Paper Information

Journal:   JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY   SUMMER 2007 , Volume 9 , Number 2 (33); Page(s) 37 To 45.
 
Paper: 

COMPARISON OF TECHNICAL, HYGIENIC AND ECONOMIC ASPECTS OF STERILIZATION, INCINERATION AND SANITARY LANDFILL AS THE THREE AVAILABLE METHODS FOR HOSPITAL WASTES DISPOSAL IN SHAHR-E-KORD

 
 
Author(s):  OMRANI GH.A., ATABI F., SADEGHI M., BANAEI GHAH FAROKHI B.*
 
* FACULTY OF ENERGY AND ENVIRONMENT, SCIENCE AND RESEARCH BRANCH, ISLAMIC AZAD UNIVERSITY
 
Abstract: 
The control of solid wastes, specially hazardous and toxic ones including hospital wastes, is very important. Due to the prevalence of infectious diseases in the hospitals of Shahr-e-Kord, the diversity of wastes and their inappropriate disposal methods, the presence of various bacteria and viruses, the high level of pollution, the unpleasant smell, and the lack of accurate physical and chemical analysis, the present research is of importance. This study is an applied research which has been conducted for the first time over 13 months in order to compare the technical, hygienic and economic aspects of three hospital wastes disposal methods, namely, sterilization, incineration, and sanitary landfill. The results facilitate the selection of the best method considering the infrastructure and available potentials in Shahr-e Kord. The total waste produced by the four hospitals in the city is 1,500 kilograms per day, of which 45% is infectious litter. The collection of this litter is entrusted to the private sector. Through conducting physical and chemical analysis in the middle ten days of each season, the percentage of different elements in the wastes, the percentage of infectious and non-infectious wastes, the density of the wastes, and the degree of pollution in the hospital wastes were determined. In the chemical analysis, using gas-detection pipes and a special pump, the gases emitted from the incinerator stack were measured and compared with the international standards. The results indicated high levels of emission from the incinerators. The pertinent costs of each method were calculated separately. In the end and after the analysis of the results, the disinfection and sterilization methods were recommended as the best options for the disposal of hospital wastes in Shahr-e-Kord.
 
Keyword(s): HOSPITAL WASTES, PER CAPITA HOSPITAL WASTE, INFECTIOUS WASTES, DISINFECTION, STERILIZATION
 
References: 
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