Drinking Water Disinfection - LearnH2O

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Course Content

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Disinfectant Use and Safety 5 Topics

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Lesson Content

0% Complete 0/5 Steps

Chemical Hazards

Basic Safety Equipment

Risk Management Plan

Review Questions

Disinfection 11 Topics

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Disinfection is used for

Pathogen Reduction

Forms of Disinfectants

Chlorine Dioxide (ClO)2

Forms of Chlorine

Review Questions

Elemental Chlorine 7 Topics

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Lesson Content

0% Complete 0/7 Steps

Types of Gas Chlorine Storage Containers

Storage Facilities

Major Components of Gas Feed Systems

Abnormal Operation

Review Questions

Hypochlorite 7 Topics

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Lesson Content

0% Complete 0/7 Steps

Sodium Hypochlorite – NaOCl

Calcium Hypochlorite – Ca(OCl)2

Hypochlorite Chemical Feed System Provisions

Hypochlorite Hazards

Hypochlorite Feed Equipment

Review Questions

Disinfection Chemistry 8 Topics

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Lesson Content

0% Complete 0/8 Steps

Purpose of Disinfection

Disinfection Effectiveness

Other Substances in Water

Review Questions

Disinfection Regulations 8 Topics

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Lesson Content

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Disinfection Concentration

Maximum Residual Disinfectant Level

Groundwater Supplies

Concentration Over Time (CT)

Level of Treatment

Time Calculations

Review Questions

Distribution Requirements 8 Topics

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Lesson Content

0% Complete 0/8 Steps

Cl2 Requirements for Entry Point and Distribution

Disinfectant By-Products

Trihalomethanes (THMs)

pH and Disinfection By-Product Formation

Methods to reduce THM formation

Review Questions