The following are the screening conditions for heavy polluting enterprises. Please compare them to determine whether it is the sludge drying of heavy polluting enterprises.

Article 5 Enterprises and institutions that meet one of the following conditions shall be included in the list of key pollutant discharge units for the water environment.

(1) The annual discharge of one or several major pollutants of wastewater is greater than the screening discharge limit set by the municipal environmental protection department with districts.

The main pollutant indicators of wastewater refer to chemical oxygen demand, ammonia nitrogen, total phosphorus, total nitrogen, and heavy metals such as mercury, cadmium, arsenic, chromium, and lead. The screening discharge limit is determined according to the environmental quality status, and the total pollutant discharge shall not be less than 65% of the total industrial pollutant discharge in the administrative region.

(2) All large and medium-sized enterprises that have facts of pollutant discharge and belong to the key supervision industry of wastewater pollution.

Wastewater pollution key supervision industries include: pulping and papermaking, coking, nitrogen fertilizer manufacturing, phosphate fertilizer manufacturing, non-ferrous metal smelting, petrochemicals, chemical raw materials and chemical products manufacturing, chemical fiber manufacturing, including bleaching, dyeing, printing, washing, finishing, etc. Process textile printing and dyeing, agricultural and sideline food processing, raw material medicine manufacturing, leather tanning processing, fur tanning processing, feather (velvet) processing, pesticides, electroplating, phosphate mining, non-ferrous metal mining, dairy products manufacturing, seasonings and Fermented product manufacturing, wine and beverage manufacturing, automobile manufacturing with surface coating process, semiconductor liquid crystal panel manufacturing with surface coating process, etc.

Localities can increase relevant wastewater pollution key supervision industries based on local actual conditions.

(3) Units that have issued pollutant discharge permits and produce wastewater pollutants that implement key management of pollutant discharge permits.

(4) Large-scale livestock and poultry farms and breeding communities with sewage discharge outlets.

(5) Centralized industrial wastewater treatment plants of all sizes, urban domestic sewage treatment plants that can treat 100,000 tons or more of industrial wastewater per day or accept industrial wastewater that can treat more than 20,000 tons per day. Localities can lower the scale limit of urban sewage centralized treatment facilities according to local actual conditions.

(6) Enterprises that produce soluble and highly toxic waste residues containing mercury, cadmium, arsenic, chromium, lead, cyanide, and yellow phosphorus. Sludge drying

(7) Enterprises and institutions that undertake pollution control tasks in the water pollution control target responsibility letter of the local people's government at or above the city level with districts.

(8) Enterprises and institutions that have a major or more sudden water environmental pollution incident within three years or have caused a major social impact due to water environmental pollution.

(9) Enterprises that have exceeded the water pollutant discharge standards and key water pollutant discharge total control indicators within three years and have been given a "yellow card" warning by the environmental protection authority, and the environmental protection authority has not met the requirements after remediation and the circumstances are serious "Red card" punished enterprises.

Article 6 Enterprises and institutions that meet one of the following conditions shall be included in the list of key pollutant discharge units for the atmospheric environment.

(1) The annual discharge of one or several major pollutants of waste gas is greater than the screening discharge limit set by the municipal environmental protection department in charge of districts.

The main pollutant indicators of exhaust gas refer to sulfur dioxide, nitrogen oxides, soot and volatile organic compounds. The screening discharge limit is determined according to the environmental quality status, and the total pollutant discharge shall not be less than 65% of the total industrial discharge in the administrative region.

(2) All large and medium-sized enterprises that have factual discharges and belong to the key supervision industry of waste gas pollution. Sludge drying

The key regulated industries for waste gas pollution include: thermal power generation, thermal power production and cogeneration, cement manufacturing with cement clinker production, steel smelting with sintering, pelletizing, and ironmaking processes, non-ferrous metal smelting, petroleum refining and processing, Coking, ceramics, flat glass manufacturing, chemical, pharmaceutical, coal chemical, surface coating, packaging and printing industries, etc.

All localities can increase relevant waste gas pollution key supervision industries according to local actual conditions.

(3) Units that discharge waste gas pollutants that have issued pollutant discharge permits that implement key management of pollutant discharge permits.

(4) Enterprises and institutions that discharge toxic and hazardous air pollutants (for details, see the list of toxic and hazardous air pollutants issued by the Ministry of Environmental Protection); operators of centralized solid waste incineration facilities.

(5) Enterprises and institutions that undertake pollution control tasks in the air pollution control target responsibility letter of the local people's government at or above the city level with districts.

(6) Environmental protection warning companies, companies with poor environmental protection, large or more sudden atmospheric pollution incidents within three years, or major social impacts due to atmospheric pollution problems, or companies that have not been rectified and resolved by environmental protection authorities at all levels unit.

Article 7 Enterprises and institutions that meet one of the following conditions shall be included in the list of key monitoring units for soil environmental pollution.

(1) All large and medium-sized enterprises that have facts of pollutant discharge and belong to the key supervision industry of soil pollution.

The key supervision industries for soil pollution include: non-ferrous metal mining, non-ferrous metal smelting, petroleum exploration, petroleum processing, chemical industry, coking, electroplating, tanning, etc.

Localities can increase relevant soil pollution key supervision industries according to local actual conditions.

(2) Enterprises and institutions that produce more than 100 tons of hazardous waste annually.

(3) Enterprises and institutions that hold a hazardous waste business license and engage in the storage, disposal and utilization of hazardous waste.

(4) Enterprises and institutions that operate and maintain domestic waste landfills or incineration plants, including closed waste landfills.

(5) Enterprises and institutions that have occurred large or more sudden solid waste, hazardous waste and groundwater environmental pollution incidents within three years, or caused significant social impacts due to soil environmental pollution.

Article 8 Enterprises and institutions that meet one of the following conditions shall be included in the list of key pollutant discharge units for acoustic environment.

(1) Industrial enterprises with excessive noise emission in areas where noise-sensitive buildings are concentrated.

(2) Enterprises and institutions that are listed for supervision due to noise pollution.

Article 9 Enterprises and institutions that meet one of the following conditions shall be included in the list of other key pollutant discharge units.

(1) The discharge of pollutants from chemistry, medicine, biological laboratories at or above the provincial level, and hospitals at or above the second level with the functions of testing, analysis, and testing has caused widespread concern in the society or may have a greater impact on environmentally sensitive areas Enterprises and institutions.

(2) Enterprises and institutions that have caused major social impacts due to other environmental pollution problems, or have been designated as large or above environmental risk levels by the risk assessment of emergent environmental incidents.