Study of common and modern methods of disinfection and disposal of hazardous hospital waste

Subject Areas : Water and Environment

Farnoosh Bagheri zonoz ¹ , Afsaneh Shahbazi ²

1 - MSc. Student, Environmental Sciences Research Institute, Shahid Beheshti University, G.C., Tehran
2 - Assistant Professor, Environmental Sciences Research Institute, Shahid Beheshti University, G.C., Tehran.

Received: 2013-04-14 Accepted : 2013-10-31 Published : 2013-12-22

Keywords: Hospital waste, Management, Sterilization, Disposal,

Abstract :

The management of hospital waste is to be a major challenge, particularly, in the most of developingcountries in the world. Lack of identify, isolation, storage and proper disinfection of hazardoushospital wastes causes health and pollution problems in the environment. In according to WorldHealth Organization (WHO), dangerous hospital wastes were divided to eight groups includesinfectious waste, pathology, chemical, toxic, sharp things, medical waste with the content of heavymetals, pressurized containers and radioactive. Disinfection method of dangerous hospital wastes mustbe affordable, practicable, and chosen compatible with environment rules. Common technology ofdisinfection and treatment such as burning, autoclave and chemical disinfectant are practicable andrecommendable in the most of countries all over the world such new technologies were mentionedmicrowave and super critical fluid carbon dioxide. The selection of new method on based supercritical fluid carbon dioxide (SCFCO2) can decrease the infection of hazardous hospital wastes. It is notonly the adaptable method with the environment but also a compatible method of environment thatdecreases contact with infectious wastes, work force and cost. Therefore it can be proposed as a neweffective method.

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