Question

Conduct online research on the classes of soil remediation: in-situ and ex-situ. Briefly describe your findings.

Answer 1

Answer:

(Answers may vary.)

There are two classes of soil remediation: in-situ and ex-situ.

In in-situ remediation, there is no excavation of the contaminated soil. This remediation is an economical way of cleaning up. However, it takes a long time for the treatment to be effective. In addition, the treatment is not uniform because of variability within soil and difficulty in monitoring remediation progress.

Ex-situ remediation involves excavating a contaminated area. In this method, the soil is either treated on the same site or transported to a remote site for cleaning. This type of remediation is complex and expensive, but very effective. It involves the following:

homogenization of the contaminated soil before treatment

monitoring to ensure that the soil is cleaned to the required level

Explanation: