Introduction of Nambu Sludge Treatment Plant

• Event information
• Facility tour
• Overview
• Characteristics
• Access
• Storage status of sludge incinerated ash
• Construction in the ground(For construction contractors who excavate roads, etc.)

Return to the introduction of water reclamation centers

Event information about Nambu Sludge Treatment Plant.

In Nambu Sludge Treatment Plant, we accept visitors from time to time.

If you wish, please contact us by phone at the following times.

　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 phone, please fill out the following application form with required items and apply by fax or e-mail.

Facility tour application (word: 19KB)

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

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

Sludge from six water reclamation centers is transported by pipeline and processed in Nambu Sludge Treatment Plant.

The sent sludge is concentrated and then put into the digestion tank, decomposing organic matter in the sludge to generate digestive gas and 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, a portion of the dewatered sludge is used effectively as a substitute for fossil fuels by carbonizing it at low temperatures.

　　　　　　Sewage sludge is incinerated and low-temperature carbonized to make it safe and hygienic.

　　　　　　In the digestion tank, sludge is decomposed by the action of microorganisms to generate digestive gas mainly composed of methane gas.
　　　　　　The generated digestive 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 system for renewable energy.
　　　　　　This is sold to electric power companies.
　　　　　　In-house power in Nambu Sludge Treatment Plant is the electricity generated by digestive gas power generation, and the adjacent waste incineration plant, Resources and Waste Recycling Bureau Kanazawa Works.
　　　　　　It is provided by the power generated in the field.
　　　　　　Nambu Sludge Treatment Plant Processing Flow (PDF: 851KB)

Get off at Namiki-Kita Station, exit the ticket gate, and turn left.

Proceed toward Exit 2.

Go down the stairs at Exit 2.

Go on while looking at the Kanazawa Wastewater Treatment Plant gate to the right.

After walking for a while, you will reach the Koura 1-chome intersection.

Cross the pedestrian crossing with Namiki-Kita Station behind and turn right.

After walking for a while, you will find the gate of Nambu Sludge Treatment Plant on your left.

I'll enter the gate.

After entering the gate and going straight, you will find the administration building on the right.
There is an office on the second floor of the administration building.

The sludge incineration ash stored in the 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 approximately 25,000 tons at one time, but due to the conversion of a part of construction material, The storage status of incineration ash is as follows. (As of October 31, 2019)

(as of November 2019)

• Information on sludge incineration ash

When constructing underground, make sure that the sludge pipe is close to each other.