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GB 39727-2020 English PDF

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GB 39727-2020: (Emission Standard of Air Pollutants for Pesticide Manufacturing Industry)
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GB 39727-2020English419 Add to Cart 4 days [Need to translate] (Emission Standard of Air Pollutants for Pesticide Manufacturing Industry) Valid GB 39727-2020

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GB 37822   GB 37824   GB 31570   GB 39728   GB 39726   

Basic data

Standard ID GB 39727-2020 (GB39727-2020)
Description (Translated English) (Emission Standard of Air Pollutants for Pesticide Manufacturing Industry)
Sector / Industry National Standard
Classification of Chinese Standard Z60
Word Count Estimation 20,257
Date of Issue 2020-12-24
Date of Implementation 2021-01-01
Regulation (derived from) Ministry of Ecology and Environment Announcement No. 71 of 2020; National Standard Announcement No. 31 of 2020
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB 39727-2020: (Emission Standard of Air Pollutants for Pesticide Manufacturing Industry)

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Emission Standard of Air Pollutants for Pesticide Manufacturing Industry) release Ministry of Ecology and Environment State Administration for Market Regulation 2021-01-01 Implemented 2020-12-08 Released National Standards of People's Republic of China ICS13.040.40 Z 60 Air Pollutant Emission Standard for Pesticide Manufacturing Industry Emission standard of air pollutants for pesticide industry I directory Preface...II 1 Scope...1 2 Normative references...1 3 Terms and Definitions...2 4 Organised emission control requirements...5 5 Requirements for fugitive emission control...7 6 Requirements for monitoring pollutants at the boundary of enterprises...11 7 Pollutant monitoring requirements...11 8 Implementation and Supervision...13 Appendix A (Informative Appendix) Common Pesticide Intermediates...14 Appendix B (Informative Appendix) Typical Air Pollutants Emitted by Pesticide Manufacturing Industry...15 Appendix C (Informative Appendix) Monitoring Requirements for Unorganized Emissions of VOCs in the Plant...17

1 Emission standards for air pollutants in the pesticide manufacturing industry

1 Scope of application

This standard specifies the air pollutant emission control requirements, monitoring and supervision and management requirements for the pesticide manufacturing industry. This standard is applicable to the management of air pollutant emissions of existing pesticide manufacturing industrial enterprises or production facilities, as well as the Environmental impact assessment of industrial construction projects, design of environmental protection facilities, completed environmental protection acceptance, issuance of pollutant discharge permits and their investment Postpartum air pollutant emission management. This standard also applies to pesticide intermediate enterprises and their production facilities for pesticide production, as well as pesticide research and development institutions and their experiments Air Pollutant Emission Management of Facilities.

