Opening Hours : Providing solution design within 24 hours

Call Now

0086-21-58385887

soil washing surfactants

  • Home
  • soil washing surfactants

Soil Washing Potential of a Natural Surfactant ...

Deze pagina vertalen

Journal of Surfactants and Detergents 2000, 3 (1), 43-46. DOI: 10.1007/s11743-000-0111-6. Chunlong Zhang, Kalliat T. Valsaraj, W. David Constant, Dipak Roy. Surfactant screening for soil washing: Comparison of foamability and biodegradability of a plant‐based surfactant with commercial surfactants.

Get Price

Tea saponins: effective natural surfactants beneficial for ...

Tea saponins, found in Camellia plants, are natural non-ionic surfactants that offer obvious beneficial effects in soil remediation. Most tea saponins are extracted from the Camellia oleifera seed meal, with .

Get Price

Soil Washing Potential of a Natural Surfactant ...

Surfactant screening for soil washing: Comparison of foamability and biodegradability of a plant‐based surfactant with commercial surfactants. Journal of Environmental Science and Health, Part A 1998, .

Cited by: 125Get Price

Remediation of phenanthrene contaminated soils by nonionic ...

Synergistic behaviors may be observed when anionic and nonionic surfactants are mixed, and anionic surfactants can reduce sorption of nonionic surfactants in soil (Zhou & Zhu 2007, 2008). Therefore, a .

Get Price

Laundry detergent - Wikipedia

However, repulsive forces between soil and fibers alone do not produce satisfactory washing results even at high pH. The optimum pH range for good detergency is 9–10.5. Builder and surfactant work synergistically to achieve soil removal, and the washing effect of the builder may exceed that of the surfactant.

Get Price

Effect of Ultrasound on Surfactant-Aided Soil Washing

 · PDF-bestand

Soil washing is a process of transferring contaminants from the soil phase to the water-based liquid phase and it has been used extensively. Soil washing with surfactants has been successfully1–4) employed to remove adsorbed or deposited organics including polychlorinated biphenyl and polycyclic aromatic hydrocarbon from soil.5) Surfactants

Get Price

Effect of Surfactant Types on Washing of Diesel ...

 · PDF-bestand

With mixed surfactants of T15S7 and SDS as 3 : 1 ratio, diesel removal was enhanced to 76% with 10 g/L of the mixed surfactants. These results could be used in the selection of proper surfactants for remediation of diesel contaminated soils. Key words : Soil washing.

Get Price

Cleaning up contaminated soil, groundwater

Surfactants aid in soil and groundwater clean up by dissolving contaminants, such as oil or dry cleaning fluids. Surfactants make the removal of contaminants easier and faster.

Get Price

Remediation of phenanthrene contaminated soils by .

Traduire cette page

Thus, higher washing efficiency is not beneficial for surfactant reuse, which is consistent with previous studies on soil washing using various surfactants (Ahn et al. 2008a, b). In the adsorption step, the highest PHE removal was observed at 2 g/L surfactant; this phenomenon may be attributed to the relatively low PHE concentration in the soil washing solution. However, the removal ...

Get Price

Removal of Cationic Heavy Metal and HOC from Soil-Washed ...

Abstract: Soil washing process with a surfactant solution is a potential technology for the rapid removal of hydrophobic organic compound (HOC) from soil. However, large amount of washed water would be produced during operation and this should be treated effectively by proper methods. The soil .

Get Price

(PDF) Surfactant-Enhanced Soil Washing for .

Deze pagina vertalen

surfactants commonly used for soil washing are sum-marized in T able I, with their molecular formulae and. weights presen ted. Besides these commonly used sur-

Get Price

Soil remediation: humic acids as natural surfactants in ...

 · Fichier PDF

Different classes of surfactants are employed for soil washing depending on the nature of contaminants to be removed. For example, pesticides are removed by non-ionic surfactants such as .

Get Price

EFFECT OF SOIL WASHING ON PETROLEUM- HYDROCARBON ...

 · Fichier PDF

Key words: soil washing, petroleum hydrocarbons, surfactant, humic acids, SEM INTRODUCTION Soil washing and flushing have been proposed as possible remediation technologies for soils contaminated by petroleum hydrocarbons and other hydrophobic organic chemicals (Nash, 1987; Nash and Traver, 1988; Nunno et al., 1988; Esposito et al., 1989; Pheiffer, 1990). The effective-ness of soil washing .

Get Price

Soil Washing Potential of a Natural Surfactant ...

Traduire cette page

27/02/1997 · Surfactant screening for soil washing: Comparison of foamability and biodegradability of a plant‐based surfactant with commercial surfactants. Journal of Environmental Science and Health, Part A 1998, 33, 1249-1273. DOI: 10.1080/10934529809376787. Raghava R Kommalapati, Kalliat T Valsaraj, W.David Constant, Dipak Roy. Soil flushing using colloidal gas aphron suspensions generated from a ...

Get Price

Aqueous Surfactant Washing of Residual Oil .

Traduire cette page

D. Roy, A. Tamayo, K. T. Valsaraj, Comparison of Soil Washing Using Conventional Surfactant Solutions and Colloidal Gas Aphron Suspensions, Separation Science and Technology, 10.1080/01496399208029223, 27, 12, (1555-1568), (2006). Crossref. Seung-Woo Jeong, Evaluation of the use of capillary numbers for quantifying the removal of DNAPL trapped in a porous medium by surfactant and surfactant ...

Get Price

Removal of PAHs with surfactant-enhanced soil washing ...

 · Fichier PDF

Surfactant-enhanced soil washing Influencing factors Removal ratio Solubilization effectiveness abstract PAH removal with surfactant enhanced washing was investigated through a series of laboratory tests to examine the effect of stirring speed, washing time, surfactant concentration, liquid/solid ratio, tempera-ture, and on-and-off mode. The first four factors show significant .

Get Price

SURFACTANT SELECTION FOR ENHANCING EX SITU SOIL WASHING

 · PDF-bestand

situ soil washing (e.g. solubilization, sorption). (3) Qualitatively evaluate additional surfactant properties that will a•ect the soil washing process (e.g. foaming, phase separation, precipitation), and (4) based on the above results provide guidelines for evaluating and selecting surfactants for a given soil washing activity. This research ...

Get Price

Laundry detergent - Wikipedia

Deze pagina vertalen

Laundry detergent, or washing powder, is a type of detergent (cleaning agent) used for cleaning laundry.Laundry detergent is manufactured in powder and liquid form. While powdered and liquid detergents hold roughly equal share of the worldwide laundry detergent market in terms of value, powdered detergents are sold twice as much compared to liquids in terms of volume.

Get Price

Should You Use Dish Soap With Weed Killer? | Zamzows

Jul 11, 2018 · Surfactants are compounds that lower the surface tension of a liquid. Surfactants may act as detergents, wetting agents, emulsifiers, foaming agents, and dispersants. The lowering of the .

Get Price

Switchable anionic surfactants for the remediation .

Deze pagina vertalen

Because soil washing requires anionic surfactants, we have investigated phenolate, benzoate and carboxylate salts as switchable anionic surfactants. These surfactants can indeed be switched on and off with CO 2. Three switchable anionic surfactants (sodium 2-nitro-4- ...

Get Price

Surfactant-Enhanced Treatment of Oil-Contaminated Soils ...

The overall goal of this research is to significantly improve soil washing of oil-based drill cuttings and oil-contaminated soils. In past research within our institute we have demonstrated that surfactant .

[PDF]Get Price