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Journal of Applied Sciences
  Year: 2005 | Volume: 5 | Issue: 4 | Page No.: 647-650
DOI: 10.3923/jas.2005.647.650
Assessment of Effluent Quality at Glen Valley Wastewater Treatment Plant
E. Nkegbe, V. Emongor and I. Koorapetsi

Abstract:
The effluent treatment process at Glen Valley Wastewater Treatment Plant was assessed weekly in terms of efficiency over 29 weeks. During this period there were significant removals of COD, BOD5, TSS, NH3-N and TKN. Average reduction of COD, BOD5, TSS, NH3-N and TKN were, 97.7, 99, 98.2, 95.5 and 93.6%, respectively. All these levels of reduction in the final effluent met the target discharge guidelines in Botswana and the treatment plant design discharge guidelines. There was a significant removal of ortho-phosphate (81.4%) in the final effluent, however, the weekly average of 6.82 mg L-1 was higher than the expected discharge of effluent to the environment guideline of <1 mg L-1. There was an increase in NO3- level in the treated effluent (82.2%) over the influent but the final effluent load of 2.7 mg L-1 was below the expected discharge level of 10 mg L-1.
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How to cite this article:

E. Nkegbe, V. Emongor and I. Koorapetsi , 2005. Assessment of Effluent Quality at Glen Valley Wastewater Treatment Plant. Journal of Applied Sciences, 5: 647-650.

DOI: 10.3923/jas.2005.647.650

URL: https://scialert.net/abstract/?doi=jas.2005.647.650

 
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