Required knowledge of maintenance

~ To create a good water environment~

Last Updated January 24, 2024

It is a page that summarizes the main points of sewerage regulations and maintenance of facilities as knowledge necessary for environmental conservation of the sea and rivers for city businesses that use public sewers.

In order to perform appropriate maintenance

About sewer regulation (section A & B) (outside site)

Slide A&B (PDF: 1,051KB)

About neutralization processing (Section A-1) (external site)

Slide A-1 (PDF: 829KB)

About coagulation sedimentation treatment (Section A-2) (external site)

Slide A-2 (PDF: 716KB)

Oil and water separation (Section B) (External Site)

Slide B (PDF: 1,054KB)

Reference materials

Text summary

Administrator of Class Abatement Facilities Text

For details on neutralization treatment and coagulation sedimentation treatment facilities, see "V abatement facilities, etc."

Administrator of Class B abatement Facilities Text

For more information about oil and water separation tanks, see “III. Treatment and Maintenance of Oil Containing Wastewaters”.

Wastewater Guidance Guidelines for City of Yokohama, Environmental Planning Bureau Plant

Please refer to the City of Yokohama, Environmental Planning Bureau Plant Guidelines and its interpretation and operation.

I want you to know more about "Yokohama Sewer"

It is a collection of links that introduce the outline of the sewer of Yokohama City and each approach to have you know about the sewer business of Yokohama City.

Yokohama Sewer 150

Let's know the sewerage system in Yokohama City!

Introduction of Water Reclamation Centers

Hama Navi September 3, 2022 Broadcast Link to "Yokohama Sewer" I want you to know more (external site)

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