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Latest summary! 20 Hot Questions and Answers on Hazardous Wastes


Time:

2022-10-20

Ministry of Ecology and Environment's Q&A on 20 hot spots of hazardous wastes.

1. Are oil tank sludge and waste residue of oil separator hazardous wastes?
2. Is the nickel metal hydride battery a hazardous waste?
3. Is the waste generated by the enterprise laboratory hazardous waste?
4. Is the oily rag produced by the enterprise a hazardous waste?
5. Is the waste tin slag generated after tin plating hazardous waste?
6. Is water-based paint residue not a hazardous waste?
7. Is the whole piece of waste circuit board not disassembled hazardous waste?
8. Is the packaging container of chemical raw materials used in production hazardous waste?
9. Is the insulation cotton made of aluminum silicate and glass wool hazardous waste?
10. Is waste insulation cotton hazardous? What is the waste code?
11. Is one thousandth of the ion exchange resin in the activated carbon hazardous waste?
12. Should the dust from stainless steel electric furnace steelmaking be included in HW21 or HW23?
13. Is the oily sewage generated by offshore ships a hazardous waste?
14. Is the acid in waste lead-acid batteries managed as waste acid or lead containing waste?
15. Is the waste copper wire and waste gouging wire containing cutting fluid hazardous waste? What is the waste code?
16. "Waste alkali liquor from cooking and pulping during alkaline pulping" refers to black liquor or white liquor of papermaking?
17. Are the stretching ointment and waste packaging barrels produced by cleaning the machine dangerous wastes?
18. Is the packaging container of MDI (diphenylmethane diisocyanate) hazardous waste?
19. Is the waste and leftover materials produced by unsaturated polyester resin after injection molding hazardous waste?
20. If the solidified fly ash of the domestic waste incineration power plant is stored (meeting the requirements for entering the domestic waste landfill site in the Standard for Pollution Control of Domestic Waste Landfill Site (GB16889)), should the hazardous waste operation license be obtained?

 

Please see the authoritative reply of the competent department of ecological environment to the above questions:

 

1. Are oil tank sludge and waste residue of oil separator hazardous wastes?

According to the National Catalogue of Hazardous Wastes, the sludge from mineral oil tanks and the sludge from oil-water separation facilities are hazardous wastes. The specific code of sludge in mineral oil tank is 900-221-08, and the specific code of oily scum, sludge and oil slick in oil-water separation facilities is 900-210-08.

 

2. Is the nickel metal hydride battery a hazardous waste?

According to the National Catalogue of Hazardous Wastes, discarded lead batteries, nickel cadmium batteries and mercury oxide batteries are hazardous wastes. Nickel metal hydride battery is not listed temporarily.

 

3. Is the waste generated by the enterprise laboratory hazardous waste?

The waste produced by the enterprise laboratory is hazardous waste. The code in the National Catalogue of Hazardous Wastes is 900-047-49.

 

4. Is the oily rag produced by the enterprise a hazardous wa ste?

According to the National Catalogue of Hazardous Wastes, the exemption condition for waste oily rags is not classified collection, and the exemption content is that the whole process is not managed as hazardous waste, but the property of hazardous waste is not changed. In addition, according to the classification requirements of domestic waste and solid waste management requirements, such waste shall not be intentionally mixed with domestic waste.

 

5. Is the waste tin slag generated after tin plating hazardous waste?

The classification of wastes in the list of hazardous wastes shall be based on the characteristics of wastes. The waste tin slag generated in the production process of the circuit board industry shall be treated according to 336-059-17 in the National List of Hazardous Wastes.

 

6. Is water-based paint residue not a hazardous waste?

In the National Catalogue of Hazardous Wastes, "900-252-12" Wastes generated in the process of painting and painting with paint (excluding water-based paint) and organic solvent ", in which" excluding water-based paint "refers to water-based paint.

Whether water-based paint slag belongs to hazardous waste shall be determined after identification in accordance with the Identification Standard for Hazardous Wastes (GB5085.1-GB5085.7), Technical Code for Identification of Hazardous Wastes (HJ298) and other standards.

 

7. Is the whole piece of waste circuit board not disassembled hazardous waste?

According to the National Catalogue of Hazardous Wastes, waste circuit boards (including waste circuit boards with or without components removed), and waste CPU, video card, sound card, memory, capacitor containing electrolyte, gold and other precious metal connectors generated during the disassembly of waste circuit boards are all hazardous wastes, and the code is 900-045-49.

 

8. Is the packaging container of chemical raw materials used in production hazardous waste?

According to the National Catalogue of Hazardous Wastes, hazardous chemicals listed in the Catalogue of Hazardous Chemicals (excluding hazardous chemicals that only have the physical hazard of "pressurized gas" in the catalogue) that have been declared to be discarded by the owner, or that have not been declared to be discarded but have been illegally discharged, dumped, utilized and disposed, and that have been collected or received by relevant departments according to law and need to be destroyed, are all hazardous wastes.

Therefore, the packaging container of chemical raw materials used in production belongs to hazardous waste, and the code is 900-041-49.

