Extended petroleum hydrocarbon bioremediation in saline soil using Pt-free multianodes microbial fuel cells

Li, Xiaojing; Wang, Xin; Zhang, Yueyong; Cheng, Lijuan; Liu, Jie; Fan, Li; Gao, Bingli; Zhou, Qixing

doi:10.1039/c4ra10673c

Cited by 76 publications

(40 citation statements)

References 28 publications

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“…Phenanthrene (PHE; C14), fluoranthene (FLU; C16), pyrene (PYR; C16), and chrysene (CHR; C18) were the dominant PAHs, accounting for 70 ± 1% of total PAHs in the mixed soil (Fig. (a)), which was comparable with previous findings . The overall PAHs degradation rates in LG and HG ranged from 38% to 44% (Fig.…”

Section: Resultssupporting

confidence: 89%

“…The soil dehydrogenase was measured by 2,3,5‐triphenyl tetrazolium chloride reduction and triphenyl formazone calibration (485 nm). Soil polyphenol oxidase was analyzed by catalyzing pyrogallol (430 nm) according to previous methods . The total petroleum hydrocarbons (TPHs), n ‐alkanes and 16 priority PAHs were determined according to methods reported previously …”

Section: Methodsmentioning

confidence: 99%

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Enhanced biodegradation of aged petroleum hydrocarbons in soils by glucose addition in microbial fuel cells

Wang

Wan

et al. 2015

J of Chemical Tech & Biotech

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BACKGROUND Bioelectrochemical remediation of soils contaminated by petroleum hydrocarbons has received increasing attention as an effective approach to remove pollution with simultaneous electricity generation. RESULTS Here, glucose was added as a co‐substrate in this system. The charge output of soil microbial fuel cells (MFCs) was enhanced by 262%, and the total petroleum hydrocarbon degradation rate increased by 200%. According to the increased dehydrogenase and polyphenol oxidase activities, the exogenetic glucose substantially activated hydrocarbon degradation bacteria (such as Alcanivorax). The Shannon–Wiener Index and richness of soil microbial community decreased after glucose addition, indicating that a selective enrichment of specific communities was imposed by glucose. Correlation analysis showed the biodiversity in soil far from the cathode was mainly determined by the concentration of petroleum hydrocarbons, while that in soil close to the cathode was dominated by the current. CONCLUSION This study demonstrated that an exogenetic carbon source enhanced the bioelectrochemically assisted degradation of aged petroleum hydrocarbons in saline soils, providing an effective approach to remove contaminations from soil in barren areas or extreme environments. © 2015 Society of Chemical Industry

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Section: Resultssupporting

confidence: 89%

Section: Methodsmentioning

confidence: 99%

Enhanced biodegradation of aged petroleum hydrocarbons in soils by glucose addition in microbial fuel cells

Wang

Wan

et al. 2015

J of Chemical Tech & Biotech

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“…The removal of hydrocarbons in soil is correlated with bio-current generated by exoelectrogenes (Li et al, 2014b;Lu et al, 2014a;Zhang et al, 2014). Using MFCs to remediate sediment contaminated by hydrocarbons, the degradation rate increased by up to 12 times from 2% to 24% in 66 d. However, according to the low power density reported previously (an average of 37 mW m À3 ), the system heavily suffered from very high internal resistance of $4 kX, mainly attributed to the high Ohmic resistance as a result of low conductivity in soil (Morris and Jin, 2012).…”

Section: Introductionmentioning

confidence: 99%

Sand amendment enhances bioelectrochemical remediation of petroleum hydrocarbon contaminated soil

et al. 2015

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“…Tubular BESs in water‐saturated soils, with carbon cloth or mesh electrodes, enhanced hydrocarbon decontamination . The degradation of petroleum hydrocarbons was rapidly increased in sand‐amended BES due to increased soil porosity, oxygen and proton transport . The granular activated carbon anode in soil microbial fuel cells (MFC), promoted remediation of pesticide contaminated soil .…”

Section: Introductionmentioning

confidence: 99%

Environmental decontamination using photocatalytic fuel cells and photoelectrocatalysis‐microbial fuel cells

Liu

Shi

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND To decontaminate sites of pollutants, fuel cell and bio‐electrochemical fuel cell reactors can degrade pollutants and generate electricity simultaneously, potentially decrease cost, energy consumptions and treatment cycle. In this study, a photocatalytic fuel cell (PFC) and PEC‐MFC (integrated photo‐electro‐catalysis with microbial fuel cell) were investigated to decontaminate sand/water polluted by RhB, antibiotics and heavy metal ions. RESULTS In the PFC, paired electrodes with ZnIn2S4‐AgAgCl/GO or ZnIn2S4‐RGO/MnO2, effectively removed pollutants in sand/water. The removal of RhB was 95.6% in 100 min with an external resistance of 1 Ω under aeration. Adding cyclo‐dextrin increased pollutant removals, realized 66% removal of RhB in overlying water, and significant removal in sand after 5 h, and 70% removal of tetracycline in overlying water, but only 60% without cyclodextrin after 4 h. Adding KMnO4 and NaHSO3 promoted decontamination of tetracycline from sand/water, tetracycline in water was almost completely degraded in 3.5 h with the addition, but only about 65% without any addition. In the PEC‐MFC, integrating photo‐electro‐catalytic electrode with bio‐anode, Cr(VI) in the cathode chamber was reduced rapidly and the concentration of RhB in sand decreased quickly, nearly complete in 2 h. The Cr(VI) in sand was reduced in several hours, so that, compared with previous reports, the treatment time is significantly shortened. CONCLUSION The PFC and PEC‐MFC systems are successful in decontaminating sand/water in polluted sites and are cost‐effective and sustainable methods. By building an on‐site or off‐site system with washing and cycling of the liquid stream, it could be a convenient remediation method for polluted sites. © 2018 Society of Chemical Industry

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Extended petroleum hydrocarbon bioremediation in saline soil using Pt-free multianodes microbial fuel cells

Abstract: Greater charge and a higher degradation rate of hydrocarbons in soil are obtained using a multi-anode bioelectrochemical system.

Cited by 76 publications

References 28 publications

Enhanced biodegradation of aged petroleum hydrocarbons in soils by glucose addition in microbial fuel cells

Enhanced biodegradation of aged petroleum hydrocarbons in soils by glucose addition in microbial fuel cells

Sand amendment enhances bioelectrochemical remediation of petroleum hydrocarbon contaminated soil

Environmental decontamination using photocatalytic fuel cells and photoelectrocatalysis‐microbial fuel cells

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