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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-1472
Vol. 5, No. 1, 2008, pp. 107-118 		Bioline Code: st08013
Full paper language: English
Document type: Research Article
Document available free of charge

International Journal of Environment Science and Technology, Vol. 5, No. 1, 2008, pp. 107-118

 en Impact of fertilizer plant effluent on water quality
Obire, O.; Ogan, A. & Okigbo, R. N.

Abstract

The impact of National Fertilizer Company of Nigeria outfall effluent on the physicochemistry and bacteriology of Okrika creek was investigated during the sampling period from May to December, 1998. The National Fertilizer Company of Nigeria outfall effluent, the Okrika creek water and the Ikpukulubie creek (control) water samples were collected. The physico-chemical parameters analyzed for all the samples included temperature, pH, total chloride, total dissolved solids, dissolved oxygen, conductivity, free ammonia, total phosphate, urea, zinc and iron, while the bacteriological determinations were total culturable aerobic heterotrophic bacteria count and identification of representative isolates. The Okrika creek recorded higher concentrations for all the physico-chemical parameters and bacteria load than the control creek. The higher values of pH, Free NH3, urea, TDS and the conductivity of the National Fertilizer Company of Nigeria outfall effluent above the FEPA standards reflect the poor effluent quality generated by National Fertilizer Company of Nigeria. The bacteria species isolated from the samples include Aerococcus viridans check for this species in other resources , Alcaligenes faecalis check for this species in other resources , Bacillus cereus check for this species in other resources , Citrobacter freundii check for this species in other resources , Escherichia coli check for this species in other resources , Klebsiella pneumoniae check for this species in other resources , Proteus vulgaris check for this species in other resources , Pseudomonas aeruginosa check for this species in other resources , Serratia marcescens check for this species in other resources and Staphylococcus aureus check for this species in other resources . In general, the investigation revealed that there was an extremely adverse impact on the physico-chemical and bacteriological water quality characteristics of the Okrika creek as a result of the discharge of poor quality effluent from National Fertilizer Company of Nigeria operations.

Keywords
Fertilizer, outfall effluent, physiochemical, bacteriological parameters

 
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