reclamation
1. [ noun ] the conversion of waste land into land suitable for use of habitation or cultivation
Synonyms: renewal rehabilitation revival
Related terms: restoration reforestation urban_renewal rehabilitate
2. [ noun ] the recovery of useful substances from waste products
Related terms: recovery reclaim
3. [ noun ] rescuing from error and returning to a rightful course
Synonyms: reformation
Examples:

"the reclamation of delinquent children"

Related terms: rescue reform