Biodegradation and environmental behavior of biodiesel mixtures in the sea: An initial study

DeMello, Jared A.; Carmichael, Catherine A.; Peacock, Emily E.; Nelson, Robert K.; Arey, J. Samuel; Reddy, Christopher M.

doi:10.1016/j.marpolbul.2007.02.016

Cited by 119 publications

(52 citation statements)

References 36 publications

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“…The remaining hydrocarbons were branched chain alkanes: farnesane, norpristane, pristane and phytane, which are more resistant to biological deterioration. Pristane and phytane residues may be present in a system even after a month of continuous biodegradation (De Mello et al 2007), thus explaining the high C 17 and C 18 fraction residues. The consortium I species were also subjected to MATH measurements, to evaluate the changes in cell surface hydrophobocity (CSH) values for each specie after a week of cultivation on diesel oil (Fig.…”

Section: Resultsmentioning

confidence: 99%

The influence of cell immobilization by biofilm forming on the biodegradation capabilities of bacterial consortia

Ławniczak

Kaczorek

Olszanowski

2010

World J Microbiol Biotechnol

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Recent biodegradation researches are focused on improving the deterioration efficiency and maintaining the stability of microbial activity during the process. Immobilizing bacterial cells by using the adhesive method is a simple way to achieve both objectives. The purpose of this study was to evaluate how the immobilization of bacterial cells by the biofilm forming method influences the biodegradation efficiency of two different bacterial consortia-low diesel oil degraders (base deterioration efficiency \ 40%) and high phenol degraders (base deterioration efficiency [ 90%). The degradation tests were carried out on four different carriers (expanded clay pellets, polypropylene, polyvinyl chloride rings and paperboard). The obtained results show that biofilms may considerably increase the efficiency of low degraders. The best diesel oil deterioration (80%) was achieved when paperboard was used as a carrier. However, the immobilization of high degraders did not significantly influence their base biodegradation potential. A 6% increase was noted only for the expanded clay pellets.

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Section: Resultsmentioning

confidence: 99%

The influence of cell immobilization by biofilm forming on the biodegradation capabilities of bacterial consortia

Ławniczak

Kaczorek

Olszanowski

2010

World J Microbiol Biotechnol

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“…As with any other fuel, accidental spills of biodiesel or diesel/biodiesel blends into the subsurface may occur which can potentially lead to impacts on the environment and health. Therefore, a variety of studies have examined the aerobic biodegradation of biodiesel (DeMello et al 2007;Lutz et al 2006;Mariano et al 2008;Owsianiak et al 2009;Pasqualino et al 2006;Sendzikiene et al 2007). However, depending on the characteristics of the site and the amount spilled, anaerobic conditions may prevail over the aerobic ones.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Anaerobic Biodegradation of Different Types of Biodiesel on the Natural Attenuation of Benzene

Borges¹,

Dias²,

Danko³

2014

Water Air Soil Pollut

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In the present research work, different types of biodiesel were produced by a homogeneous alkali transesterification reaction using soybean oil, pork lard, and castor bean oil as raw materials, to evaluate how their different compositions may affect the biodegradability, namely, in the presence of benzene. Biodiesel was characterized according to the European standard EN 14214. The anaerobic biodegradation of the different types of biodiesel was examined as well as its influence on the biodegradation of benzene. Analyses were performed to determine the volume of methane (directly related to the anaerobic biodegradation of bio-diesel), the concentration of benzene over time, and the production of organic acids. The results showed methane production resulting from the anaerobic degradation of all biodiesel types. The differences between the degradation behavior of each fuel were negligible, contrary to what was expected; however, the amount of methane produced was low due to nutrient limitations. This fact was confirmed by the organic acid analysis as well as by the addition of new media. Anaerobic benzene biodegradation was found to be negatively impacted by the presence of all biodiesel types on average; therefore, the results of this study may impact management of sites that contain biodiesel and fuel hydrocarbon contamination.

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“…57 Other advantages of biodiesel are the absence of aromatic hydrocarbons, low or no sulfur content and a positive energy balance. Some advantages in the use of FAME as green solvents in the formulation of microemulsions are their lower toxicity, [71][72][73] rapid biodegradability in soil, 74 low vapour pressure and non-inflammability. 75 The problems due to the over-production of glycerol induced by the classical processes of transesterification can be avoided by the production of "TBK" biodiesel.…”

Section: Introductionmentioning

confidence: 99%

Microemulsions with renewable feedstock oils

2012

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In this paper we discuss the influence of chemical structures of renewable feedstock oils (RFOs) on the domains of existence and the nano-structures of microemulsions. We compare the results to those of classical microemulsions containing classical n-alkanes. First, the domains of microemulsions obtained from the melt of water, sodium dodecyl sulfate (SDS) as surfactant, 1-pentanol as co-surfactant and different RFOs (or RFO melts) in pseudo-ternary phase diagrams are presented. A surfactantco-surfactant mass ratio of 1 : 2 is kept constant and the RFO (or RFO melt) is considered as a pseudo-constituent. Two different fatty methyl ester (FAME) biodiesels from rapeseed and cuphea oils, rapeseed oil, "TBK" biodiesel from rapeseed oil, limonene, and different mixtures of limonene to FAME-rapeseed biodiesel and FAME-rapeseed biodiesel to FAME-cuphea biodiesel are used as RFOs or RFO melts. Second, conductivity data are shown along an experimental path having a constant RFO or RFO melt : (surfactant-co-surfactant) mass ratio, whereas the water content is varied. All obtained data are then compared to data from previous studies with a series of n-alkanes (from n-hexane to n-hexadecane). As the main conclusion it is found that RFOs or RFO melts can easily substitute n-alkanes. From the chemical structure of the oils, it appears that not only the polarity of the oil plays an important role but also does the absolute size of the oil molecules. In all cases microemulsion systems exhibit percolative behavior.

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Biodegradation and environmental behavior of biodiesel mixtures in the sea: An initial study

Cited by 119 publications

References 36 publications

The influence of cell immobilization by biofilm forming on the biodegradation capabilities of bacterial consortia

The influence of cell immobilization by biofilm forming on the biodegradation capabilities of bacterial consortia

Influence of the Anaerobic Biodegradation of Different Types of Biodiesel on the Natural Attenuation of Benzene

Microemulsions with renewable feedstock oils

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