Water Treatment Plant Operation, Volume II, Chapter 15, Specialized Treatment Processes (Trihalomethanes and Arsenic Removal)

Following completion of Chapter 15, students should be able to:

  1. Describe how trihalomethanes are formed.
  2. Explain why trihalomethanes are a problem in drinking water.
  3. Collect samples for trihalomethane analysis.
  4. Identify control strategies for trihalomethanes.
  5. Describe treatment processes capable of controlling trihalomethanes.
  6. Select and implement a cost-effective means of controlling trihalomethanes.
  7. Describe why we are concerned about arsenic.
  8. Review the various water treatment processes used for reduction or removal of arsenic.
  9. Safely operate, maintain, and troubleshoot a typical arsenic treatment plant.
  10. Review the plans and specifications for an arsenic treatment plant.
  11. Properly dispose of wastewater and residuals from an arsenic treatment plant.
  12. Monitor an arsenic treatment plant for process control and compliance.
  13. Properly perform recordkeeping and reporting tasks for an arsenic treatment plant.

The main purpose of this chapter is to teach operators how to safely operate and maintain specialized water treatment processes. These specialized treatment processes are used to control trihalomethanes and reduce or remove arsenic from water.

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