Role of Microorganisms in Permeable Reactive Bio-Barriers (PRBBs) for Environmental Clean-Up: A Review

doi:10.30955/gnj.002525

Cited by 25 publications

(4 citation statements)

References 55 publications

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“…Andrade et al mainly discussed the single-action mechanism of four fillers (ZVI, activated carbon, zeolite, and microorganisms) and focused on organic compounds in soil . Upadhyay et al introduced the mechanism of removal of permeable reactive biobarriers (PRBB) for nitrate, heavy metals, chlorinated solvents, and hydrocarbons (arsenic, vanadium, uranium, selenium, and emerging contaminants were not discussed), and the microbe–filler interaction was not discussed . Original insights into the different types of active media and microbial carriers, the design and reaction rate of Bio-PRBs, and the mechanisms of interaction among 30 species of microorganisms, active media, and comprehensive and representative contaminants were provided.…”

Section: Advances In Bio-prb Technologymentioning

confidence: 99%

“…According to the properties of contaminants, the Bio-PRBs can be designed to be single or multiple microorganism augmentation barriers to meet the requirements. , In addition, these reported microbial populations [e.g., Mycobacteria , Pseudomonas , and Sphingomonas , sulfate-reducing bacteria ( Desulfitobacterium hafniense Y-51 and Geobacter metallireducens GS-15), Desulfitobacterium , Sulfurospirillium , and Desulfuromonas , nitrobenzene (NB)-degrading bacteria, and arsenate-reducing bacteria ( Clostridium )] have been added to Bio-PRBs for the efficient removal of specific contaminants [e.g., PHE, TCE, NB, As(V), and As(III)].…”

Section: Introductionmentioning

confidence: 99%

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Microbe–Mineral Interaction-Induced Microorganism-Augmented Permeable Reactive Barriers for Remediation of Contaminated Soil and Groundwater: A Review

et al. 2023

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Conventional zerovalent iron permeable reactive barriers (PRBs) are limited by unknown iron corrosion kinetics and permeability loss, hindering access to desirable remediation targets. Against this background, microbe−mineral interactioninduced microorganism-augmented PRBs (Bio-PRBs) are considered a promising cutting-edge technology for increasing reaction rate k and enhancing removal efficiency η. This study provides original insights into the various active media and microbial carriers and the mechanisms of interaction among microorganisms, active media, and various contaminants. The results showed that microorganism-activated and microorganism-immobilized Bio-PRBs increased k and η by 40−2650% and 25−400%, respectively. In Bio-PRBs, the removal of contaminants involves the coupling of biodegradation, chemical reduction, and adsorption processes. Microorganisms promote the liquefaction of metal minerals into metal ions, thus forming a positive cycle by "microbe−mineral" interaction. Moreover, nonmetallic fillers affect k through synergistic effects of biodegradation, biological reduction, and electron donor groups. Microorganisms accelerate the e − transfer to promote the contaminants' transformation, and nonmetallic fillers are also conducive to improving diversity and abundance. Furthermore, some suggestions are made regarding the development and application of Bio-PRBs. Bio-PRBs provide efficient and novel approaches and strategies for eliminating soil and groundwater contamination based on microbe−mineral interaction and stimulation.

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Section: Advances In Bio-prb Technologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microbe–Mineral Interaction-Induced Microorganism-Augmented Permeable Reactive Barriers for Remediation of Contaminated Soil and Groundwater: A Review

et al. 2023

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“…Scherer et al 21 provide a review of PRBs for groundwater treatment using chemical and biological methods. Upadhyay and Sinha 22 reviewed permeable reactive biobarriers (PRBBs) for environmental clean-up. For aerobic treatment, barriers have focused on contaminants that can be metabolized, such as BTEX, through the addition of slow-release forms of oxygen-releasing compounds (ORCs) such as calcium or magnesium peroxides.…”

Section: Introductionmentioning

confidence: 99%

Aerobic Cometabolism of Chlorinated Solvents and 1,4-Dioxane in Continuous-Flow Columns Packed with Gellan-Gum Hydrogels Coencapsulated with ATCC Strain 21198 and TBOS or T2BOS as Slow-Release Compounds

Azizian

Semprini

2022

ACS EST Eng.

