Record Display for the EPA National Library Catalog

RECORD NUMBER: 30 OF 42

OLS Field Name OLS Field Data
Main Title Sorption Properties of Model Compounds on C18 Adsorbents.
Author Walton, H. F. ;
CORP Author Colorado Univ. at Boulder.;Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1984
Report Number EPA/600/1-84/026;
Stock Number PB85-125839
Additional Subjects Sewage treatment ; Sorption ; Organic compounds ; Chemical analysis ; Performance evaluation ; Trace elements ; Bondapak-C18 adsorbent ; Organic matter ; Water pollution detection ; Liquid chromatography ; Secondary sewage treatment ; Tertiary treatment
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB85-125839 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 46p
Abstract
The bonded silica adsorbent Bondapak-C18 was evaluated for removing organic matter from secondary sewage effluents and from solutions of pure organic compounds. The adsorbent is hydrophobic and its behavior with water samples may be erratic unless first wet with a solvent. However, water- ethanol mixtures behaved reproducibly and gave linear adsorption isotherms. Part of the effort was aimed at developing liquid-chromatographic methods of analysis for organic constituents of wastewater. For this work microparticulate adsorbents were used in combination with a Sep-Pak precolumn for rapid trace enrichment. Identification of the many chromatographic peaks was hampered by incomplete resolution. The chromatograms, however, were reproducible permitting comparisons of different effluents and tertiary treatment processes.