2 Normative references

This standard refers to the following documents or clauses thereof. For dated references, only the dated version applies this standard. For undated references, the latest edition (including all amendments) applies to this standard. GB 37822 Volatile organic compound fugitive emission control standard GB/T 4754-2017 National Economic Industry Classification GB/T 8017 Determination of vapor pressure of petroleum products Reid method GB/T 14669 Determination of Air Quality Ammonia Ion Selective Electrode Method GB/T 14678 Determination of air quality hydrogen sulfide, methyl mercaptan, methyl sulfide and dimethyl disulfide gas chromatography GB/T 15516 Determination of Air Quality Formaldehyde Acetylacetone Spectrophotometry GB/T 16157 Determination of particulate matter in exhaust gas from stationary pollution sources and sampling methods for gaseous pollutants HJ/T 27 Determination of Hydrogen Chloride in Exhaust from Stationary Pollution Source Mercury Thiocyanate Spectrophotometry HJ/T 28 Determination of hydrogen cyanide in exhaust gas from stationary pollution sources Isonicotinic acid-pyrazolone spectrophotometry HJ/T 30 Determination of Chlorine in Exhaust Gas from Stationary Pollution Source Methyl Orange Spectrophotometry HJ/T 31 Determination of Phosgene in Exhaust from Stationary Pollution Source Aniline UV Spectrophotometry HJ/T 32 Determination of Phenolic Compounds in Exhaust from Stationary Pollution Sources 4-Aminoantipyrine Spectrophotometry HJ/T 37 Determination of acrylonitrile in exhaust gas from stationary pollution sources by gas chromatography HJ 38 Determination of total hydrocarbons, methane and non-methane total hydrocarbons in waste gas from stationary pollution sources by gas chromatography HJ/T 42 Determination of nitrogen oxides in exhaust gas from stationary pollution sources by UV spectrophotometry HJ/T 43 Determination of nitrogen oxides in exhaust gas from stationary pollution sources - Naphthalene ethylenediamine hydrochloride spectrophotometric method HJ/T 55 Technical guidelines for monitoring fugitive emissions of air pollutants HJ/T 56 Determination of sulfur dioxide in exhaust gas from stationary pollution sources by iodometric method HJ 57 Determination of Sulfur Dioxide in Waste Gas from Stationary Pollution Source Constant Potential Electrolysis HJ 75 Technical Specification for Continuous Monitoring of Flue Gas (SO2, NOx, Particulate Matter) Emissions from Stationary Pollution Sources HJ 77.2 Determination of Dioxins in Ambient Air and Exhaust Gas Isotope Dilution High Resolution Gas Chromatography-High Resolution Mass Spectrometry HJ/T 397 Technical Specification for Stationary Source Waste Gas Monitoring HJ 533 Determination of Ammonia in Ambient Air and Waste Gas by Nessler Reagent Spectrophotometry 2HJ 547 Determination of chlorine gas in stationary pollution source waste gas by iodometric method HJ 548 Determination of hydrogen chloride in waste gas from stationary pollution sources Silver nitrate volumetric method HJ 549 Determination of hydrogen chloride in ambient air and exhaust gas by ion chromatography HJ 583 Determination of Benzenes in Ambient Air Solid Adsorption/Thermal Desorption-Gas Chromatography HJ 584 Determination of Benzenes in Ambient Air Activated Carbon Adsorption/Carbon Disulfide Desorption-Gas Chromatography HJ 604 Determination of Total Hydrocarbons, Methane and Non-Methane Total Hydrocarbons in Ambient Air Direct Injection-Gas Chromatography HJ 629 Determination of Sulfur Dioxide in Exhaust Gas from Stationary Pollution Source 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 Determination of aldehydes and ketones in ambient air by high performance liquid chromatography HJ 688 Determination of hydrogen fluoride in waste gas from stationary pollution sources by ion chromatography HJ 692 Non-dispersive infrared absorption method for the determination of nitrogen oxides in waste gas from stationary pollution sources HJ 693 Determination of nitrogen oxides in waste gas from stationary pollution sources by constant potential electrolysis HJ 732 Sampling air bag method for volatile organic compounds in waste gas from stationary 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 Ambient Air Volatile Organic Compounds Canister Sampling/Gas Chromatography-Mass Spectrometry HJ 836 Gravimetric Method for Determination of Low-Concentration Particulate Matter in Exhaust Gas from Stationary Pollution Sources HJ 944 General Principles of Technical Specifications for Environmental Management Ledger and Pollution Permit Implementation Report of Pollutant Discharging Units (Trial) HJ 987 Technical Guidelines for Self-Monitoring of Pollutant Discharging Units Pesticide Manufacturing Industry HJ 1079 Determination of chlorobenzene compounds in waste gas from stationary pollution sources by gas chromatography HJ 1131 Portable UV Absorption Method for Determination of Sulfur Dioxide in Waste Gas from Stationary Pollution Sources HJ 1132 Portable UV Absorption Method for Determination of Nitrogen Oxides in Exhaust Gas from Stationary Pollution Sources "Administrative Measures for Automatic Monitoring of Pollution Sources" (Order No. 28 of the State Environmental Protection Administration) Measures for the Administration of Environmental Monitoring (Order No. 39 of the State Environmental Protection Administration) "Technical Guidelines for Continuous Monitoring of Non-methane Total Hydrocarbon Emissions in Exhaust Gas from Stationary Pollution Sources (Trial)" (Monitoring Letter from the Environmental Protection Office [2020]) 90)

