Polaris VOCs Online News: Recently, the Ministry of Environment issued the Emission Standard of Air Pollutants for Paint, Ink and Adhesive Industry (GB 37824-2019). According to the standard requirements, when the initial emission rate of NMHC in the exhaust of workshops or production facilities is ≥ 3 kg/h, VOCs treatment facilities should be configured, and the treatment efficiency should not be less than 80%. For key areas, when the initial emission rate of NMHC in the exhaust of workshops or production facilities is ≥ 2 kg/h, VOCs treatment facilities should be configured, and the treatment efficiency should not be less than 80%.
Details are as follows:
Emission Standard of Air Pollutants for Paint, Ink and Adhesive Industry
Emission standard of air pollutants for paint, ink and adhesive industry
(GB 37824-2019 Implemented on July 1, 2019)
This standard is formulated to implement the Environmental Protection Law of the People's Republic of China and the Law of the People's Republic of China on the Prevention and Control of Air Pollution, prevent and control environmental pollution, improve environmental quality, and promote the technical progress and sustainable development of the paint, ink and adhesive industries. This standard specifies the requirements for emission control, monitoring, supervision and management of air pollutants in the paint, ink and adhesive industries. The corresponding national pollutant discharge standards shall be applicable to the water pollutants, odor pollutants and environmental noise discharged by the coating, printing ink and adhesive industry enterprises or production facilities, and the identification, treatment and disposal of solid wastes shall be subject to the corresponding national solid waste pollution control standards. This standard is issued for the first time.
preface
This standard is formulated to implement the Environmental Protection Law of the People's Republic of China and the Law of the People's Republic of China on the Prevention and Control of Air Pollution, prevent and control environmental pollution, improve environmental quality, and promote the technological progress and sustainable development of the paint, ink and adhesive industries.
This standard specifies the requirements for emission control, monitoring, supervision and management of air pollutants in the paint, ink and adhesive industries. The corresponding national pollutant discharge standards shall be applicable to the water pollutants, odor pollutants and environmental noise discharged by the coating, printing ink and adhesive industry enterprises or production facilities, and the identification, treatment and disposal of solid wastes shall be subject to the corresponding national solid waste pollution control standards.
This standard is issued for the first time.
As of July 1, 2019 for new enterprises and July 1, 2020 for existing enterprises, their air pollutant emission control shall be implemented in accordance with the provisions of this standard, instead of the relevant provisions of the Integrated Emission Standard of Air Pollutants (GB 16297-1996). Local governments can implement this standard in advance with the approval of provincial people's governments according to local environmental protection needs and economic and technical conditions.
This standard is the basic requirements for the emission control of air pollutants in the paint, ink and adhesive industries. The local people's government at the provincial level may establish local standards for the discharge of pollutants for projects not specified in this standard; For items that have been specified in this standard, local pollutant discharge standards that are stricter than this standard may be formulated.
Appendix A and Appendix B of this standard are informative. This standard is formulated by the Department of Atmospheric Environment and the Department of Regulations and Standards of the Ministry of Ecological Environment.
This standard is mainly drafted by East China University of Science and Technology, China Paint Industry Association, Shanghai Environmental Monitoring Center, China Daily Chemical Industry Association Ink Branch, China Academy of Environmental Sciences, and Shanghai Chemical Environmental Protection Monitoring Station.
This standard was approved by the Ministry of Ecology and Environment on April 16, 2019.
This standard will be implemented from July 1, 2019. This standard is interpreted by the Ministry of Ecology and Environment.
Emission Standard of Air Pollutants for Paint, Ink and Adhesive Industry
1 Scope of application
This standard specifies the requirements for emission control, monitoring, supervision and management of air pollutants in the paint, ink and adhesive industries.
This standard is applicable to the management of air pollutant emission of existing paint, ink and adhesive industrial enterprises or production facilities, as well as the environmental impact assessment, environmental protection facility design, environmental protection acceptance upon completion, emission permit issuance and management of air pollutant emission after production of paint, ink and adhesive industrial construction projects. The production equipment for synthetic resin production and modification in paint, ink and adhesive industrial enterprises shall comply with the relevant provisions of GB 31572.
2 Normative References
This standard refers to the following documents or clauses therein. For dated references, only the dated versions are applicable to this standard. For undated reference documents of ultra-low CEMS system, the new edition of zui (including all modification lists) is applicable to this standard.
