Introduction of Nambu Sludge Treatment Plant

• Event Information
• Facility tour
• Overview
• Characteristics
• Access
• Storage status of sludge incineration ash
• Construction in the ground(To the construction contractors excavating roads, etc.)

Returning to Introduction of Water Reclamation Centers

Event information about Nambu Sludge Treatment Plant.

Nambu Sludge Treatment Plant accepts citizens' tours from time to time.

If you wish, please contact us by phone first during the following hours.

　Monday to Friday 9:00 to 17:00 (excluding holidays and New Year's holidays (from December 29 to January 3))

After making a reservation by telephone, please fill out the following application formrequired items and apply by fax or e-mail.

Facility Tour Application Form (word: 19KB)

Phone: 045-774-0848
FAX： 045-771-1825
E-mail： gk-nambugesuido@city.yokohama.jp

Nambu Sludge Treatment Plant is a facility that treats sludge generated during the sewage treatment process at the Water Reclamation Center.

Sludge from six water reclamation centers is transported through pipelines and integrated treatment at Nambu Sludge Treatment Plant.

The sent sludge is concentrated and then put into the digestion tank, where organic matter in the sludge is decomposed to generate digestion gas to reduce the amount.

The reduced sludge is dehydrated and then incinerated, and the generated ash is recycled as a raw material for construction materials.

In addition, some of the dewatered sludge is effectively used as a substitute fuel for fossil fuels by converting it at low temperature.

　　　　　　By incinerating sewage sludge and carbonizing it at low temperature, it is safe and hygienic.

　　　　　　In the digestion tank, sludge is decomposed by the action of microorganisms to generate digestion gas with methane gas as the main component.
　　　　　　The generated digestion gas is used as an auxiliary fuel for incineration, and is used for power generation.
　　　　　　The generated power will be used on site, and renewable energy using the feed-in tariff scheme for renewable energy.
　　　　　　As a result, it is sold to electric power companies.
　　　　　　Nambu Sludge Treatment Plant's in-house power is powered byResources and Waste Recycling Bureau Kanazawa Kogyo Co., Ltd.
　　　　　　It is covered by the power generated in the field.
　　　　　　Nambu Sludge Treatment Plant Processing Flow (PDF: 851KB)

Get off at Namikikita Station, exit the ticket gate and turn left.

Proceed to Exit 2.

Go down the stairs at Exit 2.

Go ahead while looking at the Kanazawa Wastewater Treatment Plant Pass Gate.

After walking for a while, you will arrive at Koura 1-chome intersection.

Cross the pedestrian crossing with Namikikita Station behind and turn right.

Walk for a while, you will find the Nambu Sludge Treatment Plant Gate on your left.

Enter the gate.

Go straight into the gate and you will find the administration building on the right side.
There is an office on the second floor of the administration building.

The amount of sludge incineration ash stored on site due to the effects of the Fukushima Daiichi Nuclear Power Plant accident at the time of the Great East Japan Earthquake in March 2011 reached about 25,000 tons at one time, but due to the conversion of a part of the construction material, The storage status of sludge incineration ash is as follows. (As of October 2019)

(As of November 2019)

• Information on sludge incineration ash

Before constructing underground, check in advance that the mud tube is in close proximity.