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Corrosion Control Theory and Treatment Options

Online: EL285 self-paced eLearning course

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Course Length: 2 Hours / 0.2 CEUs*

Demystifying corrosion control - a guide to the basics of internal corrosion control. This is the first course in an AWWA's series on Corrosion Control Theory & Treatment.

Objectives

  • Name materials which are sources of lead or copper release
  • Explain electrochemical processes that are the source of corrosion
  • Interpret Eh/pH (Pourbaix) and solubility diagrams
  • Recall physical and water quality factors influencing metal release
  • Apply corrosion principles to recognize how metal is released from materials commonly used in distribution systems and premise plumbing
  • Identify Corrosion Control Treatment (CCT) options which minimize corrosivity of treated water toward lead, copper, iron, galvanized iron, brass, and leaded solder
  • Explain correct usage of corrosion indices
  • Outline major aspects of a corrosion control program

Description

Meeting the provision of the Revised Lead and Copper Rule (LCRR) is challenging. Producing water with low corrosivity is an important tool for meeting the water quality provisions of the LCRR. This course sets the stage for performing Corrosion Control Evaluations (CCEs) by explaining key features of corrosion control theory and applying this knowledge to the selection of CCT.

The course covers the corrosion behavior of lead, copper, iron, galvanized iron, brass, and leaded solder. This course also describes the two common CCT methods, pH/alkalinity control and corrosion control chemical addition, and how these methods can be used to minimize the release of lead and copper from materials commonly used in distribution systems and premise plumbing.

This course includes the following modules:

Module 1: Basic Concepts for Understanding Corrosion in Drinking Water Systems.

Module 2: Corrosion of Metals Commonly Present in Water Systems.

Module 3: Predicting the Risk for Corrosion and Metal Release.

Module 4: Corrosion Control Treatment Methods.

Prerequisite/Background: Please note that the course Corrosion Control Theory and Treatment Options (EL285) assumes a basic knowledge of water chemistry. If needed, we encourage you to pair EL285 with AWWA’s EL228 – Basic Math & Chemistry eLearning course for a water chemistry refresher.

This course, the first in the AWWA-ASDWA Corrosion Control Certificate Program, will help the learner explore aspects of corrosion control theory that can be used to select and test Corrosion Control Treatment (CCT) that best minimizes the release of lead and copper from distribution system and premise plumbing materials.

This course is non-refundable.

Certificates of Completion

2 Hours

*AWWA will award a Certificate of Completion upon success passing of this course. This does not automatically imply that your state agency will award you CEUs. It is the individual's responsibility, before registering for any continuing education credit program, to contact the appropriate licensing agency.