HJ 1083-2020Self-monitoring technology guidelines for pollution sources--Wastewater treatment (English PDF)

5.1 Inflow monitoring

5.1.1 Urban sewage treatment plants and other domestic sewage treatment plants

The monitoring points, indicators and minimum monitoring frequency of the influx of urban sewage treatment plants and other domestic sewage treatment plants shall be implemented according to Table 1.

Row.

Table 1 Influent monitoring indicators and minimum monitoring frequency of urban sewage treatment plants and other domestic sewage treatment plants

Monitoring point monitoring frequency Water inlet Automatic monitoring of flow, COD, ammonia nitrogen Total phosphorus and nitrogen Note. The automatic monitoring data of the water main must be networked with the platform of the local ecological environment and environmental protection department's pollution source automatic monitoring system platform.

5.1.2 Industrial wastewater centralized treatment plant

The monitoring points, indicators and minimum monitoring frequency of the industrial wastewater centralized treatment plant shall be implemented in accordance with Table 2.

Table 2 Influent monitoring indicators and minimum frequency of industrial wastewater centralized treatment plants

Monitoring point monitoring frequency Water inlet Automatic monitoring of flow, COD, ammonia nitrogen Total phosphorus and nitrogen Before mixing industrial wastewater Total wastewater discharge in accordance with the relevant industry discharge permit application and technical specifications or self-monitoring technical guidelines it is determined in accordance with HJ 819 that the technical specifications and self-monitoring technical guidelines for the application and issuance of sewage discharge permits without industry the requirements for the total waste water outlet of the medium-sized wastewater are determined.

Note 1. The automatic monitoring data of the water main must be networked with the platform of the local ecological environment and environmental pollution control system.

Note 2. The monitoring results of wastewater before industrial wastewater mixing can use the self-monitoring data of the wastewater discharge unit or carry out the monitoring on its own.

5.2 Wastewater discharge monitoring

5.2.1 Urban sewage treatment plants and other domestic sewage treatment plants

The wastewater discharge monitoring points, monitoring indicators and minimum monitoring frequency of urban sewage treatment plants and other domestic sewage treatment plants are as follows.

Follow Table 3.

Urban sewage treatment plants and other domestic sewage treatment plants that accept industrial waste water containing toxic and harmful water pollutants shall refer to Table 4 Increase the frequency of monitoring of toxic and harmful pollutants.

If the changes in the influent cause the types of pollutants to change, the self-monitoring scheme should be adjusted in accordance with Table 3.

Table 3 Monitoring indicators and minimum frequency of wastewater discharge from urban sewage treatment plants and other domestic sewage treatment plants

Monitoring point monitoring index Monitoring frequency Capacity >= 20,000 m3/d Capacity < 20,000 m3/d Total wastewater discharge Mouth a Flow, pH, water temperature, COD, ammonia nitrogen, total phosphorus, Total nitrogen b Automatic monitoring Suspended matter, chroma, five-day BOD, animal and vegetable oil, Petroleum, anionic surfactant, fecal coliform count Month quarter Total cadmium, total chromium, total mercury, total lead, total arsenic, and hexavalent chromium Alkylmercury Permissible indicators included in Table 3 of GB 18918 Other pollutants c Rainwater discharge outlet pH value, chemical oxygen demand, ammonia nitrogen, suspended matter month d aBefore the wastewater is discharged into the environment water body, if there are other wastewater discharge units mixed with wastewater, monitoring points should be set before and after the wastewater is mixed.

b Prior to the release and implementation of the technical specification for automatic monitoring of total nitrogen, daily monitoring is required.

c Accept other pollutants contained in the discharge standards implemented by industrial wastewater.

dMonthly monitor for rainwater discharge when there is flowing water discharge. If there is no abnormal situation in the monitoring for one year, it can be relaxed to carry out monitoring once a quarter.

Note. The municipal and above-level ecological and environmental authorities with districts clearly require pollutant indicators to be installed with automatic monitoring equipment, and must take automatic monitoring.

5.2.2 Industrial wastewater centralized treatment plant

Wastewater monitoring indicators for industrial wastewater centralized treatment plants that treat mixed industry wastewater are subject to pollutants included in the discharge permit control the indicators are determined, the monitoring points and the minimum monitoring frequency are implemented according to Table 4.

