PERFORMANCE EVALUATION OF WASTEWATER TREATMENT IN PETROLEUM REFINING AND PETROCHEMICAL COMPANY AND THE IMPACTS ON THE RECIPIENT MEDIUM

Author's Name: Azuokwu Augustine Azubike, Yerima Yakubu and Ngubi Fredericks Wirsly
Subject Area: Science and Engineering
Subject Engineering
Section Research Paper

Keyword:

Refinery and petrochemical, Wastewaters, Environmental Degradation, Performance Evaluation, Physicochemical Parameters


Abstract

The petroleum refinery and petrochemical companies have been recognized as indispensable to any country or society that wants to develop into a modern industrial based economy. However, petroleum refining and petrochemical industries have been implicated as one of the major contributors to environmental degradation and pollution of various magnitudes. If not effectively treated, wastewaters generated during refinery and petrochemical operation may become toxic to receiving water bodies with potentially serious consequences on the ecosystem. In this study, the performance of wastewater treatment in a refining and petrochemical company and the impacts on the recipient medium were evaluated. Waste water samples (treated and untreated) from the refinery and from water bodies of recipient medium at the designated points were collected weekly and analyzed for a period of four weeks. The samples were analyzed for a number of standard physicochemical parameters and metal contents using standard analytical methods. Performance evaluation of the waste treatment efficiency was carried out by comparing parameters of treated waste waters with industry standard; and by comparing the treatment efficiency obtained with the standard treatment efficiency required. In addition, the impacts on the recipient medium were determined by comparing waste water parameters obtained at the designated points in the recipient medium with the industry standard. While some parameters were within the industry standard, some were out of range. However, 82.64% efficiency was achieved. In addition, as the distance of the recipient medium increases from the discharge points, the water tends to self-purified.

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