Water and Wastewater Disinfection
Course Pack: Specialized Chemistry & Field Monitoring
Let’s Dig Deeper!
Course Description
This deep dive module explores the chemistry, applications, and operational benefits of chlorine dioxide (ClOâ‚‚) in modern water treatment systems. Learners will gain a deeper understanding of how chlorine dioxide supports effective disinfection, taste and odor control, biofilm reduction, and overall water quality improvement across a variety of treatment applications.
The course provides a deep dive into chlorine dioxide reaction pathways, dosing strategies, safety requirements, and handling procedures that influence treatment performance and system reliability. Participants will examine real-world operational considerations, compare chlorine dioxide with chlorine and chloramines, and evaluate the advantages and limitations of each disinfectant. Through practical examples and advanced treatment insights, operators will develop the knowledge needed to optimize chlorine dioxide use and improve water treatment outcomes.
Learning Objectives
1) Explain ClO2 chemistry and disinfection mechanism
2) Identify taste/odor treatment advantages
3) Recognize biofilm control benefits
4) Compare ClO2 to other oxidants
5) Apply operational considerations for dosing
Agenda
1) Overview of chlorine dioxide (ClOâ‚‚) chemistry and key reaction pathways
2) Mechanisms for taste and odor improvement in treated water
3) Biofilm reduction processes and impacts on distribution system performance
4) Operational safety practices, storage requirements, and handling considerations
5) Comparative performance of ClOâ‚‚ versus chlorine and chloramines, supported by system
examples
Target audience
Operators responsible for chemical dosing, distribution-system water quality, or evaluating oxidant performance.
Level
II, III
Learning material and method
Online on-demand
Assessment
Knowledge check and quiz (80% correct and above)
Instructor
Mike Harrington