Abstract
Leachate generated from Municipal Solid Waste (MSW) landfill may cause various negative impacts, therefore it should be treated properly in a Leachate Treatment Plant (LTP). The paper aims to select a more sustainable LTP system in Indonesia by applying Analytic Network Process (ANP) as multicriteria analysis approach. 5 alternative LTP systems were analyzed using 5 criteria namely economic, environmental, social, technical, and institutional capacity with a total of 25 sub-criteria. Total 36 respondents from municipality staffs, academics, professionals, and LTP operators were interviewed by adopting pair wise comparison. The results from Driving Dependence Power Analysis (DDPA) showed that sub-criteria for operating costs (E2), maintenance costs (E3), processing effectiveness (T1) and monitoring needs (T3) have the highest dependence power value. Sub-criteria of the operational cost (E2) and the availability of regulations (K2) have the highest driving power value. Main considerations for selecting LTP system at a final disposal site by respondents were economic criteria (weight 0.3219) and water protection sub-criteria (L2, weight 0.17). Top priority of the technology chosen by respondents were Alternative#1 consist of Anaerobic, Facultative and Maturation ponds and Biofilter.
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