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Journal ArticleDOI

Biodegradability of biodiesel in the aquatic environment

X. Zhang, +4 more
- 01 Jan 1998 - 
- Vol. 41, Iss: 5, pp 1423-1430
TLDR
In this paper, the biodegradability of various biodiesel fuels was examined by the CO2 evolution method (EPA 560/6-82-003), BOD5 (EPA 405.1), COD (EPA 410), and gas chromatography (GC) analyses in an aquatic system.
Abstract
The biodegradability of various biodiesel fuels was examined by the CO2 evolution method (EPA 560/6-82-003), BOD5 (EPA 405.1), COD (EPA 410), and gas chromatography (GC) analyses in an aquatic system. The fuels examined included the methyl- and ethyl-esters of rapeseed oil and soybean oil, neat rapeseed oil, neat soybean oil and Phillips 2-D low sulfur, reference petroleum diesel. Blends of biodiesel/petroleum diesel at different volumetric ratios, including 80/20, 50/50, and 20/80, were also examined. The results demonstrate that all the biodiesel fuels are “readily biodegradable”. Moreover, in the presence of REE, the degradation rate of petroleum diesel increased to twice that of petroleum diesel alone. The pattern of biodegradation in the blends and reasons why biodiesel is more readily degradable than petroleum diesel are discussed. The biodegradation monitoring results from both CO2 evolution and GC methods are compared.

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Citations
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Journal ArticleDOI

Progress and recent trends in biodiesel fuels

TL;DR: The most important variables affecting methyl ester yield during the transesterification reaction are the molar ratio of alcohol to vegetable oil and the reaction temperature as discussed by the authors, which is the commonly used alcohol in this process, due to its low cost.
Journal ArticleDOI

Importance of biodiesel as transportation fuel

Ayhan Demirbas
- 01 Sep 2007 - 
TL;DR: Biodiesel is defined as the monoalkyl esters of vegetable oils or animal fats as mentioned in this paper and is the best candidate for diesel fuels in diesel engines, which is the main advantage that biodiesel has over gasoline and petroleum diesel.
Journal ArticleDOI

Advancements in development and characterization of biodiesel: A review

TL;DR: In this paper, the authors have discussed the development of biodiesel and its latest aspects of development, including biodegradability, kinetics involved in the process, and its stability have been critically reviewed.

Review article Advancements in development and characterization of biodiesel: A review

Y. C. Sharma, +1 more
TL;DR: In this paper, the authors have discussed the development of biodiesel and its latest aspects of development, including biodegradability, kinetics involved in the process of the biodiesel production, and its stability.
Journal ArticleDOI

Biodiesel and renewable diesel: A comparison

TL;DR: In this paper, the authors discuss in a general and comparative fashion aspects such as fuel production and energy balance, fuel properties, environmental effects including exhaust emissions and co-products, and what the effect of production scale may be.
References
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Book

Handbook of Chemical Property Estimation Methods: Environmental Behavior of Organic Compounds

TL;DR: In this article, the authors present a handbook containing selected estimation methods for physicochemical properties of organic chemicals, including conventional properties off pure materials, properties that describe how a chemical behaves or interacts with a second substance (solubility in water, diffusion coefficient in air, interfacial tension with water), and the fate of trace concentrations in specific environmental situations.
Book

Assessment and Remediation of Petroleum Contaminated Sites

TL;DR: In this paper, the Corrective Action Plan for Data Integration and Technology Selection (CATSP) is presented. But it does not address the problem of data integration and technology selection.
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