reclamation
noun [ U ]
ENVIRONMENT uk/ˌrekləˈmeɪʃən/ usthe activity of making land that is under water or is in poor condition suitable for farming or building on:
a land reclamation project
On closing the mines they hired a forestry expert to improve their reclamation plan.
the activity of getting useful materials from waste:
Experts at the conference will address topics such as water reclamation and reuse.