Influence of sulfate on the transport of bacteria in quartz sand

Shen, Xiufang; Han, Peng; Yang, Haiyan; Kim, Hyung-Seok; Tong, Meiping

doi:10.1016/j.colsurfb.2013.05.014

Cited by 13 publications

(3 citation statements)

References 55 publications

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“…Chemical treatments have been widely used to modify bacterial surfaces to weaken bacterial attachment and enhance transport of bacteria in porous media for bioaugmentation applications [ Bai et al ., ; Brown and Jaffé , ; Gross and Logan , ; Johnson and Logan , ; Johnson et al ., ; Powelson and Mills , ; Shen et al ., ; Streger et al ., ; Wang et al ., ]. For example, the chemical surfactants, e.g., nonionic surfactants, Tween‐20 and Brij, and anionic surfactants, sodium dodecyl benzene sulfonate (SDBS) and sodium dodecyl sulfate (SDS), were observed to decrease CSH or produce the steric effect, and thus lower cell‐attachment efficiencies and decrease cell retention [ Brown and Jaffé , ; Gross and Logan , ; Johnson et al ., ; Powelson and Mills , ; Streger et al ., ].…”

Section: Introductionmentioning

confidence: 99%

“…For example, the chemical surfactants, e.g., nonionic surfactants, Tween‐20 and Brij, and anionic surfactants, sodium dodecyl benzene sulfonate (SDBS) and sodium dodecyl sulfate (SDS), were observed to decrease CSH or produce the steric effect, and thus lower cell‐attachment efficiencies and decrease cell retention [ Brown and Jaffé , ; Gross and Logan , ; Johnson et al ., ; Powelson and Mills , ; Streger et al ., ]. Other chemicals, e.g., ethylene diamine tetraacetic acid (EDTA), proteinase‐k, pyrophosphate, sulfate, and phosphate, were also reported to enhance bacterial transport either by modifying cell and sand surface properties (e.g., hydrophobicity and zeta potential) or by releasing previously immobilized cells [ Gross and Logan , ; Johnson et al ., ; Shen et al ., ; Wang et al ., ]. However, high concentrations of the chemicals are generally required for achieving significant decrease of cell retention.…”

Section: Introductionmentioning

confidence: 99%

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Effect of low‐concentration rhamnolipid biosurfactant on Pseudomonas aeruginosa transport in natural porous media

Liu

Zhong

Jiang

et al. 2017

Water Resources Research

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Enhanced transport of microbes in subsurface is a focus in bioaugmentation applications for remediation of groundwater. In this study, the effect of low‐concentration monorhamnolipid biosurfactant on transport of Pseudomonas aeruginosa ATCC 9027 in natural porous media (silica sand and a sandy soil) with or without hexadecane as the nonaqueous phase liquids (NAPLs) was studied with miscible‐displacement experiments using artificial groundwater as the background solution. Transport of two types of cells was investigated, glucose‐grown and hexadecane‐grown cells with lower and higher cell surface hydrophobicity (CSH), respectively. A clean‐bed colloid deposition model was used to calculate deposition rate coefficients (k) for quantitative assessment on the effect of the rhamnolipid on the transport. In the absence of NAPLs, significant cell retention was observed in the sand (81% and 82% for glucose‐grown and hexadecane‐grown cells, respectively). Addition of low‐concentration rhamnolipid enhanced cell transport, with 40 mg/L of rhamnolipid reducing retention to 50% and 60% for glucose‐grown and hexadecane‐grown cells, respectively. The k values for both glucose‐grown and hexadecane‐grown cells correlated linearly with rhamnolipid‐dependent CSH quantitatively measured using a bacterial‐adhesion‐to‐hydrocarbon method. Retention of cells by the soil was nearly complete (>99%). Forty milligrams per liter of rhamnolipid reduced the retention to 95%. The presence of NAPLs in the sand enhanced the retention of hexadecane‐grown cells with higher CSH. Transport of cells in the presence of NAPLs was enhanced by rhamnolipid at all concentrations tested, and the relative enhancement was greater than in the absence of NAPLs. This study shows the importance of hydrophobic interaction on bacterial transport in natural porous media and the potential of using low‐concentration rhamnolipid for facilitating cell transport in subsurface for bioaugmentation efforts.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of low‐concentration rhamnolipid biosurfactant on Pseudomonas aeruginosa transport in natural porous media

