The basic principles of laboratory waste safety treatment include timely treatment, classified treatment, centralized collection, fixed-point storage, clear identification, special person responsible, etc.
1. Deal with it in time
The waste generated in the experiment should be treated in time, and the treatment process should be formed into a system. The idea and system of "treat as you produce" should be implemented to reduce the time of diffusion and pollution.
2. Classification processing
Laboratory waste is complex and diverse, so it should be reasonably classified according to the established waste classification standards, and treated safely on a regular basis. And chemical reaction or cross pollution may occur between different wastes, which will increase the probability of pollution. Therefore, secondary pollution should be prevented.
3. Centralized collection and fixed point storage
The laboratory is equipped with designated waste collection sites and rooms with different functions, including solid waste temporary storage room, waste liquid temporary storage room and other waste temporary storage rooms.
4. The mark is clear
The general solid waste and hazardous solid waste should be stored separately in the laboratory, so at least two kinds of color bins should be set up. One is a general solid waste bin, which mainly stores general solid waste; The other is the hazardous solid waste bin, which mainly stores the solid waste generated in the laboratory in contact with hazardous chemicals and other toxic substances. The biological or medical laboratory should also be equipped with a sharp tool box with obvious identification, and a special storage place for sharp plastic waste.
5. Special person in charge
Special person must be responsible for all links from classified collection, storage and storage to treatment and disposal, and SOP and document records of corresponding links shall be established to facilitate traceability management.
How to deal with laboratory waste gas?
1: A small amount of waste gas produced in the laboratory can be directly discharged to the outside through the ventilation device.
2: HCl, hydrogen sulfide and other acidic gases can be absorbed by lye, if the concentration is very low, they can be discharged to the outdoor through the exhaust equipment.
3: Toxic gases can be treated by adsorption, absorption, oxidation, decomposition, pyrolysis, incineration and other methods.