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ADSORPTION, DESORPTION AND SOLUBILITY RELATIONSHIPS OF LEAD AND CADMIUM IN SOME ALKALINE SOILS
Author(s) -
SINGH BIJAY,
SEKHON G. S.
Publication year - 1977
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1977.tb02235.x
Subject(s) - desorption , cadmium , adsorption , solubility , chemistry , soil water , alkali soil , inorganic chemistry , organic matter , langmuir , environmental chemistry , geology , organic chemistry , soil science
Summary In some alkaline soils of Punjab (India) the adsorption, desorption and solubility relationships of lead and cadmium were investigated and the results analysed by the Langmuir equation. Both the metals are retained in soils by adsorption on mineral interfaces and interaction with organic matter and calcium carbonate. At high concentrations, these probably precipitate as hydroxides. Sequential desorption of Pb and Cd with 1 MKCI and 0.05 MCu(CH 3 COO) 2 provided a measure of their exchangeable and chelated form.