Soil washing using various nonionic surfactants and their recovery by selective adsorption with activated carbon

Ahn, Chi Kyu; Kim, Young Beom; Woo, Seung Han; Park, Jong

doi:10.1016/j.jhazmat.2007.10.006

Cited by 150 publications

(77 citation statements)

References 31 publications

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“…The Result has compatibility with Ahn research in 2008 who has investigated the effect of the four surfactants solution. Brij35 with 0.5 to 5 g/L concentration was used for soil washing in soil contaminated with concentration of 0.2 g/kg (or 0.02 % (w/w)) has reached 71.6 ± 16.3 percentage of removal efficiency, in which maximum removal efficiency was 88 % in 5 g/L surfactant solution concentration (Ahn et al, 2008 …”

Section: Resultsmentioning

confidence: 99%

“…One of the simple and effective methods is activated carbon for surfactant recovery in soil washing solution by selective adsorption. Selective adsorption was potentially effective to reuse surfactant in soil washing process since the partitioning coefficients of hydrocarbons (especially PAHs) are much higher than nonionic surfactants (Ahn et al, 2008). In full scale remediation projects, surfactant's recovering and reusing technologies can be a part of the whole remediation system for reducing the expenses of surfactants.…”

Section: Resultsmentioning

confidence: 99%

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Response surface methodology approach to the optimization of oil hydrocarbon polluted soil remediation using enhanced soil washing

Kalali

Ebadi

Rabbani

et al. 2011

Int. J. Environ. Sci. Technol.

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ABSTRACT:One of the environmental concerns in recent decades is the prevalence of different pollutants in soil. Hence, the importance of remediation has led to the development of various methods to remediate polluted soil. Among these methods, soil washing has gained significant attention to treat polluted soils. In this paper, the response surface methodology was applied in order to determine the optimal conditions for total petroleum hydrocarbon remediation using nonionic surfactant Brij35 in soil environment. The effect of different factors in soil washing process including surfactant solution concentration and volume, washing time, age of pollution and frequency of washing are evaluated.The predicted values for total petroleum hydrocarbon remediation efficiency by the response functions are in a very close agreement with experimental data (R -2 = 98.75 %). The second order model was developed as experimented response and optimal conditions were obtained by analyzing the contour and surface plots and also by solving the regression equation using LINGO 9.0 software. The optimal concentrations (8 g/L), volume of surfactant solution (500 mL), washing time (75 min), age of pollution (29 days) and frequency of washing (three times) are determined. In this optimal condition, the removal efficiency has been observed to be 93.54 % which conforms to the results of process optimization using response surface methodology. Based on the results, it can be concluded that the response surface methodology is a suitable approach to determine the optimal conditions of soil washing to remediate organic hydrophobic pollutants using the nonionic surfactant Brij35 from the soil.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Response surface methodology approach to the optimization of oil hydrocarbon polluted soil remediation using enhanced soil washing

Kalali

Ebadi

Rabbani

et al. 2011

Int. J. Environ. Sci. Technol.

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“…Phytoremediation, make the use of plants to remediate contaminated soil, water or air and as an environmentally safe technique which is more than ever used in treatment or removing of pollutants from the contaminated sites (Tang et al, 2010b;Rascio and Navari-Izzo, 2011;Lotfinasabasl et al, 2013). Comparing to the destructive and expensive traditional methods (washing, excavating or thermalizing), this is a relatively low cost alternative, recently used for the remediation of a variety of environments (soil and water), contaminated with heavy metals and/or petroleum hydrocarbons (Semple et al, 2003;Ahn et al, 2008;Marek et al, 2009;Falciglia et al, 2011). However, using the phytoremediation technique maybe limited to a certain soil depth (up to the root zone area) and to a relatively low contaminants concentration.…”

Section: Introductionmentioning

confidence: 99%

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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“…Cu and Cd) from agricultural solid waste leachate, physical and chemical methods, such as evaporation and reverse osmosis, were the predominant techniques, (Di Palma et al, 2003), with electrochemical treatment (Iskander et al, 2016), photocatalysis (Fabbri et al, 2009), selective adsorption by activated carbon (Ahn et al, 2008) or biochar (Regmi et al, 2012) also being used. Nevertheless, most of these methods are costly in terms of maintenance and operation because special apparatus and reagents are required (Fedje et al, 2013).…”

Section: +mentioning

confidence: 99%

Bioremediation of agricultural solid waste leachates with diverse species of Cu (II) and Cd (II) by periphyton

Yang

Liu

et al. 2016

Bioresource Technology

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Soil washing using various nonionic surfactants and their recovery by selective adsorption with activated carbon

Cited by 150 publications

References 31 publications

Response surface methodology approach to the optimization of oil hydrocarbon polluted soil remediation using enhanced soil washing

Response surface methodology approach to the optimization of oil hydrocarbon polluted soil remediation using enhanced soil washing

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

Bioremediation of agricultural solid waste leachates with diverse species of Cu (II) and Cd (II) by periphyton

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