Synergistic Effects of Organic Contaminants and Soil Organic Matter on the Soil-Water Partitioning and Effectiveness of a Nonionic Surfactant (Triton X-100)

Surfactant–soil interactions during surfactant-amended remediation of contaminated soils by hydrophobic organic compounds: A review

“…However, in soil-contaminant systems using DOWFAX surfactant components, surfactant sorption did not significantly impact contaminant solubilization. Ussawarujikulchai et al (2008) report on the effects of the presence of model contaminants (naphthalene and decane) on the partitioning of the nonionic surfactant Triton X-100 onto soils of varying organic carbon content. Their results indicate that the amount of surfactant sorbed onto soil increases with increasing soil organic content and increasing surfactant concentration; the effective CMC (CMC eff ) of Triton X-100 also increased with increasing soil organic content.…”

“…This characteristic has resulted in significant interest in the use of surfactants for the treatment of recalcitrant organic contaminants in the soil-water environment by facilitating HOC desorption from soil and increasing apparent aqueous phase HOC concentrations. Several studies have looked into the use of surfactant-enhanced remediation for HOC-contaminated soils including soil washing applications and bioremediation (Fountain et al, 1991(Fountain et al, , 1995Liu et al, 1991;Laha and Luthy, 1992;West and Harwell, 1992;Guha and Jaffé , 1996;Bramwell and Laha, 2000;Grasso et al, 2001;Ussawarujikulchai et al, 2008). Mechanisms for promoting HOC remediation in soil-water systems include the reduction in interfacial tension, micellar solubilization, and phase transfer from soil to the pseudo-aqueous phase.…”

Evaluation of the phytoremediation potential of three plant species for azoxystrobin-contaminated soil

“…Several studies have looked into the use of surfactant-enhanced phytoremediation (Smith et al 2004;Wu et al 2008). Their amphiphilic characteristics facilitate the release of organic compounds from the sorbed phase, increasing their aqueous concentrations and bioavailability (González et al 2006;Ussawarujikulchai et al 2008). Surfactants are known to improve the pollutant desorption/mass transfer into the water phase by decreasing the interfacial tension between the water and the pollutants and by accumulating them in the micelles (Xu et al 2006).…”

Characteristics and Driving Mechanism of Soil Organic Carbon Content in Farmland of Beijing Plain: Implication for the Fate of Engineered Polymers in Soil

“…Surfactants are used to treat refractory organic pollutants in soil-water environment to promote special desorption of soil and increase apparent water phase concentration. Several studies have been carried out on the application of surfactants to strengthen remediation of specially polluted soil, including soil cleaning application and bioremediation [11,12]. SOC content has obvious characteristics of temporal evolution, and many studies have been conducted on characterizing the evolution of farmland SOC content [13][14][15][16].…”