(1) This technical policy is formulated to implement the Environmental Protection Law of People's Republic of China (PRC), the Air Pollution Prevention Law of People's Republic of China (PRC) and other laws and regulations, prevent and control environmental pollution, ensure ecological safety and human health, and promote the technical progress of volatile organic compounds pollution prevention and control.
(2) This technical policy is a guiding document for all relevant units to refer to in environmental protection work.
(III) This technical policy puts forward pollution prevention strategies and methods for VOCs-containing materials and products in the process of production, storage, transportation, sale, use and consumption. VOCs come from a wide range of sources, and the main pollution sources include industrial sources and domestic sources.
Industrial sources mainly include oil refining, petrochemical industry, coal processing and conversion and other VOCs-containing raw material production industries, and the storage, transportation and sales process of oil products (fuels, solvents, etc.). ), paint, ink, adhesives, pesticides and other production industries with VOCs as raw materials, as well as the use process of products containing VOCs such as paint, printing, bonding and industrial cleaning. Living sources include building decoration, catering service and dry cleaning of clothes.
The prevention and control of VOCs pollution from oil and gas exploitation, pharmaceutical industry and motor vehicles can refer to the corresponding pollution prevention and control technical policies respectively.
The prevention and control of VOCs pollution should follow the comprehensive prevention and control principle of combining source and process control with terminal treatment. Adopt cleaner production technology in industrial production, strictly control the VOCs emission of raw materials and products containing VOCs during production, storage, transportation and marketing, and encourage the recycling of resources and energy; Encourage the use of alternative products without VOCs or products with low VOCs content in production and life.
(5) By actively conducting a survey of VOCs, compiling and revising the VOCs emission standards and management systems of key industries, strengthening the monitoring and management of VOCs, promoting the use of environmental labeling products, and basically establishing a VOCs pollution prevention and control system in key areas by 20 15; By 2020, VOCs will be basically reduced in the whole process from raw materials to products and from production to consumption.
Second, the source and process control
(six) in the petroleum refining and petrochemical industries, encourage the use of advanced cleaner production technology, improve the efficiency of crude oil conversion and utilization. Technical measures to prevent and control VOCs-containing waste gas pollution from equipment and pipeline components, process waste gas, waste gas burning tower (torch) and waste water treatment include:
1. Make LDAR (LDAR) plan for pumps, compressors, valves, flanges and other equipment and pipeline components that are prone to leakage, check them regularly and repair them in time to prevent or reduce leakage;
2. The process waste gas containing VOCs discharged from production devices should be recycled first, and those that cannot (or cannot) be recycled should be treated and discharged up to standard; In case of emergency, vent gas can be introduced into the combustion tower (torch) and discharged after full combustion;
3. The VOCs-containing waste gas generated in the process of wastewater collection and treatment is discharged up to standard after collection and treatment.
(VII) In the coal processing and transformation industry, we should encourage the adoption of advanced cleaner production technology to realize efficient and clean transformation of coal, focus on identifying and investigating the prone parts of VOCs leakage in process devices and pipeline components, and formulate measures to prevent VOCs leakage and respond to emergencies.
(8) The technical measures to prevent and control VOCs pollution during the storage, transportation and sales of oil products (fuels and solvents) include:
1. Oil storage tanks, gas stations and tankers should be equipped with corresponding oil and gas collection systems, and oil storage tanks and gas stations should be equipped with corresponding oil and gas recovery systems;
2. Oil (fuel oil, solvent, etc. ) The storage tank shall adopt high-efficiency sealed inner (outer) floating roof storage tank. When the fixed roof storage tank is used, the gas containing VOCs will be transported to the recovery equipment through the closed exhaust system;
3. Volatile organic compounds emitted by oil (fuel, solvent, etc.). Vehicles (car tankers, railway tankers, oil tankers, etc.). ) is collected and transported to the recovery equipment in a sealed manner during the loading process, and can also be returned to the storage tank or sent to the gas pipeline network.
(9) Technical measures to prevent and control VOCs pollution in paint, ink, adhesive, pesticide and other production industries with VOCs as raw materials include:
1. Encourage the production and sale of water-based, non-organic and low-organic solvent-based coatings, inks and adhesives that meet the technical requirements of environmentally-friendly products;
2 to encourage the use of closed integrated production technology, and the waste gas generated in the production process will be collected for post-treatment.
(10) Technical measures to prevent and control VOCs pollution in the use of products containing VOCs such as paint, printing, bonding and industrial cleaning include:
1. Encourage the use of environmentally-friendly paints, inks, adhesives and cleaning agents that have passed the certification of environmentally-friendly products;
2. According to the different coating processes, encourage the use of water-based coatings, high-solid coatings, powder coatings, ultraviolet curing (UV) coatings and other environmental protection coatings; Promote the use of electrostatic spraying, flow coating, roll coating, dip coating and other efficient coating processes; Open-air spraying operation without VOCs purification and recovery measures should be avoided as far as possible;
3. Promote the use of water-based ink in the printing process, encourage the use of ultraviolet curing (UV) ink in the tin printing and can making industries, and encourage the use of pre-coating film technology in the book printing industry;
4. Encourage the use of water-based and hot-melt environmentally-friendly adhesives in the bonding process of wood-based panels, footwear, leather products and packaging materials, and promote solvent-free compounding and * * * extrusion compounding technologies in the production of composite films;
5. Eliminate the production processes that use trifluorotrichloroethane, methyl chloroform and carbon tetrachloride as cleaning agents or solvents. The waste solvent generated in the cleaning process should be collected in a sealed way, the waste solvent with recycling value should be treated and reused, and other waste solvents should be properly disposed of;
6. During the use of VOCs-containing products, waste gas collection measures should be taken to improve the efficiency of waste gas collection, reduce the unorganized emission and escape of waste gas, and recycle or treat the collected waste gas and discharge it up to standard.
