A few days ago, Anhui issued the "Emission Standards for Air Pollutants of the Cement Industry in Anhui Province (Second Consultation Draft)". The emission standard requirements are as follows:
1 Existing enterprises will still implement the GB 4915-2013 standard before December 31, 2020, and the maximum allowable emission concentration of air pollutants specified in Table 1 will be implemented from January 1, 2021 (from the date of implementation of the standard, it will reach Table 1 (Cement companies with the highest allowable concentration of air pollutants specified in the Regulations may not perform staggered production in key industries in autumn and winter).
2 From the date of implementation of this standard, newly-established enterprises shall implement the maximum allowable emission concentration of air pollutants as specified in Table 1.
3 From the date of implementation of the standard, the concentration limit of monitoring points for fugitive emissions of air pollutants from cement industry enterprises shall comply with the provisions in Table 2.
In order to implement the laws and regulations of the Environmental Protection Law of the People's Republic of China, the Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution, and the Regulations on the Prevention and Control of Atmospheric Pollution of Anhui Province, to strengthen the supervision and management of air pollutant emissions and reduce pollutant emissions, To further improve the quality of the atmospheric environment in Anhui Province, develop this standard.
This standard specifies the air pollutant emission concentration limits, monitoring and supervision and management requirements of cement industry enterprises in the area under the jurisdiction of Anhui Province.
Water pollutants and environmental noise emitted by cement industry enterprises shall be subject to the corresponding national pollutant discharge standards, and the identification, treatment and disposal of solid wastes shall be subject to national solid waste pollution control standards.
This standard has mandatory enforcement effect.
This standard was formulated by the Anhui Provincial Department of Ecology and Environment.
This standard was drafted: Anhui Academy of Environmental Sciences, Anhui Cement Association.
The main drafters of this standard:.
This standard was approved by the People's Government of Anhui Province on XX, XX, and XX.
This standard is issued for the first time and will be implemented from XX to XX on XX.
This standard is explained by the Department of Ecology and Environment of Anhui Province.
Emission Standards of Air Pollutants for the Cement Industry
This standard specifies the air pollutant emission limit, monitoring and supervision and management requirements for cement manufacturing enterprises (including independent grinding stations), cement raw material mines, bulk cement transfer stations, cement product enterprises and their production facilities.
This standard applies to air pollutant emission management of existing cement industry enterprises or production facilities, as well as environmental impact assessment of cement industry construction projects, design of environmental protection facilities, completion of environmental protection acceptance, emission permits, and air pollutant emissions after commissioning. management.
In addition to the implementation of this standard, the use of cement kilns for the solid waste disposal shall also comply with the relevant pollution control standards of Anhui Province and the state.
2 Normative references
The content of this standard refers to the following documents or clauses therein. For undated references, the latest version (including all amendments) is applicable to this standard.
GB4915 Air Pollutant Emission Standard for Cement Industry
GB / T 15432 Determination of total suspended particulate matter in ambient air by gravimetric method
GB / T 16157 Determination of particulate matter and sampling of gaseous pollutants in exhaust from stationary pollution sources
HJ / T 42 Determination of nitrogen oxides in exhaust from stationary pollution sources Ultraviolet spectrophotometry
HJ / T 43 Determination of nitrogen oxides in exhaust gas from stationary pollution sources Naphthylenediamine hydrochloride spectrophotometric method
HJ / T 55 Technical guidelines for fugitive emissions monitoring of air pollutants
HJ / T 56 Determination of sulfur dioxide in exhaust gas from stationary pollution sources Iodometric method
HJ / T 57 Determination of sulfur dioxide in exhaust gas from stationary sources Potentiostatic electrolytic method
HJ / T 67 Determination of fluoride from fixed sources of atmospheric pollution Ion-selective electrode method
HJ / T 75 Technical Specification for Continuous Monitoring of Flue Gas Emissions from Fixed Pollution Sources (Trial)
HJ / T 76 Technical requirements and detection methods for continuous monitoring of flue gas emissions from stationary sources (trial)
HJ / T 397 Fixed source exhaust gas monitoring technical specifications
HJ 479 Determination of nitrogen oxides (nitrogen monoxide and nitrogen dioxide) in ambient air Spectrophotometric method of naphthalene ethylenediamine hydrochloride
HJ 482 Determination of sulfur dioxide in ambient air-Formaldehyde absorption-pararosanilide spectrophotometric method
HJ 483 Determination of sulfur dioxide in ambient air-Tetrachloromercury salt absorption-pararosaniline spectrophotometry
HJ 533 Determination of ammonia in ambient air and exhaust gas Nessler's reagent spectrophotometry
HJ 534 Determination of ammonia in ambient air Sodium hypochlorite-salicylic acid spectrophotometry
HJ 543 Determination of mercury in exhaust gas from stationary sources Cold atomic absorption spectrophotometry (Interim)
HJ 629 Determination of sulfur dioxide in exhaust gas from stationary sources Non-dispersive infrared absorption method
HJ 692 Determination of nitrogen oxides from exhaust gas from stationary sources Non-dispersive infrared absorption method
HJ 693 Determination of nitrogen oxides from exhaust gas from stationary sources Potentiostatic electrolytic method
"Administrative Measures for the Automatic Monitoring of Pollution Sources" (Order of the State Environmental Protection Administration No. 28)
"Administrative Measures for Environmental Monitoring" (Order of the State Environmental Protection Administration No. 39)
HJ 836 Determination of low-concentration particulate matter from stationary sources of exhaust gas by gravimetric method
DB13 / T2376 Determination of particulate matter from stationary sources of exhaust gas ß-ray method
3 terms and definitions
The following terms and definitions apply to this standard.