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The continuous aerobic cometabolic treatment of a mixture of chlorinated aliphatic hydrocarbons and 1,4-dioxane (1,4-D) was studied in laboratory columns packed with hydrogel beads containing bacteria and slow-release substrates. Three columns were packed with gellan-gum hydrogel beads that coencapsulate the bacterium Rhodococcus rhodochrous 21198 (ATCC strain 21198) and 8% (w/w) tetrabutyl-orthosilicate (TBOS) in columns 1 and 2 and tetrabutyl-s-orthosilicate (T2BOS) in column 3. TBOS and T2BOS slowly hydrolyze as slow-release compounds to produce 1-butanol and 2-butanol, respectively, as growth-supporting substrates for ATCC strain 21198. A mixture of 1,1,1-trichloroethane (1,1,1-TCA), cis-dichloroethene (cis-DCE), and 1,4-D was continuously fed into the columns. The addition of hydrogen peroxide (H2O2) at 50–100 ppm as an additional source of dissolved oxygen (DO) was required for the effective utilization of 1-butanol and biostimulation of ATCC strain 21198 within the beads throughout columns 1 and 2. H2O2 addition was never required in column 3, which was packed with beads containing T2BOS. Over 99% removal of all three contaminants was achieved with a hydraulic residence time of 12 h. The cometabolic transformation was confirmed by stopping H2O2 and DO addition, which resulted in an increase in the effluent contaminant concentrations to the influent levels. Transformation resumed when DO addition was restarted. Replacing cis-DCE addition with 1,1-DCE addition (100–250 μg/L), while continuing to add 1,1,1-TCA and 1,4-D, resulted in the cessation in the cometabolic activity in the columns. At the end of the column studies, the beads were sampled and assayed for the amount of TBOS and T2BOS remaining. Approximately 56% of TBOS and 97.5% of T2BOS originally encapsulated in the beads were still present. Therefore, TBOS and T2BOS limitations were not responsible for the cessation in transformation activity in the columns. The estimated rate of hydrolysis of T2BOS was a factor of 15 lower than that of TBOS, which was consistent with the batch incubations of the hydrogel beads. The results from the column tests indicate that a passive cometabolic permeable treatment barrier might be created using the coencapsulated technology that was developed.

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“…used column experiments to explore the factors affecting the removal efficiency of benzene and toluene.The results showed that the activity of microorganisms could not be ignored. In order to improve the bioremediation efficiency of oil contaminated groundwater,Lee et al (2019) injected an emulsified colloidal matrix suspension into the groundwater, which directly promoted the increase in the total number of bacteria and the rapid decline of benzene concentration Upadhyay & Sinha (2018). systematically analysed and summarized the role of microorganisms in PRB, they believed that the symbiotic relationship with the reaction medium was the key to the performance of PRB.…”

mentioning

confidence: 99%

Progress in the development and application of permeable reaction barriers for remediation of dissolved oil contaminants in groundwater

Shen

Huang

2021

Water & Environment J

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As a technology for in situ treatment and remediation of groundwater contamination, permeable reaction barriers (PRBs) have the advantages of operational efficiency and low infrastructure footprint. In order to clarify previous research results and provide references for future research on remediation of contamination by dissolved oil contaminants in groundwater, the focus of this article is to review and compare the application of PRBs for the removal of dissolved oil contaminants and highlights the research gaps. We concentrate on the relationship between structure design, media types and service life of PRBs, along with groundwater flow velocity, temperature, pH and other hydrochemical conditions. These influencing factors are used to make a detailed explanation and analysis of remediation of oil contamination in groundwater. The current application of PRBs is mainly limited to heavy metals and inorganics, rather than persistent organics such as components in oil. The application of new PRB materials and combination of multiple remediation technologies in oil‐contaminated sites will be the focus of future research.

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Role of Microorganisms in Permeable Reactive Bio-Barriers (PRBBs) for Environmental Clean-Up: A Review

Cited by 25 publications

References 55 publications

Microbe–Mineral Interaction-Induced Microorganism-Augmented Permeable Reactive Barriers for Remediation of Contaminated Soil and Groundwater: A Review

Microbe–Mineral Interaction-Induced Microorganism-Augmented Permeable Reactive Barriers for Remediation of Contaminated Soil and Groundwater: A Review

Aerobic Cometabolism of Chlorinated Solvents and 1,4-Dioxane in Continuous-Flow Columns Packed with Gellan-Gum Hydrogels Coencapsulated with ATCC Strain 21198 and TBOS or T2BOS as Slow-Release Compounds

Progress in the development and application of permeable reaction barriers for remediation of dissolved oil contaminants in groundwater

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