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2014 (Vol. 7, Issue: 9)
Article Information:

Design, Construction and Performance Evaluation of a Model Waste Stabilization Pond

C.C. Egwuonwu, V.C. Okafor, N.C. Ezeanya, C. Nzediegwu, A. Suleiman and O. Uzoigwe
Corresponding Author:  C.C. Egwuonwu 

Key words:  Construction, design, evaluation, model, performance, waste stabilization pond,
Vol. 7 , (9): 1710-1714
Submitted Accepted Published
July 31, 2012 September 17, 2012 March 05, 2014
Abstract:

The study aimed at the design, construction and performance evaluation of a model Waste Stabilization Pond (WSP). The WSP comprised of one facultative pond and three maturation ponds all in series. The influent of the WSP after filtration through the lined sandy loam media (obtained from the premises of Federal University of Technology, Owerri, Nigeria) had the BOD reduced to 22 mg/L from 356 mg/L indicating a 93.8% removal level. A faecal coli form count (fc) of the influent sample gave 1108 fc/100 mL, whereas the effluent gave 10 fc/100 mL which was 99.9% fc removal. The value of 150 mg/L of the Total Suspended Solids (TSS) for the influent was reduced to 26 mg/L for the effluent after treatment. It was concluded that the effluent from the WSP was within the limits of Federal Environmental Protection Agency (FEPA) standard of 30 mg/L for TSS, 30 mg/L for BOD5 and 400 fc/100 mL for faecal coli form thus making the waste water safe for discharge into surface water as well as its use for irrigation after treatment. The sandy loam soil media was found to be non-promising earlier in the removal process until it was lined with polyethylene material. A clay media was therefore recommended.
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  Cite this Reference:
C.C. Egwuonwu, V.C. Okafor, N.C. Ezeanya, C. Nzediegwu, A. Suleiman and O. Uzoigwe, 2014. Design, Construction and Performance Evaluation of a Model Waste Stabilization Pond.  Research Journal of Applied Sciences, Engineering and Technology, 7(9): 1710-1714.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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