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New regulations on steel emission will be issued to tighten emission limits


Release time:

2015-09-11

Despite the business challenges, the "green regulation" of the steel industry continues. At the 2012 China Iron and steel energy conservation and emission reduction forum held by the metallurgical industry planning and Research Institute recently, relevant people from the Ministry of environmental protection revealed that

Despite the business challenges, the "green regulation" of the steel industry continues. At the 2012 China Iron and steel energy conservation and emission reduction forum held by the metallurgical industry planning and Research Institute recently, relevant people from the Ministry of environmental protection revealed that the Ministry of environmental protection has deliberated and passed eight national pollutant emission standards, including the emission standard of air pollutants for iron and steel sintering and pelletizing industry. Currently, it is being countersigned by AQSIQ in accordance with the procedures and will be released in the near future.

Greatly tighten the discharge limit

During the 12th Five Year Plan period, the iron and steel industry has become one of the key objectives of the national energy conservation and emission reduction policy regulation, and the long planned standards for the steel industry pollutant emission will be implemented one by one in the near future.

According to Wu Xuefang, director of the Environmental Standards Institute of the Ministry of environmental protection, the new standard has substantially tightened the emission limits for particulate matter and sulfur dioxide, added emission limits for pollutants such as nitrogen oxides, and set stricter special emission limits for water and air pollutants in environmentally sensitive areas.

According to industry insiders, compared with the current emission requirements of air pollutants for the iron and steel industry, the new regulations add five pollutants. Compared with the current discharge standard of water pollutants for iron and steel industry, 14 pollutants are added, including 11 heavy metal and toxic pollutants.

The standard clearly stipulates that the particulate matter emission concentration of the whole industry is adjusted from the current 100-150mg / m3 to 20-50mg / m3, the sulfur dioxide emission concentration of the newly-built iron and steel sintering machine is adjusted from the current 2000mg / m3 to 200mg / m3, and the NOx emission concentration is added to 300mg / m3. This requires particulate matter to be treated by efficient dust removal technology, and sulfur dioxide can be treated by installing flue gas desulfurization equipment. At present, a transition period of two years and three months has been set up for the existing iron and steel enterprises to meet the discharge standard, so that the enterprises can have some time to transform the equipment. After the transition period, the existing enterprises must implement strict emission control requirements.

It is understood that the Ministry of environmental protection has decided to revise a series of emission standards for the iron and steel industry, including the emission standard for pollutants from iron ore mining and dressing industry, air pollutant emission standard for iron and steel sintering and pelletizing industry, air pollutant emission standard for iron making industry, air pollutant emission standard for steel making industry, air pollutant emission standard for steel rolling industry and iron Emission standard of pollutants for alloy industry, water pollutant discharge standard for iron and steel industry and pollutant emission standard for coking chemical industry.

The situation of pollution prevention and control is still grim

In recent years, China has paid more and more attention to energy conservation and emission reduction, and various pollution prevention and control work has made some progress, but the situation is still grim.

According to the data, during the Eleventh Five Year Plan period, China's total sulfur dioxide emission was reduced by 14.29%, which exceeded the emission reduction task; the emission of air pollutants in key areas including thermal power was significantly reduced, and the sulfur dioxide emission intensity of electric power, non-metallic mineral products and ferrous metal smelting industries decreased by 72.5%, 58.1% and 50% respectively; A total of 76.83 million kilowatts of small thermal power units were shut down nationwide, and backward iron making capacity of 120 million tons, steel-making capacity of 72 million tons and cement of 370 million tons were eliminated.

During the 12th Five Year Plan period, energy conservation and emission reduction is still the key work of structural adjustment of iron and steel industry, and the state will continue to increase support for energy conservation and emission reduction. "The energy consumption per unit GDP and carbon dioxide emission intensity proposed in 2011 are more difficult to achieve than the 2010 targets, and the energy-saving targets for the first year of the iron and steel industry have not been completed on schedule, so the energy-saving situation in 2012 can only be more severe." Industry insiders said frankly.

According to the Ministry of environmental protection, the emission standards of air pollutants in other key industries and areas such as motor vehicles, industrial boilers, cement and petrochemicals will be revised in the future, and the emission limits will be greatly tightened. At present, the national V emission standard for motor vehicles has been submitted for approval; the cement emission standard will be issued this year according to the deployment; and the emission standard for industrial boilers and petroleum refining is also being revised.


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