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Outbreaks of cryptosporidiosis throughout the world, especially the massive outbreak in Milwakee in 1993 drew public attention to the quality of drinking water supplies and to the efficiency of water treatment methods. Cryptosporidiosis is a severe gastrointestinal disease caused by the transmissive form of Cryptosporidium parvum protozoan and its oocysts.
Digestion of as few as 30 oocysts may be fatal to infants, elderly and immunocompromized persons. C. parvum oocysts are ubiquitous in untreated water and extremely resistant to harsh environmental conditions including standard water treatment procedures.
We have developed an integrated modeling strategy to quantify the risk of surface drinking water contamination by water borne pathogens, in particular the oocysts of C. parvum, from agricultural non-point pollution sources. This project is comprised of both a modeling and an experimental effort.
The main experimental effort focused on the measurement of C. parvum oocysts partitioning in the soil/water systems with the objective of parameterizing the transport model.
The pathogen transport model is based on the behavior of a single microorganism and inherently predicts the random variability of pathogen transport.
Bioassessment: A Tool for Managing Aquatic Life Uses for Urban Streams (Research Digest)
This WERF sponsored research addresses the utility of bioassessment for managing aquatic life uses in urban and/or urbanizing catchments. Heavily urbanized catchments...
State of Knowledge of the Use of Sorption Technologies for Nutrient Recovery from Municipal Wastewaters Nutrients
The depletion of global phosphate rock stores and the energy intensity of ammonia production provide motivation for identifying alternative sources of these essential nutrients. The recovery of...
Decentralized Stormwater Controls for Urban Retrofit and Combined Sewer Overflow Reduction
Decentralized stormwater controls provide a significant and promising alternative strategy to limit the number of overflows from combined sewer systems. This research evaluates the functional...
Measuring Water Ingestion Among Water Recreators
Ambient water quality criteria for recreational waters have been established based on epidemiologic studies of swimmers at beaches. Waters that cannot be used for full contact water recreation (...
MBR Book, 2nd Edition
A Membrane BioReactor (MBR) is the combination of a membrane process (e.g. microfiltration/ ultrafiltration) with a suspended growth bioreactor. When used with domestic wastewater, MBR processes...
Advances in Wastewater Treatment
Advances in Wastewater Treatment presents a compendium of the key topics surrounding wastewater treatment, assembled by looking at the future technologies, and provides future...
Southeast Asian Water Environment 5
This is the fifth volume in the series of books on the Southeast Asian water environment.
The most important articles presented at the Eighth, Ninth and Tenth International...
Sustainable Eco-technologies for Water and Wastewater Treatment
One of the major challenges in the world is to provide clean water and sanitation for all. With 3% fresh water reserves in the earth, there are more than 1 billion people who still lack access to...