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- Kosuzume Purifiction Plant Facility Overview
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Kosuzume Purifiction Plant Facility Overview
Last Updated June 18, 2024
Kosuzume Purifiction Plant Kosuzume Purification Plant
Kosuzume Purifiction Plant originates from the Sagami River, which flows through the center of Kanagawa Prefecture. Construction was completed in 1965 as co-operated facility in Yokohama City (water supply and industrial water supply) and Yokosuka City in Yokosuka City. After two expansion work, the current water purification capacity is 820,000 m3 per day (about 2.5 cups of Yokohama Stadium). The purified water is supplied mainly to the southern areas of Yokohama, such as Konan Ward, Asahi Ward, Isogo Ward, Kanazawa Ward, Kohoku Ward, Totsuka Ward, Sakae Ward, and Izumi Ward. It is responsible for about one-third of Yokohama City and about one-half of Yokosuka City.
| Location | 2470, Kosuzumecho, Totsuka-ku, Yokohama-shi |
|---|---|
| Site area | 237,905m2 |
| Standard processing capacity | 820,000m3/day |
| Water sources | Sagami River (Banyu River) |
| Sinking pond | Sledge blanket type (pal sweater) sinking pond 50,000m3/day × 10 pond, horizontal flow type sinking pond with sloping plate 80,000m3/day × 4 pond |
| Filtration pond | 116m2 x 54 ponds |
| Distribution reservoir | Total effective storage capacity 137,300 m3 |
Plan of Kosuzume Purifiction Plant
1 Central Administration Office
It is the heart of a water purification plant, and operates and monitors all facilities around the clock.
2 Pumping pump
Raw water arriving at a point 40 meters below ground is pumped up to the ground. Three of the six units are power-saving, and power consumption is reduced.
3 Sinking Pond
Removes suspended matter in raw water.
The photovoltaic panels prevent the growth of algae and at the same time effectively utilizes electricity.
4 Filtration Pond
Fine suspended matter is removed through a layer of sand. Solar power generation is performed using a cover to prevent foreign matter contamination.
5 Reservoir (No. 2)
Store tap water and send water to the city if necessary. The upper part is used by citizens as a sports park.
6 Reservoir (No. 6)
This is a cylindrical ground distribution reservoir. In addition to supplying water to the city, it is also used for cleaning water for filtration ponds.
7 Water Quality Meters
In order to constantly send safe water, we constantly monitor the water quality of each water purification process.
8 Drainage Pond
After the water purification treatment is concentrated here, it is sent to the Sewerage River Bureau Nambu Sludge Treatment Plant for treatment.
9 Hybrid Outer Light
We have installed three outdoor lights that light only the power generated by sunlight and wind power. This is one of the measures to reduce the environmental impact.
10 Electric cart
If you are worried about walking around the large area, we will guide you with an electric cart that does not disturb the environment.
For inquiries to this page
Water Works Bureau Water Purification Department Kosuzume Purifiction Plant
Phone: 045-851-1731
Phone: 045-851-1731
Fax: 045-851-7229
Email address: su-kosuzujosui@city.yokohama.jp
Page ID: 177-436-945
