Biodegradation of diesel/biodiesel blends in saturated sand microcosms

Environmental Impact Associated with the Supply Chain and Production of Biodiesel from Jatropha curcas L. through Life Cycle Analysis

“…It is worth mentioning that according to the literature consulted, some authors pointed out that regarding the biodegradation of diesel/biodiesel blends over petroleum diesel, the only advantage is a lower initial load of petroleum hydrocarbons in case of a spill [4]. Nevertheless, due to the increase in the price of hydrocarbons and considering them a non-renewable resource, biofuels emerge as an…”

Culture-Independent Analysis of Bacterial Diversity during Bioremediation of Soil Contaminated with a Diesel-Biodiesel Blend (B10)S

“…They may be involved in the fixation of atmospheric N [32,33] or denitrification [34,35] and are often isolated from the soil rhizosphere [36]. Soil bacteria often have an inherent capacity for degradation of recalcitrant organic compounds [9,10,37]. The ability to tolerate high concentrations of the blend B10 in a liquid medium was observed in these microorganisms as well as the degradation ability in the soil at the intervention concentration of 36 g.TPHKg Bioremediation strategies for blend B10 degradation: The bioremediation experiment was evaluated for 28 days by quantifying the heterotrophic populations and degraders (MPN estimate), CO 2 release by respirometry, and degradation of blend B10 by gas chromatography microorganisms.…”

“…The approach that uses autochthonous microorganisms from the corresponding environment can optimize the decontamination process. Since potentially degrading microbial communities are ubiquitously present, increasing the population by bioaugmentation may be a way of accelerating remediation [9,10,12]. Even if preliminary tests identify specific bacteria that efficiently degrade biodiesel at high concentrations in a lab setting, there is no guarantee that the microbes will degrade as efficiently in a soil environment [45].…”

“…Due to its composition of mainly methyl or ethyl esters of fatty acids, biodiesel has benefits over petroleum-derived oil in that engines burning biodiesel emit considerably lower levels of particulates, CO 2 , and volatile compounds [5]. Because biodiesel consists of natural compounds, it is considered more biodegradable than petroleum hydrocarbons (diesel) and promotes microbial growth [2][3][4][5][6][7][8][9]. Environmental agencies across the world are promoting the disposal of hydrocarbon residues at suitable sites and acceptable contamination levels.…”

Measuring the Light Crude Oil (Lco) Content in Standard Biodiesel/Lco Blends by Thermal Analysis

“…7,8 Gas chromatography has also been reported to be used as an analytical tool to study crude oil degradation. 9,10 Although gas chromatography is a reliable analytical tool, it is time consuming, laborious and requires special chemical standards.…”