Enhancing the bioremediation by harvesting electricity from the heavily contaminated sediments

Yang, Yonggang; Lu, Zijiang; Lin, Xunke; Xia, Chunyu; Sun, Guoping; Lian, Yingli; Xu, Meiying

doi:10.1016/j.biortech.2014.12.034

Cited by 59 publications

(30 citation statements)

References 15 publications

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“…It indicated that the flushing method (W Control), which was usually used for sediment restoration has little effects on the organics removal. From the experimental data obtained here, it is obviously that BMES demonstrated good capability of simultaneous organic matter removal as reported1415.…”

Section: Resultssupporting

confidence: 67%

A Pilot-scale Benthic Microbial Electrochemical System (BMES) for Enhanced Organic Removal in Sediment Restoration

Tian²,

et al. 2017

Sci Rep

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A benthic microbial electrochemical systems (BMES) of 195 L (120 cm long, 25 cm wide and 65 cm height) was constructed for sediment organic removal. Sediment from a natural river (Ashi River) was used as test sediments in the present research. Three-dimensional anode (Tri-DSA) with honeycomb structure composed of carbon cloth and supporting skeleton was employed in this research for the first time. The results demonstrated that BMES performed good in organic-matter degradation and energy generation from sediment and could be considered for river sediments in situ restoration as novel method. Community analysis from the soil and anode using 16S rDNA gene sequencing showed that more electrogenic functional bacteria was accumulated in anode area when circuit connected than control system.

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Section: Resultssupporting

confidence: 67%

A Pilot-scale Benthic Microbial Electrochemical System (BMES) for Enhanced Organic Removal in Sediment Restoration

Tian²,

et al. 2017

Sci Rep

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“…10 The maximum power density of BR4 was slightly higher than that of BR3 due to the existence of PCBs. With the current changing from 0 to 4 mA, the power densities increased from 0 to the maximum values (17.64 and 18.30 W m À3 in BR3 and BR4).…”

Section: Resultsmentioning

confidence: 90%

Improved biodegradation of total organic carbon and polychlorinated biphenyls for electricity generation by sediment microbial fuel cell and surfactant addition

Zhao

2015

RSC Adv.

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The biodegradation of total organic carbon (TOC) and polychlorinated biphenyls (PCBs) in sediment was studied in different treatments. This study showed that the combined application of a sediment microbial fuel cell (SMFC) and surfactant led to the highest removal efficiencies (58.91% of TOC and 43.26% of PCBs) after 60 days of operation, and produced the maximum power output (0.821 V of voltage and 18.30 W m À3 of power density). TOC and PCBs can diffuse between sediment and overlying water. The overlying water of natural anaerobic degradation sediment led to the greatest increase in PCB concentration (4.43 ng L À1 ), following the addition of 6 mg kg À1 PCBs into sediments. Considering the enhanced degradation and high power output, the combined application of the SMFC and surfactant addition offered a more efficient and promising way to purify the contaminated sediment and overlying water.

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“…They constitute the majority of work on the setup merging constructed wetlands and MFC; and 3) for waterlogged soil test [147]. In pilot tests the voltage stabilises after more time, about some tens of days: 35 days for a wetland pilot [174], a floating garden planted with Oryza sativa [169] and waste-contaminated river sediment pilot [104]; 40 days in wetland pilot planted with Typha latifolia [145]. In field experiments the voltage stabilization time is supposed longer.…”

Section: Electro-bioremediation In Water Bodiesmentioning

confidence: 99%

Bioremediation in Water Environment: Controlled Electro-Stimulation of Organic Matter Self-Purification in Aquatic Environments

Jobin¹,

Namour²

2017

AiM

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This review describes a new means of control and stimulation of microorganisms involved in the bioremediation of sediments and waterlogged soils. This emerging technology is derived from sedimentary microbial fuel cells, and consists in ensuring aerobic respiration of aerobic microbial populations in anaerobic conditions by means of a fixed potential anode in order to evacuate the electrons coming from the microbial respiratory chains. This review describes the conceptual basis of the electro-bioremediation, the material devices used (electrode set-ups and spacing), and finally studies the various devices published since the bench tests until the scarce in-field implementations.

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Enhancing the bioremediation by harvesting electricity from the heavily contaminated sediments

Cited by 59 publications

References 15 publications

A Pilot-scale Benthic Microbial Electrochemical System (BMES) for Enhanced Organic Removal in Sediment Restoration

A Pilot-scale Benthic Microbial Electrochemical System (BMES) for Enhanced Organic Removal in Sediment Restoration

Improved biodegradation of total organic carbon and polychlorinated biphenyls for electricity generation by sediment microbial fuel cell and surfactant addition

Bioremediation in Water Environment: Controlled Electro-Stimulation of Organic Matter Self-Purification in Aquatic Environments

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