3. Post-Dredging Considerations

Try these first

1. 1.

   What is monitored natural recovery?

   Hint

   Think about what 'natural recovery' implies.

2. 2.

   What does in-situ capping involve?

   Hint

   Focus on the idea of 'covering' something.

3. 3.

   What does monitored natural recovery rely on?

   • Active remediation
   • Natural processes
   • Mechanical removal

   Hint

   Think about what 'natural recovery' means.

4. 4.

   True or False: In-situ capping can increase the depth of water channels.

   • True
   • False

   Hint

   Consider the implications of adding material on top.

5. 5.

   Propose a comprehensive strategy for cleaning up a harbor with heavy metal contamination using all three methods discussed: MNR, capping, and dredging. Explain each method's role.

   Hint

   Consider how each method can complement the others.

6. 6.

   Design a model to estimate the timeline for recovery of a dredged area using the MNR method, factoring in the characteristics of the contaminants and natural attenuation rates.

   Hint

   Think about how long natural processes can take depending on the context.