reclamation

nouns

the conversion of wasteland into land suitable for use of habitation or cultivation
reclamation, rehabilitation, renewal
is derived from
reclaim
rescuing from error and returning to a rightful course
"the reclamation of delinquent children"
reclamation, reformation
is derived from
reclaim
the recovery of useful substances from waste products
reclamation
is derived from
reclaim
is a type of (narrower)
the act of regaining or saving something lost (or in danger of becoming lost)
recovery, retrieval