3.1 cement industry
Industrial sector engaged in mining of cement raw materials, cement manufacturing, bulk cement transshipment, and production of cement products.
3.2 cement kiln
Cement clinker calcining equipment.
3.3 Waste heat utilization system of kiln exhaust gas
A system that introduces waste gas from the kiln tail of the cement kiln, uses waste heat of the waste gas to dry materials, generate electricity, etc., and purifies the waste gas after the waste heat is used.
3.4 dryer, drying and grinding mill, coal
grinding mill and clinker cooler
Dryer refers to various types of material drying equipment; drying mill refers to material drying and grinding equipment; coal mill refers to various types of pulverized coal preparation equipment; cooler refers to various types (cylinder, grate, etc.) of cooling Clinker equipment.
, mill, packing machine and other ventilation production equipment
machine and other ventilation equipment
Crusher refers to various crushed block granular materials equipment; mill refers to various material grinding equipment systems (excluding drying)
Mills and coal mills); packaging machines refer to various types of packaging cement equipment (including cement bulk warehouses); other ventilation production equipment refers to production equipment that requires ventilation in addition to the above main production equipment, including material transport equipment, silos and Types of storage, etc.
3.6 bulk cement terminal
Bulk cement distribution centers are usually water transportation (sea transportation, river transportation) and land transportation transfer stations.
3.7 production of cement products
Production of ready-mixed concrete, mortar and concrete prefabricated parts, excluding the process of cement used for mixing at the construction site.
3.8 standard condition
The state at a temperature of 273K and a pressure of 101.3kPa. The air pollutant concentrations specified in this standard are all mass concentrations under standard conditions.
3.9 maximum allowable emission concentration
Any one-hour average value of the concentration of pollutants in the exhaust pipe after the treatment facility must not exceed; or a limit value that the average value of the one-hour concentration of pollutants in the exhaust pipe without treatment facility must not exceed.
3.10 fugitive emission
The irregular discharge of air pollutants without passing through the exhaust pipe mainly includes the storage of materials in the workplace, the open conveyance of dust, and the leakage of air pollutants such as equipment and pipelines.
3.11 concentration limit at fugitive emission at fugitive emission monitoring points
The limit value of the pollutant concentration at the monitoring point shall not exceed the average value in any one hour.
3.12 stack height
The height from the ground plane where the exhaust pipe (or its main building structure) is located to the exit of the exhaust pipe, the unit is m.
3.13 existing facility existing facility
Before the implementation of this standard, a cement industry enterprise or production facility whose production or environmental impact assessment documents have been approved has been completed.
3.14 New facility
Since the date of implementation of this standard, the environmental impact assessment documents have passed the approval of new, reconstructed and expanded cement industry construction projects.
4 Air pollutant emission control requirements
4.1 Air pollutant emission limit of exhaust pipe
4.1.1 Existing enterprises will still implement the GB 4915-2013 standard before December 31, 2020, and from January 1, 2021, the maximum allowable emission concentration of air pollutants specified in Table 1 will be implemented (from the date of implementation of the standard, the (Cement companies with the highest allowable concentration of atmospheric pollutants specified in Table 1 may not perform peak-peak production in key industries in autumn and winter).
4.1.2 As of the date of implementation of this standard, newly-established enterprises shall implement the maximum allowable emission concentration of air pollutants as specified in Table 1.
