THE SIMULTANEOUS INFLUENCE OF PH AND TEMPERATURE ON BINDING AND MOBILIZATION OF METALS IN SAND .2. LEAD

Citation
Ml. Lucanbouche et al., THE SIMULTANEOUS INFLUENCE OF PH AND TEMPERATURE ON BINDING AND MOBILIZATION OF METALS IN SAND .2. LEAD, Fresenius environmental bulletin, 6(11-12), 1997, pp. 719-726
Citations number
19
Categorie Soggetti
Environmental Sciences
ISSN journal
10184619
Volume
6
Issue
11-12
Year of publication
1997
Pages
719 - 726
Database
ISI
SICI code
1018-4619(1997)6:11-12<719:TSIOPA>2.0.ZU;2-#
Abstract
Simultaneous influence of pH and temperature on binding and remobiliza tion of Pb in sand was experimentally studied. Adsorption was slightly fewer at pH 4 than at pH 9. Temperature (10, 20 and 30 degrees C) had no influence on that adsorption. Very small quantities of Pb were rel eased (2 to 4%) by lowering the pH from 9 to 4 indicating that Pb was strongly adsorbed to sand even at pH 4 and 10 degrees C. The strong af finity of Pb for sand was discussed in relation to physico-chemical ch aracteristics of Pb adsorption and desorption and compared to that of copper.