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Northern sludge exploitation of resources center

Last update date March 13, 2019

Northern sludge exploitation of resources center whole view

Processing facility whole view



We return to introductions such as water reproduction center

There is no event planning now.

In northern sludge exploitation of resources center, we accept visit of citizen's all of you at any time.
When general one and intern from foreign countries are included, please be careful as application for visit method is different.
In addition, you want, and, by convenience of construction and duties of our center, please note that you may not attach.

(1) General one
We provide equipment and, for citizen's one or student of elementary school in the city, observe.
Target example: The staff of citizen's one, students such as the city elementary and junior high school, high school, university, the city working, country and related organizations
Application method:
・You call, and please contact the following person in charge within one week before visit preferred date.

The northern sewer center exploitation of resources charge (northern sludge exploitation of resources center)
TEL 045-502-3738 (weekdays 9:00-17:00)
E-mail ks-hokubugesuido@city.yokohama.jp

In addition, please submit the following applications after having made a reservation over telephone.
Facility visit application (word: 29KB)

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(2) Intern from foreign countries
For interns from foreign countries, we receive facility inspection.
Target example: (group (country or JICA accepting interns), company, university) such as overseas interns,
Yokohama water business meeting member company (thing contributing to overseas business development)
Application method:
・You e-mail the following person in charge within two weeks before inspection preferred date or call, and please contact.

The sewer business management section (the sewer international charge)
TEL 045-671-3967 (weekdays 9:00-17:00)
E-mail ks-jigyomanagement@city.yokohama.jp

(3) Offer of experiment sample
We offer samples in experiment.
Target example: The sewer, environmental conservation related organizations, university and public research organization,
Companies with the Motoichi sewer-related duties results
Application method:
・You call, and please contact the following person in charge within one week before offer preferred date.

The northern sewer center exploitation of resources charge (northern sludge exploitation of resources center)
TEL 045-502-3738 (weekdays 9:00-17:00)
E-mail ks-hokubugesuido@city.yokohama.jp

After having made a reservation over telephone, please submit the following applications.
Experiment samples offer application (word: 31KB)

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In addition, please submit the following applications when you announce exhibition of laboratory finding using the sample mentioned above.
Experiment sample data publication application (word: 30KB)

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About sludge processing
Sewage sludge which occurred in process of the sewerage treatment reduces progressively by processing concentration, digestion, dewatering and finally incinerates. We gather sewage sludge occurring from water reproduction center of 11 places of city in two places of sludge exploitation of resources centers in Yokohama-shi and process. By the collection processing, we plan construction costs of facility and reduction of maintenance management fee. In addition, we make good use of digestion gas and destruction by fire ash which occurred and contribute to form recycling society.

Flow of sludge processing

Flow of sludge processing

sodei*bi
It is facilities which oshiso makes sludge occurring in each water reproduction center by sodei pump to sludge exploitation of resources center.
We receive and provide mud
We receive sludge made sodei from each water reproduction center, and screen is facility which separates, and sends (garbage) and sludge to lend to concentration facilities.
Concentration facilities
We concentrate sludge mechanically and are facilities putting density into high digestion tank. We let you break down organic matter of digestion tankage sludge and reduce sludge and are facilities stabilizing sludge property.
Dewatering facilities
We add medicine in sludge reduced by digestion tank and we produce dewatering cakes and send to destruction by fire facilities in oshiso pump father.
We burn destruction by fire facilities sludge cake in incinerator and make good use of ash as improved soil, cement raw materials.


