Ion exchange properties of sewage treatment plant sludges

Authors
Sardachti, A Rumeau, M
Citation
A. Sardachti et M. Rumeau, Ion exchange properties of sewage treatment plant sludges, ANALUSIS, 27(5), 1999, pp. 432-435
Citations number
13
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ANALUSIS
ISSN journal
03654877 → ACNP
Volume
27
Issue
5
Year of publication
1999
Pages
432 - 435
Database
ISI
SICI code
0365-4877(199906)27:5<432:IEPOST>2.0.ZU;2-7
Abstract
Digested sludges from sewage treatment plants behave as ion exchangers of t he weak acid type. The apparent pK values of the carboxylic and phenol func tions, determined by titration, were respectively 6.03 +/- 0.12 and 8.76 +/ - 0.25. These sludges also fixed metal cations and in particular calcium an d barium ions. The phenol functions gave the most stable complexes.