| Literature DB >> 26706125 |
Diego Copetti1, Karin Finsterle2, Laura Marziali3, Fabrizio Stefani3, Gianni Tartari3, Grant Douglas4, Kasper Reitzel5, Bryan M Spears6, Ian J Winfield7, Giuseppe Crosa8, Patrick D'Haese9, Said Yasseri2, Miquel Lürling10.
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.Entities:
Keywords: Ecological recovery; Geo-engineering; Lanthanum modified bentonite; Phosphorus; Sediments; Toxicity
Mesh：
Substances：
Year: 2015 PMID： 26706125 DOI： 10.1016/j.watres.2015.11.056
Source DB: PubMed Journal: Water Res ISSN： 0043-1354 Impact factor: 11.236