Evaluation of the biodegradation of different types of lubricant oils in liquid medium

Lopes, Paulo Renato Matos; Bidóia, Edério Dino

doi:10.1590/s1516-89132009000500028

Cited by 19 publications

(6 citation statements)

References 12 publications

(10 reference statements)

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“…The mineral lubricant oil is formed by a mixture of different molecules, so it shows difference in biodegradation and toxicity compared to synthetic lubricant oil. Synthetic oil presents known structures, it is composed of molecules produced in refinery and in many cases it becomes more biodegradable (Lopes et al 2010;Lopes and Bidoia 2009). According to Lopes et al (2010) e Lopes and Bidoia (2009), the used lubricant oils are biodegraded more easily, followed by the semi-synthetic oil and finally, the mineral oil.…”

Section: Resultsmentioning

confidence: 99%

“…This causes its toxicity to be high in biodegradation periods (Fig. 1, 2 and 3) mainly in tests with E. sativa and E. andrei, despite the fact that oil molecules are more degraded due to the engine's high temperature and compression levels (Eisentraeger 2002;Lopes and Bidoia 2009). The fact that the chain is more or less degraded does not necessarily mean that the toxicity level is lower.…”

Section: Resultsmentioning

confidence: 99%

“…The inoculum was a mixture of oil or biodiesel, surfactant (Tween 80), distilled water and soil according to the following proportions: 7.5 mL of contaminant (oils), 0.15 g of surfactant, 6.25 mL of distilled water and 100 g of test soil. The inoculum was prepared based on Lopes and Bidoia (2009) and Montagnolli et al (2009). For each type of contaminant, the procedure was performed as follows: 4800 g of sand was mixed with 360 mL of contaminant, 300 mL of distilled water and 7.2 g of surfactant (Tween 80).…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Biodegradation and toxicological evaluation of lubricant oils

Tamada

Lopes

Montagnolli

et al. 2012

Braz. arch. biol. technol.

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The aim of this work was to compare different toxicity levels of lubricant oils. The tests were performed using the earthworm (Eisenia andrei), arugula seeds (Eruca sativa) and lettuce seeds (Lactuca sativa), with three types of contaminants (mineral lubricant oil, synthetic lubricant oil and used lubricant oil) for various biodegradation periods in the soil. The toxicity tests indirectly measured the biodegradation of the contaminants. The samples were analyzed at t0, t60, t120 and t180 days of biodegradation. The used lubricant oil was proved very toxic in all the tests and even after biodegradation its toxicity was high.The mineral and synthetic oils were biodegraded efficiently in the soil although their toxicity did not disappear completely after 180 days.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Biodegradation and toxicological evaluation of lubricant oils

Tamada

Lopes

Montagnolli

et al. 2012

Braz. arch. biol. technol.

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“…Table 1 presents the contaminated samples composition that was prepared according to an adapted Lopes & Bidoia (2009) methodology. In preparing the test control, the volume of contaminant was replaced by distilled water.…”

Section: Methodsmentioning

confidence: 99%

Phytotoxicity of Soil Contaminated with Petroleum Derivatives and Biodiesel

Cruz¹,

Lopes²,

Montagnolli³

et al. 2013

Ecotoxicol. Environ. Contam.

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The inhibition of root and hypocotyl elongation may reflect toxic substances in low concentrations, which are not sufficient to prevent germination, but may delay or inhibit root and hypocotyl growth. The objective of this study was to evaluate root and hypocotyl growth inhibition in Cucumis sativus, Brassica oleracea and Barbarea verna as a parameter for assessing soils toxicity when contaminated with diesel, lubricant oil and biodiesel. Thus, potential toxicity of contaminants was evaluated according to biodegradation time in soil by examining root and hypocotyl elongation inhibition. Results show that C. sativus root is the best indicator for diesel and lubricant oil reduced toxicity after biodegradation. It was also observed that biodiesel increases its toxicity after two months of biodegradation.

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“…Used car lubricants are highly toxic because of the presence of a high concentration of polycyclic aromatic hydrocarbons, which are known to be potential carcinogens. 16 Researchers from the University of Oulu (Finland), Department of Process and Environmental Engineering, have studied biodegradable motor oil in groundwater. They used the manometric respiratory method.…”

mentioning

confidence: 99%

Study of the Regeneration Cleaning of Used Mineral Oils – Ecotoxicological Properties and Biodegradation

Hybská¹,

Veľková²,

Samešová³

et al. 2018

Chem.Biochem.Eng.Q.

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The aim of the study was to establish and compare the model of the biodegradability and ecotoxicological properties of oil samples in aqueous environment.The unused new mineral oil Turbinol and used (after 1 year of usage) recovered oil Turbinol purified by the electrostatical method were the tested samples. For the determination of the ecotoxicological properties, the test organisms used were seeds of Sinapis alba L. and the small aquatic crustaceans Daphnia magna. Preliminary tests were positive and determined the acute toxicity with the values of IC 50 and EC 50 . Biodegradability was determined by the manometric method, in tests which lasted 28 days. Tests of toxicity were positive, and the samples were found to be hard to biodegrade. Determination of the oil composition by gas chromatography with mass detection (GC -MS); found that the composition of the electrostatically cleaned oil is comparable to the new oil, which is confirmed by the results obtained with the response inhibition in selected tests. Regeneration extends the oil life, reducing the cost of disposal of waste oils, saving fossil raw materials, thus belonging to the environmentally friendly techniques.

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Evaluation of the biodegradation of different types of lubricant oils in liquid medium

Cited by 19 publications

References 12 publications

Biodegradation and toxicological evaluation of lubricant oils

Biodegradation and toxicological evaluation of lubricant oils

Phytotoxicity of Soil Contaminated with Petroleum Derivatives and Biodiesel

Study of the Regeneration Cleaning of Used Mineral Oils – Ecotoxicological Properties and Biodegradation

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