Journal ArticleDOI
Influence of organic carbon loading, sediment associated metal oxide content and sediment grain size distributions upon Cryptosporidium parvum removal during riverbank filtration operations, Sonoma County, CA
TLDR
Although the grain-surface metal oxides were found to have a high colloid-removal capacity, this study suggested that any major changes within the watershed that would result in long-term alterations in either the quantity and (or) the character of the river's DOC could alter the effectiveness of pathogen removal during RBF operations.About:
This article is published in Water Research.The article was published on 2010-02-01. It has received 27 citations till now. The article focuses on the topics: Dissolved organic carbon & Organic matter.read more
Citations
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Journal ArticleDOI
Transport and Fate of Microbial Pathogens in Agricultural Settings
Scott A. Bradford,Verónica L. Morales,Wei Zhang,Ronald W. Harvey,Aaron I. Packman,Arvind Mohanram,Claire Welty +6 more
TL;DR: In this article, a number of transport pathways, processes, factors, and mathematical models often are needed to describe pathogen fate in agricultural settings, and the level of complexity is dramatically enhanced by soil heterogeneity, as well as by temporal variability in temperature, water inputs, and pathogen sources.
Journal ArticleDOI
Colloid Adhesive Parameters for Chemically Heterogeneous Porous Media
TL;DR: The model results show that the PDFs of colloid adhesive parameters at the REA scale were sensitive to the size of the colloid and the heterogeneity, the charge and number of grid cells, and the ionic strength.
Journal ArticleDOI
Modeling colloid and microorganism transport and release with transients in solution ionic strength
TL;DR: A calibrated model provided a satisfactory description of the observed release behavior for a range of colloid types and sizes and a general theoretical foundation to develop predictions for the influence of solution chemistry on the transport, retention, and release of colloids.
Journal ArticleDOI
Inorganic Geochemistry and Redox Dynamics in Bank Filtration Settings
TL;DR: This review presents the four main geochemical processes relevant for inorganic geochemistry, with a focus on iron (Fe) and manganese (Mn), during bank filtration: reduction near the bank, oxidation near the production well, carbonate dissolution, and sorption to aquifer materials.
Journal ArticleDOI
Removal of polystyrene microplastic spheres by alum-based coagulation-flocculation-sedimentation (CFS) treatment of surface waters
TL;DR: In this paper, the removal of carboxylated polystyrene (PS) microspheres in a wide size range (3, 6, 25, 45, and 90μm) in two types of real surface waters (Grand River and Lake Erie water) that are sources for full-scale drinking water treatment plants was investigated.
References
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Journal ArticleDOI
Comparison of Conventional and Biological Filter Performance for Cryptosporidium and microsphere removal
James E. Amburgey,Appiah Amirtharajah,Marjorie T. York,B.M. Brouckaert,Neal C. Spivey,Michael J. Arrowood +5 more
TL;DR: Conventional and biological filters showed similar average postripening oocyst andmicrosphere removals, but the biological filters exhibited significantly lower concentrations of oocysts and microspheres in the initial effluent samples containing backwash‐remnant particles left in the filter at the conclusion of the backwashing procedure.
Journal ArticleDOI
Capacity development: the small system perspective
Alan D. Soelter,Ellen G. Miller +1 more
TL;DR: In this paper, a brief two-part study was undertaken to find out what midsized and smaller systems know about capacity development and what they need in order to comply with SDWA requirements.
Journal ArticleDOI
Use of Carboxylated Microspheres to Assess Transport Potential of Cryptosporidium parvum Oocysts at the Russian River Water Supply Facility, Sonoma County, California
David W. Metge,Ronald W. Harvey,Robert Anders,Donald O. Rosenberry,Donald Seymour,Jay Jasperse +5 more
TL;DR: Carboxylated microspheres were employed as surrogates to assess the transport potential of Cryptosporidium parvumoocysts during forced and natural-gradient tests conducted in July and October 2004.
ReportDOI
Surface-water hydrology of California coastal basins between San Francisco Bay and Eel River
S.E. Rantz,T.H. Thompson +1 more
TL;DR: In this article, the surface water hydrology of the coastal basins of California that lie between the north shore of San Francisco Bay and the south boundary of the Eel River basin was analyzed.
OtherDOI
Analysis of background residential dust for World Trade Center signature components using scanning electron microscopy and x-ray microanalysis
TL;DR: Meeker et al. as discussed by the authors described the analysis of six background samples of urban residential dust collected in Manhattan and Long Island by the U.S. Environmental Protection Agency (USEPA).
Related Papers (5)
Evaluation of microspheres as surrogates for Cryptosporidium parvum oocysts in filtration experiments.
Xiaojun Dai,Raymond M. Hozalski +1 more