Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2104
Title: An inter-laboratory study to test the ability of amendments to reduce the availability of Cd, Pb, and Zn in situ
Authors: Brown, S
Christensen, B
Lombi, E
McLaughlin, M
McGrath, S
COLPAERT, Jan 
VANGRONSVELD, Jaco 
Issue Date: 2005
Publisher: ELSEVIER SCI LTD
Source: ENVIRONMENTAL POLLUTION, 138(1). p. 34-45
Abstract: An international inter-laboratory research program investigated the effectiveness of in situ remediation of soils contaminated by cadmium, lead and zinc, measuring changes in soil and soil solution chemistry, plants and soil microbiota. A common soil, from mine wastes in Jasper County MO, was used. The soil was pH 5.9, had low organic matter (1.2 g kg(-1) C) and total Cd, Ph, and Zn concentrations of 92, 5022, and 18532 mg kg(-1), respectively. Amendments included lime, phosphorus (P), red mud (RM), cyclonic ashes (CA), biosolids (BIO), and water treatment residuals (WTR). Both soil solution and NH4NO3 extractable metals were decreased by all treatments. Phytotoxicity of metals was reduced, with plants grown in P treatments having the highest yields and lowest metal concentration (0.5, 7.2 and 406 mg kg(-1) Cd, Pb, and Zn). Response of soil micro-organisms was similar to plant responses. Phosphorus addition reduced the physiologically based extraction test Pb from 84% of total Pb extracted in the untreated soil to 34.1%. (c) 2005 Elsevier Ltd. All rights reserved.
Notes: Univ Washington, Seattle, WA 98195 USA. CSIRO Land & Water PMB, Adelaide, SA, Australia. Rothamsted Res, Harpenden AL5 2JQ, Herts, England. Univ Limburg, BE-3590 Diepenbeek, Belgium.Brown, S, Univ Washington, Box 352100, Seattle, WA 98195 USA.slb@u.washington.edu enzo.lombi@csiro.au mike.mclaughlin@csiro.au steve.mcgrath@bbsrc.ac.uk jvangron@luc.ac.be
Keywords: in situ remediation; Pb mine wastes; phosphorus; bioavailability
Document URI: http://hdl.handle.net/1942/2104
ISSN: 0269-7491
e-ISSN: 1873-6424
DOI: 10.1016/j.envpol.2005.02.020
ISI #: 000231075200005
Category: A1
Type: Journal Contribution
Validations: ecoom 2006
Appears in Collections:Research publications

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