Sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulation
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 w...
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doaj-a4f87f1a034f4e798b19f5b5cf58ab062020-11-25T03:22:01ZengElsevierBiotechnology Reports2215-017X2020-09-0127e00478Sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulationGunda Mohanakrishna0Riyadh I. Al-Raoush1Ibrahim M. Abu-Reesh2Department of Civil and Architectural Engineering, College of Engineering, Qatar University, P O Box 2713, Doha, QatarDepartment of Civil and Architectural Engineering, College of Engineering, Qatar University, P O Box 2713, Doha, Qatar; Corresponding author.Department of Chemical Engineering, College of Engineering, Qatar University, P O Box 2713, Doha, QatarThe 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.http://www.sciencedirect.com/science/article/pii/S2215017X20300813Petroleum hydrocarbonsSewage supplementationApplied potentialIn situ bioelectroremediationProduced water |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Gunda Mohanakrishna Riyadh I. Al-Raoush Ibrahim M. Abu-Reesh |
spellingShingle |
Gunda Mohanakrishna Riyadh I. Al-Raoush Ibrahim M. Abu-Reesh Sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulation Biotechnology Reports Petroleum hydrocarbons Sewage supplementation Applied potential In situ bioelectroremediation Produced water |
author_facet |
Gunda Mohanakrishna Riyadh I. Al-Raoush Ibrahim M. Abu-Reesh |
author_sort |
Gunda Mohanakrishna |
title |
Sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulation |
title_short |
Sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulation |
title_full |
Sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulation |
title_fullStr |
Sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulation |
title_full_unstemmed |
Sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulation |
title_sort |
sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulation |
publisher |
Elsevier |
series |
Biotechnology Reports |
issn |
2215-017X |
publishDate |
2020-09-01 |
description |
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. |
topic |
Petroleum hydrocarbons Sewage supplementation Applied potential In situ bioelectroremediation Produced water |
url |
http://www.sciencedirect.com/science/article/pii/S2215017X20300813 |
work_keys_str_mv |
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