| Autor: |
Gholami M; Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran.; Department of Civil and Natural Resources Engineering, University of Canterbury, Christchurch, New Zealand., Souraki BA; Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran., Shomali A; Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran., Pendashteh A; Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran.; Department of Water Engineering and Environment, The Caspian Sea Basin Research Center, University of Guilan, Rasht, Iran. |
| Jazyk: |
angličtina |
| Zdroj: |
Environmental technology [Environ Technol] 2024 Sep; Vol. 45 (21), pp. 4419-4439. Date of Electronic Publication: 2023 Sep 04. |
| DOI: |
10.1080/09593330.2023.2253365 |
| Abstrakt: |
ABSTRACT In the present study, a bioelectrochemical reactor (BEC) was utilized to treat two types of real saline produced water (PW). BEC was designed based on the combination of electrocoagulation (EC) process with halophilic microorganisms, and it was assessed in terms of biodegradation of hydrocarbons. The effects of various operating parameters including the current density, electrical contact time (On/Off), hydraulic retention time (HRT), and total dissolved solids (TDS) at different levels on the chemical oxygen demand (COD) removal efficiency, settleability, and performance of isolated halophilic microorganisms were examined. Additionally, a novel neural network (ANN) approach modelling using adaptive factors was used to predict and optimize the effects and interactions between operating parameters during BEC process by predicting complicated mechanisms and variations associated with microorganisms. In addition, a new algorithm was developed for the sensitivity analysis to achieve the optimum operating conditions and obtain maximum efficiency in COD removal, sludge volume index (SVI), mixed liquor suspended solids (MLSS), and specific electrical energy consumption (SEEC), simultaneously. BEC was found to be significantly more effective at removing most hydrocarbons, particularly pristine and phytane. In addition, the results showed a significant improvement in settling ability of the biological flocs with average SVI of 91.5 mL/g and a size of 178.25 μm using BEC. Based on estimated operating costs and energy consumption, BEC was more cost-effective and efficient than other bioelectrochemical systems. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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