The Ministry of Environmental Protection recently issued the "Announcement on the Implementation of Special Emission Limits for Air Pollutants in the Beijing-Tianjin-Hebei Air Pollution Transmission Channel City", which is required from March 1, 2018, within the administrative area of ​​the Beijing-Tianjin-Hebei atmospheric pollution transmission channel. Industries that have specified specific emission limits for atmospheric pollutants in the emission standards, as well as new construction projects for boilers, have begun to implement special emission limits.
What are the positive effects of full implementation of special emission limits on atmospheric governance in 2+26 cities? How to promote by region, step by step, and sub-industry? This edition of the special issue issued relevant reports to readers.
1 tightening emission standards, pollutant emissions will be greatly reduced
In the morning, a high-speed train heading for Beijing flew in orbit, and the sun leaped from the blue horizon. Professor Feng Yinchang, a professor and doctoral supervisor at the School of Environmental Science and Engineering at Nankai University, went to Beijing for a business trip and looked at the vast expanse of high-speed rail. He was delighted. Although he did not have the habit of taking the blue sky, he could not help but lift his mobile phone. Committed to the scientific research of air pollution prevention and control for many years, he hopes that there will be blue sky and white clouds every day. And this is also the expectation of every ordinary person against the blue sky.
From March 1st, 2018, in the cities of Beijing-Tianjin-Hebei atmospheric pollution transmission channel, the national emission standards for the special emission limits of air pollutants and new construction projects for boilers began to implement special emission limits. This is undoubtedly a major positive and far-reaching impact for the 2+26 cities that are concentrating on the blue sky defense battle.
The ten first phase missions of the atmosphere ended successfully in 2017, but this is not the end of air pollution control.
On February 27, Liu Bingjiang, director of the Department of Atmospheric Environment Management of the Ministry of Environmental Protection, said at the press conference that air pollution prevention and control has made significant progress in stages, but there is still a big gap compared with the needs of the people's growing and beautiful ecological environment. Therefore, there is still a long way to go to improve the air quality.
The high emission intensity is the main cause of heavy atmospheric pollution in Beijing-Tianjin-Hebei and surrounding areas in autumn and winter. In particular, thermal power, steel, petrochemical, chemical, non-ferrous, building materials and other industries are the main sources of atmospheric pollutants. Feng Yinchang said. To win the blue sky defense war, the key is to significantly reduce the total discharge of major pollutants, implement special emission limits, and implement key industry upgrades as an important way to reduce the total amount of pollution emissions.
The so-called special emission limit is a higher and stricter emission requirement than the national standard for pollutant discharge. As early as February 2013, the Ministry of Environmental Protection issued the "Notice on the Implementation of Special Emission Limits for Air Pollutants", requiring 19 provinces (autonomous regions and municipalities) in the three regions of Beijing, Tianjin, Hebei, Yangtze River Delta and Pearl River Delta. The six major industries, including thermal power, petrochemical, cement, nonferrous metals and chemical industry, as well as coal-fired boiler projects in 47 prefecture-level and above cities, implement special emission limits for atmospheric pollutants. The “Beijing-Tianjin-Hebei and Surrounding Areas 2017 Air Pollution Prevention and Control Work Plan†issued in February 2017 further clarified that all sulphur dioxide and nitrogen emissions from coal-fired boilers in the 2+26 urban administrative area will be available before the end of September 2017. Oxide and particulate matter atmospheric pollutants perform special emission limits.
It is self-evident that the special emission limits are implemented in the 2+26 cities of the Beijing-Tianjin-Hebei atmospheric pollution transmission channel. This move will force the enterprise to transform and upgrade, which is an important means to achieve healthy economic development.
Lei Yu, deputy director of the Atmospheric Environment Planning Department of the Environmental Planning Department of the Ministry of Environmental Protection, believes that 2+26 cities fully implement special emission limits, and put forward consistent requirements for enterprises in the entire region, and unified emission standards with one of the key elements of regional pollution prevention and control. echo. Compared with the 2013 standards, the industries and regions that implement the emission limit requirements have expanded to varying degrees. The scope of implementation has been expanded from 9 cities to 2+26 cities, and the implementation of urban areas has also been extended from the main urban area. In the scope of the entire administrative region, the scope of implementation of new enterprises has increased the coking industry, and the scope of implementation of existing enterprises has increased the coking, cement, nonferrous and chemical industries. This will help promote relevant industries to take the initiative and take measures to reduce the emission of atmospheric pollutants.
Facts speak louder than words. Feng Yinchang told reporters: From the monitoring data, the average concentration of major air pollutants in 2017 was significantly lower than that in 2013, the duration of heavy pollution weather was shortened, the pollution range was reduced, and the pollution level was also significantly reduced. Among them, the promotion of scale promotion and large-scale emission reduction projects in key areas and key industries have played an important role.
2 Full implementation of special emission limits should be steadily advanced
The road has to go step by step, and the rice has to be eaten bit by bit. The full implementation of special emission limits in 2+26 cities needs to be carried out in steps and types. For some cities or industries with weak foundations, time is still very urgent. Feng Yinchang said. Therefore, all localities should, according to their own industry characteristics, pollution characteristics, work basis and technical conditions, formulate corresponding improvement and transformation plans and corresponding supporting funds, economic incentives and other safeguard mechanisms according to local conditions, and accelerate the pace of construction of the project.
