Tokyo Metropolitan Government
Waste Landﬁll Site
Central Breakwater Outer Landfill Site・New Sea Surface Disposal Site

Photographed on January 19, 2013

Tokyo Metropolitan Government Bureau of Environment

Central Breakwater Inner Landﬁll Site

Layout117416 1418

Tokyo Port
Seaside Road

Approx. 78 haApprox. 12.3 million tonnes

51210

Central Breakwater Outer Landﬁll Site

91263

Phase 1 (dredged soil, soil from construction
sites)
78

Landﬁll area

CentralBreakwater
Outer Landﬁll Site
(Phase 2)
199 haA Block

CentralBreakwater
OuterLandﬁll Site
(Phase 1)115 ha

Landﬁll area (waste)

15211Approx. 195 ha

Landﬁll volume

139Area

20 ha

Approx. 115 ha

Phase 2 (waste)
Landﬁll area

Approx. 199 ha

New Sea Surface Disposal Site
B Block
72 haArea (A-G)

Landﬁll Capacity（A-G） Approx. 120 million m3

G Block
73 ha

C Block
69 ha
New Sea Surface Disposal SiteArea（A-E）

Approx. 319 ha

Landﬁll Capacity（A-E）Approx. 45.8 million m3

D Block
67 ha
F Block
88 ha

Approx. 480 ha

Super Eco Town Related Facilities⑰ PCB Waste Treatment Plant(Operating from November 2005)

E Block
91 ha⑱ Pyrolysis and Gasiﬁcation Power GenerationPlant (Operating from August 2006)

Tokyo Metropolitan Government

Clean Association of TOKYO23① Undersea Tunnel Passage No. 2⑧ Buﬀer Reservoir⑬ Pulverized Waste Processing Facility② Bureau of Environment, Central⑨ Central Breakwater⑭ Pulverization Processing Plant for Large-Size

Breakwater Landﬁll Joint Oﬃce
③ Wastewater Treatment Plant No. 1⑩ Wharf (marine transport unloadingfacility)④ Landﬁll-Gas Utilization Facility⑪ Chubo-Ohashi Bridge⑤ Wastewater Treatment Plant No. 3⑫ Tokyo Bayside Wind Power Plant⑥ Nakashio-bashi Bridge

Waste⑮ Chubo Incombustible Waste Processing Center⑯ Chubo Ash Melting Facility(Tokyo Kazaguruma)⑦ Facility to Wash Oﬀ Soil

Caisson Type Outer Shore Protection （New Sea Surface Disposal Site）
Rainfall

100 m of moderate-sloped bank and shallow bottom
Circuit Pipe

※1

Wastewater

To Sewage
after Processing

Caisson ※2

Landﬁll Site
(Stratum of waste)
Receiving Reservoir(Pump well)
Water Shielding Sheet※3
Rear Filling
Soil

Riprap ※4

Replacement Sand

Ground Improvement(Sand compaction pile)

Steel Sheet Piling

Sea Bottom（Clay layer）

Coating Stones

Ground Improvement(Cement deep mixing)

Seabed (Mixed Layer Sand, Gravel and Clay)※1

Wastewater is rainwater that seeped through the stratumof waste to become polluted water.

※3※2

Caisson: A concrete or steel box that is ﬁlled with sand,slag, etc.

※4 Riprap: Rock that is used to support the caisson revetment.
1

Rear Filling Soil: Earth and sand that is placed behind thecaisson revetment.

Collection・Transport

Intermediate Processing(23 Wards of Tokyo)
Waste is collected and transported fromeach district.

(Clean Association of TOKYO23)
To prolong the use of landﬁll sites, waste undergoes intermediate
processing before being used as landﬁll.

The annual volume of Tokyoʼs waste has signiﬁcantly increased since 1985, primarily due to changes in lifestyleand the social system of mass consumption and mass production. In 1989, the waste volume was at a record highof 4,900,000 tonnes. In the following years, the volume decreased, totaling 2,830,000 tonnes in 2012.
Collection, Transport, Transfer(Operated in each ward)

Reuse
Recycling
centers, etc.