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Pesticide industry Pesticide manufacturing industry (C263) specified in GB/T 4754-2017, including chemical pesticide manufacturing (C2631) and biochemical Pesticide and Microbial Pesticide Manufacturing (C2632). The pesticide manufacturing process includes pesticide intermediate manufacturing, technical drug manufacturing, and preparation processing with compounding. 3.2 pesticide intermediates For compounds that are specially used for the synthesis of pesticide technical materials, or are mainly used for the synthesis of pesticide technical materials, please refer to Appendix A. 33.3 volatile organic compounds (VOCs) Organic compounds participating in atmospheric photochemical reactions, or organic compounds determined according to relevant regulations. When characterizing the overall emission of VOCs, according to industry characteristics and environmental management requirements, total volatile organic compounds (with TVOC), non-methane total hydrocarbons (NMHC) as pollutant control items. 3.4 total volatile organic compounds (TVOC) Using the specified monitoring method, measure the single VOCs substances in the exhaust gas, add them to get the total amount of VOCs substances, Calculated as the sum of the mass concentrations of individual VOCs. In actual work, the results should be analyzed as expected, and more than 90% of the total Single VOCs substances are measured and summed. 3.5 non-methane hydrocarbons (NMHC) Using the specified monitoring method, the sum of the gaseous organic compounds other than methane for which the hydrogen flame ionization detector responds, In terms of carbon mass concentration. 3.6 process vents Waste gas emitted during pesticide production, including materials preparation, reaction, fermentation, refining, solvent recovery, separation, drying, etc. Process exhaust, as well as auxiliary equipment such as vacuum pump exhaust. 3.7 tail gas from fermentation In the production of biochemical pesticides and microbial pesticides by fermentation, the waste gas containing biological metabolites discharged from the microbial fermentation tank, It also includes contaminant-containing steam discharged during the cleaning and sterilization of the fermenter. 3.8 fugitive emission Irregular discharge of air pollutants without passing through the exhaust stack, including the escape of open workplaces, and through crevices, ventilation openings, open doors and windows, and similar openings (holes) discharges, etc. 3.9 airtight closed/close Contaminants are not in contact with the ambient air, or are isolated from the ambient air by sealing materials or sealing equipment Mode. 3.10 closed space A closed area or closed area formed by blocking pollutants, workplaces, etc. from the surrounding space with a complete enclosure structure 4 buildings. Except for personnel, vehicles, equipment and materials entering and leaving the enclosed area or enclosed building, and the exhaust gas established by law In addition to cylinders and vents, doors, windows and other openings (holes) should be kept closed at all times. 3.11 VOCs-containing materials Raw and auxiliary materials, products and wastes (slag, liquid) with a mass proportion of VOCs greater than or equal to 10%, as well as raw and auxiliary organic polymers Materials and waste (slag, liquid). 3.12 volatile organic liquid Any organic liquid capable of releasing VOCs into the atmosphere that meets one of the following conditions. (1) A single-component organic liquid with a true vapor pressure greater than or equal to 0.3 kPa; (2) In the mixture, the total mass of the components with a true vapor pressure of 0.3 kPa or more accounts for more than or equal to 20% of the organic liquid. 3.13 true vapor pressure The saturated vapor pressure (absolute pressure) at the working (storage) temperature of the organic liquid, or the vaporization rate of the organic mixture liquid The vapor pressure at zero time, also known as the bubble point vapor pressure, can be converted according to the corresponding measurement methods such as GB/T 8017. Note. For organic liquids working (storing) at room temperature, the working (storing) temperature is calculated based on the maximum monthly average temperature throughout the year. 3.14 liquid-mounted seal The sealing form of the edge seal of the floating plate of the storage tank is immersed in the liquid surface of the stored material, also known as the liquid inlaid seal. 3.15 mechanical shoe seal A form of sealing in which the metal sheet is pressed vertically against the tank wall by a spring or a counterweight lever. 3.16 double seals A two-layer seal is provided between the edge of the floating plate of the storage tank and the inner wall of the storage tank, also known as double-sealed seal. The lower seal is called a Secondary sealing, the upper sealing is called secondary sealing. 3.17 vapor balancing system A gas communication and balance system provided between the loading facility and the storage tank or between the storage tank and the storage tank. 3.18 open recirculating cooling water system A circulating cooling water system in which the circulating cooling water is in direct contact with the atmosphere to dissipate heat. 3.19 Existing enterprise existing facility Pesticide manufacturing industrial enterprises or production enterprises that have been completed and put into production or whose environmental impact assessment documents have been approved before the date of implementation of this standard facility. 3.20 New enterprise new facility The new construction, reconstruction and expansion of pesticide industry construction projects that have passed the approval of the environmental impact assessment documents from the date of implementation of this standard. 3.21 key regions According to the requirements of environmental protection work, the air pollution is serious, or the ecological environment is fragile, or there is further improvement in ambient air quality. areas that need to strictly control the emission of air pollutants. 3.22 standard state The state when the temperature is 273.15 K and the pressure is 101.325 kPa. The air pollutant emission concentration limits specified in this standard are all Based on dry gas in standard state. 3.23 stack height The height from the ground plane where the exhaust pipe (or its main building structure) is located to the outlet of the exhaust pipe, in m. 3.24 enterprise boundary Legal boundaries of a business or production facility. If it is difficult to determine the legal boundary, it refers to the actual land occupation boundary of the enterprise or production facility.

