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The influence of expert opinions on the selection of wastewater treatment alternatives: A group decision-making approach

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Title The influence of expert opinions on the selection of wastewater treatment alternatives: A group decision-making approach
 
Creator KALBAR, PP
KARMAKAR, S
ASOLEKAR, SR
 
Subject Wastewater treatment
Group decision-making
Multiple-attribute decision-making
Analytical hierarchy process
Life cycle assessment
ANALYTIC HIERARCHY PROCESS
OPTIMIZATION
PRIORITIES
JUDGMENTS
MATRICES
TOPSIS
AHP
 
Description The application of multiple-attribute decision-making (MADM) to real life decision problems suggests that avoiding the loss of information through scenario-based approaches and including expert opinions in the decision-making process are two major challenges that require more research efforts. Recently, a wastewater treatment technology selection effort has been made with a 'scenario-based' method of MADM. This paper focuses on a novel approach to incorporate expert opinions into the scenario-based decision-making process, as expert opinions play a major role in the selection of treatment technologies. The sets of criteria and the indicators that are used consist of both qualitative and quantitative criteria. The group decision-making (GDM) approach that is implemented for aggregating expert opinions is based on an analytical hierarchy process (AHP), which is the most widely used MADM method. The pairwise comparison matrices (PCMs) for qualitative criteria are formed based on expert opinions, whereas, a novel approach is proposed for generating PCMs for quantitative criteria. It has been determined that the experts largely prefer natural treatment systems because they are more sustainable in any scenario. However, PCMs based on expert opinions suggest that advanced technologies such as the sequencing batch reactor (SBR) can also be appropriate for a given decision scenario. The proposed GDM approach is a rationalized process that will be more appropriate in realistic scenarios where multiple stakeholders with local and regional societal priorities are involved in the selection of treatment technology. (C) 2013 Elsevier Ltd. All rights reserved.
 
Publisher ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
 
Date 2014-10-16T07:10:12Z
2014-10-16T07:10:12Z
2013
 
Type Article
 
Identifier JOURNAL OF ENVIRONMENTAL MANAGEMENT, 128844-851
0301-4797
1095-8630
http://dx.doi.org/10.1016/j.jenvman.2013.06.034
http://dspace.library.iitb.ac.in/jspui/handle/100/15517
 
Language en