Please use this identifier to cite or link to this item: https://doi.org/10.1061/(ASCE)0733-9372(2007)133:10(955)
Title: Uptake of halogenated phenols by aquatic plants
Authors: Tront, J.M.
Reinhold, D.M.
Bragg, A.W.
Saunders, F.M. 
Keywords: Aquatic habitats
Contaminants
Organic matter
Vegetation
Water pollution
Wetlands
Issue Date: 2007
Source: Tront, J.M., Reinhold, D.M., Bragg, A.W., Saunders, F.M. (2007). Uptake of halogenated phenols by aquatic plants. Journal of Environmental Engineering 133 (10) : 955-961. ScholarBank@NUS Repository. https://doi.org/10.1061/(ASCE)0733-9372(2007)133:10(955)
Abstract: Reclamation of biologically treated wastewaters is frequently enhanced with the use of constructed wetlands and wastewater lagoons that remove nutrients and persistent organic pollutants. To better design systems utilizing uptake of persistent organic contaminants by aquatic plants, a quantitative description of partitioning of contaminants into aquatic plants is required. The uptake of halogenated phenols by Lemna minor was investigated to examine uptake of a family of closely related organic contaminants by a common aquatic plant. Batch experiments with L. minor (52 h) and 14 halogenated phenols were operated at nontoxic concentration levels with >90% of aqueous-phase contaminant in the protonated form. Pseudo-first-order rate coefficients determined using nonlinear regression of time series concentration data described contaminant uptake. Changing halogen substituent or number of halogen substituents did not affect uptake rate, however halogen positioning did affect contaminant uptake rate. Uptake rate constants were not correlated with log Kow, however, uptake rate was correlated with parameters related to rate of internal plant enzymatic transformation. Therefore, contaminant uptake rate appeared to proceed at a rate dependent on internal enzymatic transformation. © 2007 ASCE.
Source Title: Journal of Environmental Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/67706
ISSN: 07339372
DOI: 10.1061/(ASCE)0733-9372(2007)133:10(955)
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

13
checked on Dec 5, 2017

WEB OF SCIENCETM
Citations

12
checked on Dec 5, 2017

Page view(s)

23
checked on Dec 3, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.