Refinery effluent water treatment: An integrated approach

Abstract

This study has successfully investigated the use of an integrated approach to refinery effluent water treatment. To achieve this, a multistage system was used for the treatment of refinery effluent water from Port Harcourt Refining Company, Rivers State Nigeria. The physicochemical and microbial properties of the treated effluent water were used to assess the efficacy of the treatment process. Properties investigated include temperature, pH, chlorine content, bacterial count, chemical and biological oxygen demand, dissolved oxygen, amount of oil and grease in the water, turbidity, and the amount of metal content in the water. The results for the treated effluent water sample were pH 7.84, Turbidity 3.47NTU, Total Dissolved Solid 69.96 ppm, Total Suspended Solid 14.82 mg/L, Total salinity 29.21 ppm, Biochemical Oxygen Demand 0.65 mg/L, Chemical Oxygen Demand 1.87 mg/L, and Dissolved Oxygen 4.13 mg/L. The results showed an impact of this process on refinery effluent water treatment.