kazhal kakaei; Ali reza Riyahi Bakhtiari; Mahdi Gholamali fard
Abstract
Background and purpose: Infiltration of leachate produced by municipal solid waste into the ground water poses a serious environmental hazard due to its high content of hydrocarbons and heavy metals. The leachate is the primary source of soil and water pollution. In this paper the risk of heavy metals ...
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Background and purpose: Infiltration of leachate produced by municipal solid waste into the ground water poses a serious environmental hazard due to its high content of hydrocarbons and heavy metals. The leachate is the primary source of soil and water pollution. In this paper the risk of heavy metals discharged from leachate in to groundwater in Hamadan landfill has been assessed using Industrial Waste Management Evaluation Model (IWEM). Methods: The concentrations of heavy metals (Cu,Pb,Ni and Cd) in leachate were determined by atomic absorption spectrophotometry and the risk of these metals discharge into groundwater was assessed by IWEM using Monte Carlo analysis. Results: Based on the obtained IWEM and EPACMTP results, geosynthetic cover was recommended for this matter. Conclusion:The most appropriate option for groundwater protection in Hamadan landfill was recommended to be geosynthetic cover (Composite linear). Owing to the high probability of leachate infiltration into groundwater, there is need to be made stricter management decisions in this regard. Also, it is necessary that IWEM is used for prevention of leachate infiltration into groundwater.
kazhal kakaei; Ali reza Riyahi Bakhtiari
Abstract
Background & Objective: Landfill which is known as the most common strategy for disposal of solid waste is considered as the latest option of solid waste management; however it cannot be removed completely. For this mean, the environmental impact assessment (EIA) is regarded as an important ...
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Background & Objective: Landfill which is known as the most common strategy for disposal of solid waste is considered as the latest option of solid waste management; however it cannot be removed completely. For this mean, the environmental impact assessment (EIA) is regarded as an important strategy to minimize its negative impacts. The aim of this study was to assess the situation of Hamedan landfill. Materials & Methods: For this object, in order to assess the environmental impact of Hamedan landfill was conducted by rapid environmental impact assessment matrix (RIAM) based on field visits and information gathering from multiple sources in 1393. Disposal option was evaluated by aferementioned method based on environmental components (physical-chemical (PC), Biological- ecological (BE), sociological-cultural (SC) and economical-operatinal (EO)). Results: The results showed that continuance of landfill current trend had the most negative scores with environmental score (ES) of -1311.. The highest and lowest negative scores belonged to the PC and SC with -768 and -40,respectively . Conclusion: In accordance with the obtained results, continuance of landfill current trend will led to the unacceptable health conditions along with severe environmental damages.