2.2.1.1. Sand Capping Techniques

Try these first

1. 1.

   What is monitored natural recovery?

   Hint

   Think about what it means to 'monitor' natural processes while allowing them to occur.

2. 2.

   What does in-situ capping involve?

   Hint

   Consider how this technique is similar to putting a cover on something.

3. 3.

   What is the primary benefit of monitored natural recovery?

   • A. It is always effective for all contaminants.
   • B. It can reduce remediation costs.
   • C. It eliminates the need for monitoring.

   Hint

   Consider how natural processes can sometimes work without intervention.

4. 4.

   True or False: In-situ capping can lead to anaerobic conditions underneath the cap.

   • True
   • False

   Hint

   Think about how covering something can change its environment.

5. 5.

   Design a remediation plan considering monitored natural recovery for a factory-discharge contaminated sediment scenario. Discuss potential benefits and risks.

   Hint

   Think through what the monitoring process would entail and how you would identify changes to the environment.

6. 6.

   Critically analyze the effectiveness of dredging in heavily populated areas with navigational requirements compared to in-situ capping.

   Hint

   Consider both short-term and long-term ecological impacts in your discussion.