Sand amendment enhances bioelectrochemical remediation of petroleum hydrocarbon contaminated soil

Li, Xiaojing; Wang, Xin; Ren, Zhiyong Jason; Zhang, Yueyong; Li, Nan; Zhou, Qixing

doi:10.1016/j.chemosphere.2015.06.025

Cited by 104 publications

(48 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, the proportion of sand component in the column‐type soil MFC was 61.83 %, which was more than twice as much as that (24–30 %) in U‐type or multianode soil MFCs . A greater sand component resulted in a larger soil porosity, and thus, accelerated mass transfer; this indicated that MFCs were more suitable to remediate the polluted sandy soil (maybe a contaminated beach). Moreover, the molecular weight of contaminants was clearly different.…”

Section: Key Issues Of Soil Mfc Remediationmentioning

confidence: 99%

“…MFC remediation belongs to the category of bioelectrochemical remediation, which is one of the biostimulation technologies . When the air‐cathode MFC is used, the pollutant is biodegraded by microbial catalysis as the electron donor.…”

Section: Fundamentals Of Remediationmentioning

confidence: 99%

“…A charge output of 918 C was transferred, and 37 mW m −2 (366 mV, 102 mA m −2 , across 1000 Ω resistor) of the maximum power density was achieved, which was consistent with that previously reported (39 mW m −2 ; Table ). With the help of sand amendment and glucose addition, the performance of multianode soil MFCs was further promoted ,. Additionally, Zhang et al.…”

Section: Organic‐contaminant Degradationmentioning

confidence: 99%

“…For the sludge or sediment, the addition of sand, or some “fluffy” material, could be directly used to enlarge the porosity of the medium. In soil MFCs with a water seal, the addition of sand enhanced the degradation of petroleum hydrocarbons and electricity generation because of increased porosity, and thus, mass transfer . With respect to unsaturated medium, for example, soil, increasing water content can provide a better pore fluid environment for the diffusion of substances.…”

Section: Key Issues Of Soil Mfc Remediationmentioning

confidence: 99%

See 3 more Smart Citations

Microbial Fuel Cells for Organic‐Contaminated Soil Remedial Applications: A Review

Wang

Weng

et al. 2017

Energy Tech

Self Cite

View full text Add to dashboard Cite

Efficient noninvasive techniques are desired for repairing organic‐contaminated soils. Bioelectrochemical technology, especially microbial fuel cells (MFCs), has been widely used to promote a polluted environmental remediation approach, and applications include wastewater, sludge, sediment, and soil remediation. Soil MFC remediation has been of significant concern in recent years, and thus, several aspects, including reactor configuration, electrode materials, soil conductivity, mass transfer, and microbial activity, are reviewed. Recent studies and key issues of soil MFCs and perspectives of organic‐contamination remedial application are summarized, with the aim of assisting environmental scholars and engineers to gain a comprehensive understanding of MFC remediation. Insights are also offered on how to extend applications to help soil MFC remediation technology to advance and be applied in the future on a large scale.

show abstract

Section: Key Issues Of Soil Mfc Remediationmentioning

confidence: 99%

Section: Fundamentals Of Remediationmentioning

confidence: 99%

Section: Organic‐contaminant Degradationmentioning

confidence: 99%

Section: Key Issues Of Soil Mfc Remediationmentioning

confidence: 99%

See 2 more Smart Citations

Microbial Fuel Cells for Organic‐Contaminated Soil Remedial Applications: A Review

Wang

Weng

et al. 2017

Energy Tech

Self Cite

View full text Add to dashboard Cite

show abstract

“…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

View full text Add to dashboard Cite

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

show abstract

Effect of introduced‐electrode on phenanthrene degradation in the soil microbial electrochemical remediation

Zhang

Chen

et al. 2020

Int J Energy Res

Self Cite

View full text Add to dashboard Cite

Summary Soil microbial electrochemical remediation (MER) provides an inexhaustible electron acceptor (solid anode) to oxidize organic pollutants in soils where electron acceptors are generally limited. Simultaneously, bioelectricity recovery is directly implemented from the degradation of organic pollutants which is in turn accelerated by biocurrent stimulation. However, it has not been a concern in previous reports that the removal rates of open‐circuit groups (OC) are significantly higher than non‐electrode controls. Thus, the reasons for the enhanced degradation after the introduction of single or two electrodes were focused in this study. The removal rate of typical polycyclic aromatic hydrocarbon phenanthrene was higher in the closed‐circuit soil MER than OC, with an electricity conversion efficiency of 12 ± 1 C∙mg−1 phenanthrene. The removal was 21‐39% higher (P < 0.05) in soils near the cathodic position and adjacent to the water layer of upper surface, suggesting that the cathode even contributed more to phenanthrene degradation than the anode. The profile of power production showed two peaks with the maximum values of 84 ± 4 mA∙m−2 on days 0‐26 and 70 ± 1 mA∙m−2 on days 27‐100, respectively. Afterward, more phenanthrene (26‐34 mg∙kg−1, P < 0.05) was removed in OC compared to closed‐circuit systems (1‐17 mg∙kg−1). However, in reactors with only a single electrode, a separate anode played a stronger enhanced effect on the degradation of phenanthrene than a separate cathode. These results were due to an increment of 128‐425 OTUs on the surface of electrodes, for example, the relative abundance of Bacillus increased from 14.27% to 44.98%. Overall, the configuration with both electrodes contacting with the polluted matrix (eg, soils or sediments) is superior in terms of the remediation efficiency to that with one electrode (ie, anode), which provided a guidance of the MER application.

show abstract

Sand amendment enhances bioelectrochemical remediation of petroleum hydrocarbon contaminated soil

Cited by 104 publications

References 49 publications

Microbial Fuel Cells for Organic‐Contaminated Soil Remedial Applications: A Review

Microbial Fuel Cells for Organic‐Contaminated Soil Remedial Applications: A Review

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

Effect of introduced‐electrode on phenanthrene degradation in the soil microbial electrochemical remediation

Contact Info

Product

Resources

About