How should enterprises prevent and control pollution from the \"three wastes\"?

Preventing and controlling pollution from waste gases, waste liquids, and solid waste – this is a rather broad topic; normal chemical engineering design and environmental impact assessments already take into account the waste generated by enterprises as well as the measures taken to address it； As long as the environmental protection equipment and facilities are properly installed in accordance with the regulations, there should be no problems. As for solid waste and hazardous waste, they just need to be stored, sold, processed, and transported in strict compliance with relevant regulations ；

I. Treatment of exhaust gases: Experiments that generate small amounts of toxic gases should be conducted in fume hoods, with the toxic gases being expelled outside through ventilation systems where they can be diluted by air. For experiments that produce large amounts of toxic gases, absorption or treatment devices are necessary. Acidic gases such as nitrogen oxides and sulfur dioxide can be absorbed using alkaline solutions. Flammable organic waste liquids can be completely burned in incinerators by introducing oxygen.

II. Treatment of waste liquids: 1. Each laboratory should have containers for storing waste residues and liquids. Waste residues and liquids that pose a pollution risk to the environment should be sorted and stored in designated containers. 2. Acidic and alkaline waste liquids should be neutralized according to their chemical properties before being discharged, with the pH level adjusted to between 6 and 9. 3. Organic waste liquids should be collected together for recycling, conversion, or combustion. 4. Try to avoid using, or use as little as possible, chemical reagents containing heavy metals in experiments.

III. Disposal of waste materials: 1. Toxic waste that can degrade naturally should be buried in suitable locations. 2. Water-insoluble chemical waste must not be poured into wastewater pipes; it should be collected and burned in incinerators or treated chemically to make it harmless. 3. Broken glass and other sharp, pointed waste materials should not be thrown into trash bins; they should be collected in special waste containers for proper disposal.

Waste gas is generally treated by absorption or combustion. Wastewater treatment is difficult! For solid waste, just find manufacturers with the appropriate qualifications to handle it.

Regarding waste residues, it is necessary to find a company with the qualifications for recycling to handle their centralized collection and processing.

To prevent pollution from \"three wastes\" in enterprises, it is necessary to first strengthen the management of production technologies and equipment, eliminate leaks and losses, make full use of various resources and energies, improve the efficiency of raw material and fuel utilization, so as to generate little or no waste during the production process. Enterprises must take effective measures to treat the exhaust gases, smoke, and dust they emit, so as to reduce the levels (or amounts of emission) of toxic and harmful substances to meet the **emission standards ； The wastewater discharged by various facilities must be treated effectively on the basis of proper separation of clean and polluted water; the concentration of toxic and harmful substances in this wastewater must meet the **discharge standards or the requirements of the regional integrated wastewater treatment plant ； When the waste discharged by enterprises contains soluble toxins, it must be stored in a site equipped with leakage prevention measures; it is strictly prohibited to bury it underground or dispose of it in water bodies without treatment.

Friend on the 3rd floor, which document does these regulations come from? Or create one yourself?