Water and Wastewater Disinfection
Course Pack: Disinfection (Chlorine)
A Look at Typical Disinfection Systems
Course Description
This module provides an overview of typical disinfection systems used in drinking-water treatment, with a focus on chlorine-based technologies. Learners will explore gas, liquid, and solid chlorine feed systems, as well as on-site generation methods used for safe and effective water disinfection. The course covers key operational practices such as hypochlorite strength verification, safe chemical storage, and accurate dosing control. Emphasis is placed on safety, system selection, and compliance to ensure reliable performance of typical disinfection systems in real-world water treatment operations.
Learning Objectives
1) Differentiate gas, liquid, and solid disinfection systems
2) Verify strength of delivered hypochlorite products
3) Identify onsite generation considerations
4) Recognize safety and storage hazards
5) Apply proper system selection for facility needs
Agenda
1) Overview of gas, liquid, and solid chlorine systems and their operational characteristics
2) Fundamentals of on‑site chlorine generation and applicable treatment roles
3) Methods for verifying chlorine strength to support accurate dosing and compliance
4) Safety requirements for chlorine handling, storage, and chemical management
5) Considerations for selecting appropriate disinfection systems, supported by operational
examples
Target audience
Operators responsible for operating, selecting, or evaluating disinfection systems.
Level
II, III
Learning material and method
Online on-demand
Assessment
Knowledge check and quiz (80% correct and above)
Instructor
Mike Harrington