3.1. Confined Disposal Facilities for Dredged Material

Try these first

1. 1.

   What is monitored natural recovery?

   Hint

   Think about the role of nature in cleaning contaminated areas.

2. 2.

   What does in-situ capping involve?

   Hint

   Consider how layering might affect contamination.

3. 3.

   What is the main purpose of monitored natural recovery?

   • To actively remove contaminants
   • To allow nature to clean pollutants
   • To cap sediments

   Hint

   Think about the role of nature in the recovery process.

4. 4.

   True or False: In-situ capping prevents organisms from living in sediments.

   • True
   • False

   Hint

   Consider the effect of covering sediments.

5. 5.

   Analyze the potential ecological impacts of using in-situ capping in a tidal area with diverse marine life. What factors must be considered?

   Hint

   Consider how capping interacts with existing life.

6. 6.

   Evaluate the trade-offs between hydraulic and mechanical dredging within urban waterways with active boat traffic.

   Hint

   Think about the context in which each method is used.