NWP347B – Monitor, operate and control
coagulation and flocculation processes
Tasks
Monitor and investigate
Samples and test
Operate and control
Record and report
What to do now
1.
Apply what you have learned in a workplace activity or project.
2.
Have your instructor review your work.
3.
4.
Your instructor will sign this sheet when you have successfully completed the task.
Ask your instructor if you need to submit this sheet as evidence of your learning.
When you close the document you will be prompted to save your changes. Save the document to your computer hard
drive or a removable storage device such as a USB drive.
When finished, print it and keep it with the other forms and records. You may be required to submit this document as
part of your evidence of learning for this task. Please check with your instructor or team leader.
Suggested project
Suggested project 1
Research how your plant has been designed. What assumptions were made with respect to:
• key treatment processes components,
• type of water treated,
• fixed components,
– chemicals used
– tank volumes
– optimum flow rates
What happens if water characteristics change? How flexible are the treatment processes to changes in source
water characteristics? What other changes could impact on water treatment processes? What strategies are in
place to deal with changes?
Suggested project 2
Water turbidity has decreased from an average of 80 - 100 NTUs to a low 30-20 NTUs. What issues does this
present for a water treatment plant?
Consider:
 expected turbidity / ph range,
 dosing regime,
 types of coagulant / coagulant aids / flocculants used by the plant.
Suggested project 3
Water turbidity can vary between a range of 200 - 400 NTUs and sometimes goes as high as 600 NTUs.
What issues does this present for a water treatment plant?
Consider:
 expected turbidity / ph range,
 dosing regime,
 types of coagulant / coagulant aids / flocculants used by the plant.
Workplace project
Page 1
Workplace activities and projects
List the activities and projects you are doing that relate to this unit. Discuss them with your lecturer. Your
lecturer will tell you what to submit as evidence of your learning.
Sign off:
Competency achieved
My name:
My instructor:
Instructor’s signature:
Workplace project
Date:
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