- Top menu|Search

     Yokohama-shi top page > Water Works Bureau top page  > Introduction of business > Water supply business of Yokohama-shi > Nishiya water purification plant redevelopment business

Yokohama-shi Channel business
Water supply business summary
Management form
The history of Yokohama Channel
Budget, financial statements of Water Works Bureau
Various policies, plans
Nishiya water purification plant redevelopment business
Kawai water purification plant redevelopment business
Duties index based on water supply business guidelines
Water supply business water for industrial use way business statistics annual report
Water supply-related laws and ordinances
List of organizations
About procedure

  

Nishiya water purification plant redevelopment business (going to review about basic plan.)


What's New

The update date Contents
April 18, 2016 About Nishiya water purification plant redevelopment business basic plan (summary version)
April 23, 2015 About examination result of clean water disposal method in Nishiya water purification plant

About Nishiya water purification plant redevelopment business basic plan (summary version)

 We pushed forward earthquake resistance of facility sequentially until now, but, at Nishiya water purification plant, there is problem in deterioration and quake resistance now in filtration ponds. Therefore, we will push forward earthquake resistance of these facilities in future and carry out redevelopment including introduction of clean water disposal method suitable for the Haramizu quality of the water.
 In addition to clean water processing facility, we gathered summary of basic plan of redevelopment which related facilities such as basic design development of the adjacent Yokohama Channel Memorial included.

   

 

About examination result of clean water disposal method in Nishiya water purification plant

 Because we have problem in deterioration and quake resistance in some facilities, at Nishiya water purification plant, we examine redevelopment. On the other hand, in clean water processing, we inject powder activated carbon as odor measures due to algae increase in Sagamiko of water source, but it is stable, and there is in the situation that it is difficult to process when the quality of the water particularly suddenly fluctuates.
 Based on such situation, we pushed forward examination about introduction of appropriate clean water disposal method depending on the water source quality of the water and, as one, started collaborative investigation with private enterprise about granular activated carbon processing from 2011 and tested proof for introduction.
 Furthermore, we installed "Nishiya water purification plant clean water disposal method study meeting" composed of outside well-informed people in December, 2012 and pushed forward examination while demanding opinions from specialized knowledge.
 About the most suitable clean water disposal method to introduce into Nishiya water purification plant, we gathered result that we examined so far as report.



 

[reference] "Nishiya water purification plant clean water disposal method study meeting" committee (honorific title abbreviation)

Satoshi Takizawa (chairperson) University of Tokyo Graduate School engineering system graduate course city engineering specialty professor
Takako Aizawa Water supply Research and Development Center president researcher
Masaki Ito National Institute of Public Health living environment Research Department seat of honor chief study official
Yukihiko Tsutsumi Fukuyama municipal university urban management department urban management subject professor

 

※Water supply technology manager is elected elsewhere as committee by City of Yokohama, Water Works Bureau



Get ADOBE READER

※"Adobe Acrobat Reader" (free) is necessary to look at PDF (Portable Document Format).
Please download than the left icon.

▲ To TOP of this page




     Yokohama-shi top page > Water Works Bureau top page  > Introduction of business > Water supply business of Yokohama-shi > Nishiya water purification plant redevelopment business

Water Works Bureau fountain mark City of Yokohama, Water Works Bureau Planning Division - April 23, 2015 making - October 12, 2017 update
Opinion, inquiry - su-keikaku@city.yokohama.jp
Telephone: 045-633-0180 - FAX: 045-663-8820
© 1998-2017 City of Yokohama. All rights reserved.