Flotation of hydrophobic contaminants from soil

Document Type

Conference Proceeding

Publication Date

2-28-2001

Abstract

Application of flotation for the removal of hydrophobic compounds from soils was studied. Bench scale flotation tests were conducted on artificially contaminated soil, using both a conventional mechanically agitated machine and a flotation column. Flotation parameters tested include collector type, conditioning time, flotation time, surfactant dosage, pulp pH, solid/liquid ratio in conditioning and pulp temperature. It was found that, with conventional flotation, 74% removal of the contaminant was achieved from soil particles in the range of 75-830 μm; with column flotation up to 80% of oil could be removed from the 250-830-μm soil fraction, and 65% from the 75-830-μm fraction. Flotation was found to have considerable potential for cleaning up contaminated soils. Copyright (C) 2000 Elsevier Science B.V.

Identifier

0035961779 (Scopus)

Publication Title

Colloids and Surfaces A Physicochemical and Engineering Aspects

External Full Text Location

https://doi.org/10.1016/S0927-7757(00)00681-6

ISSN

09277757

First Page

235

Last Page

246

Issue

2-3

Volume

177

Grant

CTS-9622781

Fund Ref

National Science Foundation

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