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- 1. LABORATORY WASTE MANAGEMENT Tuba Arif Syeda Rafia Shakoor Alisha Moazzam 1
- 2. What is laboratory waste Laboratory waste is waste that is generated from laboratories in industry and in educational centers and universities 2
- 3. Importance The waste, if not disposed of correctly, could pose a danger to the environment and people including; Dostors Nursing staff Housekeepers Patients & visitors Community Environment 3
- 4. Main Aim Strategies for managing laboratory waste aims: To maximize safety Minimize environmental impact 4
- 5. Categories Hazardous Clinical Biological Electrical Laboratory 5
- 6. Sources of healthcare waste Govt. hospitals Healthcare hospitals Nursing homes Physician’s office or clinic Dentist’s office or clinic Research laboratories Dispensaries Mortuaries Blood bank and collecting centers 6
- 7. Classification of hospital waste 7 https://image.slidesharecdn.com/biomedicalwastemanagement- 150412055819-conversion-gate01/95/bio-medical-waste- management-7-638.jpg?cb=1428818383
- 8. Hazardous Waste Any waste that directly or indirectly represents a threat to human health or to the environment by introducing one or more of the following risks Explosion or fire Infections Pathogens parasites or their vectors 8
- 9. Chemical waste Classification of dangerous goods and substances: Class 1 Explosives Class 2 Gases Class 3 Flammable liquids Class 4 Flammable solids Class 5 Oxidizing substances and organic peroxides 9
- 10. Chemical waste Class 6 Toxic and infectious substances Class 7 Radioactive Substances Class 8 Corrosives Class 9 Other miscellaneous 10
- 11. Biological waste Waste generated from Biologically- cultured stocks and plates Molecular material Blood, animal and plant tissues All sharps e.g. glass implements, needles, syringes, blades, glass Pasteur pipettes 11
- 12. Clinical waste Any waste that consists wholly or partly of: Human or animal tissue Blood or bodily fluids Excretions Drugs or other pharmaceutical products Swabs or dressings Syringes, needles or other sharp objects 12
- 13. Special waste Ethidium bromide Electrophoresis gels<0.1% - trash Electrophoresis gels>0.1% - biohazard box EtBr solution-charcoal filtration Mercury Spilled-pooled droplets, gloves & paper- puncture resistant container –label mercury spill debris 13
- 14. Waste management strategy 14 Categorization Collection & segregation of waste Proper packaging Proper storage of waste Effective labeling Transportation Treatment & disposal
- 15. Categories of biomedical waste 15 https://image.slidesharecdn.com/laboratorysafety-130924161442- phpapp02/95/laboratory-safety-biomedical-waste-its-management-18- 638.jpg?cb=1399595018
- 16. Categories of biomedical waste 16 https://image.slidesharecdn.com/laboratorysafety-130924161442- phpapp02/95/laboratory-safety-biomedical-waste-its-management-18- 638.jpg?cb=1399595018
- 19. Packaging of waste Place hazardous waste in sealable containers Containers must be kept closed Do not leave a hazardous waste container with a funnel in it Container should not react with the waste being stored Similar compatible wastes can be mixed 19
- 20. Storage of waste Waste collected and stored in thick non- corrosive plastic bags or containers of specific color code Waste in bags and containers should be kept in separate area, room or building (not more than 48 hours) Healthcare waste should be transported within the hospital or other facilities by means of handcart wheeled trolley 20
- 23. Treatment and disposal techniques Incineration Chemical disinfection Wet and dry thermal treatment land filling Recycling Worm composting 23
- 24. Incineration Burning waste at 1000 degree Celsius Organic and combustible waste→ inorganic and incombustible waste fly to ash Collection of ash Dumping in community landfills 24
- 25. Chemical disinfection Best for treating liquid waste Bleaching powder, alcohol,glutareldehyde, quaternary ammonium compounds 25
- 26. Wet thermal heating (autoclave) Penetration of steam in waste At specified temperature and pressure for specific period of time 26
- 27. Dry thermal treatment Also known as screw feed technology Waste is treated in rotatory auger Reduced by 80% by volume and 20-30% by weight Infectious waste and sharps Not used for cytotoxic or radioactive wastes 27
- 28. Land filling Sanitary landfills are specially constructed for disposal of nonbiodegradable infectious hospital wastes Should have impermeable base of clay and pebbles Frequent spray of insecticide 28
- 29. Worm composting Biodegradable general waste from areas like kitchen, dining places, cafeteria Rectangular pit of 1m deep bound by brick wall Introduction of few 100 worms Regular spray of water 29
- 30. Latest techniques 30 Microwave irradiation Plasma torch technology Hydroclave
- 31. Microwaving Heat is generated during bombardment of EM waves Highly efficient Cost effective 31
- 32. Plasma torch technology It consists of a flame at about 2200 degree to 13,900 degree Celsius converts garbage into plasma Dispose biohazarduous waste safely Extremely costly Need proper setup 32
- 33. Hydroclave An advance autoclave method Completely sterilize the waste Very low operating cost 33
- 34. Don’ts Put the waste indiscriminately Put wrong bags in bin (adhere to the color code) Fill the bags till the neck Handle bags without gloves Drag the bag Mix non infectious waste with the infectious ones 34
- 35. Conclusion Individual participation is required Municipality and government should pay importance to disposal of waste economically PPE should be strictly followed Educating and motivating oneself 35
- 36. Refrences 36 https://www.slideshare.net/rahul05071/bio- medical-waste-management-51593353 https://www.slideshare.net/sakshamagarwal12 11/bio-medical-waste-management-46902149 https://www.acs.org/content/dam/acsorg/about/ governance/committees/chemicalsafety/waste- management-flyer.pdf http://www.phswastemanagement.co.uk/inform ation-centre/clinical-waste-segregation-and- colour-coding