toilet facilities
type: Concept
broader: sanitary engineering

sanitary drainage
type: Concept
broader: sanitary engineering

refuse disposal
type: Concept
broader: sanitary engineering

sanitation
type: Concept
narrower: sanitary engineering

fluid waste disposal
type: Concept
broader: sanitary engineering

sanitary engineering
type: Concept
narrower: waste management
narrower: fluid waste disposal
narrower: refuse disposal
narrower: recycling
narrower: sanitary drainage
narrower: toilet facilities
narrower: waste disposal, fluid
narrower: water softening
broader: sanitation

recycling
type: Concept
broader: sanitary engineering

waste disposal, fluid
type: Concept
broader: sanitary engineering

concepts
type: Collection
type: ConceptGroup
member: sanitary engineering

water softening
type: Concept
broader: sanitary engineering

waste management
type: Concept
broader: sanitary engineering