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Investigation of Reaction Rates for Stabilization Pond Operation in Nigeria

Authors: Bilewu SO, Olofintoye OO, Iji JO

ABSTRACT

Waste stabilization ponds are engineered and secondary treatment systems that are rapidly receiving global attention for wastewater treatment. Compared to conventional treatment plants, a waste stabilization pond is essentially an earth basin which retains wastewater within which natural stabilization process occurs. This highly effective and inexpensive method is favored by hot tropical climate but its use in Nigeria is not widespread as planned centralized sewage disposal schemes are not common. An attempt has been made in this study to determine the variation in reaction rate constants for model ponds system. By studying the existing wastewater quality, temperature of the environment; the influent and effluent were tested for chemical oxygen demand (COD), biochemical oxygen demand (BOD), dissolved oxygen (DO) etc among other parameters. This study went further to present a variation of reaction rates for stabilization ponds in Nigeria. A contour reaction rate constant (RRC) data map was generated. The study results show the reaction rate constant is estimated to be between 0.1815 and 0.2067 at average temperatures. It is expected that a slight deviation is possible for operation of life size ponds.


Affiliations: Department of Water Resources and Environmental Engineering, Faculty of Engineering and Technology, University of Ilorin, PMB 1515, Ilorin, Nigeria
Keywords: Waste Stabilization Ponds, Reaction Rate, Wastewater, Organic Loading, Detention Time, Effluent
Published date: 2019/12/30

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ISSN: 2635-3342 (Print)

ISSN: 2635-3350 (Online)

DOI: In progress

ISI Impact Factor: In progress

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License



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