Stability of Multi-Permeable Reactive Barriers for Long Term Removal of Mixed Contaminants

Jai-Young, Lee; Lee, Kui-Jae; Youm, Sun Young; Lee, Mi Ran; Kamala‐Kannan, Seralathan; Oh, Byung‐Taek

doi:10.1007/s00128-009-9918-y

Cited by 11 publications

(4 citation statements)

References 14 publications

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“…Zero-valent metal (Fe 0 , Al 0 ) will remove [5,38,40] nitrates [41][42][43][44][45][46][47][48][49][50][51][52][53][54], nitrites [55,56], bromates [54], chlorates [54], organic compounds (including organo-halides [4][5][6][7]16,[57][58][59][60][61][62][63]) and metals (Ag [64], Al [5], As [40,65,66], Ba [5], Cd [12,64], Co [40], Cr [5,63], Cu [5,42], Fe [5], Hg [64], Mn [5], Ni [42], Pb …”

Section: Space Velocitymentioning

confidence: 99%

Sustainable Zero-Valent Metal (ZVM) Water Treatment Associated with Diffusion, Infiltration, Abstraction, and Recirculation

Antia¹

2010

Sustainability

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Socio-economic, climate and agricultural stress on water resources have resulted in increased global demand for water while at the same time the proportion of potential water resources which are adversely affected by sodification/salinisation, metals, nitrates, and organic chemicals has increased. Nano-zero-valent metal (n-ZVM) injection or placement in aquifers offers a potential partial solution. However, n-ZVM application results in a substantial reduction in aquifer permeability, which in turn can reduce the amount of water that can be abstracted from the aquifer. This study using static diffusion and continuous flow reactors containing n-ZVM and m-ZVM (ZVM filaments, filings and punchings) has established that the use of m-ZVM does not result in a reduction in aquifer permeability. The experimental results are used to design and model m-ZVM treatment programs for an aquifer (using recirculation or static diffusion). They also provide a predictive model for water quality associated with specific abstraction rates and infiltration/injection into an aquifer. The study demonstrates that m-ZVM treatment requires 1% of the weight required for n-ZVM treatment for a specific flow rate. It is observed that 1 t Fe 0 will process 23,500 m 3 of abstracted or infiltrating water. m-ZVM is able to remove >80% of nitrates from flowing water and adjust the water composition (by reduction) in an aquifer to optimize removal of nitrates, metals and organic compounds. The experiments demonstrate that ZVM treatment of an aquifer can be used to reduce groundwater salinity by 20 -> 45% and that an aquifer remediation program can be designed to desalinate an aquifer. Modeling indicates that widespread application of m-ZVM water treatment may reduce global socio-economic, climate and agricultural stress on water resources. The rate of oxygen formation during water reduction OPEN ACCESSSustainability 2010, 2 2989[by ZVM (Fe 0 , Al 0 and Cu 0 )] controls aquifer permeability, the associated aquifer pH, aquifer Eh and the degree of water treatment that occurs.

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Section: Space Velocitymentioning

confidence: 99%

Sustainable Zero-Valent Metal (ZVM) Water Treatment Associated with Diffusion, Infiltration, Abstraction, and Recirculation

Antia¹

2010

Sustainability

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“…During 2.5-year field monitoring, the oil injection generated strongly reactive conditions and there were large shifts in concentrations of contaminations. Lee et al (2010) suggested that multi-PRBs system was an effective alternate method to confine wide range of TCE, heavy metals, and nitrate in groundwater. USEPA (2002) summarized information about the use of PRBs for groundwater remediation at 47 sites in the United States and Canada.…”

Section: Introductionmentioning

confidence: 99%

A Three-Dimensional Flow and Transport Modeling of an Aquifer Contaminated by Perchloroethylene Subject to Multi-PRB Remediation

2011

Transp Porous Med

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Although subsurface contamination by organic chemicals is a pervasive environmental problem, a permeable reactive barrier (PRB) as a typical in-situ remediation technology is often successful at many sites. Laboratory tests have shown that perchloroethylene (PCE) can be dechlorinated by the combination of zero-valent iron and anaerobic microbial communities (FeMB), and the degradation pathway was: PCE → TCE → 1, 1-DCE → ethylene→ ethane (Ma amd Wu Environ Geol 55(1):47-54, 2008). Based on Ma's experimental results, we have extended MT3DMS to simulate mother-daughter chain reactions using MODFLOW-2005 V1.7/MT3DMS V5.2. Second, using FeMB as multi-PRB's reactive media, a 5-component transport model for a three-dimensional aquifer contaminated by PCE subject to multi-PRB remediation was built. Third, the adsorption and degradation parameters of reactive media were estimated by means of genetic algorithm. Finally, the three-dimensional, homogeneous aquifer contaminated by PCE subject to multi-PRB remediation was simulated. Overall, the purpose of this paper was to use FeMB as multi-PRB's reactive media, and develop a modified MODFLOW/MT3DMS that can simulate a three-dimensional aquifer contaminated by PCE and its daughters. Results demonstrated that FeMB could be a potential reactive media for PCE-contaminated groundwater. Multi-PRB could be a preferred option for secondly pollution caused by application of one-stage PRB. The modified MODFLOW/MT3DMS can effectively simulate multispecies mother-daughter chain kinetic reactions. Sensitivity analysis showed that losses of reactivity and permeability may have a significant effect on remediation's success.

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“…Reactive media like GI are selected for their propensity to degrade, sorb, or otherwise attenuate groundwater pollutants including chlorinated solvents (Liang et al, 1997;Mackenzie et al, 1999), trace elements like arsenic (Wilkin et al, 2009), selenium (Sasaki et al, 2008), radionuclides such as uranium (Gu et al, 2002;Simon et al, 2003) and a variety of other substances like nitrates (Lee et al, 2010;Robertson et al, 2008), acid mine drainage (AMD) (Bartzas and Komnitsas, 2012) and even landfill leachate (Lee et al, 2010). Macro-scale factors, including solution composition, iron type, and total available surface area (Su and Puls, 1999) are known to affect GI reactivity (Devlin and Allin, 2005;Van Stone et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Consideration of grain packing in granular iron treatability studies

Firdous

Devlin

2014

Journal of Contaminant Hydrology

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Stability of Multi-Permeable Reactive Barriers for Long Term Removal of Mixed Contaminants

Cited by 11 publications

References 14 publications

Sustainable Zero-Valent Metal (ZVM) Water Treatment Associated with Diffusion, Infiltration, Abstraction, and Recirculation

Sustainable Zero-Valent Metal (ZVM) Water Treatment Associated with Diffusion, Infiltration, Abstraction, and Recirculation

A Three-Dimensional Flow and Transport Modeling of an Aquifer Contaminated by Perchloroethylene Subject to Multi-PRB Remediation

Consideration of grain packing in granular iron treatability studies

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