Detail of DB12/ 151-2020

Introduction of DB12/ 151-2020

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is formulated with a view to implementing the Environmental Protection Law of the People's Republic of China, the Law on the Prevention of Air Pollution of People's Republic of China, and the Regulation on the Prevention of Air Pollution of Tianjin City, so as to improve the ambient air quality and human health. This standard specifies the emission limits as well as monitoring and supervising requirements of air pollutants for boilers. Corresponding national or local emission standards of pollutants are applicable to the emitted water pollutants and environmental noises of boilers, and relevant national control standards of solid waste pollution are applicable to the identification, treatment and disposal of generated solid wastes. This standard was firstly issued in 1999, firstly revised in 2003, secondly revised in 2016 and this is the third revision. This standard shall be revised timely according to social and economic development and requirements for environmental protection. Main revised content of this version is presented as follows: ——The emission concentration limits have been limited; ——The benchmark O2 content of coal-fired boilers has been adjusted; ——The emission limits for carbon monoxide of new gas-fired boilers have been added; ——The management and control requirements for fugitive emission of the boiler plant have been added; ——The management and control requirements for boilers in urban high-polluted fuel forbidden area have been emphasized; ——The range of automatic monitoring equipment for pollutant emission installed in boilers has been adjusted; ——The method standard for concentration determination of air pollutants has been updated; ——The compliance judgment has been added. This standard was proposed by and is under the jurisdiction of the Tianjin Ecology and Environment Bureau. Drafting organization of this standard: the Tianjin Academy of Environmental Sciences, the Tianjin Key Laboratory of Air Pollution Prevention and Control and the Tianjin Huanke Zhanyun Technology Development Co., Ltd. Drafters of this standard: Yao Liying, Chang Wentao, Zhang Hongming, Yang Yizhang, Wang Zhen, Zhang Lina, Zhou Yang, Li Fan, Wang Wenxiu, Zhang Limin, Wang Yongmin, Li Zhiqiang, Wu Yue, Liu Ling and Li Yumeng. This standard was approved by the Tianjin Municipal People's Government in August, 2020. Emission standard of air pollutants for boiler 1 Application scope This standard specifies the emission control requirements, monitoring requirements as well as the implementation and supervision of standards for pollutants such as particulate matters, sulfur dioxide, nitrogen oxide, mercury and its compounds, carbon monoxide and fugitive dust in boiler plant. This standard is applicable to the air pollutant emission management of in-use boilers, such as steam boilers with single output of 65t/h or less, hot water boilers with various capacities, organic fluid boilers with various capacities and grate-fired boilers with various capacities, as well as the environmental impact assessment of boiler construction projects, design of environmental protection facilities, environmental protection acceptance after completion, pollutant permit issuance and air pollutant emission management after commissioning. Boilers fueled by briquette, coal water slurry, coal gangue, petroleum coke, oil shale, heavy oil, residual oil and other fuels shall be subject to the emission control requirements for coal-fired boilers in this standard; boilers fueled by blast furnace gas, coke oven gas, alcohol-based fuels (such as methanol, ethanol and dimethyl ether) and other gaseous fuels shall be subject to gas-fired boilers in this standard; boilers fueled by light oil, biomass oil and other liquid fuels shall be subject to the emission control requirements for oil-fired boilers in this standard. This standard is not applicable to boilers fueled by domestic garbage, hazardous waste and biomass. This standard is applicable to pollutant emission behaviors allowed by law; the site selection of the newly established pollution source and the management of the current pollution source in the special protected zone shall be in accordance with the relevant provisions in such laws, regulations and rules as Law of the People’s Republic of China on the Prevention and Control of Atmospheric Pollution, Law of the People’s Republic of China on Prevention and Control of Water Pollution, Marine Environment Protection Law of the People’s Republic of China, Law of the People’s Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste, Law of the People's Republic of China on the Prevention and Control of Radioactive Pollution and Law of the People's Republic of China on Environmental Impact Assessment. 2 Normative references The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For undated references, the effective edition (including any amendments) applies. GB 5468 Measurement method of smoke and dust emission from boilers GB 13271 Emission standard of air pollutants for boiler GB 37822 The discharge standard and measurement methods of pollutants from paint manufacturing GB/T 15432 Ambient air — Determination of total suspended particulates — Gravimetric method GB/T 16157 Determination of particulates and sampling methods of gaseous pollutants emitted from exhaust gas of stationary source HJ/T 42 Stationary source emission — Determination of nitrogen oxide — Ultraviolet spectrophotometric method HJ/T 43 Stationary source emission — Determination of nitrogen oxide — N(1-naphtye)-ethylenediamine dihydrochloride spectrophotometric method HJ/T 44 Stationary