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Performance Evaluation of Petroleum Refinery Wastewater Treatment Plant

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Abstract (2. Language): 
Performance of the wastewater treatment plant (WWTP) of a petroleum refinery located in the Niger Delta region of Nigeria was evaluated. In the study, samples of the refinery’s WWTP influent and effluent were collected and analyzed weekly, using standard methods, for a period of seven weeks. The following results were obtained for the influent and effluent respectively; BOD5 138.0mg/l, 138.0mg/l; COD 350.0 mg/l, 166.7mg/l; phosphate 16.25 mg/l, 10.84 mg/l; TDS 2100.0mg/l, 2000.0mg/l; TSS 60.0mg/l, 46.6mg/l; others are phenol 7.35 mg/l, 4.70 mg/l; oil and grease 14.75mg/l, 10.0mg/l; pH 8.00, 9.38 and temperature 39.70C, 38.00C. The results obtained for the influent and effluent for each parameter were compared in order to determine the extent of reduction, and hence the treatment effectiveness of the treatment plant. Furthermore, the effluent results were compared with the Federal Environmental Protection Agency (FEPA) recommended effluent standard, to determine the required minimum treatment effectiveness. This was used as a standard for the assessment. The study revealed that the treatment system exhibited low pollutant removal efficiency or treatment effectiveness. In this regard suggestions were made on modifications to enhance performance.
FULL TEXT (PDF): 
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REFERENCES

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