3.1. Mass Transfer Coefficient Discussion

Try these first

1. 1.

   What does the mass transfer coefficient (K) measure?

   Hint

   Think about transferring something between two different materials.

2. 2.

   Give an example of a dense non-aqueous phase liquid.

   Hint

   What kind of chemical is known to sink in water?

3. 3.

   What is the role of the mass transfer coefficient?

   • A measure of density
   • Rate of substance transfer
   • Environmental clean-up cost

   Hint

   Think about what it measures in substance interactions.

4. 4.

   True or False: DNAPL floats on water.

   • True
   • False

   Hint

   Consider the definition of DNAPL.

5. 5.

   Given a scenario where a DNAPL is introduced into a flowing river, analyze the expected impact on local sediment and water concentration over time using mass transfer principles.

   Hint

   Consider variables like flow speed and the K coefficients you have discussed.

6. 6.

   Design an experiment to measure the mass transfer coefficients for a new chemical pollutant in a controlled water tank, detailing each step and expected outcomes.

   Hint

   Remember to ensure you are documenting relevant conditions to apply the right empirical correlations.