source emission — Determination of carbon monoxide — Non-dispersive infrared absorption method HJ/T 55 Technical guidelines for fugitive emission monitoring of air pollutants HJ 57 Stationary source emission — Determination of sulfur dioxide — Fixed potential by electrolysis method HJ 75 Specifications for continuous emissions monitoring of SO2, NOX, and particulate matter in the flue gas emitted from stationary sources HJ 76 Specifications and test procedures for continuous emission monitoring system for SO2, NOX and particulate matter in flue gas emitted from stationary HJ/T 373 Technical specifications of quality assurance and quality control for monitoring of stationary pollution source (on trial) HJ/T 397 Technical specifications for emission monitoring of stationary source HJ/T 398 Stationary source emission — Determination of blackness of smoke plumes — Ringelmann smoke chart HJ 543 Stationary source emission — Determination of mercury — Cold atomic absorption spectrophotometry (Provisional) HJ 629 Stationary source emission — Determination of sulphur dioxide — Non-dispersive infrared absorption method HJ 692 Stationary source emission — Determination of nitrogen oxides — Non-dispersive infrared absorption method HJ 693 Stationary source emission — Determination of nitrogen oxides — Fixed potential by electrolysis method HJ 820 Self-monitoring guidelines for pollution sources — Thermal power generation and boiler HJ 836 Stationary source emission — Determination of mass concentration of particulate matter at low concentration — Manual gravimetric method HJ 917 Stationary source emission — Determination of total gaseous mercury — Carbon sorbent traps thermal cracking atomic absorption spectrophotometric method HJ 973 Stationary source emission — Determination of carbon monoxide — Fixed potential by electrolysis method HJ 1131 Stationary source emission — Determination of sulphur dioxide — Portable ultraviolet absorption method HJ 1132 Stationary source emission — Determination of nitrogen oxides — Portable ultraviolet absorption method Measures for the Administration of Environmental Monitoring (Decree No.39 of the Ministry of Ecology and Environment of the People's Republic of China) Tianjin Automatic Monitoring and Management Measures for Stationary Sources (JINHUANGUIFAN [2019] No.7) 3 Terms and definitions For the purpose of this standard, the following terms and definitions apply. 3.1 boiler equipment heating water or other working medium with the help of heat energy released from fuel combustion or other heat energy so as to produce the steam, hot water or other working medium with specified parameters (temperature and pressure) and quality 3.2 in-use boiler boiler that has been constructed and put into production or whose environmental impact assessment document has been approved or put on record before the implementation date of this standard 3.3 new boiler newly-built, rebuilt and extended boiler of which the environmental impact assessment document has been approved or put into record before the implementation date of this standard 3.4 organic fluid boiler boiler with organic fluid as heat carrier working medium 3.5 standard condition state of boiler where the temperature of the smoke is 273.15K and the pressure is 101.325kPa. The emission concentration limit specified in this standard is based on the dry smoke under standard condition 3.6 stack height vertical distance from boiler location ±0 ground level to stack emission outlet. For the boiler located below the ground level, the distance from the surface where the boiler is located to ±0 ground surface shall be deducted 3.7 O2 content spare free oxygen contained in the smoke after fuel combustion, which is usually expressed with dry basis volume percentage 3.8 urban high-polluted fuel forbidden area area designated by the municipal people's government within the administrative area and where the burning of high-polluted fuels is prohibited 4 Control requirements for air pollutants emission 4.1 Emission limit of air pollutants from in-use coal-fired boiler The emission limits of air pollutants specified in Table 1 shall be carried out for in-use coal-fired boilers. Table 1 Emission concentration limits of air pollutants from in-use coal-fired boiler In mg/m3 Pollutant Limit Monitoring point of pollutant emission Before October 31, 2020 From November 1, 2020Note Built before July 31, 2016 Built after August 1, 2016 PM 30 20 10 Stack or flue Sulfur dioxide 100 50 35 Nitrogen oxide 200 150 50 Mercury and its compounds 0.05 0.05 0.03 Smoke blackness (Ringelmann number, level) ≤ 1 Stack emission outlet Note: < 65t/h (45.5MW). The limit which coal-fired boilers shall be implemented from November 1, 2021. 4.2 Emission limit of air pollutants from in-use oil-fired boiler The emission limits of air pollutants specified in Table 2 shall be carried out for in-use oil-fired boilers. Table 2 Emission concentration limits of air pollutants from in-use oil-fired boiler In mg/m3 Pollutant Limit Monitoring point of pollutant emission Before October 31, 2021 From November 1, 2021 Built before July 31, 2016 Built after August 1, 2016 PM 30 10 10 Stack or flue Sulfur dioxide 50 20 20 Nitrogen oxide 200 80 50 Smoke blackness (Ringelmann number, level) ≤ 1 Stack emission outlet 4.3 Emission limit of air pollutants from in-use gas-fired boiler The emission limits of air pollutants specified in Table 3 shall be carried out for in-use gas-fired boilers.

Contents of DB12/ 151-2020

Foreword i 1 Application scope 2 Normative references 3 Terms and definitions 4 Control requirements for air pollutants emission 5 Monitoring requirements for air pollutant 6 Implementation and supervision