GB 31572 Emission Standard of Pollutants for Synthetic Resin Industry
GB 37822 Control Standard for Unorganized Emission of Volatile Organic Compounds
GB/T 4754-2017 Industrial Classification of National Economy
GB/T 8017 Petroleum Products - Determination of Vapor Pressure - Reid Method
GB/T 15516 Air Quality Determination of Formaldehyde Acetylacetone Spectrophotometry
GB/T 16157 Determination of Particulate Matter and Sampling Method of Gaseous Pollutants in Exhaust Gas from Stationary Pollution Sources
HJ 38 Determination of total hydrocarbon, methane and non methane total hydrocarbon in waste gas from fixed pollution sources Gas chromatography
HJ/T 42 Determination of nitrogen oxides in exhaust gas from stationary pollution sources Ultraviolet spectrophotometry
HJ/T 43 Determination of nitrogen oxides in exhaust gas from stationary pollution sources Naphthylethylenediamine hydrochloride spectrophotometric method
HJ/T 55 Technical Guidelines for Monitoring the Unorganized Emission of Air Pollutants
HJ/T 56 Determination of Sulfur Dioxide in Exhaust Gas from Stationary Pollution Sources Iodometric Method
HJ 57 Determination of sulfur dioxide in waste gas from fixed pollution sources Constant potential electrolysis method
HJ 77.2 Determination of dioxins in ambient air and exhaust gas Isotopic dilution high resolution gas chromatography-high resolution mass spectrometry
HJ/T 397 Technical Specification for Monitoring of Exhaust Gas from Stationary Sources
HJ 583 Determination of benzene homologues in ambient air Solid adsorption/thermal desorption gas chromatography
HJ 584 Determination of benzene homologues in ambient air Activated carbon adsorption/carbon disulfide desorption gas chromatography
HJ 604 Ambient air Determination of total hydrocarbons, methane and non methane total hydrocarbons Direct injection gas chromatography
HJ 629 Determination of sulfur dioxide in waste gas from fixed pollution sources Non dispersive infrared absorption method
HJ 644 Determination of volatile organic compounds in ambient air Adsorption tube sampling thermal desorption/gas chromatography-mass spectrometry
HJ 683 Ambient air Determination of aldehydes and ketones High performance liquid chromatography
HJ 692 Determination of nitrogen oxides in exhaust gas from fixed pollution sources Non dispersive infrared absorption method
HJ 693 Determination of nitrogen oxides in exhaust gas from fixed pollution sources Constant potential electrolysis method
HJ 732 Air bag method for sampling volatile organic compounds in exhaust gas from fixed pollution sources
HJ 734 Determination of volatile organic compounds in waste gas from stationary pollution sources Solid phase adsorption thermal desorption/gas chromatography-mass spectrometry
HJ 759 Determination of Volatile Organic Compounds in Ambient Air Tank Sampling/Gas Chromatography Mass Spectrometry
HJ 819 Technical Guidelines for Self monitoring of Sewage Discharge Units General
HJ 836 Determination of Low Concentration Particulate Matter in Exhaust Gas from Stationary Pollution Sources Gravimetric Method
HJ 944 Technical Specifications for Environmental Management Account and Discharge Permit Implementation Report of Pollutant Discharge Unit (Trial)
HJ 1006 Determination of volatile halogenated hydrocarbons in waste gas from fixed pollution sources Air bag sampling gas chromatography
HJ 1012 Technical Requirements and Detection Methods for Portable Monitors of Total Hydrocarbons, Methane and Non methane Hydrocarbons in Ambient Air and Waste Gas
HJ 1013 Technical Requirements and Detection Methods for Continuous Monitoring System of Non methane Hydrocarbons in Exhaust Gas from Fixed Pollution Sources
Measures for the Administration of Automatic Monitoring of Pollution Sources (Decree No. 28 of the State Environmental Protection Administration)
Measures for the Administration of Environmental Monitoring (Decree No. 39 of the State Environmental Protection Administration)
3 Terms and definitions
The following terms and definitions are applicable to this standard.
3.1 Paint, ink and adhesive industry Paint, ink and adhesive industry (C2641), ink and similar products manufacturing industry (C2642) and adhesive manufacturing industry specified in GB/T 4754-2017.
3.2 Paint manufacturing Production activities of adding pigment, solvent and auxiliary materials into natural resin or synthetic resin to make covering materials after processing, including the preparation of paint and its thinner, paint remover and other auxiliary materials.
3.3 Manufacture of ink and similar products is made by mixing and grinding pigments, binders (vegetable oil, mineral oil, resin, solvent) and fillers, which are used for printing, computer printing, duplicating machine ink and other production activities.
