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MEDICAL POLLUTION CONTROL COMMITTEE |
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Treatment for Chemical Waste:
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Sl No |
Disinfectants |
Recommended concentrations/ dilutions |
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Light contaminated |
Grossly contaminated |
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| 1. |
Sodium hypochlorite liquid bleach |
1 g/L (20 ml/L) |
10 g/L (200ml/L) |
| 2. |
Calcium hypochlorite |
1.4 g/L |
14.0 g/L |
| 3. |
Sodiumdichloro-isocyannurate (NaDCC) (Available as tablets of 1.5 g) |
1.7 g/L |
17.0 g/L |
| 4. |
Chloramine |
20 g/L |
20 g/L |
| 5. |
Tincture of iodine |
2.5% |
2.5% |
| 6. |
Polyvidone iodine (Povidone iodine (Betadine)) |
2.5% |
2.5% |
| 7. |
Glutaraldehyde |
2% |
2% |
| 8. |
Formaldehyde - Formaline |
5% (2% formaldehyde) |
10% (4% formaldehyde) |
| 9. |
Ethyl alcohol |
70% |
70% |
| 10. |
Isopropyl alcohol |
70% |
70% |
| 11. |
Methylated spirit (denatured alcohol) |
70% |
70% |
| 12. |
Hydrogen peroxide |
6% (freshly prepared) |
Not recommended |
| 13. |
Phenol (carbolic acid) |
5% |
10% |
| 14. |
Creson |
2.5% |
5% |
| 15. |
Lyson (saponified cresol) |
2.5% |
2.5% |
| 16. |
Chloroxylenol (4.8% v/v Dettol) |
4% |
10% |
| 17. |
Chloroxylenol (1+0.1%(EDTA)) |
3% |
6% |
| 18. |
Chlorhexidine (1.5% v/v Hibitane) |
5% |
10% |
| 19. |
Chlorhexidine + cetrimide (Savlon) |
- |
- |
| 20. |
Ethylene oxide gas |
450-800 mg/L |
- |
Chemical Hazardous Wastes
Waste minimization methods for general medical and surgical hospitals
| S. No. | Waste Category | Waste Minimization Method |
| 1. | Chemotherapeutic & Antineoplastics | >>Reduce volumes used >>Optimize drug container sizes in purchasing >>Return outdated drugs to the manufacturers >>Centralized chemotherapy compounding location >>Minimize waste from compounding hood cleaning >>provide spill clean ups >>Segregate wastes |
| 2. | Formaldehyde | >>Minimize strength for
formaldehyde solutions >>Minimize wastes from cleaning dialysis machines and RO units. >>Use reverse osmosis waster treatment to reduce dialysis cleaning demand >>capture waste formaldehyde >> Investigate reuse in pathology, autopsy labs |
| 3. | Photographic Chemicals | >>Return off-spac developer
to manufacturer >>Cover developer and fixes cans to reduce evaporation >>Recover silver efficiently >>Recycle waste film and paper >>Segregate and properly label radioactive wastes and store short lived wastes in isolation untill decay permits disposal in trash >>Substitute less hazardous cleaning agents, methods for solvents cleaners |
| 4. | Solvents | >>Reduce analytic volume
requirements >>Use premixed kits for tests involving solvent fixation >>Use calibrated solvent dispensers for routine tests >>Segregate solvent wastes >> Recover reuse solvents through distillation |
| 5. | Mercury | >> Substitute electronic
sensing devices for mercury containing devices >>Provide mercury spill cleanup kits and train personnel >>Recycle uncontaminated mercury wastes using proper safety control |
| 6. | Waste Anesthetic Gases | >>Empty low leakage work practices, purchase low leakage equipments, maintain equipment to avoid leakage |
| 7. | Toxic, Corrosive and Misc. Chemicals | >>Inspection and proper
equipment maintenance for ethylene oxide sterilizers >>Substitute less toxic compounds, cleaning agents >>Reduce volumes used in experiments >>Return containers for reuse, use recyclable drums >>Neutralize acid waste with basic waste >>Use mechanical handling aids for drums to reduce spills >>Use automated systems by laundry chemicals >>Use physical instead of chemical cleaning methods |