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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.
Sensing and Control Systems: A Review of Municipal and Industrial Experiences
The objective of this research was to assess and document state-of-the-art of wastewater treatment plant sensing and control systems to discover successful practices that can be...
Sensor Technology for Water Quality Monitoring: Fiber Optic Sensor
Two methods for the detection of important human pathogens, Cryptosporidium parvum and Helicobacter pylori, were investigated: a fiber optic biosensor, and real time PCR. The mechanism for...
Trace Organic Compounds and Implications for Wastewater Treatment: Technical Brief
This Technical Brief has been prepared in response to concerns over the presence of trace organic compounds (TOrC) in wastewater, water supplies, and the receiving environment (Associated Press,...
An Evaluation of the Functions and Effectiveness of Urban Riparian Forest Buffers
This project was undertaken to evaluate the effectiveness of urban riparian forest buffers for a number of potential functions. States and local jurisdictions are increasingly requiring riparian...
Management Practice for Wastewater Pipelines: Synthesis Report
This report presents state-of-the-art literature and current practice review of management practices for wastewater pipelines. These practices focus on the pipe condition evaluation and prediction...
Developing Better Indicators for Pathogen Presence in Sewage Sludge
Today, more than eight million tons of biosolids are generated annually for land application nationwide. These biosolids contain beneficial plant nutrients, soil conditioners, and may contain...
Principles of Membrane Bioreactors for Wastewater Treatment
Principles of Membrane Bioreactors for Wastewater Treatmentﾠdescribes the state-of-the-art of MBR technology, principles of MBR and design and operation of plants.
Membrane bioreactor (MBR...
Water and Environmental Challenges in a Changing World
Today, multi-disciplinarity is the key to tackle challenges for the sustainable management of water resources, especially considering the increasing complexity in the water world. It is thus...