Removal of an organic dye from water using a predispersed solvent extraction

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The removal of Solvent Yellow 1 in a range from 0.25 to 10 ppm by weight from an aqueous solution using a predispersed solvent extraction (PDSE) was investigated and compared with conventional solvent extractions in batch mode. Colloidal liquid aphrons (CLAs) made out of kerosene were used as a predispersed organic solvent. To form CLAs. Tergitol 15-S-3 and sodium dodecylbenzene sulfonate were used as oil-soluble and water-soluble surfactants, respectively. The ratio of solvent volume to pregnant solution volume was less than 0.025. The efficiency of the extraction with CLAs can be higher than that of a single-staged conventional extraction process with a shorter contact time. The recovery of used CLAs with a colloidal gas aphrons (CGAs) flotation was measured using different surfactants. CLAs with an extremely large surface area can also reduce processing time and energy cost. PDSE is therefore a promising process for the removal of organic materials from water.
Publisher
MARCEL DEKKER INC
Issue Date
2000-09
Language
ENG
Article Type
Article
Keywords

COLLOIDAL GAS APHRONS; SEPARATION; FLOTATION; COFLOTATION; POLYAPHRONS

Citation

SEPARATION SCIENCE AND TECHNOLOGY, v.35, no.12, pp.1951 - 1962

ISSN
0149-6395
URI
http://hdl.handle.net/10203/3449
Appears in Collection
NE-Journal Papers(저널논문)
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