Biomedical waste treatment plantSubmitted by:Kritika SarkarB.D.S final year
Certificate This is to certify that this is a bonafide work of Kritika Sarkar of B.D.S, IV year roll no.______ and has completed the visit report on time.Verified by: Date:_________ _________Dept. ofCommunity Dentistry.HDC&H
Introduction. Biomedical waste Sources of biomedical wastes Segregation of wastes (at pt of disposal). Incineration : ◦ Definition. ◦ Types of incinerators ◦ Components ◦ Schematic representation of Processes involved. ◦ Effluent & air emissions. Conclusion.
I owe my gratitude to Dr. Vinay Sureshan & Dr. Nalini Saxena (Dept. of Public health Dentistry), for there enormous support , guidance & providing the opportunity for a great learning experience.I would also like to extend my gratefulness to the my seniors and colleagues for supporting me for the preparation of this report.
We the students of B.D.S. IV year, HDC&H, visited Biomedical waste disposal plant- Elite Engineers, Kathonda. We interacted with the in charge, Mr. Shukla and workers, who explained how the waste was collected from different hospitals & nursing homes in color coded plastic bags and how all the procedures were carried out. We also visited different sections of the plant. We also learned about the pre-disposal measures taken before land filling.
According to biomedical waste (managing &handling) rules, 1998 India, “Bio-medical waste” means any waste, which is generated during the diagnosis, treatment/ immunization of human-beings/ animals, or in research actives pertaining thereto of in the production or testing of biologicals.
Government/private hospitals Nursing homes Physician/dentist office or clinic Dispensaries Primary health care centers Medical research and training centers Animal/slaughter houses Labs/research organizations Vaccinating centers Bio tech institutions/production units
Old –The process of burning, setting fire to or destroying New –An engineered process using controlled flame combustion to thermally degrade waste materials
ROTARY KILN FLUIDIZED BED LIQUID INJECTION MULTIPLE HEARTH CATALYTIC COMBUSTION WASTE-GAS FLARE DIRECT-FLAMEWe observed the double chambereddirect flame type of incinerator which isadequate for combustion of all infectivewaste but the disadvantage is that thereis incomplete combustion of Cytotoxicwastes.
Waste pre-treatment - pre- heating, autoclaving & shredding Waste loading systems – conveyors, hoppers, sprayers, manual, etc. Burner management system Combustion chambers Air pollution control device Ash and slough disposal
This consists in sorting, separation, size reduction and sieving technologies in varying configurations to achieve a mechanical separation of waste fractions into potentially useful products and/or streams suitable for biological processing. We saw a shredder and a segregating unit for such type of treatment. Also the plastics and glass wares were subjected to autoclaving before shredding.
The waste loading was manually done in the plant. In bigger plants is carried out by conveyors, hoppers or sprayers.
The chamber’s base had burners which were fueled by diesel.
Collection of toxic emissions from the combustion chamber Emissions treated with purified water Slough comes to the surface of water Slough is separated Water resent to treatment tankswith alum, jaggery & cattle excreta.
The residues from the combustion chamber and the (dried) slough in collected and sent to Indore, for land filling.
The industry visit was a great learning experience where we could see and understand the step by step processes well.