The reporter noted in the interview that some cities have already been prepared. Bao Jinhong, deputy director of the Atmospheric Department of the Tianjin Environmental Protection Bureau, introduced the implementation of special emission limits. The tone was calm and calm: we have already increased the requirements for the chemical industry in our previous work. In the next step, Tianjin will focus on chemical and other industries, carry out pull-net investigations in conjunction with special emission limit requirements, implement inventory management, implement local management responsibilities, and ensure that key industry enterprises meet the special emission limit requirements for air pollutants.
Feng Yinchang told reporters that Tianjin's air quality improvement in 2017 was obvious, largely due to the full implementation of special emission limits and even stricter local emission standards in key industries such as thermal power and cement.
Look at a set of data: Tianjin coal-fired generating units are required to achieve ultra-low emissions, and the concentration of soot, sulfur dioxide and nitrogen oxides will be reduced by 30% to 50% on the basis of special emission limits. Ex-emissions of non-electric coal-fired boilers above 35 tons of steam, the concentration of sulfur dioxide, particulate matter and nitrogen oxides is only 25% to 75% of the special emission limit. It is estimated that the contribution rate of these key industry improvement measures to the improvement of pm2.5 concentration in Tianjin is more than 35%. Feng Yinchang said.
Turn pressure into power and break down the target layer. Beijing, Tianjin and Hebei and some provinces and cities in the surrounding areas have self-accelerated and are advancing various tasks in an orderly manner.
According to the relevant person in charge of the Atmospheric Department of the Environmental Protection Department of Hebei Province, as early as the beginning of 2015, Hebei Province has launched a special campaign for ultra-low emission upgrading of coal-fired power plants. The thermal power industry in Hebei Province has completed ultra-low emission conversion, and the emission concentration is higher than that in the national standard. The special emission limit is still about 50% lower, and the industry has fully implemented the special emission limit requirements for atmospheric pollutants. At the same time, Hebei has also established local standards for the emission of atmospheric pollutants in the cement industry and flat glass industry. Both local standards are stricter than the emission limits stipulated by national standards.
Elevating emission standards is a strong support for advancing the pollution control process. Gao Jianmin, director of the Environmental Protection Department of Hebei Province, said that in 2018, Hebei will further improve its governance standards, and implement ultra-low emission reforms for non-thermal power industries such as coking and coking, and carry out in-depth treatment of white smoke in coal-fired power plants and coking industries.
3 standard effective landing is the key
In the centralized control room of Jincheng Thermal Power of Shanxi Coal Group of Shanxi Province, technicians are concentrating on monitoring the operation of environmental protection equipment in real time, and adjusting various data indicators to ensure that the main pollutants meet the ultra-low emission standards. Lu Juntao, manager of production technology department of China Coal Group Jincheng Thermal Power Co., Ltd. said: Our desulfurization system has been changed from the previous 3 layers to 5 layers, the desulfurization tower height has increased from 32 meters to 54 meters, and the denitration system catalyst has been increased from two layers to three. Layer, while adding a wet electrostatic precipitator. Through the transformation of these three aspects, pollutant emissions have been effectively reduced, and the emission reduction effect is obvious.
If the policy is good, it needs to take root. Execution is in place and is the top priority. A series of work promoted by the environmental protection department in recent years provides a better basis for the effective implementation of special emission limits. Lei Yu believes that the gradual advancement of sewage permit management puts higher requirements on the refined management of fixed sources in various places, and also provides a better platform. In addition, the advancement of industrial pollution sources to the comprehensive emission standards has put forward higher requirements for corporate emissions regulation, and at the same time improved the ability to monitor emissions.
Of course, due to the different characteristics of air pollution in Beijing, Tianjin and Hebei and the surrounding areas, the imbalance of economic development, the basis of pollution prevention and the level of governance technology, in the process of fully implementing the special emission limit requirements, difficulties are encountered. It is inevitable. Some enterprises will even face the dilemma of not surviving and dying, and this is a normal phenomenon in the critical period of transformation and upgrading and climbing.
Feng Yinchang said that the requirements of air pollution control are not to hinder economic development, but to provide services for development. Comprehensively tightening emission standards and raising environmental protection thresholds are important targets for guiding enterprises to clean up and upgrade, promote transformation and upgrading, green development, and enhance market competitiveness. The positive impact of the implementation of special emission limits on environmental protection will be obvious and will help to create a win-win situation for both industry and environmental protection. Feng Yin Factory is full of confidence in this.
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Three major time nodes for the implementation of special emission limits for atmospheric pollutants
Experts said that up to now, China's 25 emission standards have specified special emission limits for atmospheric pollutants. For the enterprises of the Beijing-Tianjin-Hebei atmospheric pollution transmission channel involved in these 25 emission standards, the implementation will be carried out in three time points.
First time
March 1, 2018
The construction projects that are newly accepted for environmental impact assessment shall implement special emission limits for atmospheric pollutants.
Second time
October 1, 2018
Thermal power, petrochemical, chemical, non-ferrous (without alumina), existing enterprises in the cement industry and in-use boilers must implement special emission limits for sulfur dioxide, nitrogen oxides, particulate matter and volatile organic compounds.
Third time point
October 1, 2019
Existing companies in the coking chemical industry are required to implement special emission limits for sulfur dioxide, nitrogen oxides, particulate matter and volatile organic compounds. (Zhang Chunyan Wang Shan)
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