Water and Wastewater Disinfection
Course Pack: Sodium Hypochlorite
Let’s Discuss some Sodium Hypochlorite
Course Description
This module provides advanced instruction on wastewater biological and chemical process control, focusing on ORP interpretation, nitrification/denitrification dynamics,
and instrument reliability. Learners learn maintenance and calibration practices for probes and meters, along with troubleshooting techniques that address inconsistent readings and process
upsets. The course reinforces the use of process data to support informed operational decisions and maintain treatment performance.
Learning Objectives
1) Describe sodium hypochlorite properties and primary hazards
2) Apply safe receiving, storage, and handling practices
3) Explain how age/conditions affect strength and dosing implications
4) Recognize incompatibilities and conditions that increase decomposition risk
5) Document safety checks and chemical use in operational records
Agenda
1) Chemical overview: uses in water and wastewater
2) Safety essentials: PPE, ventilation, spill response basics
3) Storage/handling: heat & light impacts, segregation, labeling
4) Operational considerations: dose impacts and residual expectations
5) Inspection checklist: tanks, lines, pumps, secondary containment
Target audience
Water and wastewater operators handling disinfectants
Level
I, II
Learning material and method
Online on-demand
Assessment
Knowledge check and quiz (80% correct and above)
Instructor
Mike Harrington