Removal of pesticides in water by microbial cells adsorbed to magnetite

Mac Rae I.C. (1985) Removal of pesticides in water by microbial cells adsorbed to magnetite. Water Research, 19 7: 825-830. doi:10.1016/0043-1354(85)90139-3


Author Mac Rae I.C.
Title Removal of pesticides in water by microbial cells adsorbed to magnetite
Journal name Water Research   Check publisher's open access policy
ISSN 0043-1354
Publication date 1985
Sub-type Article (original research)
DOI 10.1016/0043-1354(85)90139-3
Volume 19
Issue 7
Start page 825
End page 830
Total pages 6
Subject 1904 Performing Arts and Creative Writing
Abstract The removal of lindane (γ-isomer of 1,2,3,4,5,6-hexachlorocyclohexane), 2.4-D (2,4-dichlorophenoxyacetic acid) and 2,4,5-T (2,4,5-trichlorophenoxyacetic acid) from water by microbial cells immobilized on magnetite was studied. The removal of lindane by cells of a yeast, two bacteria and an alga ranged from 29 to 57%. A bacterium, Rhodopseudomonas sphaeroides had the highest sorption factor. No effect of pH in the range pH 4.0-8.0 on sorption of lindane by this bacterium was found. Sorption of lindane by R. sphaeroides reached equilibrium after 1 min. Sorption of lindane by live cells was not significantly different from sorption by heat killed cells. Four sorption stages employing fresh cells of R. sphaeroides on magnetite removed 90% of the lindane from a water sample. Magnetite alone removed 70% of the lindane in the four stage process. During a mixing period of 1 h, cells of Alcaligenes eutrophus removed 81%, 2,4-D; 21.4% lindane and 12.6% of the 2,4,5-T added to water samples. A mixture of A. eutroplus and R. sphaeroides cells immobilized on magnetite removed 76.4%, 2,4-D and 33% lindane from water samples containing the two pesticides.
Keyword 2
4
4-D
5-T
biodegradation
chlorinated hydrocarbon
lindane
pesticides
sorption
water purification
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Created: Tue, 26 Jul 2016, 04:47:36 EST by System User