4.1.3 For the exhaust of the cement kiln and the waste heat utilization system at the end of the kiln, the oxygen content in the exhaust should be monitored at the same time. The measured emission concentration of air pollutants should be converted to the reference emission concentration under the reference oxygen content state according to formula (1). , And use this as the basis for judging whether emissions meet standards. Exhaust from other workshops or production facilities is calculated based
on the measured concentration
, but it must not be artificially diluted.
4.2 Requirements for fugitive emission control
4.2.1 The material handling, transportation, loading and unloading processes of cement industry enterprises shall be closed, and storage shall be closed. Other effective dust suppression measures may also be adopted for the rock, sticky and wet materials, slurry, and the loading and unloading processes of vehicles and ships to control the fugitive emissions of particulate matter .
4.2.2 The open skylights, doors and windows of the production workshop shall not have visible fugitive emissions.
4.2.3 From the date of implementation of the standard, the concentration limit of monitoring points for fugitive emissions of air pollutants from cement industry enterprises shall comply with the provisions in Table 2.
4.3 Waste gas collection, treatment and emissions
4.3.1 Production processes and devices that produce atmospheric pollutants must have local or overall gas collection systems and purification treatment devices to meet standards for emissions.
4.3.2 The purification treatment device shall run synchronously with its corresponding production process equipment. It shall be ensured that the purification treatment device can still operate normally in the case of fluctuations in the production process equipment, and achieve the discharge in compliance with the standards. Due to abnormal discharge caused by the failure of the purification treatment device, the corresponding production process equipment should be stopped and put into use after maintenance.
4.3.3 Except for the stand-alone dust removal facilities at the bottom of the warehouse, the pit and the material transfer point, the height of other exhaust cylinders shall not be less than 15m. The height of the exhaust pipe should be more than 3m above the body building (structure). When there is a building within a radius of 200m around the exhaust pipe of the cement kiln and the waste heat utilization system of the kiln tail, the height of the exhaust pipe should be more than 3m higher than the highest building.
4.4 Monitoring of surrounding environment quality
In the production process after the environmental protection acceptance of the production and construction projects of the existing enterprises, the environmental protection department in charge of supervision and control should monitor the environmental quality of sensitive areas around the residential, teaching, medical and other uses. Local governments are responsible for the environmental quality of their jurisdictions, and take measures to ensure that environmental conditions meet environmental quality standards.
5 Pollutant monitoring requirements
5.1 An enterprise shall establish an enterprise monitoring system, formulate a monitoring plan in accordance with the relevant laws and regulations of Environmental Monitoring Management Methods, HJ819, etc., carry out self-monitoring of the pollutant discharge status and its impact on the surrounding environment quality, and maintain the original monitoring records, and Publish monitoring results.
5.2 The requirements for new and existing enterprises to install automatic pollutant discharge monitoring equipment shall be implemented in accordance with the relevant laws and the Measures for the Administration of Automatic Monitoring of Pollution Sources.
5.3 The enterprise shall design, construct, and maintain permanent sampling ports, sampling test platforms, and sewage outlet signs in accordance with the requirements of environmental monitoring management regulations and technical specifications.
5.4 Sampling of exhaust gas emitted by enterprises shall be carried out at the specified pollutant emission monitoring position according to the type of pollutants to be monitored. If there is an exhaust gas treatment facility, monitoring shall be performed after the facility. The monitoring and sampling of air pollutants in the exhaust cylinder shall be carried out in accordance with the provisions of GB / T 16157, HJ / T 397 and HJ / T 75, and the monitoring of the fugitive emissions of air pollutants shall be performed in accordance with the HJ / T 55 provisions.
For monitoring the concentration of air pollutants in the exhaust cylinder, any continuous one-hour sampling can be used to obtain the average value, or more than three samples can be collected at equal time intervals within any one hour to calculate the average value. For intermittent emissions and the discharge time is less than 1 hour, continuous monitoring should be implemented during the discharge period, or more than 3 samples should be collected at equal intervals and averaged.
5.5 For the determination of air pollutant emission concentrations, the method standards listed in Table 3 are used.
6 Implementation and supervision
6.1 The ecological environment administrative department of the people's government at or above the county level is responsible for supervising and implementing this standard.
6.2 After the implementation of this standard, if the relevant newly issued or revised national standard is stricter than this standard, the corresponding national standard shall be implemented according to its scope of application.
6.3 In any case, cement industry enterprises shall comply with the requirements for the control of air pollutant emissions specified in this standard, and take necessary measures to ensure the normal operation of pollution prevention facilities. Eco-environmental departments at all levels can conduct on-site sampling or monitoring results when conducting supervisory inspections of enterprises as the basis for judging whether pollutant discharge behavior meets emission standards and implementing related environmental protection management measures.