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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2986

Title: Immobilization of trace metals and arsenic by different soil additives: Evaluation by means of chemical extractions
Authors: Boisson, J
Mench, M
VANGRONSVELD, Jaco
RUTTENS, Ann
Kopponen, P
De Koe, T
Issue Date: 1999
Publisher: MARCEL DEKKER INC
Citation: COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS, 30(3-4). p. 365-387
Abstract: Soils were amended with metal and arsenic (As) immobilizing soil additives [steel shots (SS 1% w/w), beringite (B 5% w/w), combination steel shots+beringite(SSB 1% SS + 5% B), hydroxyapatite (HA 0.5, 1, and 5% w/ w)]. The effectiveness of the additives in reducing metal and As mobility was assessed by means of chemical extractions with 1M calcium nitrate [Ca(NO3)(2)] in the case of metals and distilled water in the case of As. Among the additives tested, B, SSB, and 5% HA were most effective in reducing the mobility of cadmium (Cd), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn). Moreover, the effect of these additives was consistent in the different soils and their use might, therefore, be more or less universal. The lowest amount of As was extracted in soils amended with B, SS, and SSB. The effect of B was, however, soil dependent. The addition of HA led to higher As mobility due to the phosphate-arsenate competition for the sorption complex of the solid soil phase. Therefore, the use of I-IA at combined metal-as polluted sites has to be taken with care. Based on this study, it can be concluded that the addition of SSB seems the most promising treatment for the remediation of mixed metal-as polluted sites.
Notes: INRA, Bordeaux Aquitaine Res Ctr, Agron Unit, F-33883 Villenave Dornon, France. Limburgs Univ Ctr, Dept SBG, B-3590 Diepenbeek, Belgium. Univ Kuopio, Dept Ecol & Environm Sci, FIN-70211 Kuopio, Finland. Univ Tras os Montes & Alto Douro, P-5001 Villa Real, Portugal.Boisson, J, INRA, Bordeaux Aquitaine Res Ctr, Agron Unit, BP 81, F-33883 Villenave Dornon, France.
URI: http://hdl.handle.net/1942/2986
ISI #: 000079138700007
ISSN: 0010-3624
Type: Journal Contribution
Validation: ecoom, 2000
Appears in Collections: Research publications

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