Water and Wastewater Disinfection
Course Pack: Disinfection (Chlorine)
Hypochlorite Disinfection Issues
Course Description
This module provides an in-depth review of how temperature, strength decay, ORP behavior, and alkalinity interactions affect hypochlorite disinfection performance. Learners learn proper strength-testing techniques, field verification methods, and trend-evaluation practices that support stable and compliant operations. Emphasis is placed on recognizing degradation patterns and applying monitoring strategies that optimize system reliability.
Learning Objectives
1) Explain why temperature is the most critical hypochlorite variable
2) Measure and interpret hypochlorite strength
3) Use ORP and alkalinity testing to improve process control
4) Identify degradation trends using graphs and data
5) Optimize disinfection reliability through monitoring
Agenda
1) Temperature effects on hypochlorite stability and storage considerations
2) Chlorine strength testing methods and result interpretation
3) Portable ORP testing procedures and field application
4) Alkalinity roles, system interactions, and operational impacts
5) Trend evaluation using operational data and basic graphing
6) Discussion of practical strategies for operational optimization
Target audience
Water and wastewater operators responsible for monitoring, troubleshooting, or optimizing hypochlorite-based disinfection systems.
Level
II
Learning material and method
Online on-demand
Assessment
Knowledge check and quiz (80% correct and above)
Instructor
Mike Harrington