WATER SUPPLY; SEWERAGE

Description

Class E03 encompasses technologies and systems for the supply of fresh water and the collection, treatment, and disposal of sewage and wastewater. This includes water intake and storage facilities, distribution networks, treatment plants, sewage collection systems, and purification methods. The classification covers both infrastructure design and mechanical/chemical processes involved in water management, ranging from municipal systems to specialized treatment apparatus, but excludes water purification achieved primarily through chemical reactions (covered under C), which are classified by their chemical nature rather than system architecture.