Effect of additives on biodegradation of PAH in soils

Sobisch, Titus; Hess, Henry M.; Niebelschütz, H.; Schmidt, Uwe

doi:10.1016/s0927-7757(99)00217-4

Cited by 28 publications

(10 citation statements)

References 3 publications

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“…While the results of these studies vary from biodegradation improvement (Sobisch et al . ; Hickey et al . ), having no effect (Laha and Luthy ) to biodegradation inhibition (Bramwell and Laha ; Doong and Lei ), we decided to test synthetic surfactant Tween 80 for this purpose.…”

Section: Discussionmentioning

confidence: 99%

Medium-chain-length polyhydroxyalkanoate production by newly isolated Pseudomonas sp. TN301 from a wide range of polyaromatic and monoaromatic hydrocarbons

et al. 2012

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Aims: The aim of this study was to convert numerous polyaromatic and monoaromatic hydrocarbons into biodegradable polymer medium-chain-length polyhydroxyalkanoate (mcl-PHA). Methods and Results: Using naphthalene enrichment cultivation method, we have isolated seven bacterial strains from the river sediment exposed to petrochemical industry effluents. In addition to naphthalene, all seven strains could utilize between 12 and 17 different aromatic substrates, including toluene, benzene and biphenyl. Only one isolate that was identified as Pseudomonas sp. TN301 could accumulate mcl-PHA from naphthalene to 23% of cell dry weight. Owing to poor solubility, a method of supplying highly hydrophobic polyaromatic hydrocarbons to a culture medium was developed. The best biomass and mcl-PHA yields were achieved with the addition of synthetic surfactant Tween 80 (0·5 g l À1 ). We have shown that Pseudomonas sp. TN301 can accumulate mcl-PHA from a wide range of polyaromatic and monoaromatic hydrocarbons, and mixtures thereof, while it could also accumulate polyphosphates and was tolerant to the presence of heavy metal (100 mmol l À1 cadmium and 20 mmol l À1 nickel). Conclusions: A new Pseudomonas strain was isolated and identified with the ability to accumulate mcl-PHA from a variety of aromatic hydrocarbons. Significance and Impact of the Study: This study is the first report on the ability of a bacterial strain to convert a range of polyaromatic hydrocarbon compounds to the biodegradable polymer (mcl-PHA). Mcl-PHA is gaining importance as a promising biodegradable thermoelastomer, and therefore, isolation of new producing strains is highly significant. Furthermore, this strain has the ability to utilize a range of hydrocarbons, which often occur as mixtures and could potentially be employed in the recently described efforts to convert waste materials to PHA.

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Section: Discussionmentioning

confidence: 99%

Medium-chain-length polyhydroxyalkanoate production by newly isolated Pseudomonas sp. TN301 from a wide range of polyaromatic and monoaromatic hydrocarbons

et al. 2012

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“…As an example, the HDTMA adsorbrd to the clay is essentially nontoxic to the pollutant-degrading bacteria in soils whereas aqueous phase HDTMA shows considerable toxicity [229]. There are many studies on biodegradation of organic hydrocarbons in presence of synthetic [162,218,221,225,[230][231][232][233][234][235][236][237] and biosurfactants [25,189,218,[237][238][239]. It has been found that surfactants have facilitate, retard, or no effect on biodegradation of organic hydrocarbons.…”

Section: Biodegradation Of Organic Hydrocarbonsmentioning

confidence: 99%

Surfactant-enhanced remediation of organic contaminated soil and water

Paria

2008

Advances in Colloid and Interface Science

447

237

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“…a system with its conditions determines whether or not a substance within it is biodegraded. Studies have shown that many compounds such as phosphorous and nitrogenous ones, are highly effective in promoting hydrocarbons to biodegrade, and have been successfully employed in the bio-remediation of petroleum polluted areas such as water and soil [12][13][14]. Promotion of biodegradation of a mineral lubricating oil by lauroyl glutamine is thus evidentially doable.…”

Section: Effect Of Lauroyl Glutamine On Biodegradability Of Lubricatimentioning

confidence: 99%

Effect of Lauroyl Glutamine on Biodegradation of Lubricating Oil and Simulation of Biodegradation Kinetics

Chen¹,

Wu²,

Fang³

et al. 2010

ENG

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Small amount of lauroyl glutamine was incorporated into HVI 350 mineral lubricating oil and the biodegradabilities of neat oil and the formulated oil in soils were evaluated. Thereafter, the biodegradation rate equations for the two lubricating oils were simulated based on the exponential model. The results indicated that lauroyl glutamine effectively promoted biodegradation of HVI 350 mineral lubricating oil. Under given test conditions, the exponential model well fitted the biodegradation of lubricating oils in soils. The biodegradation rate equation for HVI 350 mineral lubricating oil can be described as ln(St/S0) = –0.0155t, while that for the oil formulated with lauroyl glutamine as ln(St/S0) = –0.0235t. The biodegradation half-lives of neat oil and the formulated oils were 44.72 days and 29.50 days, respectively

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Effect of additives on biodegradation of PAH in soils

Cited by 28 publications

References 3 publications

Medium-chain-length polyhydroxyalkanoate production by newly isolated Pseudomonas sp. TN301 from a wide range of polyaromatic and monoaromatic hydrocarbons

Medium-chain-length polyhydroxyalkanoate production by newly isolated Pseudomonas sp. TN301 from a wide range of polyaromatic and monoaromatic hydrocarbons

Surfactant-enhanced remediation of organic contaminated soil and water

Effect of Lauroyl Glutamine on Biodegradation of Lubricating Oil and Simulation of Biodegradation Kinetics

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