HJ 981-2018Technical guidelines of accounting method for pollution source intensity - Coking chemical industry (English PDF)

4.1 General principles

The strong source accounting procedures include pollution source identification and pollutant determination, accounting method and parameter selection, source strength accounting, and accounting results.

For details, see HJ 884 for details.

4.2 Identification of pollution sources

Coking chemical industry pollution source identification should cover all places, equipment or equipment that may generate waste gas, wastewater, noise, solid waste pollutants or the device is shown in Table 1.

The identification of pollution sources shall comply with the requirements of HJ 2.1, HJ 2.2, HJ 2.3, HJ 2.4, HJ 708 and so on.

4.3 Determination of pollutants

The determination of pollutants in various pollution sources in the coking chemical industry shall include pollutants in national and local emission standards such as GB 16171.

Table 1. Contaminants that may be produced in the production process but not included in national or local pollutant discharge standards may be based on environmental quality standards.

Other industry standards, other national emission standards, local people's governments or eco-environmental authorities, environmental quality improvement needs, according to raw materials the materials and fuel use and production process conditions are analyzed and determined.

4.4 Accounting method selection

The methods of calculating the source of pollution in the coking chemical industry include the actual measurement method, the analogy method, the material balance algorithm and the pollution yield coefficient method, etc.

The order of priority selection is shown in Table 1. The source strength accounting method should be selected in order of priority. If the priority method cannot be adopted, reasonable reasons should be given.

Table 1 Selection table of strong accounting methods for pollution source of coking chemical industry

Element pollution source pollutant project Accounting method and prioritization New (reform, expansion) Engineering pollution source Existing engineering Source of pollution Exhaust gas Organized (normal row put) Clean coal crushing, coke crushing, screening and transport facility particulate matter Analogy method 2. Pollution coefficient method 1. Actual measurement method Coal loading facility Particulate matter, sulfur dioxide 1. analogy method 2. pollution coefficient method 1. actual measurement method Benzo[a]芘1. analogy method 1. actual measurement method Pushing coke facilities particulate matter, sulfur dioxide 1. Analogy method 2. Pollution coefficient method 1. Actual measurement method Coke oven chimney Particulate matter, nitrogen oxides 1. analogy method 2. pollution production coefficient method 1. actual measurement method Sulfur dioxide 1. Material balance algorithm 1. Actual measurement method Dry quenching facility Particulate matter 1. analogy method 2. pollution coefficient method 1. actual measurement method Sulfur dioxide 1. Material balance algorithm 1. Actual measurement method Crude benzene tube furnace, semi-coke drying and ammonia Design of burning coke oven gas such as decomposition furnace Particulate matter, nitrogen oxides 1. analogy method 2. pollution production coefficient method 1. actual measurement method Sulfur dioxide 1. Material balance algorithm 1. Actual measurement method Cold drum, tar storage in various storage areas Benzo[a]pyrene, hydrogen cyanide, phenols, Non-methane total hydrocarbons, hydrogen sulfide, ammonia 1. Analogy method 1. Measured method Benzene storage tank benzene, non-methane total hydrocarbons 1. Analogy method 1. Measured method Desulfurization regeneration tower hydrogen sulfide, ammonia 1. Analogy method 1. Actual measurement method Ammonium sulfate crystal drying facility, particulate matter, ammonia 1. Analogy method 1. Actual measurement method Organized (unusual emission) Clean coal crushing, coke crushing, screening and transfer facility particles 1. analogy Actual measurement method 2. Analogy a Coal loading facilities particulate matter, sulfur dioxide, benzo[a] 芘1. Analogy Actual measurement method 2. Analogy a Pushing coke facilities particulate matter, sulfur dioxide 1. Analogy method 1. Actual measurement method 2. Analogy method a Coke oven chimney Particulate matter, nitrogen oxides 1. analogy method 1. actual measurement method 2. analogy method a Sulfur dioxide Analogy method 2. Material balance algorithm Actual measurement method 2. Analogy a Dry quenching facility Particulate matter 1. analogy method 1. actual measurement method 2. analogy method a Sulfur dioxide 1. analogy method 2. material balance algorithm Actual measurement method 2. Analogy a Crude benzene tube furnace, semi-coke drying and ammonia Design of burning coke oven gas such as decomposition furnace Particulate matter, nitrogen oxides 1. analogy method 1. actual measurement method 2. analogy method a Sulfur dioxide 1. analogy method 2. material balance algorithm Actual measurement method 2. Analogy a Continued Element pollution source pollutant project Accounting method and prioritization New (reform, expansion) Engineering pollution source Existing engineering Source of pollution Exhaust gas Organized (unusual emission) Cold drum, tar storage in various storage areas Benzo[a]pyrene, hydrogen cyanide, phenols, Non-methane total hydrocarbons, hydrogen sulfide, ammonia 1. analogy method 1. actual measurement method 2. analogy method a Benzene storage facility benzene, non-methane total hydrocarbon Desulfurization regeneration tower hydrogen sulfide, ammonia Ammonium sulfate crystal drying facility particulate matter, ammonia Unorganized Coal yard, clean coal crushing, coke crushing, Screening and transfer facility particulate matter 1. analogy method 1. analogy method Coke oven body particles, benzo[a]pyrene, hydrogen sulfide, Ammonia, benzene solubles 1. analogy method 1. analogy Various storage tanks benzo[a]pyrene, hydrogen cyanide, benzene, phenol Class, non-methane total hydrocarbons 1. analogy method 1. analogy Waste water Polycyclic aromatic hydrocarbons, benzo[a]芘1. analogy method in the wastewater discharge port of workshop or production facility 1. Measured method Independent coking enterprise wastewater discharge or Iron and steel complex coking plant wastewater exhaustion hole Suspended matter, chemical oxygen demand, ammonia nitrogen, 5th day biochemical oxygen demand, total phosphorus, total Nitrogen, petroleum, volatile phenol, vulcanization Matter, benzene, cyanide Analogy method 2. Pollution coefficient method 1. Actual measurement method Noise, various fans, pumps, air compression Noise level of noise sources such as machines and crushers 1. Analogy Actual measurement method 2. Analogy a Solid Waste Tar ammonia water separation device, ammonia tower, Ammonium sulfate saturator, desulfurization facility, off Nitrogen facility, phenol cyanide wastewater treatment station and various dust removal facilities Coal dust, coke dust, tar residue, regeneration Residue, ammonia residue, acid tar, Biochemical sludge, desulfurization waste liquid, desulfurization Waste residue, waste denitration agent, etc.

