About: activate sludge

Premodifier: activate
Head noun: sludge

Same concepts

Broader concepts

label	provenance	confidence
biological process	isap:448396015	0.747861
secondary treatment	isap:425682370	0.542998

Narrower concepts

label	provenance	confidence
sludge	isap:385168160	0.388661
lagoon	isap:397061587	0.110325