2.5. Dissolution and Percolation

Try these first

1. 1.

   What does NAPL stand for?

   Hint

   Think about the phases of liquids in environmental engineering.

2. 2.

   What is the difference between D-NAPL and L-NAPL?

   Hint

   Consider their behavior when spilled.

3. 3.

   What type of NAPL sinks in water?

   • D-NAPL
   • L-NAPL
   • Both A and B

   Hint

   Remember the behavior of liquids based on density.

4. 4.

   True or False: D-NAPLs float on the surface of water.

   • True
   • False

   Hint

   Focus on the definitions of D-NAPL and L-NAPL.

5. 5.

   A factory spills D-NAPL into a river. Explain the initial behavior of the D-NAPL and consequences over time. How would you model this scenario?

   Hint

   Think about both the immediate and long-term impacts of the spill.

6. 6.

   Discuss a remediation strategy for a historical contamination site with D-NAPL in sediments. What factors will guide your cleanup efforts?

   Hint

   Consider the characteristics of the contaminants and their interactions with sediments.