Application of nonionic surfactant-enhanced in situ flushing to a diesel contaminated site

Lee, Minhee; Kang, Hyunmin; Do, Wonhong

doi:10.1016/j.watres.2004.09.012

Cited by 110 publications

(55 citation statements)

References 18 publications

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“…Várias tecnologias de remediaçao in situ têm sido consideradas para remediação de solos e águas contaminados por derivados de petróleo como, por exemplo, extração de vapor, 3 tratamentos térmi-cos, 4 adição de surfactantes, 5 oxidações químicas usando reagentes de Fenton 6 e bioremediação. 7 A extração de vapor tem sido amplamente utilizada para remediação de solos contaminados com produtos de petróleo voláteis, tais como a gasolina.…”

Section: Introductionunclassified

Estudos de biodegradação de óleo diesel por consórcio microbiano coletado em Porto Velho - RO, amazônia

Luz¹,

Santos²,

Santos³

et al. 2011

Quím. Nova

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Recebido em 11/5/10; aceito em 1/12/10; publicado na web em 25/2/11 BIODEGRADATION STUDY OF DIESEL BY MICROBIAL CONSORTIUM COLLECTED IN PORTO VELHO -RO, AMAZONIA. The goal of this research was to evaluate the biodegradation of diesel by a microbial consortium collected in a region close to distributors of fuel. The experiments were monitored by SPME-GC-FID and SPME-GC-MS. The consortium showed a high potential for production of biosurfactants, presenting an emulsification index of 53%. The consortium degraded completely n-alkanes, while dimethylnaphtalene, hepthyl-cyclohexane and 2,6,10-trimethyl-undecane were partially degraded and pristane was not degraded. From this consortium five strains were isolated and identified as Acinetobacter baumannii. Based on this initial investigation this consortium appears to be effective for bioremediation in Porto Velho -RO region.

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Section: Introductionunclassified

Estudos de biodegradação de óleo diesel por consórcio microbiano coletado em Porto Velho - RO, amazônia

Luz¹,

Santos²,

Santos³

et al. 2011

Quím. Nova

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“…The results indicate that the majority of biopolymers, such as PAM, chitosan (85% deacetylated power), PEO, xanthan gum (xanthan), SA, and polyacrylic acid (PAA), have high viscosity and cause the oil-biopolymer solution displacement to increase in micromodel tests [8]. Water flushing, including soluble biopolymers, has been employed to enhance oil recovery due to their high viscosity and have been applied in the remediation of petroleum waste-contaminated sites [37][38][39][40][41][42][43]. The high viscosity of biopolymers causes an increase in both capillary number and mobility of fluid (Equations (1) and (2)).…”

Section: Biopolymer In Soil Remediation and Enhanced Oil Recoverymentioning

confidence: 99%

Characterization of Polyethylene Oxide and Sodium Alginate for Oil Contaminated-Sand Remediation

Jung

2017

Sustainability

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Abstract:Biopolymers have been employed in many soil applications, such as oil-contaminated soil remediation, due to their environmentally friendly characteristics. This study focused on changes in the wettability and viscosity of polyethylene oxide (PEO) and sodium alginate (SA), according to the variation in concentration and their impact on oil-contaminated soil remediation using biopolymer-decane displacement tests. The contact angle and interfacial tension vary with concentration by adding biopolymer to water; however both parameters yield relatively constant values within the range of 2-10 g/L for the concentration of PEO and SA. In this study, their influence on fluid invasion patterns is insignificant compared to viscosity and flow rate. Viscosity increases with the concentration of PEO and SA, within the range of 0-10 g/L, which causes the biopolymer-decane displacement ratio to increase with concentration. Biopolymer-decane displacement increases with injected fluid velocity. At low flow rates, the effect of the biopolymer concentration on the displacement ratio is prominent. However the effect decreases with an increase in flow rate. Thus both biopolymer concentration and injection velocity should be considered to achieve the economic efficiency of soil remediation. The experimental results for the distribution of soils with different grain sizes indicate that the displacement ratio increases with the uniformity of the coefficient of soils.

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“…In aqueous solution, surfactant molecules forms an internal conjugates called, "Micelle" in order (Rosen, 1989). Especially, the surfactant concentration at which 'Micellization' is beginning to occur, is called (Lee et al, 2005;Lee et al, 2012). In this study, a low concentration surfactant solution (0.1-0.2%(v/ v)) was used by using the dissolving mechanisms of xylene in groundwater, rather than by using the mobility of xylene…”

Section: Remediation Mechanism Of the Surfactantmentioning

confidence: 99%

“…Several remediation projects such as LPP (land partnership plan) and TKP (trans Korea pipeline) have been carried out on a large scale in Korea (Korea Rural Community Corporation, 2005, 2010. For petroleum contaminants, ex-situ remediation processes such as soil land farming, thermal desorption and soil washing have been applied mainly and in-situ soil remediation has been applied in very limited sites of Korea (Lee et al, 2005;Lee et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Pilot Scale Feasibility Test of In-situ Soil Flushing by using 'Tween 80' Solution at Low Concentration for the Xylene Contaminated Site

Um¹,

Lee²,

Song³

et al. 2013

Journal of Soil and Groundwater Environment

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This study was performed to identify the optimal operating conditions and to evaluate the xylene removal efficiency, applying in-situ soil flushing with the low concentrated solution of 'Tween 80' at the xylene contaminated site. The pilot scale test site (5 m × 5 m × 3 m), was mainly composed of 'sandy loam', with the average hydraulic conductivity of 9.1 × 10 −4 cm s. The average xylene concentration of the site was 42.1 mg kg, which was more than 2.5 times higher than Korea soil pollution warning limit (15 mg kg). For the soil flushing, 7,800 L of 0.1~0.2% surfactant solution was injected into three injection wells at the average injection time of 9 hr d −1 for 10 days, followed by the additional only groundwater injection of 6,000 L. The same amount of the effluent solution was extracted from three extraction wells. From the analysis for xylene concentration of all effluent at 3 extraction wells, total 166 g of xylene was removed by insitu surfactant flushing. Even though the residual xylene concentrations of 7 soil sampling locations in the test site were different due to the soil heterogeneity, from the comparison of xylene concentration at 7 locations before/after the feasibility test, 53.9% of the initial xylene in the site was removed from three extraction wells (mainly Ext-N and Ext-M well). The results showed that the in-situ soil flushing by using low concentrated 'Tween 80' solution had a great potential to remediate the xylene contaminated site.

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Application of nonionic surfactant-enhanced in situ flushing to a diesel contaminated site

Cited by 110 publications

References 18 publications

Estudos de biodegradação de óleo diesel por consórcio microbiano coletado em Porto Velho - RO, amazônia

Estudos de biodegradação de óleo diesel por consórcio microbiano coletado em Porto Velho - RO, amazônia

Characterization of Polyethylene Oxide and Sodium Alginate for Oil Contaminated-Sand Remediation

Pilot Scale Feasibility Test of In-situ Soil Flushing by using 'Tween 80' Solution at Low Concentration for the Xylene Contaminated Site

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