(eleven) technical measures for the prevention and control of VOCs pollution from living sources such as building decoration, clothing dry cleaning and lampblack include:
1. Promote the use of architectural coatings, low organic solvent-based wood coatings and adhesives that meet the technical requirements of environmentally-friendly products in the architectural decoration industry, and gradually reduce the use of organic solvent-based coatings;
2. In the clothing dry cleaning industry, we should eliminate the production and use of open dry cleaning machines, promote the use of closed dry cleaning machines equipped with compressor refrigeration solvent recovery system, and encourage the use of dry cleaning machines equipped with activated carbon adsorption devices;
3. Encourage the catering service industry to use clean energy such as pipeline gas, natural gas and electricity; Advocate a diet with low oil smoke, low pollution and low energy consumption.
Third, terminal processing and comprehensive utilization.
(twelve) to encourage the recycling of volatile organic compounds in the industrial production process, and give priority to encouraging the recycling in the production system.
(13) For the waste gas containing high concentration of VOCs, condensation recovery and adsorption recovery technologies should be given priority for recycling, and other treatment technologies should be supplemented to achieve the standard discharge.
(14) For the waste gas with medium concentration of VOCs, adsorption technology can be used to recover organic solvents, or catalytic combustion and thermal incineration technology can be used to purify and discharge them. When catalytic combustion and thermal incineration technology are used for purification, waste heat should be recovered.
(15) For waste gas containing low concentration of VOCs, adsorption technology and absorption technology can be used to recover organic solvents, and when there is recovery value, it can be discharged up to standard; When it is not suitable for recycling, adsorption concentration combustion technology, biotechnology, absorption technology, plasma technology or advanced ultraviolet oxidation technology can be used for purification and discharge.
(16) The waste gas containing organic halogen component VOCs should be treated by non-incineration technology.
(seventeen) the source of malodorous gas pollution can be purified by biotechnology, plasma technology, adsorption technology, absorption technology, advanced ultraviolet oxidation technology or combined technology. The purified malodorous gas should not only meet the discharge standard, but also be discharged at high altitude to avoid disturbing people.
(eighteen) to promote the use of oil fume exhaust devices with oil mist recovery function in the catering service industry, and to transform them according to the scale, site and climatic conditions. , using high-efficiency fume and VOCs purification device, after purification, it reaches the standard.
(nineteen) strictly control the secondary pollution produced in the process of VOCs treatment. Inorganic waste gas containing sulfur, nitrogen and chlorine generated in the process of catalytic combustion and thermal incineration, and organic waste water generated in the process of adsorption, absorption, condensation and biological treatment should be treated and discharged up to standard.
(20) Non-renewable purification materials such as filter materials, adsorbents and catalysts shall be treated and disposed of in accordance with the relevant provisions of the state on solid waste management.
Four, encourage research and development of new technologies, new materials and new equipment.
Encourage the development and popularization of the following new technologies, materials and equipment:
(twenty-one) clean production technology that can reduce the formation and volatilization of VOCs in industrial production.
(22) Rotating molecular sieve adsorption concentration technology, high-efficiency regenerative catalytic combustion technology (RCO) and regenerative thermal combustion technology (RTO), nitrogen cycle desorption adsorption recovery technology, high-efficiency water-based enhanced absorption technology and other biological purification technologies and low-temperature plasma purification technologies for specific organic pollutants.
(twenty-three) high-efficiency adsorption materials (such as special activated carbon, high-strength activated carbon fiber, modified hydrophobic molecular sieve and silica gel, etc.), catalytic materials (such as broad-spectrum VOCs oxidation catalyst, etc.). ), efficient biological fillers and adsorbents, etc.
(twenty-four) volatile organic compounds recovery and comprehensive utilization equipment.
Verb (abbreviation for verb) operation and monitoring
(twenty-five) to encourage enterprises to carry out VOCs monitoring, and timely submit the monitoring results to the local environmental protection administrative department.
(26) The enterprise shall establish and improve the daily management system such as operation and maintenance procedures and accounting of VOCs treatment facilities, and regularly maintain all kinds of equipment, electrical appliances and automatic control instruments according to the process requirements to ensure the stable operation of the facilities.
(twenty-seven) when using adsorption recovery (concentration), catalytic combustion, thermal incineration, plasma and other methods for terminal treatment, emergency rescue plans such as accidents, fires and explosions shall be prepared. , equipped with emergency rescue personnel and equipment, to carry out emergency drills.