Analogy method

2. Pollution coefficient method Actual measurement method 2. Analogy Note. The existing engineering pollution sources are not manually monitored according to relevant management requirements, automatic monitoring equipment for installation of pollutants or automatic monitoring equipment does not meet the requirements.

In the process of environmental impact assessment management, it shall be calculated according to the method in this table after rectification according to law; in the process of sewage permit management, in accordance with the discharge permit the relevant regulations can be accounted for.

a When the existing project pollution sources are strongly accounted for, when there are multiple pollution sources of the same type in the same enterprise, other pollution sources can be compared with the same type of pollution sources in the enterprise.

The pollution source data accounting source is strong.

4.4.1 Exhaust gas

4.4.1.1 New (reconstruction, expansion) construction project pollution source

In the normal discharge, the gas burning facilities such as coke oven chimney, crude benzene tube furnace, semi-coke drying and ammonia decomposition furnace, and the coke dry quenching facility the sulphur oxide is calculated by the material balance algorithm; the sulphur dioxide in the coal charging and pushing facilities is preferentially calculated by the analogy method, and the sulphurization coefficient method is used.

Count. Particulate matter and nitrogen oxides are preferentially calculated by analogy method, followed by the pollution yield coefficient method;

Analogy accounting. Other feature factors are accounted for by analogy. The unorganized source of exhaust gas is calculated by analogy.

In the case of abnormal discharge, the exhaust gas source is calculated by the analogy method, and the coal burning stove such as coke oven chimney, crude benzene tube furnace, semi-coke drying and ammonia decomposition furnace the material balance algorithm can also be used for sulfur dioxide in gas facilities and sulfur dioxide source in dry quenching facilities.

4.4.1.2 Existing engineering pollution sources

In normal discharge, the organized source strength of the exhaust gas is calculated by the actual measurement method. When using the actual method to calculate the source strength, the HJ 878 and the enterprise it can be used for the automatic monitoring of pollution factors, and can only be validated by effective automatic monitoring data; for HJ 878 and corporate sewage the automatic monitoring of pollution factors is not required for licenses, etc., and automatic monitoring data is preferred, followed by manual monitoring of data. No exhaust gas Weaving source strength uses the analogy method for accounting.

In the case of abnormal emissions, the exhaust gas source is calculated by the actual measurement method, and secondly, the measured data of the same type of pollution source is abnormal.

Count.

4.4.2 Waste water

4.4.2.1 New (reconstruction, expansion) construction project pollution source

The pollution source of the wastewater discharge port of the workshop or production facility is calculated by analogy.

The pollution source of the waste water discharge port of the independent coking enterprise or the coking branch of the iron and steel complex enterprise is preferentially calculated by analogy method.

The calculation is based on the pollution coefficient method.

4.4.2.2 Existing engineering pollution sources

The source of pollution is calculated by the actual measurement method. When using the actual measurement method to calculate the source strength, the requirements for HJ 878 and enterprise sewage permit are adopted.

The pollution factor of the dynamic monitoring can only be calculated by using effective automatic monitoring data; it is not required for HJ 878 and enterprise sewage discharge permit.

