The effect of surface characteristics on the transport of multiple Escherichia coli isolates in large scale columns of quartz sand

Lutterodt, George; Basnet, Mohan; Foppen, Jan Willem; Uhlenbrook, Stefan

doi:10.1016/j.watres.2008.11.001

Cited by 51 publications

(84 citation statements)

References 66 publications

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“…Lutterodt et al (2009a), Bolster et al (2009), andWalker et al (2004) arrived at similar conclusions. However, these authors used a limited number of E. coli strains, while our sample size was much larger.…”

Section: Discussionsupporting

confidence: 60%

“…In such case, the single collector contact efficiency might be under estimated, giving rise to attachment efficiencies in excess of unity. Others (Shellenberger and Logan, 2002;Morrow et al, 2005;Paramonova et al, 2006;Yang et al, 2006;Lutterodt et al, 2009a) have also reported on attachment efficiencies above 1. For the remaining three strains (2041, 1514, and 2049), it was difficult to find an explanation for their very high attachment efficiencies of 1.42, 1.61 and 2.10, other than to assume that the bacteria size that was used in calculating the single collector contact efficiency had been wrong, most likely due to the presence of surface structures sticking out of the surface of these strains, thereby actually acting as a bigger colloidal particle than used in the TE correlation equation.…”

Section: Discussionmentioning

confidence: 90%

“…We think that the differences in i α -values can be attributed to heterogeneity in cell population within the strains, due to variability in surface properties (Albinger et al,1994;Baygents et al, 1998.;Simoni et al, 1998;Li et al, 2004;Tufenkji and Elimelech, 2005a,b;Tong and Johnson, 2007;Foppen et al, 2007a,b;Lutterodt et al, 2009a). From Yang et al (2004 and Yang (2005), we know that the strains we used indeed have (surface) characteristics variations related to variations in zeta-potential, motility, hydrophobicity, and expression of an outer-membrane protein produced by the so-called antigen 43.…”

Section: Sticking Efficiency Variations Within and Between E Coli Stmentioning

confidence: 98%

“…In the absence of straining, we assumed that retention was predominantly characterized by attachment of E. coli cells to the quartz grain surfaces in the column. Bacteria attachment to the sand was quantified by computing the attachment efficiency ( α ) as (Lutterodt et al, 2009a;Kretzschmar et al, 1997;Abudalo et al, 2005) …”

Section: Column Experimentsmentioning

confidence: 99%

“…These authors conclude that a complex combination of cell surface charge heterogeneity and LPS composition is in control of the adhesive characteristics of E. coli K12. Lutterodt et al (2009a) studied the transport of 6 E. coli strains in 5 m columns of saturated quartz sand. These authors conclude that Ag43 and motility play an important role in E. coli attachment to quartz grain surfaces.…”

Section: Introductionmentioning

confidence: 99%

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Transport of multiple Escherichia coli strains in saturated porous media

Lutterodt¹

2012

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All rights reserved. No part of this publication or the information contained herein may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, by photocopying, recording or otherwise, without written prior permission from the publishers. Although all care is taken to ensure the integrity and quality of this publication and the information herein, no responsibility is assumed by the publishers nor the author for any damage to the property or persons as a result of operation or use of this publication and/or the information contained hereinPublished by: CRC Press/Balkema PO Box 447, 2300 AK Leiden, the Netherlands e-mail: Pub.NL@taylorandfrancis.com www.crcpress.com -www.taylorandfrancis.co.uk -www.ba.balkema.nl ISBN 978-0-415-62104-5 (Taylor & Francis Group) AcknowledgementsGod makes things beautiful in his own time, this work got to this stage through mental, physical and emotional strength provided by God Almighty. I will like to express my sincere gratitude to all who in various ways contributed to the making of this thesis, and would like to state that many people directly or indirectly contributed to this thesis and those whose names are not mentioned here are the very good friends who would not need their names to be mentioned here to show appreciation to their contribution towards this thesis.I am most grateful to my promoter Professor Stefan Uhlenbrook and supervisor Dr. JanWillem Foppen for their help and guidance. They made this thesis a reality. My profound appreciation to Dr. Wilfred Rölling of the Vrije University, Amsterdam for offering me the opportunity to do part of this work in his laboratory. Special acknowledgements goes to the entire staff of the UNESCO-IHE laboratory, they tirelessly worked behind the scenes to ensure successful running of experiments. I will also like to offer sincere appreciation to Eric Oduroh-Boahene of Geogroup Limited in Kumasi, Ghana, and Michael Nii Armah Aryeetey of the Ghana National Petroluem Corporation for continuously reminding me of the importance of this work and encouraging me. Groundwater contamination by faecal matterAccording to the WHO, an estimated one billion people lack access to an improved water supply and two million deaths per year are attributable to unsafe drinking water, sanitation and hygiene. In addition, many countries still report cholera to the WHO (WHO, 2004). Groundwater may be an important source of water for safe drinking and industrial water supplies, however, many water borne disease outbreaks are known to have been caused by the consumption of groundwater contaminated by pathogenic microorganisms (Goss et al., 1998;Macler and Merkle, 2000;Bhattacharjee et al., 2002;Close et al., 2006;Powell et al., 2003). Pathogenic microorganisms find their way into the sub-surface through the spreading of sewerage sludge on fields, leakage from waste disposal sites and landfills (Taylor et al., 2004), infiltration from cesspits, septic tank infiltration beds, and pit latrines (Foppen ...

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Section: Discussionsupporting

confidence: 60%