Sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulation
Author | Gunda, Mohanakrishna |
Author | Al-Raoush, Riyadh I. |
Author | Abu-Reesh, Ibrahim M. |
Available date | 2022-09-05T09:49:03Z |
Publication Date | 2020-09-30 |
Publication Name | Biotechnology Reports |
Identifier | http://dx.doi.org/10.1016/j.btre.2020.e00478 |
Citation | Mohanakrishna, G., Al-Raoush, R. I., & Abu-Reesh, I. M. (2020). Sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulation. Biotechnology Reports, 27, e00478. |
ISSN | 2215017X |
Abstract | The impact of readily biodegradable substrates (sewage and acetate) in bioelectroremediation of hydrocarbons (PW) was evaluated in a bench-scale soil-based hybrid bioelectrochemical system. Addition of bioelectro-stimulants evidenced efficient degradation than control operation. Acetate and sewage were exhibited power density of 1126 mW/m2 and 1145 mW/m2, respectively, which is almost 15 % higher than control (without stimulant, 974 mW/m2). Increased electrochemical activity was correlated well with total petroleum hydrocarbons (TPH) degradation through addition of acetate (TPHR, 525 mg/L, 67.4 %) and sewage (TPHR, 560 mg/L,71.8 %) compared to the control operation (TPHR, 503 mg/L, 64.5 %). Similarly, chemical oxygen demand (COD) reduction was also enhanced from 69.0 % (control) to 72.1 % and 74.6 % with acetate and sewage, respectively. Sewage and acetate also showed a positive role in sulfates removal, which enhanced from 56.0 % (control) to 62.9 % (acetate) and 72.6 % (sewage). This study signifies the superior function of sewage as biostimulant compared to acetate for the bioelectroremediation of hydrocarbons in contaminated soils. |
Language | en |
Publisher | Elsevier Ltd |
Subject | Petroleum hydrocarbons Sewage supplementation Applied potential In situ bioelectroremediation Produced water |
Type | Article |
Volume Number | 27 |
Open Access user License | http://creativecommons.org/licenses/by/4.0/ |
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Civil & Architectural Engineering [778 items ]