4 Organised emission control requirements

4.1 From January 1, 2021, newly-built enterprises, and existing enterprises from January 1, 2023, shall implement the air pollution regulations specified in Table 1. Dye emission limits and other pollution control requirements. 4.2 If the initial emission rate of NMHC in the exhaust of workshop or production facility is ≥3 kg/h, the treatment efficiency of VOCs treatment facility shall not be below 80%. For key areas, where the initial emission rate of NMHC in the exhaust of workshops or production facilities is ≥2 kg/h, the VOCs The treatment efficiency of the treatment facility should not be less than 80%. 4.3 The waste gas collection and treatment system should run synchronously with the production process equipment. When the exhaust gas collection and treatment system fails or is repaired, The corresponding production process equipment should be stopped, and put into use synchronously after troubleshooting or maintenance is completed; the production process equipment cannot be stopped. If the operation is stopped or cannot be stopped in time, emergency treatment facilities for waste gas should be set up or other alternative measures should be taken. 4.4 In addition to meeting the air pollutant emission requirements in Table 1, the VOCs combustion (incineration, oxidation) device also needs to The sulfur dioxide, nitrogen oxides and dioxins are controlled to the limits specified in Table 2.Utilize boilers, industrial furnaces, solid If the organic waste gas is incinerated by the waste incinerator, it should also meet the control requirements of the corresponding emission standards. 74.5 If the exhaust gas entering the VOCs combustion (incineration, oxidation) device needs supplementary air for combustion and oxidation reaction, the exhaust pipe shall be The measured air pollutant emission concentration should be converted into the air pollutant emission concentration with a reference oxygen content of 3% according to formula (1). If the organic waste gas is incinerated by boilers, industrial furnaces or solid waste incinerators, the basic oxygen content of flue gas shall be in accordance with its emission standards. will be implemented. The oxygen content of the exhaust gas entering the VOCs combustion (incineration, oxidation) device can meet the self-combustion and oxidation reactions, without the need for additional Supplementary air (except for the burner that needs supplementary air to support combustion), the measured mass concentration shall be used as the basis for determining the compliance, but the device The oxygen content of the flue gas at the outlet shall not be higher than the oxygen content of the exhaust gas at the inlet of the device. For other VOCs treatment facilities such as adsorption, absorption, condensation, biology, membrane separation, etc., the measured mass concentration is used as the standard judgment Basis, shall not be diluted to discharge. 4.6 The exhaust gas discharged from the spray drying tower shall comply with the requirements of Table 1 and Table 2, and the measured emission concentration of air pollutants shall be converted according to formula (1). The benchmark emission concentration of air pollutants with a benchmark oxygen content of 18% is used as the basis for judging compliance. 4.7 The height of the exhaust pipe that discharges chlorine, hydrogen cyanide and phosgene shall not be less than 25 m, and the height of other exhaust pipes shall not be less than 15 m (due to safety reasons). The specific height and the relative height relationship with the surrounding buildings should be based on the environmental impact Response evaluation document is confirmed. 4.8 When implementing the exhaust gas combined exhaust pipe discharge with different emission control requirements, it should be monitored before the exhaust gas is mixed, and the relevant measures should be carried out. If the optional monitoring position can only monitor the mixed exhaust gas, the emission control requirements should be The strictest regulations in the request are enforced.

