Practice Discussion On Contaminate Transport (2) - Unsteady State Release From Sediments

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6 sample questions

Question 1.
What is contaminant transport?
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Think about how substances move through the environment.
Question 2.
What does the retardation factor represent?
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R measures speed reduction.
3Question 3.
What is the retardation factor (R)?
- Indicates contaminant concentration
- Measures contaminant transport speed reduction
- Defines the boundary conditions
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It starts with 'R'!
4Question 4.
True or False: Core sampling is used to obtain only surface data.
- True
- False
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Think about studying the layers!
Question 5.
If a contaminant is found at a depth of 10cm in sediment with a concentration of 200 mg/kg and at 20cm with 150 mg/kg, calculate the average concentration between these two depths.
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Sum the concentrations and divide by two.
Question 6.
Given a retardation factor of 2 and a fluid flow speed of 1 cm/s, calculate the contaminant transport speed.
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Remember the retardation factor reduces the speed of transport.

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