An investigation into a petrochemical effluent treatment using a membrane biological reactor

Amin Ahmadpour (), Alireza Bozorgian (), Ali Eslamimanesh () and Amir H. Mohammadi ()
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Amin Ahmadpour: National Petrochemical Company
Alireza Bozorgian: Islamic Azad University
Ali Eslamimanesh: Tarbiat Modares University
Amir H. Mohammadi: University of KwaZulu-Natal, Howard College Campus

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2024, vol. 26, issue 11, No 24, 27705-27722

Abstract: Abstract In this study, a sample from the effluent of lower salt section of Fajr Petrochemical Company (located in southwest of Iran) has been treated using an in-house designed and built-up membrane biological reactor/bioreactor (MBR). Effective parameters in the performance of the unit have been determined, and their optimal values have been obtained through an experimental design approach. It is shown that process parameters including mixed liquor volatile suspended solids (MLVSS), hydraulic retention time (HRT), membrane type as well as their combined parameters exhibit considerable influence on the output chemical oxygen demand (COD) of purification process. The results of modeling with design expert test software show that the term AB (interaction of HRT and MLVSS) has the most important effect and the effect of bioreactor change does not have a significant effect on changes in COD. Furthermore, the optimization procedure shows that the maximum COD removal percentage of 94.36 using cellulose membrane (CAS) can be achieved under operating conditions of HRT = 1 h and MLVSS = 11,200 mg/L.

Keywords: Petrochemical effluent treatment; Membrane bioreactor; Optimization; Chemical oxygenation (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10668-023-03778-w

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