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 Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via ISI Web of Science (8) Citing Articles via Google Scholar Google Scholar Articles by Totsche, K. U. Articles by Kögel-Knabner, I. Search for Related Content PubMed Articles by Totsche, K. U. Articles by Kögel-Knabner, I. GeoRef GeoRef Citation Agricola Articles by Totsche, K. U. Articles by Kögel-Knabner, I. Related Collections Laboratory Column Studies Colloids Soil Pollution

Release of Polycyclic Aromatic Hydrocarbons, Dissolved Organic Carbon, and Suspended Matter from Disturbed NAPL-Contaminated Gravelly Soil Material

Lehrstuhl Bodenkunde, Technische Univ. München, D-85350 Freising, Germany

View larger version (22K): [in a new window]   Fig. 1. Sketch of the soil column set-up. A: Solution storage bottle. B: Peristaltic pump. C: Soil column. G: Fraction collector. Dotted arrows indicate the flow direction.

View larger version (18K): [in a new window]   Fig. 2. Results of the chloride breakthrough for the fast column, the slow column and its repetition. Symbols indicate measurements, line the fit. Results of the two-site/two-region (TSTR) model are not included.

View larger version (22K): [in a new window]   Fig. 3. Course of pH and the electrical conductivities (EC). Slow column: solid triangles; fast column: solid circles. Flow-interrupts are indicated by the vertical lines.

View larger version (18K): [in a new window]   Fig. 4. Dissolved organic carbon (DOC). Slow column: solid triangles; fast column: solid circles. Flow-interrupts are indicated by the vertical lines.

View larger version (22K): [in a new window]   Fig. 5. Turbidity expressed as Formazine Attenuation Units (FAU) and concentrations of colloids and particles >0.7 µm. Slow column: solid triangles; fast column: solid circles. Flow-interrupts are indicated by the vertical lines.

View larger version (17K): [in a new window]   Fig. 6. Concentrations of the sums of the 16 EPA PAH in the filtrate. Slow column: solid triangles; fast column: solid circles. Flow-interrupts are indicated by the vertical lines.

View larger version (21K): [in a new window]   Fig. 7. Mean aqueous equilibrium concentrations estimated according to Raoult's law and mean measured concentrations of the single PAH in the filtrate. Slow column: solid triangles; fast column: solid circles; Naphthalene (Nap), Acenaphthylene (Acy), Acenaphthene (Ace), Fluorene (Flr), Phenanthrene (Phe), Anthracene (Ant), Fluoranthene (FlA), Pyrene (Pyr), Benz[a]anthracene (BaA), Chrysene (Chr), Benzo[b]fluoranthene (BbFlA), Benzo[k]fluoranthene (BkFlA), Benzo[a]pyrene (BaP), Indeno[1,2,3-c,d]pyrene (IcdP), Dibenz[a,h]anthracene (DahA), Benzo[g,h,i]perylene (BghiP).

View larger version (15K): [in a new window]   Fig. 8. Concentrations of the sums of the 16 EPA polycyclic aromatic hydrocarbons (PAH) in the retentate. Slow column: solid triangles; fast column: solid circles. Flow-interrupts are indicated by the vertical lines.

View larger version (23K): [in a new window]   Fig. 9. Polycyclic aromatic hydrocarbon (PAH) patterns in the soil material (sieved to 2 mm), in the filtrate and in the retentate. Slow column filtrate: solid triangles; fast column filtrate: solid circles; slow column retentate: solid diamonds; fast column retentate: solid squares; soil material: crosses. Flow-interrupts are indicated by the vertical lines.