Liu

Zhong

Jiang

et al. 2017

Water Resources Research

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“…Chemical treatment to bacterial cells is a method of potential to change cell surface properties and, thus, affect bacterial transport in porous media for bioaugmentation. Depending on the type and concentration used, the chemicals, for example, proteins, sulfate, phosphate, and surfactants, may reduce efficiency of bacterial attachment to surfaces through the possible mechanisms of increasing charge, competitive blocking, producing the steric effect, and changing CSH (Bai et al, ; Brown & Jaffé, ; Chen et al, ; Chen & Zhu, ; Li & Logan, ; Liu, Zhong, et al, ; Powelson & Mills, ; Shen et al, ; Streger et al, ; Wang et al, ; Wei, ; Wu et al, ; Wu et al, ; Zhao et al, ). Among them, surfactants are a group of important cell‐surface modifying chemicals due to the amphiphilic structure of surfactant molecules with both polar and nonpolar moieties (Liu et al, ).…”

Section: Introductionmentioning

confidence: 99%

Transport of Pseudomonas aeruginosa in Porous Media Mediated by Low‐Concentration Surfactants: The Critical Role of Surfactant to Change Cell Surface Hydrophobicity

Liu

Fang

Zhong

et al. 2020

Water Resources Research

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Transport of P. aeruginosa ATCC 9027 in quartz sands mediated by low‐concentration surfactants of sodium dodecyl benzene sulfonate (SDBS) or Triton X‐100 was investigated with column experiments. P. aeruginosa ATCC 9027 was cultured with glucose and hexadecane to produce cells with different initial cell surface hydrophobicity (CSH). Transport behavior of cells was characterized by breakthrough curves (BTCs) and deposition rate coefficients (kd) values were estimated by fitting the BTCs using colloid transport models. Relations between kd and CSH represented by bacterial‐adsorption‐to‐hydrocarbon fraction (BATH fraction) and between kd and cell surface charge represented by zeta potential were analyzed to quantitatively describe the effect of surfactants on cell transport. Results showed that at low concentrations the ionic SDBS increased cell surface charge while the nonionic Triton X‐100 had no effect, while both of them caused significant differentiation of CSH. The kinetic attachment‐detachment model with blocking was the best among the five models tested to fit BTCs and low‐concentration SDBS and Triton X‐100 caused remarkable change of kd. A good linear relation between kd and cell BATH fraction was observed (R2 = 0.82), whereas the linearity between kd and total zeta potential of cell and sand was poor (R2 = 0.11). The data reconstructed from our previous studies showed that the linearity between kd and cell BATH fraction also presented in sands and glass beads for low‐concentration rhamnolipid biosurfactant. In all, these results showed that CSH plays a critical role in cell transport in porous media and changing CSH is a common mechanism for low‐concentration surfactants to mediate the transport, which implies the potential of using low‐concentration surfactants to regulate bacterial transport for bioaugmentation.

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Effect of attapulgite colloids on uranium migration in quartz column

Wang

et al. 2019

Applied Geochemistry

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Influence of sulfate on the transport of bacteria in quartz sand

Cited by 13 publications

References 55 publications

Effect of low‐concentration rhamnolipid biosurfactant on Pseudomonas aeruginosa transport in natural porous media

Effect of low‐concentration rhamnolipid biosurfactant on Pseudomonas aeruginosa transport in natural porous media

Transport of Pseudomonas aeruginosa in Porous Media Mediated by Low‐Concentration Surfactants: The Critical Role of Surfactant to Change Cell Surface Hydrophobicity

Effect of attapulgite colloids on uranium migration in quartz column

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