HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via ISI Web of Science (10) Citing Articles via Google Scholar Google Scholar Articles by Shih, Y.-h. Articles by Wu, S.-c. Search for Related Content PubMed PubMed Citation Articles by Shih, Y.-h. Articles by Wu, S.-c. GeoRef GeoRef Citation Agricola Articles by Shih, Y.-h. Articles by Wu, S.-c. Related Collections Humic Substances Organic Compounds Soil Pollution Vadose Zone Processes and Chemical Transport

Sorption Kinetics of Toluene in Humin under Two Different Levels of Relative Humidity

Graduate Institute of Environmental Engineering, National Taiwan University, No. 71, Chou Shan Road, Taipei 106, Taiwan R.O.C

View larger version (117K): [in a new window]   Fig. 1. (a) Surface and (b) cross-section of a broken edge of a humin disk observed by scanning electron microscopy (SEM).

View larger version (17K): [in a new window]   Fig. 2. Solid-state 13C nuclear magnetic resonance (NMR) spectrum of humin.

View larger version (23K): [in a new window]   Fig. 3. Experimental results (squares and circles) and model best fittings (solid lines) of toluene sorption and desorption at different temperatures: (a) sorption and desorption at 15°C for Disk A, (b) sorption and desorption at 25°C for Disk B, and (c) sorption desorption at 35°C for Disk C. A1 and A2 and B1 and B2, respectively, are the results of duplicated experiments only with different volatile organic compound (VOC) concentrations.

View larger version (22K): [in a new window]   Fig. 4. (Top graph) Plot of ln Kd versus 1/T (K-1) for toluene sorption, and (bottom graph) plot of ln Ds and ln Dd versus 1/T (K-1) for toluene sorption and desorption at temperatures ranging from 15 to 35°C.

View larger version (19K): [in a new window]   Fig. 5. Relative absorbance intensity of sorbed toluene on humin varying with time for sorption (solid symbols) and desorption (empty symbols) at 729 cm-1 by Fourier transform infrared (FTIR) under dry (diamond) and humid (triangle) conditions.