With automatic monitoring of pollution factors, automatic monitoring data is preferred, followed by manual monitoring of data.

4.4.3 Noise

4.4.3.1 New (reconstruction, expansion) construction project pollution source

The source of pollution is strongly calculated using the analogy method.

4.4.3.2 Existing engineering pollution sources

The source of pollution is prioritized by the actual measurement method, followed by the analogy method.

4.4.4 Solid waste

4.4.4.1 New (reconstruction, expansion) construction project pollution source

The source of pollution is preferentially calculated by analogy method, and secondly by the pollution coefficient method.

4.4.4.2 Existing engineering pollution sources

The source of pollution is prioritized by the actual measurement method, followed by the analogy method.

4.5 Pollutant emissions accounting

The discharge of pollutants should include both normal and abnormal emissions, and the sum of emissions or emissions of all sources, (1) Calculation.

DDD

= sum (1)

Where. the amount of pollutants produced or discharged during the D-accounting period, t;

During the Di-accounting period, the production or discharge of a certain pollutant under normal conditions, t;

Di'-the production or emission of a certain pollutant under abnormal conditions in a certain period of time, t;

n - the number of sources of pollution, the amount of dimension one.

4.6 Summary of accounting results

See Appendix A for the format of strong source accounting results.

5.1 Material Balance Algorithm

5.1.1 General principles

The material balance algorithm is suitable for the oxidation of pollutants from combustion gas sources such as coke oven chimney, crude benzene tube furnace, semi-coke drying, ammonia decomposition furnace, etc.

Strong accounting of sulfur source and strong accounting of sulfur dioxide source in dry quenching facilities.

For the new (reconstruction, expansion) construction project pollution source strong accounting parameters, the relevant data in the design data can be obtained.

5.1.2 Sulfur dioxide

The source of sulfur dioxide, such as coke oven chimney, crude benzene tube furnace, semi-coke drying, ammonia decomposing furnace, etc., is strongly calculated according to formula (2).

( 10 ) 2 1

100i i

D fg s eta-

Where. D - the amount of sulfur dioxide emissions during the accounting period, t;

Fg - the amount of the i-th fuel used in the accounting period, 104m3;

Ifg

s - total sulfur content of the i-th fuel in the accounting period, mg/m3;

eta-desulfurization efficiency, %;

n - the type of fuel, the amount of dimension one.

The sulfur dioxide source of the CDQ facility is strongly calculated according to formula (3).

twenty one

QSD Q lambda eta = × × × × -(3) where. D - the amount of sulfur dioxide emissions during the accounting period, t;

Q - the amount of coke dry quenching during the accounting period, t;

Qs - total sulfur content in coke during the accounting period, %;

Lambda-coke burning rate, % eta - desulfurization efficiency, %.

5.2 Analogy

Emissions of exhaust pollutants can be accounted for in comparison with valid measured data of exhaust pollutants of existing devices that meet the following conditions. class the specific conditions include.

a) the composition of the coal and fuel are similar;

b) the parameters of furnace type, carbonization chamber height and width are the same;

c) the same production process;

d) The pollution control measures are similar, and the pollutant design removal efficiency is not lower than the analog object removal efficiency.

5.3 Measurement method

5.3.1 The actual measurement method is to calculate the pollutant discharge amount through the actual exhaust gas emission and the corresponding pollutant discharge concentration, which is suitable for effective measurement.

Existing engineering sources of pollution that automatically monitor or manually monitor data.

5.3.2 Data accounting using automatic waste gas monitoring system

The exhaust gas pollution source that installs the automatic monitoring system and is connected with the competent department of ecological environment shall adopt effective automatic monitoring in accordance with relevant regulations.

Data accounting for the source of exhaust pollutants. The use of automatic monitoring data to calculate the source of exhaust gas pollutants should be used for all hourly averages during the accounting period.

The data is calculated. The pollution source automatic monitoring system and data must comply with HJ 75, HJ 76, HJ/T 373, HJ 630, HJ 819, HJ 878.

And the discharge permit of the sewage unit.

The source of exhaust gas pollution is calculated according to formula (4).

D qrho

= × ×sum (4)

Where. D - the amount of pollutants discharged during the accounting period, t;

rho - standard measured emission concentration of the first hour of a pollutant in the standard state, mg/m3;

q - the first hour of exhaust emissions in the standard state, m3/h;

n - Pollutant discharge time during the accounting period, h.

5.3.3 Manual monitoring of data accounting using exhaust gas

Automatically monitor the pollutants that the system fails to monitor or the pollution sources and pollutants that are not installed in the automatic monitoring system, and use law enforcement monitoring and sewage disposal orders.

Manual monitoring data such as self-monitoring, accounting for strong source of pollutants. The use of manual monitoring data to calculate the source strength of pollutants should be used within the accounting ...