Document Type : Research Article
Authors
1 0Islamic Azad University of Tonkabon, Tonkabon, Iran
2 Ph.D in Aquaculture, Young Researchers and Elite Club, Islamic Azad University, Science and Research Tehran, Tehran, Iran
Abstract
In the decades, with the advent of technology and integrated management municipal solid waste, the methods such as recycling, biological treatment, heat treatment and sanitation have been used. The sanitary landfill method is considered as one of the strategies in the integrated waste management hierarchy and is more common and less costly than other disposal methods. The purpose of this research to identify the environmental problems and environmental risks the place of landfill residue of Tonekabon city is the RASCAL method. This approach is used to assess the risk of landfills that are not so large and it has been used to determine the risk of groundwater contamination and gas accumulation and factors that have a greater impact on the pollution of the two factors. According to RASCAL and AHP, the leachate collection system criterion, has the greatest impact on the risk of groundwater contamination. In the context of the risk of gas accumulation, the criterion of the type of waste and the type of gas produced has the highest weight and therefore has the greatest impact on the increased risk of gas accumulation. The calculated risk for groundwater pollution is modest and the risk of accumulation of gas at the landfill site is low. Since the depth of the groundwater table in this place is more than 22 meters, and its distance from the consumer is more than two kilometers, but because of the source near the landfill, the risk of groundwater pollution in this area is high.
Keywords
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