3.4 Manufacture of adhesives is the production activity of preparing adhesives (also known as adhesives) with adhesives as the main agent and VOCs online monitoring system cooperating with various curing agents, plasticizers, fillers, solvents, preservatives, stabilizers and coupling agents.
3.5 Volatile organic compounds (VOCs) are organic compounds involved in atmospheric photochemical reaction, or organic compounds determined according to relevant regulations. When characterizing the overall VOCs emissions, according to industry characteristics and environmental management requirements, total volatile organic compounds (TVOC) and non methane total hydrocarbons (NMHC) can be used as pollutant control items.
3.6 The total volatile organic compounds (TVOC) adopts the specified monitoring method to measure the individual VOCs in the exhaust gas, and add up to obtain the total amount of VOCs, which is calculated as the sum of the mass concentrations of individual VOCs. In actual work, individual VOCs accounting for more than 90% of the total amount shall be measured and summed up according to the expected analysis results.
3.7 Non methane hydrocarbons (NMHC) shall be monitored by the specified method. The total amount of gaseous organic compounds other than methane responsive to the hydrogen flame ionization detector shall be measured by the mass concentration of carbon.
3.8 Fugitive emission Irregular emission of atmospheric pollutants without passing through the exhaust funnel, including emission in open workplaces, and emission through gaps, vents, open doors and windows and similar openings (holes).
3.9 The state or mode of operation in which the close/closed pollutants do not contact the ambient air, or are isolated from the ambient air by sealing materials and sealing equipment.
3.10 Closed space refers to the closed area or closed building formed by using the complete enclosure structure to isolate pollutants, workplaces, etc. from the surrounding space. The doors, windows and other openings (holes) of the closed area or closed building shall be kept closed at any time except for personnel, vehicles, equipment, materials, and legally established exhaust stacks and vents.
3.11 VOCs Materials VOCs containing materials This standard refers to raw and auxiliary materials, products and wastes (slag and liquid) with VOCs accounting for 10% or more by mass, as well as organic polymer raw and auxiliary materials and wastes (slag and liquid). 3.12 Volatile organic liquid Any organic liquid that can release VOCs to the atmosphere and meets one of the following conditions: (1) single component organic liquid with a true vapor pressure greater than or equal to 0.3 kPa; (2) An organic liquid in which the proportion of the total mass of components with a true vapor pressure of 0.3 kPa or more is 20% or more.
3.13 True vapor pressure Saturated vapor pressure (absolute pressure) at the working (storage) temperature of organic liquid, or vapor pressure when the vaporization rate of organic mixture liquid is zero, also known as bubble point vapor pressure, can be converted according to the corresponding measurement methods such as GB/T 8017. Note: The operating (storage) temperature of organic liquids working (stored) at room temperature is calculated according to the maximum value of the annual monthly average temperature zui.
3.14 Immersed seal The edge seal of the liquid mounted seal floating roof is immersed in the liquid level of stored materials, also known as liquid inlaid seal.
3.15 Mechanical shoe seal A type of seal in which the metal sheet is vertically pressed against the tank wall by springs or counterweight levers.
3.16 Double seals A double seal is set between the edge of the floating roof and the inner wall of the tank, which is also called double seal. The lower seal is called primary seal, and the upper seal is called secondary seal.
3.17 Vapor balancing system A gas connection and balancing system set between loading facilities and storage tanks or between storage tanks.
3.18 Existing enterprise Existing facility The coating, printing ink and adhesive industrial enterprises or production facilities that have been built and put into operation or the environmental impact assessment documents have been approved before the implementation date of this standard.
3.19 New facility: New, reconstructed and expanded coating, printing ink and adhesive industrial construction projects approved by the environmental impact assessment document since the implementation date of this standard.
3.20 Key regions According to the requirements of environmental protection, key regions need to strictly control the emission of air pollutants in areas with serious air pollution, fragile ecological environment, or the need for further improvement of ambient air quality.
3.21 Standard state The state when the temperature is 273.15 K and the pressure is 101.325 kPa. The emission concentration limits of air pollutants specified in this standard are based on dry gases under standard conditions.
3.22 The stack height is the height from the ground plane where the exhaust funnel (or its main building structure) is located to the outlet of the exhaust funnel, in m.
3.23 Enterprise boundary. If it is difficult to determine the legal boundary, it refers to the actual occupied boundary of the enterprise or production facilities.
4 Requirements for organized emission control
4.1 From July 1, 2019 for new enterprises, and from July 1, 2020 for existing enterprises, the emission limits of air pollutants and other pollution control requirements specified in Table 1 shall be implemented.
