Effect of soil texture on surfactant-based remediation of hydrophobic organic-contaminated soil

Lee, Dal Heui; Cody, Robert D.; Kim, Dong Ju; Choi, Sang‐Il

doi:10.1016/s0160-4120(01)00130-1

Cited by 91 publications

(48 citation statements)

References 21 publications

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“…Generally, coarser particles (sand) when mix with the fine clays and silt, build pore spaces with different shapes and sizes, then provide various routes and fates for the contaminants like petroleum hydrocarbons. Lee et al (2002) showed that sand is able to recover about 73% of toluene and 84% of TCB when tested in a batch experiment. They also reported that, sandy soils are more effective for surfactant remediation than clay soils because the clay surface adsorption reduce surfactant effectiveness.…”

Section: Phytoremediation Of Hc and Soil Texturementioning

confidence: 99%

“…According to Pathak et al (2011) the vertical movement of the petroleum contaminants is changed not only because of the alteration in aggregate density, but may be due to the reduced sediment aggregate porosity. Lee et al (2002) also mentioned that these effects might be because of the interaction between the petroleum substances and the soil particles and also due to the buoyancy effects of the contaminants in the substance-clay aggregates. Compact soil layers limit root growth and also adversely affect properties related to water and air movement in soil and around plant roots.…”

Section: Phytoremediation Of Hc and Soil Structurementioning

confidence: 99%

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Importance of soil physical characteristics for petroleum hydrocarbons phytoremediation: A review

Hajabbasi¹

2016

Afr. J. Environ. Sci. Technol.

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Petroleum and petrochemical hydrocarbons for some places are serious sources of environmental pollutants. To remediate these contaminants, phytoremediation, a relatively low cost and an environmental friendly technique is recommended more widely, now more than ever. Successful and effective applying of hydrocarbons phytoremediation depends mainly on the soil and plant types and conditions and microbial activities and the interactions between these three factors. Although for the last several decades, various plant and organism's species for the phytoremediation processes have been extensively studied, evaluating and characterizing soil properties, as an important objective for sustainable remediation and land use management, which had negligible considerations. An ideal soil for phytoremediation should have proper physical, chemical and biological characteristics to let the plant grow well and produce biomass as high as possible. It also should provide favorable conditions for microbial activities to perform efficient remediation. Soil physical characteristics such as texture, structure, water status and aeration are important factors affecting the microbial activities and consequently the degree of remediation potential. A better understanding of soil physical properties in conjunction with proper soil-plant-microbe management could be exploited to enhance the remediation of hydrocarbon contaminated soils and thus sustainable healthy environment.

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Section: Phytoremediation Of Hc and Soil Texturementioning

confidence: 99%

Section: Phytoremediation Of Hc and Soil Structurementioning

confidence: 99%

Importance of soil physical characteristics for petroleum hydrocarbons phytoremediation: A review

Hajabbasi¹

2016

Afr. J. Environ. Sci. Technol.

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“…A fine steel mesh was positioned at the exit of the column to trap the contaminated soil and to collect the effluent. The 100 g of contaminated soil was packed in layer by layer and tapped using glass rod [18,19]. The foam generated using DFA 100 at a flow rate of 0.3 L/min was transferred to the soil column and allowed to penetrate into the contaminated soil.…”

Section: B Experimental Proceduresmentioning

confidence: 99%

Remediation of Diesel Contaminated Soil by Tween-20 Foam Stabilized by Silica Nanoparticles

Karthick¹

2017

IJCEA

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Abstract-Diesel oil spills into soil from petroleum storage areas, pipelines are a major environmental hazard. There is thus an increasing demand for new, efficient agents for remediation of diesel contaminated soil. The aim of this study therefore was to analyze the efficiency of application of nanoparticle stabilized nonionic surfactant foams for remediation of diesel contaminated soil. Stable foams were produced from dispersions of hydrophilic, hydrophobic silica nanoparticles with nonionic surfactant Tween-20. The foam generated was then transferred to a column containing the contaminated soil. The maximum diesel oil removal efficiency obtained by applying Tween-20 foam stabilized with 0.5 wt% hydrophobic silica nanoparticle was 78%-much higher than that obtained for Tween-20 foam stabilized with 0.5 wt% hydrophilic silica nanoparticles. The Tween-20 surfactant solution alone showed only 42% maximum oil removal efficiency.

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“…Pump-and-treat remediation methods are among the most widely used for contaminated groundwater (Adeel and Luthy, 1995;Martel and Gelinas, 1996). However, the traditional remediation method, pump-and-treat, has been shown to be ineffective for remediation groundwater contaminated with DNAPL (Lee et al, 2002;Kim et al, 2005). Tetrachloroethylene (PCE) and trichloroethylene (TCE) are among the most ubiquitous chlorinated compounds found in groundwater contamination.…”

Section: Introductionmentioning

confidence: 99%

A Pilot Study for Remediation of Groundwater by Surfactant -Enhanced Soil Flushing

Park¹,

Lee²

2016

Journal of Soil and Groundwater Environment

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The removal of non-aqueous phase liquids (NAPLs) from groundwater using pure water, via pump and treat, is quite ineffective due to their low solubility and hydrophobicity. Therefore, the objectives of pilot tests were to select potentially suitable surfactants that solubilize tetrachloroethylene (PCE) and trichloroethylene (TCE) present as contaminants and to evaluate the optimal range of process parameters that can increase the removal efficiency in surfactant-enhanced soil flushing (SESF). Used experimental method for surfactant selection was batch experiments. The surfactant solution parameters for SESF pilot tests were surfactant solution concentration, surfactant solution pH, and the flow rate of surfactant solution in the SESF pilot system. Based on the batch experiments for surfactant selection, DOSL (an anionic surfactant) was selected as a suitable surfactant that solubilizes PCE and TCE present as contaminants. The highest recovery (95%) of the contaminants was obtained using a DOSL surfactant in the batch experiments. The pilot test results revealed that the optimum conditions were achieved with a surfactant solution concentration of 4% (v/v), a surfactant solution pH of 7.5, and a flow rate of 30 L/min of surfactant solution (Lee and Woo, 2015). The maximum removal of contaminants (89%) was obtained when optimum conditions were simultaneously met in pilot-scale SESF operations. These results confirm the viability of SESF for treating PCE and TCE-contaminated groundwater.

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Effect of soil texture on surfactant-based remediation of hydrophobic organic-contaminated soil

Cited by 91 publications

References 21 publications

Importance of soil physical characteristics for petroleum hydrocarbons phytoremediation: A review

Importance of soil physical characteristics for petroleum hydrocarbons phytoremediation: A review

Remediation of Diesel Contaminated Soil by Tween-20 Foam Stabilized by Silica Nanoparticles

A Pilot Study for Remediation of Groundwater by Surfactant -Enhanced Soil Flushing

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