5 Requirements for fugitive emission control

5.1 Scope and time of execution 5.1.1 From January 1, 2021 for newly-built enterprises, and from January 1, 2023 for existing enterprises, fugitive emission control shall be carried out in accordance with The provisions of this standard shall be implemented. 5.1.2 Enterprises in key areas implement special control requirements for fugitive emissions. The geographical scope and time of implementation are determined by the State Council's Ecological regulations of the competent authorities. If the competent department of ecology and environment under the State Council has not made a provision, the provincial people's government may prescribe the implementation of the area within its jurisdiction. Domain range and time. 5.2 VOCs material storage fugitive emission control requirements 5.2.1 Basic requirements Except for volatile organic liquid storage tanks, the requirements for fugitive emission control of VOCs material storage in pesticide manufacturing enterprises should comply with GB 837822. 5.2.2 Requirements for the control of volatile organic liquid storage tanks 5.2.2.1 Storage tanks for volatile organic liquids with a true vapor pressure of ≥76.6 kPa shall use low-pressure tanks, pressure tanks or other tanks. effective measures. 5.2.2.2 Storage tanks for volatile organic liquids with real vapor pressure ≥ 10.3 kPa but < 76.6 kPa and storage tank volume ≥ 30 m3, Should meet one of the following requirements. a) Use floating roof tanks. For internal floating roof tanks, liquid immersion seals, mechanical shoe seals, etc. should be used between the floating plate and the tank wall. Efficient sealing method; for external floating roof tanks, double sealing should be used between the floating plate and the tank wall, and the primary sealing should be High-efficiency sealing methods such as liquid immersion seal and mechanical shoe seal. b) If a fixed roof tank is used, the exhaust gas should be collected and treated and meet the requirements of Table 1 and Table 2, or the treatment efficiency should not be lower than 80%. c) Adopt gas phase equilibrium system. d) take other equivalent measures. 5.2.3 Special control requirements for volatile organic liquid storage tanks 5.2.3.1 Storage tanks for volatile organic liquids with real vapor pressure ≥ 76.6 kPa shall use low-pressure tanks, pressure tanks or other tanks. effective measures. 5.2.3.2 Storage tanks for volatile organic liquids with real vapor pressure ≥ 10.3 kPa but < 76.6 kPa and storage tank volume ≥ 20 m3, And storage tanks for volatile organic liquids with real vapor pressure ≥0.7 kPa but < 10.3 kPa and storage tank volume ≥30 m3, shall comply with One of the following requirements. a) Use floating roof tanks. For internal floating roof tanks, liquid immersion seals, mechanical shoe seals, etc. should be used between the floating plate and the tank wall. Efficient sealing method; for external floating roof tanks, double sealing should be used between the floating plate and the tank wall, and the primary sealing should be High-efficiency sealing methods such as liquid immersion seal and mechanical shoe seal. b) If a fixed roof tank is used, the exhaust gas should be collected and treated and meet the requirements of Table 1 and Table 2, or the treatment efficiency should not be lower than 90%; c) adopt the gas phase equilibrium system; d) take other equivalent measures. 5.2.4 Requirements for operation and maintenance of volatile organic liquid storage tanks 5.2.4.1 Floating roof tank operation requirements 5.2.4.1.1 The tank body should be kept in good condition and should not have holes (except ventilation holes) and cracks. 