Is the sludge from wastewater biochemical treatment considered solid waste?

Sludge from wastewater biochemical treatment is not considered hazardous waste. The following wastewater treatment sludge is classified as hazardous waste:

1. Refer to the "National Hazardous Waste List", waste code 263-006-04: produced during the production of vinyl bisdithiocarbamic acid and its salts filtration, evaporation and centrifugal separation residues and wastewater treatment sludge; dust and floor cleaning waste collected by dust collection (removal) devices in product grinding and packaging processes;

2. Refer to the "National Hazardous Waste List" , Waste code 263-011-04: Wastewater treatment sludge generated during the production of pesticides;

3. Refer to the "National Hazardous Waste List", Waste code 201-001-05: Use pentachlorophenol for Wastewater treatment sludge produced during the wood preservative process, as well as waste wood fragments contaminated with the preservative produced during the wood preservative process;

4. Refer to the "National Hazardous Waste List", waste code 201-002 -05: Wastewater treatment sludge generated during the use of creosote for wood preservatives, and waste wood fragments contaminated with this preservative generated during the wood preservative treatment process;

5. Refer to the "National Hazardous Waste" List", Waste Code 201-003-05: Wastewater treatment sludge generated during the wood preservation process using inorganic preservatives containing arsenic, chromium and other inorganic preservatives, as well as waste wood fragments contaminated with the preservatives generated during the wood preservative treatment process; < /p>

6. Refer to the "National Hazardous Waste List", waste code 266-002-05: wastewater treatment sludge generated during the production of wood preservative chemicals;

7. Refer to the "National Hazardous Waste List" "List of Hazardous Wastes", waste code 900-409-06: Wastewater treatment scum and sludge (excluding wastewater biochemical treatment sludge) generated during the regeneration treatment of wastes listed in 900-401-06;

< p>8. Refer to the "National Hazardous Waste List", waste code 900-410-06: 900-402-06 and 900-404-06 waste water treatment scum and sludge generated during the regeneration treatment process (not Including wastewater biochemical treatment sludge);

9. Refer to the "National Hazardous Waste List", waste code 336-002-07: quenching wastewater treatment sludge produced by using cyanide for metal heat treatment;

10. Refer to the "National Hazardous Waste List", waste code 252-010-11: wastewater treatment sludge generated during coking and coal tar processing and utilization (excluding wastewater biochemical treatment sludge);

11. Refer to the "National Hazardous Waste List", waste code 450-002-11: wastewater treatment sludge generated in the gas production process (excluding wastewater biochemical treatment sludge).

Extended information

With reference to Article 2 of the "National Hazardous Waste List", solid waste (including liquid waste) with one of the following circumstances is included in this list:

(1) Having one or more hazardous properties such as corrosiveness, toxicity, flammability, reactivity or infectivity;

(2) Hazardous properties are not excluded and may be harmful to the environment. Or it causes harmful effects on human health and needs to be managed as hazardous waste.

With reference to Article 3 of the "National Hazardous Waste List", medical waste is classified as hazardous waste.

With reference to Article 4 of the "National Hazardous Waste Catalog", chemicals listed in the "Hazardous Chemicals Catalog" are hazardous wastes after they are discarded.

With reference to Article 17 of the Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste, units and individuals that collect, store, transport, utilize, and dispose of solid waste must take measures to prevent scattering, Measures to prevent loss, leakage or other environmental pollution; solid waste shall not be dumped, stacked, discarded or scattered without authorization.

It is prohibited for any unit or individual to dump or stack solids in rivers, lakes, canals, channels, reservoirs and their beaches and banks below the highest water level, and other places where dumping or stacking of waste is prohibited by laws and regulations. waste.

Alxa League Ecological Environment Bureau - Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste

Liupanshui City Health Bureau - National Hazardous Waste List