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Enhanced Soil Washing of Phenanthrene by Mixed Solutions ...

Remediation of hexachlorobenzene contaminated soils by rhamnolipid enhanced soil washing coupled with activated carbon selective adsorption. Journal of Hazardous Materials 2011, 189 (1-2), 458-464.

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CLU-IN | Technologies > Remediation > About .

Many terms have been used to describe in situ flushing techniques, such as soil flushing, water flooding, chemically enhanced solubilization for aquifer remediation, surfactant-enhanced aquifer remediation, and in situ soil washing. Soil flushing is sometimes confused with soil washing because both use aqueous solutions to mobilize contaminants, but flushing is conducted in situ, whereas soil ...

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Remediation of Nitrobenzene Contaminated Soil .

Remediation of NB contaminated soil enhanced by the SDBS washing, gives a great advantage over degradation of the NB-SDBS effluent in the Fe 2+ /S 2 O 8 2 − system, because after NB was almost completely degraded at 97.9%, about half of the added SDBS was still remaining in solution. These provided a possibility for the reuse of the treated effluent for subsequent washing processes ...

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Surfactant Enhanced Washing of Drilling Fluids, a ...

His main research lines are a) surfactant-enhanced biodegradation of aged petroleum fractions in soils, b) in situ and ex situ soil washing, and c) preparation of petroleum fractions-surfactant-water emulsions, as a first step for fuel's biotreatments (e. g. biodesulfuration) d) rheology and mixing of sludges and suspensions applied to environmental problems.

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

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 influence on ...

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Enhanced Soil Washing of Phenanthrene by Mixed Solutions ...

Remediation of hexachlorobenzene contaminated soils by rhamnolipid enhanced soil washing coupled with activated carbon selective adsorption. Journal of Hazardous Materials 2011, 189 (1-2), 458-464.

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Ultrasound enhanced soil washing (Conference) | .

The development of an ultrasonic enhanced soil-washing process requires a comprehensive, well-designed experimental program, with the results carefully analyzed on the basis of known ultrasonic cleaning mechanisms. There has been no systematic work carried out to .

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Surfactant-Enhanced Washing of Soils .

An old automotive industrial site located at Mexico City with many years of operation and contaminated with heavy oil hydrocarbons, particularly spent oils, was assessed for restoration using the surfactant enhanced soil washing (SESW) process. The main goal of this study was to characterize the contaminated soil in terms of TPHs, BTEX, PAHs, and metals contents as well as microbiologically ...

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Enhanced Soil Washing of PCB by Sophorolipids .

Enhanced Soil Washing of PCB by Sophorolipids from Transformer Oil Contaminated Soil p.450. Characteristics and Origin of Loess Landslides on Loess Terraces at Heifangtai, Gansu Province, China p.455. Poly(vinylidene fluoride) (PVDF) Membrane Preparation with an Ionic Liquid via Thermally Induced Phase Separation Melt Technology p.462. Numerical Simulation on South American Coal Reburning .

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Removal of Copper Ions from Contaminated Soil .

The most efficient extracting solutions could be used as purging/extracting solutions in other technologies such as soil washing. Several batch tests were conducted to be optimizing the various parameters like stirring speed, mixing time, surfactant-chelating .

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Enhanced Soil washing - Boskalis Environmental

Enhanced Soil washing - Boskalis Environmental Boskalis Environmental is a leader in the large-scale washing of soil and mineral waste materials (from sewers, drains, pumping stations and street sweeping waste; incinerator bottom ash [IBA]).

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(PDF) Remediation of Contaminated Soils by .

Soil-washing performance curve (1/K d ) for HOCs at various Brij 35 concentrations, where 3.75 g of Tai Mo Shan soil at various concentrations of Brij 35 surfactant solutions higher than CMC soil ...

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SURFACTANT-ENHANCED IN SITU o SOILS WASHING · PDF file

to demonstrate the feasibility of using surfactants to enhanced the washing of petroleum And solvent contaminated soils. A pilot-scale test of in situ soils washing was performed at an abandoned fire training area using several surfactant solutions. The results of this study did not show in situ soils washing as a proven and reliable remediation technology. Several shortfa-- were observed and ...

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Surfactant Enhanced Washing Of Soil Contaminated With ...

Surfactant Enhanced Washing of Soil Contaminated wi th Petroleum Hydrocarbons and Treatment of Produced Wa stewaters Using a Biofilter Evelyn Zamudio-Pérez 1, Erick R. Bandala 2, Luis C. Fernandez 1, Luis G.Torres* 1UPIBI- Instituto Politécnico Nacional. Av. Acueducto s.n. Colonia Barrio la Laguna Ticomán. México 07340 DF, México.

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Enhanced soil-washing treatment for soils which are highly ... · PDF file

enhanced soil washing is one of the most promising. Surfactant enhanced washing of soils is a remediation technology, which has demonstrated being a high cost-effective process. The first step in the washing process development is the selection of the suitable surfactants and doses. In this work, twelve anionic and nonionic surfactants and their mixtures were assessed in the remediation of ...

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Surfactant Enhanced Washing of Drilling Fluids, a ...

His main research lines are a) surfactant-enhanced biodegradation of aged petroleum fractions in soils, b) in situ and ex situ soil washing, and c) preparation of petroleum fractions-surfactant-water emulsions, as a first step for fuel's biotreatments (e. g. biodesulfuration) d) rheology and mixing of sludges and suspensions applied to environmental problems.

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Integrating EDDS-enhanced washing with low .

While chelant-enhanced soil washing has been widely studied for metal extraction from contaminated soils, there are concerns about destabilization and leaching of residual metals after remediation. This study integrated 2-h soil washing enhanced by biodegradable ethylenediaminedisuccinic acid (EDDS) and 2-month stabilization using agricultural waste product (soybean stover biochar pyrolyzed at ...

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Optimization of aeration enhanced surfactant .

13.02.2020 · 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 washing performance was enhanced by 12-25% through the incorporation of air bubbles into the low concentration surfactant soil ...

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Soil Washing | Geoengineer

Soil washing is an ex-situ remediation technique that removes hazardous contaminants from soil by washing the soil with a liquid (often with a chemical additive), scrubbing the soil, and then separating the clean soils from contaminated soil and washwater (US EPA 1993, 1996).

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Optimization of aeration enhanced surfactant soil washing ...

2020-02-13 · 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 washing performance was enhanced by 12-25% through the incorporation of air bubbles into the low concentration surfactant soil ...

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