Title
Eutrophication management in surface waters using lanthanum modified bentonite : a review Eutrophication management in surface waters using lanthanum modified bentonite : a review
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
Oxford :Pergamon-elsevier science ltd ,
Subject
Chemistry
Biology
Source (journal)
Water research / International Association on Water Pollution Research. - Oxford, 1967, currens
Volume/pages
97(2016) , p. 162-174
ISSN
0043-1354
ISI
000376786100017
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
This paper reviews the scientific knowledge on the use of a lanthanum modified bentonite (LMB) to manage eutrophication in surface water. The LMB has been applied in around 200 environments worldwide and it has undergone extensive testing at laboratory, mesocosm, and whole lake scales. The available data underline a high efficiency for phosphorus binding. This efficiency can be limited by the presence of humic substances and competing oxyanions. Lanthanum concentrations detected during a LMB application are generally below acute toxicological threshold of different organisms, except in low alkalinity waters. To date there are no indications for long-term negative effects on LMB treated ecosystems, but issues related to La accumulation, increase of suspended solids and drastic resources depletion still need to be explored, in particular for sediment dwelling organisms. Application of LMB in saline waters need a careful risk evaluation due to potential lanthanum release.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/64151e/129154_2016_05_27.pdf
E-info
https://repository.uantwerpen.be/docman/iruaauth/b8474f/129154.pdf
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