Sorption equilibria for trichloroethene on algae

Barth F. Smets, Bruce Rittmann

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The sorption of chlorinated solvents by algae can remove the solvents from natural waters and wastewaters treated in stabilization lagoons and other phototrophically active treatment processes. The equilibrium sorption of 14C-labeled trichloroethene (TCE) to three species of algae-Chlorella vulgaris, Scenedesmus quadricauda and Selenastrum capricornutum-was studied in batch reactors in which no biotransformations occurred. The sorption density was nonlinear with respect to equilibrium TCE concentration. The Freundlich isotherm, Q = KCn, successfully described the sorption equilibria, and n was greater than 1 for all three species. Thus, the apparent bioconcentration factor (BCF) increased with increasing TCE concentrations. Empirical correlations that predict the BCF as a function of the compound's octanol-water partition coefficient gave BCF values about one order of magnitude lower than shown by these experiments with algae. The content and distribution of lipids within the algae appear to cause substantially greater sorption by algae than by other forms of organic solids.

Original languageEnglish (US)
Pages (from-to)355-360
Number of pages6
JournalWater Research
Volume24
Issue number3
DOIs
StatePublished - 1990
Externally publishedYes

Fingerprint

Trichloroethylene
Algae
trichloroethylene
Sorption
sorption
alga
Batch reactors
biotransformation
partition coefficient
Lipids
Isotherms
Water
isotherm
Wastewater
Stabilization
lipid
wastewater
water
bioconcentration factor
experiment

Keywords

  • algae
  • bioconcentration
  • isotherm
  • partitioning
  • sorption
  • trichloroethene

ASJC Scopus subject areas

  • Earth-Surface Processes

Cite this

Sorption equilibria for trichloroethene on algae. / Smets, Barth F.; Rittmann, Bruce.

In: Water Research, Vol. 24, No. 3, 1990, p. 355-360.

Research output: Contribution to journalArticle

Smets, Barth F. ; Rittmann, Bruce. / Sorption equilibria for trichloroethene on algae. In: Water Research. 1990 ; Vol. 24, No. 3. pp. 355-360.
@article{c79b8cdd32c24be0b47fd1a1350e17a1,
title = "Sorption equilibria for trichloroethene on algae",
abstract = "The sorption of chlorinated solvents by algae can remove the solvents from natural waters and wastewaters treated in stabilization lagoons and other phototrophically active treatment processes. The equilibrium sorption of 14C-labeled trichloroethene (TCE) to three species of algae-Chlorella vulgaris, Scenedesmus quadricauda and Selenastrum capricornutum-was studied in batch reactors in which no biotransformations occurred. The sorption density was nonlinear with respect to equilibrium TCE concentration. The Freundlich isotherm, Q = KCn, successfully described the sorption equilibria, and n was greater than 1 for all three species. Thus, the apparent bioconcentration factor (BCF) increased with increasing TCE concentrations. Empirical correlations that predict the BCF as a function of the compound's octanol-water partition coefficient gave BCF values about one order of magnitude lower than shown by these experiments with algae. The content and distribution of lipids within the algae appear to cause substantially greater sorption by algae than by other forms of organic solids.",
keywords = "algae, bioconcentration, isotherm, partitioning, sorption, trichloroethene",
author = "Smets, {Barth F.} and Bruce Rittmann",
year = "1990",
doi = "10.1016/0043-1354(90)90013-V",
language = "English (US)",
volume = "24",
pages = "355--360",
journal = "Water Research",
issn = "0043-1354",
publisher = "Elsevier Limited",
number = "3",

}

TY - JOUR

T1 - Sorption equilibria for trichloroethene on algae

AU - Smets, Barth F.

AU - Rittmann, Bruce

PY - 1990

Y1 - 1990

N2 - The sorption of chlorinated solvents by algae can remove the solvents from natural waters and wastewaters treated in stabilization lagoons and other phototrophically active treatment processes. The equilibrium sorption of 14C-labeled trichloroethene (TCE) to three species of algae-Chlorella vulgaris, Scenedesmus quadricauda and Selenastrum capricornutum-was studied in batch reactors in which no biotransformations occurred. The sorption density was nonlinear with respect to equilibrium TCE concentration. The Freundlich isotherm, Q = KCn, successfully described the sorption equilibria, and n was greater than 1 for all three species. Thus, the apparent bioconcentration factor (BCF) increased with increasing TCE concentrations. Empirical correlations that predict the BCF as a function of the compound's octanol-water partition coefficient gave BCF values about one order of magnitude lower than shown by these experiments with algae. The content and distribution of lipids within the algae appear to cause substantially greater sorption by algae than by other forms of organic solids.

AB - The sorption of chlorinated solvents by algae can remove the solvents from natural waters and wastewaters treated in stabilization lagoons and other phototrophically active treatment processes. The equilibrium sorption of 14C-labeled trichloroethene (TCE) to three species of algae-Chlorella vulgaris, Scenedesmus quadricauda and Selenastrum capricornutum-was studied in batch reactors in which no biotransformations occurred. The sorption density was nonlinear with respect to equilibrium TCE concentration. The Freundlich isotherm, Q = KCn, successfully described the sorption equilibria, and n was greater than 1 for all three species. Thus, the apparent bioconcentration factor (BCF) increased with increasing TCE concentrations. Empirical correlations that predict the BCF as a function of the compound's octanol-water partition coefficient gave BCF values about one order of magnitude lower than shown by these experiments with algae. The content and distribution of lipids within the algae appear to cause substantially greater sorption by algae than by other forms of organic solids.

KW - algae

KW - bioconcentration

KW - isotherm

KW - partitioning

KW - sorption

KW - trichloroethene

UR - http://www.scopus.com/inward/record.url?scp=0025405468&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025405468&partnerID=8YFLogxK

U2 - 10.1016/0043-1354(90)90013-V

DO - 10.1016/0043-1354(90)90013-V

M3 - Article

VL - 24

SP - 355

EP - 360

JO - Water Research

JF - Water Research

SN - 0043-1354

IS - 3

ER -