Concept Selection in Wastewater Treatment Plant Design Using Analytical Hierarchy Process | Chapter 08 | Emerging Issues in Science and Technology Vol. 2
In most
Engineering designs concept selection is a critical stage of the design
process. This study focuses on the concept selection for the design of a
proposed wastewater treatment facility for a settlement (Forcados-Yokri)
located in Burutu Local Government Area (LGA), Nigeria. Three wastewater
treatment concepts (Completely Mixed Activated Sludge (CMAS), Sequencing Batch
Reactor (SBR) and Up-flow Anaerobic Sludge Blanket (UASB)) were proposed. Also,
based on seventeen sub-criteria which were grouped into four major criteria
(Environmental Impact, Social Impact, Operability and Economic/schedule), Analytical
Hierarchy Process (AHP) was applied for the selection of the best concept.
Among the seventeen sub-criteria were ten boundary conditions generated with
respect to the study area and the acceptable effluent discharge standards
(FEPA, DPR-EGASPIN & WHO).The parameter weight was done with respect to
data from literature and project stakeholders (interested parties involved in
the selection process). The total relative score with respect to the ten
sub-criteria (which also served as boundary condition) for CMAS, SBR and UASB
were correspondingly 9.11, 30.40 and 25.63 respectively. This makes SBR the
recommended choice of the three proposed wastewater treatment concepts.
Author(s) Details
Ify L. Nwaogazie
Department of Civil and
Environmental Engineering, University of Port Harcourt, Nigeria.
Oghenefejiri Bovwe
World Bank Africa Centre for
Excellence, University of Port Harcourt, Nigeria.
Levi O. Uba
Chattel Associates Nigeria
Limited, Port Harcourt, Nigeria.
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