Japan - Ochiai sewage treatment plant

Introducing the team of 6 people responsible for the explanation, discussing the importance of the facility in urban life, and describing the history and development of the sewage system in Tokyo.

Explaining the creation and challenges faced during the Meiji Era development of sewage systems in Tokyo near Kanda Station.

Discussing the challenges and improvements in sewage systems during the post-war period, including the impact on water quality and river treatment.

Detailing the process of collecting, treating, and recycling water in Tokyo's sewage system, including the role of different treatment facilities and quality control measures.

Exploring the efforts in infrastructure maintenance, disaster preparedness, and future developments in Tokyo's sewage system, including environmental initiatives and staff training.

The process of removing sediment from water is described, starting with the removal of dirt and mud from the bottom of a tank followed by sending the water for further treatment.

Microorganisms consume fine dirt particles that are too small to be visible, purifying the water in the process.

The water undergoes further treatment involving the use of sand and additional microorganisms to purify it even more.

Microorganisms consume dirt, becoming heavier, and forming sludge that settles at the bottom of the water.

The water goes through a final treatment process involving sand to further enhance its cleanliness before being used.

The cycle of water usage, purification, and recycling is explained, highlighting the importance of water conservation and environmental protection efforts.

Details about the waste water treatment facility and its role in water purification and conservation.

The facility focuses on energy conservation and efficient water treatment methods to reduce environmental impact.