Selecting the Appropriate Wastewater Treatment System Using Analytic Hierarchy Process (AHP).

Document Type : Research articles

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Department of Civil Engineering, Higher Institute of Engineering, El Shorouk Academy, Nakheel District, El Shorouk 11837, Egypt

Abstract

Water shortage is the biggest problem facing the world currently. Therefore, there is a strong focus on reusing treated wastewater and preserving available water sources from pollution. In order for it to be used well, the appropriate type of wastewater treatment method must first be chosen. The choice of the type of treatment method done by decision makers. Therefore, a selection wastewater treatment method was developed by using Analytical hierarchy process (AHP) to help decision makers take the optimal choice. The regions were divided into urban areas and rural areas, where the choice was from 10 different treatment systems of previously used. Four major with 10 sub-main selection criteria were established. We concluded that the best treatment system in the case of rural areas is Bio-block system, as it obtained a percentage of 11.54% where the most governing criteria of selection were complexity of the operation (T1) and energy consumption (T3). However Moving Bed Biofilm Reactor (MBBR) was the optimal choice in the case of urban areas and its percentage was 11.98% while the treatment system selection criteria were effluent quality (V2) and Amount of sludge (T2) because of the high standard of living and properly reuse of treated wastewater.

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