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Chemical and Biochemical Engineering Quarterly, Vol. 31 No. 4, 2017.

Original scientific paper

https://doi.org/10.15255/CABEQ.2017.1109

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

H. Hybská orcid id orcid.org/0000-0003-3723-1040 ; Department of Environmental Engineering
V. Veľková ; Department of Fire Protection
D. Samešová orcid id orcid.org/0000-0002-3044-859X ; Department of Environmental Engineering
J. Fialová orcid id orcid.org/0000-0003-3236-7627 ; Department of Environmental Engineering
M. Kučera ; Department of Mechanics, Mechanical Engineering and Design: Technical University in Zvolen, T. G. Masaryka 24, 960 53 Zvolen, Slovakia

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Abstract

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 IC50 and EC50. 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.







This work is licensed under a Creative Commons Attribution 4.0 International License.

Keywords

mineral oil; electrostatical method; biodegradation; ecotoxicity; gas chromatography

Hrčak ID:

192353

URI

https://hrcak.srce.hr/192353

Publication date:

10.1.2018.

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