A method for determination of cadmium species in solid waste leachates

Thomas H. Christensen; Xu Ze Lun

doi:10.1016/0043-1354(89)90064-X

A method for determination of cadmium species in solid waste leachates

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

A procedure has been developed for determination of cadmium (Cd) species in solid waste leachates employing a cation exchange resin (Chelex 100) in a batch-column-batch sequence. The procedure allows for determination of free divalent Cd (Cd2+), labile Cd complexes, slowly labile Cd complexes and stable Cd complexes. The effects of equilibration time, pH, calcium activity and ratio of sample volume to amount of resin have been examined. The method has been tested on standardized chloride and EDTA solutions containing Cd and on two actual leachates. The Cd species determined in the chloride solutions were in accordance with theoretical calculations of Cd chloride complexes, and Cd in the EDTA solution was identified as stable Cd complexes. The two polluted samples included in the test showed only a small percentage of free divalent Cd and a high degree of labile complexes.

Original language	English
Journal	Water Research
Volume	23
Issue number	1
Pages (from-to)	73-80
ISSN	0043-1354
DOIs	https://doi.org/10.1016/0043-1354(89)90064-X
Publication status	Published - 1989

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title = "A method for determination of cadmium species in solid waste leachates",

abstract = "A procedure has been developed for determination of cadmium (Cd) species in solid waste leachates employing a cation exchange resin (Chelex 100) in a batch-column-batch sequence. The procedure allows for determination of free divalent Cd (Cd2+), labile Cd complexes, slowly labile Cd complexes and stable Cd complexes. The effects of equilibration time, pH, calcium activity and ratio of sample volume to amount of resin have been examined. The method has been tested on standardized chloride and EDTA solutions containing Cd and on two actual leachates. The Cd species determined in the chloride solutions were in accordance with theoretical calculations of Cd chloride complexes, and Cd in the EDTA solution was identified as stable Cd complexes. The two polluted samples included in the test showed only a small percentage of free divalent Cd and a high degree of labile complexes.",

author = "Christensen, {Thomas H.} and {Xu Ze Lun}",

year = "1989",

doi = "10.1016/0043-1354(89)90064-X",

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T1 - A method for determination of cadmium species in solid waste leachates

AU - Christensen, Thomas H.

AU - Xu Ze Lun,

PY - 1989

Y1 - 1989

N2 - A procedure has been developed for determination of cadmium (Cd) species in solid waste leachates employing a cation exchange resin (Chelex 100) in a batch-column-batch sequence. The procedure allows for determination of free divalent Cd (Cd2+), labile Cd complexes, slowly labile Cd complexes and stable Cd complexes. The effects of equilibration time, pH, calcium activity and ratio of sample volume to amount of resin have been examined. The method has been tested on standardized chloride and EDTA solutions containing Cd and on two actual leachates. The Cd species determined in the chloride solutions were in accordance with theoretical calculations of Cd chloride complexes, and Cd in the EDTA solution was identified as stable Cd complexes. The two polluted samples included in the test showed only a small percentage of free divalent Cd and a high degree of labile complexes.

AB - A procedure has been developed for determination of cadmium (Cd) species in solid waste leachates employing a cation exchange resin (Chelex 100) in a batch-column-batch sequence. The procedure allows for determination of free divalent Cd (Cd2+), labile Cd complexes, slowly labile Cd complexes and stable Cd complexes. The effects of equilibration time, pH, calcium activity and ratio of sample volume to amount of resin have been examined. The method has been tested on standardized chloride and EDTA solutions containing Cd and on two actual leachates. The Cd species determined in the chloride solutions were in accordance with theoretical calculations of Cd chloride complexes, and Cd in the EDTA solution was identified as stable Cd complexes. The two polluted samples included in the test showed only a small percentage of free divalent Cd and a high degree of labile complexes.

U2 - 10.1016/0043-1354(89)90064-X

DO - 10.1016/0043-1354(89)90064-X

M3 - Journal article

SN - 0043-1354

VL - 23

SP - 73

EP - 80

JO - Water Research

JF - Water Research

IS - 1

ER -

A method for determination of cadmium species in solid waste leachates

Abstract

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