 

9. Is the insulation cotton made of aluminum silicate and glass wool hazardous waste?

If the insulation cotton is made of aluminum silicate and glass wool, the hazardous waste shall be identified according to the fineness and toxicity of the fiber.

 

10. Is waste insulation cotton hazardous? What is the waste code?

If the waste insulation cotton is asbestos, it is a hazardous waste. It is "asbestos waste (900-032-36) generated from the maintenance and replacement of facilities containing asbestos materials such as diaphragms and thermal insulators and the replacement of vehicle brake linings" in the directory.

 

11. Is one thousandth of the ion exchange resin in the activated carbon hazardous waste?

According to the National Catalogue of Hazardous Wastes, waste activated carbon generated in the production process of the chemical industry belongs to hazardous waste, code 900-039-49; The waste ion exchange resin belongs to hazardous waste, code 900-015-13.

 

12. Should the dust from stainless steel electric furnace steelmaking be included in HW21 or HW23?

The dust from stainless steel steelmaking mainly contains zinc, so it should be classified as HW23.

 

13. Is the oily sewage generated by offshore ships a hazardous waste?

In accordance with the relevant provisions of the Law on the Prevention and Control of Water Pollution, the discharge of oily sewage and domestic sewage by ships shall conform to the standards for pollutant discharge by ships.

When entering inland rivers and ports, ocean shipping vessels shall observe the standards for pollutant discharge by inland ships. Residual and waste oil from ships shall be recovered and shall not be discharged into water bodies.

The Provisions on Port Operation and Management of the Ministry of Communications and other regulations require that those who provide ships with facilities such as docks, lighterage anchorages, buoys, etc. should have the corresponding capacity to receive pollutants and wastes from ships and the corresponding capacity to deal with pollution emergencies, including necessary facilities, equipment and apparatus.

Therefore, the oily wastewater from the ship shall be delivered to the corresponding treatment facilities at the wharf for treatment according to the regulations. The waste mineral oil generated from sewage treatment by the corresponding treatment facilities at the wharf belongs to hazardous waste and must be treated by a qualified unit.

 

14. Is the acid in waste lead-acid batteries managed as waste acid or lead containing waste?

HW31 lead containing waste in the National Catalogue of Hazardous Wastes specifies that waste lead batteries in non specific industries and waste lead plates, waste lead pastes and acid solutions generated during the disassembly of waste lead batteries belong to HW31, and the specific code is 900-052031.

 

15. Is the waste copper wire and waste gouging wire containing cutting fluid hazardous waste? What is the waste code?

Waste cutting fluid is listed in the National Catalogue of Hazardous Wastes. The waste category is HW09, and the hazardous characteristic is toxicity. The waste copper wire and waste gouging wire mixed with cutting fluid shall be managed as hazardous waste (see No. 9 of exemption list).

 

16. "Waste alkali liquor from cooking and pulping during alkaline pulping" refers to black liquor or white liquor of papermaking?

The black liquor and white liquor from alkaline pulping (caustic soda and sulfate) belong to waste alkali liquor, which belongs to 221-002-35 waste in the National Catalogue of Hazardous Wastes.

 

17. Are the stretching ointment and waste packaging barrels generated from cleaning the machine table hazardous wastes?

The stretching oil and paste produced by cleaning the machine are hazardous wastes. The waste packaging barrels generated after the use of stretching oil and stretching paste belong to hazardous waste (classified according to the code of waste mineral oil and waste packaging contaminated with mineral oil generated in the process of production, sales and use, belonging to 900-249-08 waste).

 

18. Is the packaging container of MDI (diphenylmethane diisocyanate) hazardous waste?

Diphenylmethane diisocyanate (MDI) was listed in the Catalogue of Hazardous Chemicals (2015), CAS No. 26447-40-5.

The discarded packaging containers of hazardous chemicals listed in the Catalogue of Hazardous Chemicals after use belong to hazardous wastes.

 

19. Is the waste and leftover materials produced by unsaturated polyester resin after injection molding hazardous waste?

The waste leftovers generated from the molding materials of unsaturated polyester resin dough after thermal curing in the injection molding machine (at a temperature of about 100 ℃) are not hazardous wastes.

 

20. If the solidified fly ash of the domestic waste incineration power plant is stored (meeting the requirements for entering the domestic waste landfill site in the Standard for Pollution Control of Domestic Waste Landfill Site (GB16889)), should the hazardous waste operation license be obtained?

According to the National Catalogue of Hazardous Wastes, domestic waste incineration fly ash belongs to hazardous waste, code 772-002-18. According to its appendix "List of Exemption Management of Hazardous Wastes", the link of exemption management of domestic waste incineration fly ash is transportation and disposal.

Therefore, the unit responsible for the storage of fly ash needs to apply for a hazardous waste operation license.

According to 6.2 of the General Principles for the Identification of Hazardous Wastes, unless otherwise specified in relevant national regulations and standards, solid wastes generated after the disposal of hazardous wastes with toxic and hazardous characteristics are still hazardous wastes.

Therefore, the domestic waste incineration fly ash storage unit after solidification and chelation shall obtain the hazardous waste operation license in accordance with the Measures for the Administration of Hazardous Waste Operation License.

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