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Zinc and Copper Sorption and Interaction in Soils
Author(s) -
Kurdi Fuad,
Doner H. E.
Publication year - 1983
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1983.03615995004700050006x
Subject(s) - sorption , freundlich equation , zinc , chemistry , copper , soil water , langmuir , cation exchange capacity , langmuir equation , ion exchange , adsorption , environmental chemistry , inorganic chemistry , metal , ion , soil science , geology , organic chemistry
Zinc or Cu ion sorption by different soil types conformed to a Freundlich equation but not to a Langmuir equation. Sorption differences among the soils were more related to equilibrium pH than to cation exchange capacity (CEC). Zinc or Cu sorption resulted in release of H and Mn. The release increased with increasing metal ion sorption and was higher with Cu than with Zn. Sorbed Cu was not significantly affected by Zn addition up to 250 µg/mL, though the presence of Cu even at a concentration of 15 µg/mL completely prevented Zn sorption in one soil low in CEC.