5.2.4.1.2 The openings (holes) of the accessories of the floating plate shall be closed except for sampling, measurement, routine inspection, maintenance and other normal activities; There should be no breakage of the edge seal of the floating pan. 5.2.4.1.3 When storage tank accessories such as pillars and guides pass through the floating plate, the bottom end of the sleeve shall be inserted into the stored material and sealed. measure. 5.2.4.1.4 Except for tank emptying operations, the floating pan should always float on the surface of the stored material. 5.2.4.1.5 The automatic ventilation valve shall be closed and well sealed when the floating plate is in the floating state, and only when the floating plate is in the supporting state It can be turned on at 9 o'clock. 5.2.4.1.6 The edge breathing valve shall be well sealed when the floating plate is in a floating state, and regularly check whether the constant pressure meets the set requirements. begging. 5.2.4.1.7 Except for the automatic ventilation valve and the edge breathing valve, the outer edge plate of the floating plate and all the opening pipes passing through the floating plate shall be immersed. Store material below the liquid level. 5.2.4.2 Operational requirements for fixed-roof tanks 5.2.4.2.1 The tank body should be kept in good condition and should not have holes and cracks. 5.2.4.2.2 The openings (holes) of storage tank accessories shall be closed except for sampling, measurement, routine inspection, maintenance and other normal activities. 5.2.4.2.3 Regularly check whether the constant pressure of the breathing valve meets the set requirements. 5.2.4.3 Tank Maintenance Requirements 5.2.4.3.1 If the external floating roof tank does not meet the requirements of Article 5.2.4.1 and the fixed roof tank does not meet the requirements of Article 5.2.4.2, the repair shall be completed within 90 days. Rehabilitate or empty the storage tank and stop using it; if the repair or emptying of the storage tank is delayed, the relevant plan should be reported to the competent ecological environment department for confirmation. 5.2.4.3.2 The integrity of the inner floating roof tank shall be inspected during each shutdown and maintenance period. If it is found that it does not meet the requirements of Article 5.2.4.1, The restoration should be completed during the shutdown period; if the restoration is delayed, the relevant plan should be reported to the competent department of ecological environment for confirmation. 5.2.3.4.3 Prepare inspection and repair records and keep them for at least 3 years. 5.3 VOCs material transfer and transportation fugitive emission control requirements The control requirements for unorganized emission control of VOCs material transfer and transportation in pesticide manufacturing enterprises shall comply with the provisions of GB 37822. 5.4 VOCs fugitive emission control requirements in the process 5.4.1 Process control requirements 5.4.1.1 Dosing and discharging of VOCs materials, batching, mixing, stirring, chemical synthesis, fermentation culture, centrifugation, filtration, Processes such as washing, distillation/rectification, extraction/extraction, crystallization, precipitation, concentration, drying, filling/sub-packaging, etc. When operating in a confined space, the exhaust gas should be discharged to the exhaust gas collection and treatment system; if it cannot be sealed, local gas collection measures should be taken. The exhaust gas should be discharged to the exhaust gas collection and treatment system. 5.4.1.2 The vacuum system should use a dry vacuum pump, and the vacuum exhaust should be discharged to the VOCs waste gas collection and treatment system. Use a liquid ring (water Ring) vacuum pump, water (water vapor) jet vacuum pump and other equipment, the circulating tank (tank) of the working medium should be sealed, vacuum exhaust, The exhaust gas of the circulating tank (tank) should be discharged to the VOCs exhaust gas collection and treatment system. 5...

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