تعيين الگوي مديريت مواد زايد جامد در منطقه شهر ري

Determination of Solid Waste Management Pattern in Shahre Rey Region

About 250 tons of municipal solid wastes are collected daily in District 20 of Tehran. The domestic wastes are divided into three groups which include : food wastes, dry wastes and hazardous wastes. Based on the qualitative analysis of the domestic wastes , the food wastes comprise 73 percent of the weight of the wastes in this district. During the present research, studies were carried out in respect to hazardous wastes which also include hospital and automobile service centers wastes. The average tonnage of daily wastes collected (hospital, repair-shop) are about 8100 kg. Shahre Rey is a suitable region for execution of the plan for separation of waste at source using of traditional factors. In this study, the method of separation of waste at source was reviewed. The result indicated that the waste comprised %25 of domestic waste and about 80% of the wastes entering the dry waste station were plastic, paper, cardboard and iron. Plastic .with less weight as compared with dried bread, yields a high profitability. In the study area , the cost of collecting for each kilo of waste was 33 Rials in year 2000 which decreased to 31.8 Rials in year 2001. The cause of reduction in the cost can be attributed to the changes in the number of workers, quality and quantity of the wastes in the region and change in the manner of waste collection and disposal. Based on the findings of this research, guidelines have been presented as follows: establishing recycling stations based on defined standards, observing all sanitary measures in respect to the functioning of the mentioned stations, promotion of the status of the local staff and recycling factors, manner of purchasing recyclable materials from the citizens, short and long-term training courses for all the personnel involved in the solid waste management for the improvement of the solid waste management status in district 20 of Tehran.