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Water Quality Activity 2Water Quality Activity 2
Treatment Treatment
Amy BiddleAmy Biddle
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Water Quality Activity 2:
Objectives:
To use digital imaging to track the removal of natural organic matter from water by alum and activated carbon.
To compare the effectiveness of treatment methods for removing natural organic matter.
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Timeline: Treatment Experiment
Today: 10:00- 10:30: Water Tx Activity Intro: very short Set up: filter
Break10:45- 11:15: Finish Tx set up
Allow to settle
Over the course of the day (after settling)
Take treatment images
Thursday:9:00- 10:00: Water treatment theory
How to do image analysis: QuickClean up aquaria and Tx dishes
Friday:9:00- 10:30: Image Analysis/ clean up: finish
Group share: Results
Application to classroom practice
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Leached water samples
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For Each Leaf Type
+
WaterControl
UntreatedControl
AlumActivatedCarbon
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ActivatedCarbon
ActivatedCarbon
2.0 grams
Filter sample through
Ta- Da!
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AlumActivatedCarbon
ActivatedCarbon
2.0 grams Filter sample through
Ta- Da!
Alum
Adjust pH to 7 with NaHCO3
(add 5 drops, test…)
Add alum until floc is visible throughout (add 5 drops, mix…)
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Alum Treatment
pH adjustedAlum added
Flocks o’ flocs
Flocssettle
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Taking digital images: Treatments
Water
Control
Leaf 1
Untreated
Water
Control
Leaf 1
Carbon
Leaf 2
Carbon
Water
Control
Leaf 1
Alum
Leaf 2
Alum
Leaf 2
Untreated
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Sample data:
Intensity