Procedure - Sample and test the sedimentation and clarification processes

Purpose

The purpose of this procedure is to ensure that sampling and testing activities, and process calculations associated with the sedimentation and clarification treatment processes are carried out in a uniform manner.

Context

Sedimentation and clarification treatment processes usually occur after coagulation and flocculation processes. Sometimes treated water flows from the flocculation tanks into the sedimentation tanks in the same process. For this example they are treated as two separate processes.

Definitions

Clarification
Sedimentation

Actions

Required actions

  1. Take samples
  2. Test samples
  3. Calculate process information

Other learning actions

  • As you work through the content, there are activities and worksheets to complete.
  • Keywords and their meanings are in the glossary.
  • The Resource Book has information about water treatment background concepts legislation, occupational health and safety (OHS) and chemistry.
  • Talk with other students and your instructor about the content.
  • Ask your lecturer about the workplace project and assessment.

Resource Book

To work through this task, you will need to be familiar with the following concepts found in the Resource Book:

Water treatment background

Water treatment plant process map
Sedimentation and clarification
Water quality parameters
SCADA

Chemistry concepts

Chemistry concepts

Occupational Health and Safety

Occupational health and safety
Controlling hazards and risks

Legislation

Drinking water guidelines
Environment
Legislation
Australian Standards
Codes of practice