Emergency Management

Emergency Management

Selecting the optimal wastewater treatment process in an industrial research complex using AHP method

Document Type : Original Article

Authors
parviz jafari fesharaki 1
Mohsen Forughizadeh 2
1 malek ashtar university of technology
2 -
Abstract
Effluent of wastewater treatment plants as an alternative water source in many applications and restrict the uncontrolled
exploitation of high-quality water resources. Before the design and implementation of wastewater treatment plants, you
should use the methods based on scientific reasonable assumptions to determine an appropriate process of treatment. The
aim of this study is to select the optimal wastewater treatment process in an industrial research complex using multi-criteria
analysis. The present study used the Analytic Hierarchy Process (AHP) to select the optimal process of human’s wastewater
treatment plant and processes such as Septic tanks, stabilization ponds, aerated lagoons, activated sludge, trickling
filter and MBBR were assessed technically, operationally, economically and environmentally. The results showed that the
MBBR process, activated sludge, trickling filter, septic tanks, aerated lagoons and stabilization ponds with final weights
of 0.280, 0.197, 0.162, 0.133, 0.116 and 0.112 were ranked first to sixth respectively. The sensitivity analysis also showed
that the changes in weight of AHP criteria don’t show significant changes in the final result and MBBR process has been
in first place almost in all modes unless the relative weight of economic and environmental criteria are replaced. In this
case, Septic tanks were slightly higher than MBBR. According to the results, the highest priority of treatment processes
belonged to MBBR.
Keywords
Wastewater treatment
Selection of Optimum
Multi-criteria analysis methods
Analytic Hierarchy
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  • Receive Date 05 March 2018
  • Revise Date 02 January 2019
  • Accept Date 17 December 2019