Simulation Of Soil Washing With Surfactants

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Simulation Of Soil Washing With Surfactants

Simulation Of Soil Washing With Surfactants

  • Simulation of soil washing with surfactants - ScienceDirect

    In contrast, the pilot tests conducted by Nash et al. did not conclusively show surfactant soil washing to be a reliable remediation technology. There is a need for further research into the physics of soil washing by surfactants, especially at the field scale, before it

  • Cited by: 64
  • Simulation of soil washing with surfactants - ScienceDirect

    A mathematical model of soil washing that incorporates the surfactant enhanced mobilization and solubilization of organic compounds was implemented us

  • Cited by: 64
  • Optimization of aeration enhanced surfactant soil washing

    13/2/2020  Surfactant-enhanced soil washing has been used for remediation of organic pollutants for an extended period, but its effectiveness and wide application was limited by the high concentration of surfactants utilized. In this work, the efficiency of conventional soil ...

  • Author: Befkadu Abayneh Ayele, Befkadu Abayneh Ayele, Jun Lu, Quanyuan Chen
  • Surfactant-Enhanced Soil Washing for Removal of

    Upcoming surfactants like gemini and switchable surfactants are summarized. We assess the challenges and opportunities of in-situ and ex-situ soil washing, the mechanisms of surfactant-enhanced soil washing, and the criteria to follow for surfactant selection.

  • Cited by: 16
  • Mathematical simulation of surfactant flushing process to

    Soil washing is one of remediation methods which could be enhanced by using different kinds of surfactants. Because of capability in transforming pollutants, surfactants are used

  • Journal of Hazardous Materials Vol 59, Issues 2–3, Pages

    Read the latest articles of Journal of Hazardous Materials at ScienceDirect, Elsevier’s leading platform of peer-reviewed scholarly literature select article The heterogeneous photocatalytic degradation, intermediates and mineralization for the aqueous solution of

  • (PDF) Remediation of Contaminated Soils by Surfactant

    Soil-washing performance was quantified using reciprocal surfactant-soil solubilization coefficients (1/Kd), and two phases of soil-washing mechanisms were identified depending on the presence of ...

  • 作者: Wei Chu
  • Effect of biosurfactants on crude oil desorption and

    Microbially produced biosurfactants were studied to enhance crude oil desorption and mobilization in model soil column systems. The ability of biosurfactants from Rhodococcus ruber to remove the oil from the soil core was 1.4–2.3 times greater than that of a synthetic surfactant of

  • Cited by: 186
  • Remediation of PCBs in soil by surfactant washing and

    Solutions from the washing of polychlorinated biphenyl (PCB)-contaminated soil with a variety of commercial nonionic or anionic surfactants were incubated with Pseudomonas sp ...

  • (PDF) PROCESS EVALUATION OF SOIL WASHING

    Mathematical model simulation was performed for the whole process, which consists of soil washing, soil recovery, and soil re-washing. The optimal range of surfactant dosage was -fold critical ...

  • (PDF) Optimization of aeration enhanced surfactant soil

    Soil washing using surfactants transfers the pollutants from the soil colloid to the soil solution due to two central mechanisms called mobilization and solubilization (Alzahid et al., 2019 ...

  • Removal of heavy metals from a contaminated soil using organic

    R. A. Wuana et al. ABSTRACT: Changes in heavy metal speciation and uptake by maize in a soil before and after washing with chelating organic acids, citric acid, tartaric acid and ethylenediaminetetraacetic acid were assessed. A sandy loam was collected from ...

  • Surfactants and subsurface remediation Environmental

    Use of cationic surfactants to modify soil surfaces to promote sorption and retard migration of hydrophobic organic compounds. Environmental Science Technology 1994, 28 (2) , 231-237. DOI: 10.1021/es00051a008.

  • Process Evaluation of Soil Washing Including Surfactant

    Mathematical model simulation was performed for the whole process, which consists of soil washing, soil recovery, and soil re-washing. The optimal range of surfactant dosage was $6{\sim}10$-fold critical micelle concentration in soil. The efficiency of surfactant

  • Surfactant-enhanced solubilization of residual dodecane in

    Switchable anionic surfactants for the remediation of oil-contaminated sand by soil washing. RSC Adv. 2014, 4 (9) , 4638-4645. DOI: 10.1039/C3RA47158F. Xiu

  • valuation of some polymeric surfactants for treating crude oil emulsions Part I: treatment of sandy soil

