HJ 1251-2022Self-monitoring technology guidelines for pollution sources - Metal foundry industry (English PDF)

5.1 Exhaust Emission Monitoring

5.1.1 Organised exhaust emission monitoring

5.1.1.1 The monitoring points, monitoring indicators and minimum monitoring frequency of the pollutant discharge units of the metal casting industry shall be implemented in accordance with Table 1.

5.2.2 Monitoring indicators and monitoring frequency

The monitoring points, monitoring indicators and minimum monitoring frequency of waste water discharge of metal casting industry sewage discharge units shall be implemented in accordance with Table 3.

5.3 Boundary environmental noise monitoring

5.3.1 The setting of environmental noise monitoring points at the plant boundary should follow the principles in HJ 819, mainly considering metal smelting (chemical) and auxiliary equipment, sand Processing and sand regeneration equipment, shakeout machines, molding/core making equipment, centrifuges, die casting machines, cleaning and grinding equipment, vacuum pumps, air compressors, air the distribution of noise sources such as machines and other noise sources in the factory area and the location of surrounding noise-sensitive buildings.

5.3.2 The environmental noise at the boundary of the plant shall be monitored at least once a quarter for daytime and nighttime noise, and the monitoring index is equivalent continuous A sound level. frequency at night when affected by the frequent and occasional noise, measure the maximum sound level of the frequent and occasional noises at the same time. Night noise monitoring may not be carried out for those who do not produce at night. noise around for sound-sensitive buildings, the frequency of monitoring should be increased.

5.4 Surrounding environmental quality impact monitoring

5.4.1 If there are clear requirements in laws and regulations, etc., carry out monitoring of surrounding environmental quality impact as required.

5.4.2 If there is no specific requirement, if the pollutant discharge unit deems it necessary, it may open the environmental quality of surrounding water, soil and air according to the actual situation.

Exhibition monitoring. Pollutant discharge units producing lead-based and lead-bronze refer to HJ/T 166 and HJ 964 to set up soil monitoring points, and monitor surrounding soil.

The monitoring indicators and the minimum monitoring frequency shall be implemented in accordance with Table 4.

5.5 Other requirements

5.5.1 In addition to the pollutant indicators in Tables 1 to 3, the pollutant indicators in 5.5.1.1 and 5.5.1.2 should also be included in the scope of monitoring indicators, and refer to Table 1~Table 3 and HJ 819 to determine the monitoring frequency.

5.5.1.1 Pollutant Discharge Permit, Implemented Pollutant Discharge (Control) Standards, Environmental Impact Assessment Documents and Their Approvals [Only in 2015 Pollutant discharge units that have obtained the approval of environmental impact assessment after January 1, 2009], and the pollutants specified in the relevant ecological environment management regulations.

mark.

5.5.1.2 The sewage discharge unit determines the actual discharge according to the raw and auxiliary materials used in the production process, the production process, the types of intermediate and final products, and the monitoring results.

released, the pollutant indicators in the list of toxic and hazardous pollutants or the priority control chemicals list, or other toxic pollutant indicators.

5.5.2 The monitoring frequency of each indicator can be increased according to the determination principle in HJ 819 on the basis of meeting this standard.

5.5.3 Key pollutant discharging units shall install and use automatic monitoring equipment according to laws and regulations. Non-key pollutant discharging units do not have mandatory requirements.

The monitoring frequency of position and monitoring indicators shall be determined with reference to this standard.

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

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

5.5.6 The safety protection of monitoring personnel shall be implemented in accordance with relevant standards and regulations.

6.1 Information records

6.1.1 Monitoring information record

Manual monitoring records and automatic monitoring operation and maintenance records are implemented in accordance with HJ 819.The authenticity and accuracy of the automatic monitoring data by the sewage unit Responsible for the abnormal data transmission should be reported in a timely manner, and implemented in accordance with national standards or automatic monitoring data abnormality marking rules.

6.1.2 Information record of the operation status of production and pollution control facilities

6.1.2.1 General provisions

The pollutant discharging unit shall record the operation status of production and pollution control facilities in detail, and shall also refer to 6.1.2.2~6.1.2.5 to record relevant records in daily production.

information, and organize it into a ledger for future reference.

6.1.2.2 Production Health Record

Record the operating status, production load, main product output of each main production unit and each production facility under normal working conditions by day or production shift.

Information such as amount, raw and auxiliary materials and fuel usage (including type, name, amount, composition and proportion of toxic and harmful elements).

6.1.2.3 Operation status record of waste gas pollution control facilities

Record the start and stop time of waste gas treatment facilities, waste gas discharge time, etc. by day or production shift, and record waste gas treatment by replacement batches.

Name and amount of consumables such as filter materials and adsorbents, and record operating parameters, faults and maintenance of waste gas treatment facilities.

6.1.2.4 Records of the operation status of wastewater pollution control facilities

Record waste water treatment volume, waste water discharge volume, waste water recycling volume and recycling rate, sludge production volume (record moisture content), Name and amount of chemicals used in wastewater treatment, electricity consumption, etc., and record the operation, failure and maintenance of wastewater treatment facilities.

6.1.2.5 Operation status record of noise pollution control facilities

Record the daily inspection, failure and maintenance or replacement of noise pollution control facilities.

6.1.3 Industrial Solid Waste Records

Record the relevant information of industrial solid waste according to HJ 1200, see Table 5 for the generation of industrial solid waste. Hazardous waste that may be generated According to the "National List of Hazardous Wastes" or the identification standards and identification methods of hazardous wastes.

6.2 Information report, emergency report and information disclosure

Execute in accordance with HJ 819.