Wastewater Removal System
(Combined sewer systems and Separate sewer systems)
"Wastewater" consists of both sewage and rainwater from homes and factories. There are two systems for removing sewage-combined and separate.
In the combined system, sanitary sewage and rainwater is collected in the sewers and transported to a water reclamation center. On the other hand, in the separate system, sanitary sewage and rainwater are collected in separate sewers. Sanitary sewage is sent to a water reclamation center and rainwater is sent directly to rivers and the sea.