    Synthesis and evaluation of some polymeric surfactants for treating crude oil emulsions Part I: treatment of sandy soil polluted with crude oil by monomeric and polymeric surfactants A.M. Al-Sabagha,*, Nehal S. Ahmeda, Amal M. Nassara, M.M. Gabrb a Department of Petroleum Applications, Egyptian Petroleum Research Institute, Nasr City, Cairo 11727, Egypt

  • Evaluation of biosurfactants for crude oil contaminated soil washing

    Overview of soil washing With the growing interest of surfactants applications in environmental remediation, Abdul et al. (1990), Bognolo (1999), Bhandari et al. (2000), Barathi and Vasudevan (2001), McCray et al. (2001) have studied the removal of single and

  • Solubilization of Crude Oil by Extended and Other Anionic

    In the present study, the solubilization efficiency of an Algerian crude oil in the presence of three different anionic surfactants was investigated. The studied surfactants are extended surfactant sodium linear alkyl-polypropylene oxide-polyoxyethylene sulfate (X-AES), sodium dodecyl sulfate (SDS) and sodium dodecylbenzene sulfonate (SDBS). The three crude oil/surfactant systems were ...

  • Surfactant - Wikipedia

    Most commonly, surfactants are classified according to polar head group. A non-ionic surfactant has no charged groups in its head. The head of an ionic surfactant carries a net positive, or negative charge. If the charge is negative, the surfactant is more specifically ...

  • IJERPH Free Full-Text Remediation of PAH-Contaminated

    Surfactants are usually used in soil washing because they can enhance the solubility of PAHs, decrease the surface tension, and promote the efficiency of soil washing []. Among the surfactants, sodium dodecyl sulfate (SDS) is widely used in soil washing of

  • Desorption of hydrocarbon chains by association with ionic

    Snapshots of the encapsulation of HC through association with short chain non-ionic surfactants. These snapshots were taken from final configurations of the simulation at increasing surfactant ...

  • Sorption of Nonionic Organic Compounds in Soil-Water

    Utilizing surfactants to control the sorption, desorption, and biodegradation of phenanthrene in soil-water system Haiwei Jin , Wenjun Zhou , Lizhong Zhu Journal of

  • Removing of hydrocarbon contaminated soil via air

    W, Thibodeaux LJ (1998) Simulation of soil washing with surfactants. J Hazard Mater 59:107–122 CrossRef Google Scholar 2. Chou C-C, Ososkov V, Zhang L, Somasundaran P, (1998) Removal of vonvolatile hydrophobic compounds from artificially Soil ...

  • Gold Crusher South AfricaHPC Cone Crusher

    South Africa’s mineral resources mainly gold platinum group metal manganese vanadium chromium silicon aluminium acid salt etc are most of the metal in HPC Cone Crusher crushing therefore HPC Cone Crusher has been widely used in South Africa also is the

  • Electrokinetic Remediation of Pentachlorophenol

    This paper presents a bench-scale experimental study performed to investigate the remediation of low permeable soil contaminated with pentachlorophenol (PCP) using the electrokinetic technique. A total of six electrokinetic tests were performed using kaolin soil ...

  • Remediation with surfactant foam of PCP-contaminated

    Remediation with surfactant foam of PCP-contaminated soil Remediation with surfactant foam of PCP-contaminated soil Mulligan, Catherine N.; Eftekhari, Farzad 2003-11-01 00:00:00 An investigation was made into evaluating the capability of surfactants in the form of foam for removing the contaminant pentachlorophenol (PCP), a highly toxic, wood preservative, from soil.

  • Surfactant - Wikipedia

    Schematic diagram of a micelle of oil in aqueous suspension, such as might occur in an emulsion of oil in water. In this example, the surfactant molecules' oil-soluble tails project into the oil (blue), while the water-soluble ends remain in contact with the water phase (red). Surfactants are compounds that lower the surface tension (or ...

  • Surfactant-enhanced solubilization of residual dodecane in

    Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days. Citations are the ...

  • Water solubility enhancements of DDT and

    Polychlorinated biphenyls-contaminated soil washing with mixed surfactants enhanced by electrokinetics Tao Chen, Chengxun Sun Chemical Research in Chinese Universities 2016 32 (2) ...

  • Compounding of a Combinable Surfactant for Oil-Contaminated Soil Washing

    for oil-contaminated soil remediation,focusing on selecting an optimal combinable surfactant formula.The washing of contaminated-soil packed in PVC columns is conducted by solutions containing the surfactants,and an empirical model is that the ...