Structure of sludge processing
As sewage sludge which has been sent to sludge exploitation of resources center includes a large quantity of moisture, at first we remove moisture using concentration machine. Then, we perform processing called digestion (※) and we reduce organic matter and stabilize property. We spin-dry again and we burn in incinerator and make ash afterwards. After these trips, we let you reduce sewage sludge to a one-400th weight and make hygienic state without odor. We handle moisture which we removed in process of reduction again (PDF: 163KB) in separation liquid processing facility.
※ Concentrated sludge is collected in digestion tank by concentration machine and is stirred at about 36 degrees Celsius in digestion tank on around 30th. Using function of anaerobic microorganism, we break down organic matter of sludge without sending air by digestion tank. Digestion means this, and digestion gas and water occur from organic matter broken down. Digestion gas is generated a lot in winter and is in few states in the summer. (PDF: 63KB)

In northern sludge exploitation of resources center, we gather sludge of 5 water reproduction center of the northern area (Tsuzuki, Kohoku, the northern part first, Kanagawa, the northern part second) and perform concentration, digestion, dewatering, each processing of destruction by fire.

Summary
ItemContents
Plottage185,000m2
Sludge processing capacity12,500m3/day
Processing methodConcentration → Digestion → Dewatering → Destruction by fire → Ash utilization
The collection processing startSeptember, 1987

Sludge exploitation of resources center brochure (PDF: 1,875KB)

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Utilization of digestion gas
Approximately 60% of digestion gas include harmful hydrogen sulfide in methane, about 35% as impurities ingredient with carbon dioxide. Therefore it adsorbs hydrogen sulfide to absorption liquid and, using desulfurization equipment with absorption liquid, is eliminated. There is calorific value of half degree of city gas and uses in power source in sludge exploitation of resources center as gas generation, and digestion gas uses as destruction by fire fuel of sludge. Digestion gas generation quantity of one year covers approximately 83% of electricity to use in place with about 32,000,000kWh (2015). In addition, this generation electric energy is equivalent to about 10,700 households of shares of ordinary household. In addition, we use waste heat to occur from engine for warming of digestion tank.
Utilization of electricity, water
When we generate electricity using heat to occur when we burn up garbage in Tsurumi factory in addition to digestion gas generation of our center and use electricity that remained in the northern part second water reproduction center and the northern part sludge exploitation of resources center, and there is surplus electric power more, we sell to electric power company. In addition, we reuse water treated in the northern second water reproduction center as plant water and reduce water supply consumption.
Utilization of destruction by fire ash
We mix sludge destruction by fire ash with construction outbreak soil and improve and are reused as construction backfills and contribute to recycling society.
Approach to environmental pollution measures
About air pollution material which occurs when we burn up sludge, we watch for 24 hours.

Guide map (PDF: 143KB)


When he/she is in from Tsurumi Station East Exit

Tsurumi Station Yokohama East Exit Bus Terminal eighth Paul
Going to harborside bus crane 08 system fureyu
The nearest "in front of Toagosei Co., Ltd. Yokohama factory" bus stop is 9 stop eyes, about 15 minutes.
Photograph of Tsurumi Station Yokohama East Exit Bus Terminal


There is the front gate when we get off at "in front of Toagosei Co., Ltd. Yokohama factory" bus stop.

Photograph of bus stop in front of Toagosei Co., Ltd. Yokohama factory



When he/she is in by car

We turn right at "Bentencho" of Tsurumi industrial road intersection (from the Yokohama area)

Photograph of Bentencho intersection


We turn right at railroad crossing this side

Photograph of railroad crossing this side road


We turn left at the end

Photograph of around Ono-machi road


Through railroad crossing, the front gate is on the left side of about 1,200 meters ahead.

Photograph of railroad crossing


Ground plan of the hall

We turn left at the end of 150 meters of depths from the front gate, and the first floor of the right building is office.

Northern sludge exploitation of resources center plan



When you perform construction to the underground, please confirm whether sodeikan approaches beforehand.

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The northern part of Environmental Planning Bureau sewer Facilities Department sewer center (northern sludge exploitation of resources center)

Telephone: 045-502-3738

Telephone: 045-502-3738

Fax: 045-502-2866

E-Mail address ks-hokubugesuido@city.yokohama.jp

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