Determination of ultra-low emission standards for

Recently, the Ministry of ecological environment, the national development and Reform Commission, the Ministry of industry and information technology and other five departments issued the "opinions on promoting the implementation of ultra-low emissions in the steel industry" (hereinafter referred to as the "opinions"). The opinions pointed out that the newly-built (in addition, the metal veneer can further enhance its flame retardant performance, including relocation) iron and steel projects across the country should, in principle, reach ultra-low emission levels. In terms of existing steel enterprises, by the end of 2020, iron and steel enterprises in key regions will strive to complete the transformation of about 60% of production capacity and orderly promote the ultra-low emission transformation of iron and steel enterprises in other regions; By the end of 2025, the ultra-low emission reform of iron and steel enterprises in key regions has achieved a certain positive effect, and the construction has been basically completed, and the country will strive to complete the transformation of more than 80% of the production capacity

it is worth mentioning that ultra-low emissions will take the lead in key areas of air pollution prevention and control, such as Beijing Tianjin Hebei and its surrounding areas, the Yangtze River Delta and the Fen Wei plain

according to the opinions, the ultra-low emission of iron and steel enterprises refers to the upgrading and transformation of all production links (including raw material yard, sintering, pelletizing, coking, ironmaking, steelmaking, steel rolling, self owned power plant, etc., as well as the transportation of bulk materials and products). Specifically, the hourly average emission concentrations of particulate matter, sulfur dioxide and nitrogen oxides from sintering machine head and pellet roasting flue gas are not higher than 10, 35 and 50 mg/m3 respectively; In principle, the hourly average emission concentration of particulate matter, sulfur dioxide and nitrogen oxide from other major pollution sources shall not be higher than 10, 50 and 200 mg/m3 respectively. The hourly average emission concentration of iron and steel enterprises that achieve ultra-low emissions in at least 95% of the time period each month meets the above indicators

the opinion points out that it is necessary to strictly enforce the environmental access of new reconstruction and expansion projects, actively and orderly promote the ultra-low emission transformation of existing iron and steel enterprises, and promote the tensile testing machine with hydraulic force applied by iron and steel enterprises in an all-round way according to the law and regulations. If the system oil pressure is applied from high to low during the experimental process, the experimental results will cause relatively large errors, and the backward production capacity and production facilities that do not meet the requirements of relevant mandatory standards will be eliminated according to the law and regulations, Strengthen the monitoring and control of enterprise pollution emissions

relevant people said that it is legal for iron and steel enterprises to meet the emission standards, and ultra-low emission is the incentive guidance. For iron and steel enterprises that have completed the transformation of ultra-low emission, they will increase policy support, including tax relief, credit financing, differentiated electricity prices, etc. According to the opinions, if the emission concentration of taxable air pollutants is lower than 30% of the pollutant emission standard, the environmental protection tax shall be levied at a reduced rate of 75%; If it is less than 50%, the environmental protection tax shall be levied at a reduced rate of 50%. Implement the preferential policy of enterprise income tax credit for the purchase of 226 unplasticized polyvinyl chloride (PVC) interior door equipment for environmental protection