Grantee Research Project Results
Integrated Approach for the Control of Cryptosporidium parvum Oocysts and Disinfection By-Products in Drinking Water Treated with Ozone and Chloramines
EPA Grant Number: R826830Title: Integrated Approach for the Control of Cryptosporidium parvum Oocysts and Disinfection By-Products in Drinking Water Treated with Ozone and Chloramines
Investigators: Mariñas, Benito J. , Minear, Roger A.
Institution: University of Illinois Urbana-Champaign
EPA Project Officer: Hahn, Intaek
Project Period: September 1, 1998 through August 31, 2002 (Extended to March 31, 2003)
Project Amount: $367,427
RFA: Drinking Water (1998) RFA Text | Recipients Lists
Research Category: Water , Drinking Water
Description:
The overall goal of this project is the development of process design recommendations for the simultaneous control of Cryptosporidium parvum (C. parvum) oocysts and disinfection by-products (DBPs) in natural waters treated with ozone and chloramines. Because the main objective of the study is to develop an integral control strategy, the scope of work focus on a limited number of selected DBPs (bromate, formaldehyde, and cyanogen halides) associated with the ozone/chloramines disinfection strategy.Approach:
The scope of work of the project includes experimental tasks designed for the simultaneous study of C. parvum oocyst inactivation and selected DBP formation/decomposition in natural waters treated with ozone and chloramines using both batch and flow-through reactors. An integrated predictive model will be developed and calibrated with these experimental results. The model will be used to determine optimum process design, and verified in full-scale systems using fluorescent-dyed polystyrene microspheres as non-biological surrogate indicators for C. parvum oocyst inactivation.Expected Results:
It is anticipated that this research project will result in a better and more integral understanding of the kinetics of DBP formation/decomposition and C. parvum oocyst inactivation in water supply systems using ozone and chloramines as primary and secondary disinfectants. A predictive model incorporating this information will be available for the overall optimization of both C. parvum and DBP formation control.Publications and Presentations:
Publications have been submitted on this project: View all 23 publications for this projectJournal Articles:
Journal Articles have been submitted on this project: View all 8 journal articles for this projectSupplemental Keywords:
chloramination, drinking water, monochloramine, ozonation,, RFA, Scientific Discipline, Water, Environmental Chemistry, Chemistry, Analytical Chemistry, Drinking Water, alternative disinfection methods, cryptosporidium parvum oocysts, public water systems, integrated approach, disinfection byproducts (DPBs), treatment, bromate formation, brominated DPBs, cyanogen halides, microbial risk management, chloramines, DBP risk management, monochloramine, drinking water contaminants, drinking water systemProgress and Final Reports:
The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.