Long-term sustainability of metal immobilization by soil amendments: Cyclonic ashes versus lime addition

被引：89

作者：

Ruttens, A. ^{[1
]}

Adriaensen, K. ^{[1
]}

Meers, E. ^{[2
]}

De Vocht, A. ^{[1
]}

Geebelen, W. ^{[1
]}

Carleer, R. ^{[1
]}

Mench, M. ^{[3
]}

Vangronsveld, J. ^{[1
]}

机构：

[1] Hasselt Univ, Ctr Environm Sci, B-3590 Diepenbeek, Belgium

[2] Univ Ghent, Lab Analyt Chem & Appl Ecochem, B-9000 Ghent, Belgium

[3] Univ Bordeaux 1, INRA, BIOGECO, UMR 1202, F-33405 Talence, France

来源：

ENVIRONMENTAL POLLUTION | 2010年 / 158卷 / 05期

关键词：

Metal immobilization; Soil amendments; Cyclonic ashes; Lime; Steel shots; Long-term sustainability; CONTAMINATED SANDY SOIL; ENVIRONMENTAL EXPOSURE; NONFERROUS METALS; CADMIUM; BIOAVAILABILITY; LEAD; ZN; REMEDIATION; PROGRESS; ZINC;

D O I：

10.1016/j.envpol.2009.12.037

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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.

引用

页码：1428 / 1434

页数：7

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