Utilization of Waste Lubricating-Cooling Fluids by Membrane Methods

Utilization of waste lubricating-cooling fluids (LCF) cleaned preliminarily by membrane methods is investigated and, based on results of the investigation, an LCF utilization scheme is proposed. The scheme includes the following cleaning stages: coalescence, adsorption, ultrafiltration, nanofiltrati...

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Bibliographic Details
Published in:Chemistry and technology of fuels and oils 2015-03, Vol.51 (1), p.93-98
Main Authors: Fazullin, D. D., Mavrin, G. V., Sokolov, M. P.
Format: Article
Language:English
Subjects:
Adsorption
Chemistry
Chemistry and Materials Science
Geotechnical Engineering & Applied Earth Sciences
Industrial Chemistry/Chemical Engineering
Methods
Mineral Resources
Surface active agents
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Summary:Utilization of waste lubricating-cooling fluids (LCF) cleaned preliminarily by membrane methods is investigated and, based on results of the investigation, an LCF utilization scheme is proposed. The scheme includes the following cleaning stages: coalescence, adsorption, ultrafiltration, nanofiltration, and ion exchange. The first stage is intended for preliminary removal of oil products and suspended matter from the LCF by thin-layer coalescence on polymer plates. In the ultrafiltration stage, oil products, surfactants, and suspended matter are removed by a composite carbon sorbent. Oil products, surfactants, fats, etc. are completely removed, and the mineral content of the water is reduce by roll ultra-nanofiltration membrane elements, and heavy metals are removed from the nanofiltrate by ion-exchange membranes. After the last stage, the cleaned water meets the standards of effluents to be discharged into a drainage system. The overall degree of removal of suspended matter, oil products, surfactants, fats, etc. is 99 % at the outlet.
ISSN:0009-3092
1573-8310
DOI:10.1007/s10553-015-0579-8