4.2 Enterprises in key areas shall implement the special emission limits of air pollutants and other pollution control requirements specified in Table 2, and the regional scope and time of implementation shall be specified by the competent department of ecological environment under the State Council or the provincial people's government.
4.3 When the initial emission rate of NMHC in the workshop or production facility exhaust is ≥ 3 kg/h, VOCs treatment facilities shall be configured, and the treatment efficiency shall not be less than 80%. For key areas, when the initial emission rate of NMHC in the exhaust of workshops or production facilities is ≥ 2 kg/h, VOCs treatment facilities should be configured, and the treatment efficiency should not be less than 80%.
4.4 The waste gas collection and treatment system shall operate synchronously with the production process equipment. In case of failure or maintenance of waste gas collection and treatment system, the corresponding production process equipment shall be stopped and put into use synchronously after maintenance; If the production process equipment cannot be stopped or cannot be stopped in time, the waste gas emergency treatment facilities shall be set up or other alternative measures shall be taken.
4.5 VOCs combustion (incineration, oxidation) device shall not only meet the emission requirements of air pollutants in Table 1 or Table 2, but also control sulfur dioxide, nitrogen oxides and dioxins in the discharged flue gas to reach the limits specified in Table 3. If boilers, industrial furnaces and solid waste incinerators are used to incinerate organic waste gas, the control requirements of corresponding emission standards shall also be met.
4.6 If the exhaust gas entering the VOCs combustion (incineration, oxidation) device needs to be supplemented with air for combustion and oxidation reaction, the measured emission concentration of air pollutants in the exhaust funnel shall be converted into the standard emission concentration of air pollutants with a reference oxygen content of 3% according to Formula (1). If boilers, industrial furnaces and solid waste incinerators are used to incinerate organic waste gas, the reference oxygen content of flue gas shall be subject to the emission standards.
The oxygen content of the waste gas entering the VOCs combustion (incineration, oxidation) device can meet the needs of its own combustion and oxidation reaction. If no additional air is needed (except for the burners that need additional air to support combustion), the measured mass concentration shall be used as the basis for the determination of compliance. However, the oxygen content of the flue gas at the outlet of the device shall not be higher than the oxygen content of the exhaust gas at the inlet of the device. Adsorption, absorption, condensation, biology, membrane separation and other VOCs treatment facilities shall take the measured mass concentration as the criterion for reaching the standard, and shall not be diluted for emission.
4.7 The height of the exhaust funnel shall not be less than 15m (except for safety considerations or special process requirements). The specific height and the relative height relationship with surrounding buildings shall be determined according to the environmental impact assessment document.
4.8 When the exhaust gas with different emission control requirements is combined with the exhaust funnel for emission, it shall be monitored before the exhaust gas is mixed, and the corresponding emission control requirements shall be implemented; If the optional monitoring position can only monitor the mixed exhaust gas, the strict provisions of zui in the emission control requirements shall be followed.
5 Requirements for unorganized emission control
5.1 Implementation scope and time
5.1.1 From July 1, 2019 for new enterprises and July 1, 2020 for existing enterprises, unorganized emission control shall be implemented in accordance with the provisions of this standard.
5.1.2 Enterprises in key areas shall implement the special control requirements for unorganized emissions. The scope and time of implementation shall be specified by the competent department of ecological environment under the State Council or the provincial people's government.
5.2 Requirements for unorganized emission control of VOCs storage
5.2.1 Except for volatile organic liquid storage tank, the unorganized emission control requirements for VOCs storage in paint, ink and adhesive enterprises shall comply with GB 37822.
5.2.2 Control requirements for volatile organic liquid storage tank
5.2.2.1 Low pressure tank, pressure tank or other equivalent measures shall be adopted to store volatile organic liquid tanks with real vapor pressure ≥ 76.6 kPa.
5.2.2.2 The storage tank for volatile organic liquid with the true vapor pressure ≥ 10.3 kPa but ＜ 76.6 kPa and the storage tank volume ≥ 30 m3 shall meet one of the following requirements:
a) Floating roof tank is adopted. For internal floating roof tanks, immersion seal, mechanical shoe seal and other efficient sealing methods shall be used between the floating roof and the tank wall; For external floating roof tanks, double sealing shall be adopted between the floating roof and the tank wall, and the primary sealing shall adopt efficient sealing methods such as immersion seal, mechanical shoe seal, etc.
b) Fixed roof tanks shall be used, and the exhaust gas shall be collected and treated to meet the requirements in Table 1 and Table 3, or the treatment efficiency shall not be less than 80%.
c) Gas phase balance system is adopted.
d) Take other equivalent measures.
