In-situ surfactant/surfactant-nutrient mix-enhanced bioremediation of NAPL (fuel)-contaminated sandy soil aquifers

Zoller, Uri; Reznik, A.

doi:10.1065/espr2006.03.295

Cited by 8 publications

(4 citation statements)

References 16 publications

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“…Yet another promising approach to improve bioremediation rates is to add biodegradable solvents to assist desorption and dissolution rates with consequent increase in the biodegradation of the adsorbed pollutants (Ludmer et al 2009). Zoller and Reznik (2006) have developed a surfactant/surfactant-nutrient mix (SSNM) for enhanced bioremediation methodologies for sustainable, in situ bioremediation of fuel-contaminated aquifers. The major findings of this study were the kerosene's maximum enhanced mobilization compared with that of deionized water when using SSNM having composition of linear alkylbenzene sulphonate (LABS): coco-amphodiacetate (containing N): surfactant-nutrient X (containing both N and P) at 0.15: 0.15: 0.05 g/l, respectively.…”

Section: Bioavailability Of Pollutantsmentioning

confidence: 99%

A comprehensive overview of elements in bioremediation

Juwarkar

Singh

Mudhoo

2010

Rev Environ Sci Biotechnol

304

128

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Sustainable development requires the development and promotion of environmental management and a constant search for green technologies to treat a wide range of aquatic and terrestrial habitats contaminated by increasing anthropogenic activities. Bioremediation is an increasingly popular alternative to conventional methods for treating waste compounds and media with the possibility to degrade contaminants using natural microbial activity mediated by different consortia of microbial strains. Many studies about bioremediation have been reported and the scientific literature has revealed the progressive emergence of various bioremediation techniques. In this review, we discuss the various in situ and ex situ bioremediation techniques and elaborate on the anaerobic digestion technology, phytoremediation, hyperaccumulation, composting and biosorption for their effectiveness in the biotreatment, stabilization and eventually overall remediation of contaminated strata and environments. The review ends with a note on the recent advances genetic engineering and nanotechnology have had in improving bioremediation. Case studies have also been extensively revisited to support the discussions on biosorption of heavy metals, gene probes used in molecular diagnostics, bioremediation studies of contaminants in vadose soils, bioremediation of oil contaminated soils, bioremediation of contaminants from mining sites, air sparging, slurry phase bioremediation, phytoremediation studies for pollutants and heavy metal hyperaccumulators, and vermicomposting.

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Section: Bioavailability Of Pollutantsmentioning

confidence: 99%

A comprehensive overview of elements in bioremediation

Juwarkar

Singh

Mudhoo

2010

Rev Environ Sci Biotechnol

304

128

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“…The full, detailed description of the column/flow and vessel/static Jab experiments is provided else-where [ 12],…”

Section: Methodsmentioning

confidence: 99%

Surfactant-nutrient mix-enhanced bioremediation of soil/aquifers

Zoller

2019

Eco-Tech

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Our research involves the development of economically feasible surfactant/surfactant-nutrient mix (SSNM) -enhanced bioremediation methodology for sustainable, in situ bioremediation of fuel-contaminated aquifers via in vitro column-based optimization of an effective SSNM and the study of its effect on the solubilization/mobilization and biodegradation of NAPL (fuel) in in vitro site/aquifer-simulated bioremediation, The essence of our findings: kerosene's maximum enhanced mobilization -f= 3,6, compared with that of deionized water, was achieved with an SSNM having the composition of linear alkylbenzene sulfonate: coco amphodiacetate: surfactant-nutrient X = 0, I 5: 0, I 5: 0,05 g/L, respectively; 60-64% of the initial amount of kerosene in the "packed" saturated soil matrix, has been eluted from it during -30 days, compared with -87% of toluene during the same time period and 68% of kerosene biodegradation in "vessel" settings, in 21 days, In conclusion: The indigenous microorganisms present in the vaduse zones of fuel-contaminated sandy soil aquifers are capable of removing up to ~81 % of the initially contained kerosene in ~42 days, Optimized SSNMs enhance both, mobilization of the balky NAPLs and the desorbtion/solubilization/ dispersion of the entrapped NAPL which, in tum, facilitate their enhanced biodegradation,

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“…hydrocarbon bioavailability). Therefore, in addition to nutrients, some natural or synthetic surfactants are also added to the contaminated soils to increase the water solubility of hydrocarbons and consequently their mass transfer rate (Franzetti et al 2008;Van Hamme and Urban 2009;Zoller and Reznik 2006). Synthetic surfactants are petrochemically-driven surface-acting agents, while the biosurfactants (i.e.…”

Section: Biostimulationmentioning

confidence: 99%

Bioremediation treatment of hydrocarbon-contaminated Arctic soils: influencing parameters

Naseri

Barabadi

Barabady

2014

Environ Sci Pollut Res

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The Arctic environment is very vulnerable and sensitive to hydrocarbon pollutants. Soil bioremediation is attracting interest as a promising and cost-effective clean-up and soil decontamination technology in the Arctic regions. However, remoteness, lack of appropriate infrastructure, the harsh climatic conditions in the Arctic and some physical and chemical properties of Arctic soils may reduce the performance and limit the application of this technology. Therefore, understanding the weaknesses and bottlenecks in the treatment plans, identifying their associated hazards, and providing precautionary measures are essential to improve the overall efficiency and performance of a bioremediation strategy. The aim of this paper is to review the bioremediation techniques and strategies using microorganisms for treatment of hydrocarbon-contaminated Arctic soils. It takes account of Arctic operational conditions and discusses the factors influencing the performance of a bioremediation treatment plan. Preliminary hazard analysis is used as a technique to identify and assess the hazards that threaten the reliability and maintainability of a bioremediation treatment technology. Some key parameters with regard to the feasibility of the suggested preventive/corrective measures are described as well.

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In-situ surfactant/surfactant-nutrient mix-enhanced bioremediation of NAPL (fuel)-contaminated sandy soil aquifers

Abstract: Our findings suggest that pre-optimized, biodegradable SSNM is essential for surfactants-based bioremediation of NAPL-contaminated aquifers, in order to make this in-situ methodology both technologically and economically feasible.

Cited by 8 publications

References 16 publications

A comprehensive overview of elements in bioremediation

A comprehensive overview of elements in bioremediation

Surfactant-nutrient mix-enhanced bioremediation of soil/aquifers

Bioremediation treatment of hydrocarbon-contaminated Arctic soils: influencing parameters

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