused by VOCs have attracted more and more attention to exhaust emissions.