Comparing the influence of two different natural organic matter types on colloid deposition in saturated porous medium

Autor(en)

X. Yang, S. Deng, F. Chen, R. Flynn, F. Von Der Kammer, T. Hofmann

Abstrakt

Humic acid and protein are two major organic matter types encountered in natural and polluted environment, respectively. This study employed Triple Pulse Experiments (TPEs) to investigate and compare the influence of Suwannee River Humic Acid (SRHA) (model humic acid) and Bovine Serum Albumin (BSA) (model protein) on colloid deposition in a column packed with saturated iron oxide-coated quartz sand. Study results suggest that adsorbed SRHA may inhibit colloid deposition by occupying colloid sites on the porous medium. Conversely, BSA may promote colloid deposition by a 'filter ripening' mechanism. This study provides insight to understand the complex behavior of colloids in organic matter-presented aquifers and sand filters.

Organisation(en)

Externe Organisation(en)

Queen's University Belfast, Sichuan Agricultural University

Seiten

1324-1329

Anzahl der Seiten

6

DOI

https://doi.org/10.4028/www.scientific.net/AMR.455-456.1324

Publikationsdatum

01-2012

ÖFOS 2012

104002 Analytische Chemie, 104023 Umweltchemie, 105904 Umweltforschung

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a49ff714-d9a4-46a7-9188-829ad4a29629