If the type of pollutants changes due to changes in the inflow of sewage units, the self-monitoring scheme should be adjusted according to Table 4.

Table 4 Monitoring indicators and minimum monitoring frequency of wastewater discharge from a centralized industrial wastewater treatment plant

Monitoring point monitoring index Monitoring frequency Direct emissions indirect emissions Total wastewater discharge Mouth a Automatic monitoring of flow rate, pH value, water temperature, COD, ammonia nitrogen, total phosphorus, total nitrogen Suspended matter, chroma, sun and moon 5-Day Biochemical Oxygen Demand, Petroleum Rose Total cadmium, total chromium, total mercury, total lead, total arsenic, hexavalent chromium Other pollutants c quarter Rainwater discharge outlet pH value, chemical oxygen demand, ammonia nitrogen, suspended matter month d aBefore the wastewater is discharged into the environment water body, if there are other wastewater discharge units mixed with wastewater, monitoring points should be set before and after the wastewater is mixed.

b Prior to the release and implementation of the technical specification for automatic monitoring of total nitrogen, daily monitoring is required.

c Accept other pollutants contained in the discharge standards implemented by industrial wastewater.

dMonthly monitor for rainwater discharge when there is flowing water discharge. If there is no abnormal situation in the monitoring for one year, it can be relaxed to carry out monitoring once a quarter.

Note. The municipal and above-level ecological and environmental authorities with districts clearly require pollutant indicators to be installed with automatic monitoring equipment, and must take automatic monitoring.

5.3 Exhaust emission monitoring

5.3.1 Organized exhaust emission monitoring

Water treatment and sewage disposal unit Self-built solid waste incineration facility and self-built deodorization device exhaust tube Organized exhaust gas emission monitoring point Position, monitoring index and minimum monitoring frequency shall be implemented in accordance with Table 5.

Table 5 Organized exhaust emission monitoring indicators and minimum monitoring frequency

Monitoring point monitoring frequency General solid waste incineration Furnace exhaust Automatic monitoring of particulate matter, sulfur dioxide, nitrogen oxides, carbon monoxide, hydrogen chloride Mercury and its compounds, (cadmium, thallium and its compounds), (antimony, arsenic, lead, chromium, cobalt, Copper, manganese, nickel and their compounds) Month a Dioxin year Hazardous waste incinerator Inflator Automatic monitoring of particulate matter (smoke and dust), sulfur dioxide, nitrogen oxides, carbon monoxide, hydrogen chloride Smoke blackness, hydrogen fluoride, mercury and its compounds, cadmium and its compounds, (arsenic, nickel and its compounds), lead and its compounds, (chromium, tin, antimony, copper, manganese and their compounds) Dioxin year Deodorizing device exhaust odor concentration, hydrogen sulfide, ammonia for half a year aIf there is no abnormality in the monitoring for one year, it can be relaxed to carry out monitoring at least once a year.

Note. The flue gas parameters and pollutant concentrations should be monitored simultaneously.

5.3.2 Monitoring of fugitive exhaust emissions

The monitoring points, monitoring indicators and minimum monitoring frequency of fugitive exhaust emissions shall be implemented in accordance with Table 6.

Table 6 Monitoring points, monitoring indicators and minimum monitoring frequency of fugitive exhaust emissions

Monitoring point monitoring frequency the highest concentration point at the boundary of the plant or the protective belt a. Ammonia, hydrogen sulfide, and odor concentration for half a year Highest methane volume concentration in plant b methane c year a The highest concentration point on the edge of the protective belt is usually located near the sludge dewatering machine room.

b is usually located at the grid, primary sedimentation tank, sludge digestion tank, sludge concentration tank, sludge dewatering machine room, etc., select the highest concentration point to set the monitoring point.

c implementation of GB 18918 sewage unit implementation.

Note. The flue gas parameters and pollutant concentrations should be monitored simultaneously.

5.4 Monitoring of factory environmental noise

The setting of the environmental noise monitoring points at the factory boundary should follow the principles in HJ 819. When setting the points, Table 7 noise sources should be considered at the factory.

Distribution in the area. Environmental noise at the factory boundary shall be monitored at least once a day and night every quarter.

Test frequency.

