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Title: | Long-term sustainability of metal immobilization by soil amendments: Cyclonic ashes versus lime addition | Authors: | RUTTENS, Ann ADRIAENSEN, Kristin MEERS, Erik DE VOCHT, Alain GEEBELEN, Wouter CARLEER, Robert Mench, M VANGRONSVELD, Jaco |
Issue Date: | 2010 | Publisher: | ELSEVIER SCI LTD | Source: | ENVIRONMENTAL POLLUTION, 158 (5). p. 1428-1434 | Abstract: | A soil column leaching experiment was used to gain insight into the long-term metal immobilization capacity of cyclonic ashes (CAH) compared to lime (LIME). Twenty six years of rainfall were simulated. Initially, all amended soils were brought to an equal soil pH. This was done to obtain optimal conditions for the detection of metal immobilization mechanisms different from just a pH effect. During the simulation period, soil pH in all treatments decreased in parallel. However, the evolution of metal mobility and phytoavailability showed a clearly distinct pattern. The strong reduction in metal immobilizing efficiency observed in the lime treatment at the end of the simulation period was much less pronounced, or even absent, in the CAH treatments. Moreover, metal accumulation in plants grown on the CAH amended soil was significantly lower compared to the untreated and the lime treated soil. CAH + SS treatment delivered the strongest reductions in metal mobility and bioavailability. (C) 2009 Elsevier Ltd. All rights reserved. | Notes: | [Ruttens, A.; Adriaensen, K.; De Vocht, A.; Geebelen, W.; Carleer, R.; Vangronsveld, J.] Hasselt Univ, Ctr Environm Sci, B-3590 Diepenbeek, Belgium. [Meers, E.] Univ Ghent, Lab Analyt Chem & Appl Ecochem, B-9000 Ghent, Belgium. [Mench, M.] Univ Bordeaux 1, INRA, BIOGECO, UMR 1202, F-33405 Talence, France. jaco.vangronsveld@uhasselt.be | Keywords: | Metal immobilization; Soil amendments; Cyclonic ashes; Lime; Steel shots; Long-term sustainability;Metal immobilization; Soil amendments; Cyclonic ashes; Lime; Steel shots; Long-term sustainability | Document URI: | http://hdl.handle.net/1942/11057 | ISSN: | 0269-7491 | e-ISSN: | 1873-6424 | DOI: | 10.1016/j.envpol.2009.12.037 | ISI #: | 000277726500042 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2011 |
Appears in Collections: | Research publications |
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