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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Book ChapterDOI
Evaluation of subsurface microbial transport using microbial indicators, surrogates and tracers
Book ChapterDOI
Removal and Inactivation of Cryptosporidium from Water
TL;DR: This chapter will review the processes contributing to the removal and inactivation of Cryptosporidium oocysts from surface waters and wastewaters, including natural processes that occur insurface waters and engineered processes used for the production of drinking water or for the treatment of wastewater.
Journal ArticleDOI
Effects of sediment-associated extractable metals, degree of sediment grain sorting, and dissolved organic carbon upon Cryptosporidium parvum removal and transport within riverbank filtration sediments, Sonoma County, California.
David W. Metge,Ronald W. Harvey,George R. Aiken,Robert Anders,George Lincoln,Jay Jasperse,Mary C. Hill +6 more
TL;DR: This study suggests that in evaluating the efficacy of RBF operations to remove oocysts, it may be necessary to consider not only the geochemical nature and size distribution of the sediment grains, but also the degrees of sediment sorting and the concentration, reactivity, and penetration of the source water DOC.
Journal ArticleDOI
Impact of Media Aging on the Removal of Cryptosporidium in Granular Media Filters
TL;DR: In this article, a study was conducted to assess the impact of media aging on Cryptosporidium parvum transport and retention in granular filters and the results indicated that media aging significantly increased the treatment performance of sand (26%) and GAC (31%) but had no influence on the perfor- mance of anthracite.
Journal ArticleDOI
Cyanobacteria breakthrough: Effects of Limnothrix redekei contamination in an artificial bank filtration on a regional water supply.
TL;DR: The culturing techniques reported in this study can potentially be used to optimize assessment for Limnothrix redekei populations surrounding water extraction points and to minimise cyanobacterial contamination and proliferation within the water supply chain infrastructure.
References
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Journal ArticleDOI
Evaluation of specific ultraviolet absorbance as an indicator of the chemical composition and reactivity of dissolved organic carbon.
James L Weishaar,George R. Aiken,Brian A. Bergamaschi,Miranda S. Fram,Roger Fujii,Kenneth Mopper +5 more
TL;DR: Data indicate that SUVA, determined at 254 nm, is strongly correlated with percent aromaticity as determined by 13C NMR for 13 organic matter isolates obtained from a variety of aquatic environments and is shown to be a useful parameter for estimating the dissolved aromatic carbon content in aquatic systems.
Book
Manual of environmental microbiology.
TL;DR: This book discusses water Microbiology in Public Health, soil, Rhizosphere and Phyllosphere, and the role of aerobiology in these environments.
Journal ArticleDOI
Modeling colloid attachment, straining, and exclusion in saturated porous media.
TL;DR: Numerical experiments indicated that increasing the colloid excluded volume of the pore space resulted in earlier breakthrough and higher peak effluent concentrations as a result of higher pore water velocities and lower residence times, respectively.
Journal ArticleDOI
Physical factors affecting the transport and fate of colloids in saturated porous media
TL;DR: In this article, the influence of colloid size and soil grain size distribution characteristics on the transport and fate of the colloid particles in saturated porous media was explored, and the final spatial distribution of retained colloids by the porous media were found to be highly dependent on the colloids size and the soilgrain size distribution.
Journal ArticleDOI
Biological activity and environmental impact of anionic surfactants
TL;DR: The role of anionic surfactants in the environment is ambiguous: they can cause serous environmental pollution with toxic effect on living organisms; otherwise, they can promote the decomposition and/or removal of other inorganic and organic pollutants from the environment.
Related Papers (5)
Evaluation of microspheres as surrogates for Cryptosporidium parvum oocysts in filtration experiments.
Xiaojun Dai,Raymond M. Hozalski +1 more