Table 7 Monitoring indicators and minimum frequency of environmental noise at the factory boundary

Monitoring frequency of noise source and main equipment monitoring indicators Water inlet pump, aerator, sludge return pump, sludge dewaterer, Air compressor, various fans, etc.

Equivalent continuous A sound level quarter

5.5 Sludge monitoring

The sludge monitoring indicators and frequency shall be implemented in accordance with Table 8. For sludge that has other uses after leaving the factory, it shall be required according to relevant standards.

Seek monitoring.

Table 8 Sludge monitoring indicators and minimum monitoring frequency of urban sewage treatment plants and other domestic sewage treatment plants

Monitoring index monitoring frequency note Water content day Applicable to the case of aerobic compost sludge stabilization treatment Worm egg mortality, fecal coliform value month Organic matter degradation rate Suitable for anaerobic digestion, aerobic digestion, and aerobic compost sludge stabilization the situation of fixed processing

5.6 Monitoring of surrounding environmental quality impact

5.6.1 Pollutant emission standards, environmental impact assessment documents and their approvals [only available after January 1, 2015 (inclusive) If the pollutant discharge unit approved by the environmental impact assessment] or other environmental management policies have clear requirements, they shall be implemented as required.

5.6.2 If there is no clear requirement, the sewage disposal unit can monitor the surrounding surface water and seawater according to the actual situation.

The sewage discharge units connected to the surface water and seawater can be set up monitoring sections and monitoring according to HJ/T 2.3, HJ/T 91, HJ 442 Point, monitoring index and minimum monitoring frequency shall be implemented according to Table 9.

Table 9 Monitoring indicators and minimum monitoring frequency of surrounding environmental quality impact

Monitoring frequency of target environmental monitoring indicators Surface water General indicators. pH value, suspended matter, chemical oxygen demand, five-day biochemical oxygen demand Amount, ammonia nitrogen, total phosphorus, total nitrogen, petroleum, etc.

Characteristic indicators a. heavy metals, refractory organic compounds, residual chlorine b, etc.

Monitor at least during the high, dry and flat seasons each year once seawater General indicators. pH, chemical oxygen demand, five-day biochemical oxygen demand, dissolution Oxygen, active phosphate, inorganic nitrogen, petroleum, etc.

Characteristic indicators a. heavy metals, residual chlorine b, etc.

Monitoring at least during high tide and low tide each year once a It is applicable to the situation where there is a large amount of related wastewater received and treated, and specific monitoring indicators can be determined according to the received wastewater situation.

b Applicable to the situation of disinfecting sewage with chlorine-containing chemicals.

5.7 Other requirements

5.7.1 In addition to the pollutant indicators in Tables 1 to 9, pollutant discharge permits, pollutant discharge (control) standards implemented, Environmental impact assessment documents and their approvals [Only after the January 1, 2015 (incl.

Position], pollutant indicators clearly required by relevant management regulations should also be included in the scope of monitoring indicators, and refer to Tables 1-9 and HJ 819 Determine the frequency of monitoring.

5.7.2 The monitoring frequency of each indicator can meet the requirements of this standard.

High monitoring frequency.

5.7.3 Sampling methods, monitoring analysis methods, monitoring quality assurance and quality control shall be implemented in accordance with HJ 819.

5.7.4 The description and changes of the monitoring plan shall be implemented in accordance with HJ 819.

6.1 Information records

6.1.1 Manual monitoring records and automatic monitoring operation and maintenance records are performed in accordance with HJ 819.

6.1.2 Use daily and monthly reports of the operation status of water treatment and sewage discharge units to record water volume information, which should include total sewage inflow, Discharge, treatment and recycling.

6.1.3 Use daily and monthly reports of the operation status of water treatment and sewage discharge units to record power consumption information, which should include electricity consumption and blowers Group power consumption.

6.1.4 Use daily and monthly reports on the operation status of water treatment and sewage discharge units to record the information on the use of pharmaceuticals.

Name and dosage of each medicament used, and indicate the proportion of active ingredients in the medicament

6.1.5 The daily and monthly reports on the operation status of water treatment and sewage discharge units shall be used to record the sludge amount information, which shall include the sludge generation amount, Processing capacity, various types of consumption, storage capacity.

6.2 Report and information disclosure

Information reports, emergency reports and information disclosure are implemented in accordance with HJ 819.