Large-size
Waste(Clean Association of TOKYO23)

Final Processing(Consigned by the Tokyo Metropolitan Government)

Pulverized Waste
Processing Facility
Pulverization
Processing
PlantforLarge-Size
Waste

Incineration
Plant
Metal
collection

Metal/Aluminumcollection

Combustible
Waste

IncombustibleWaste
Processing
CenterUsed asSlag

Ash Melting
Facility

Land
Transfer

Transport byShip

Chubo
IncombustibleWaste
Processing
CenterWaste volumeTotal
561,000 tonnes

Incombustible
Waste

23 Wards
Total Waste Volume

Metalcollection

New Sea Surface Disposal Site
Central Breakwater Outer
Landﬁll Site

Transfer
Large-Size
Waste

Intermediate
Processing（(1)＋(2)＋(3)）
2,830,000 tonnes(2012)

Industrial waste(from small and medium-sized businesses)

Metal/Aluminumcollection(1)363,000
tonnesIntermediate processing plant(Pulverization, selection, etc.)

Municipal waste(sludge and sewage sludge)

Garbage Collection

Pulverization Processing Plant for Large-Size Waste

2(2) 46,000
tonnes(3)152,000
tonnes
(2012)

Incineration Plant(Photo: Clean Association of TOKYO23)

LandﬁllCovering

After intermediate processing, the waste is carried and dumped at
speciﬁed locations by trucks.
The waste is then laid down by bulldozers eﬃciently and safely.

When the waste reaches a certain thickness or when road
construction is necessary, soil is applied to cover the waste.
Also, when the landﬁll is complete, a ﬁnal cover of soil is applied.

Landﬁll Operation

Covering Operation

Cell Method

Landﬁll Site Covered with Soil

Each dayʼs garbage is covered with soilin one-day increments in order to prevent
waste scattering and foul smells.

Same-Day Soil Covering

One-Day Garbage Cell

Sandwich Method
Landﬁll area covered with soil before laying down additional waste.

Patrolling the Site
In addition to managingl a n d f ill o p e r a t i o n s ,workers patrol the site fordangerous materials andto supervise insect pest
control operations. They
also handle any othersafety-related tasks.

東京都環境局

CoveringWaste
About 3 m
About 50 cm

The Sandwich Method has the following merits.
(1) Prevents waste from scattering(2) Prevents the spread of oﬀensive odors(3) Prevents vermin (prevents incubation of insect eggs)(4) Prevents waste from burning (cuts oﬀ the air)Gas Well and Gas Gathering Lines

Gas Drainage
Landﬁll waste generates
methane gas. To prevent
fires from occurring,
pipes are driven into thelandﬁll to drain the gas.

The gases that are emitted from the landﬁll site are collected, stored,
and burned in gas turbines to produce electric power.

3Wastewater Treatment
Receiving Reservoir (Pump well)Buﬀer Reservoir

The wastewater of the landfill site iscollected into a receiving reservoir locatedat the side of the peripheral road.

Wastewater Treatment Plant

After the wastewater quality is adjusted in
the buffer reservoir, the water is sent to thewastewater treatment plant.

Using various methods, the wastewaterfrom the landﬁll undergoes puriﬁcation
at the treatment plant.

Wastewater Treatment Flow
The ﬁnal disposal management facility of the landﬁll site is cut oﬀ from the sea. If left on its own, thewater from rainfall that gathers here would overﬂow. However, since the rainwater seeps through a stratumof waste to become polluted water, it is not ﬂushed out to sea. Instead, following puriﬁcation at the wastewater treatment plant, the water is released into the sewage system.
Sub sea pressure pipeline

Wastewater

No.15 Site(Wakasu, Koto Ward)
７１ ｈａ

WastewaterBuﬀer
Reservoir
150,000 m3

Inner Landﬁll Site
７８ ｈａ

Wastewater Treatment Plant

Outer Landﬁll Site
１９９ ｈａNew Sea Surface
Disposal Site (A,B)
９２ ｈａ

Wastewater Treatment
Plant No.1

Wastewater Treatment
Plant No.3

4,500 ｍ3 per day

11,500 ｍ3 per day

Sub sea pressure pipeline

Treated Wastewater

SewageCost of wastewater treatment

Volume of wastewater treatment

2.4 billion yen SewerageCharges
2012

Operation
Management
Consignations 18 ％Tokyo Bay

Quality of treatment water

ｐH……7.5 (Sewage Discharge Standards：5〜9）No.15
Site 9 %RepairExpense 10 %Chemicals
Expense10%

Treated SewageNew Sea Surface A 6 ％Others 2 %Electricity
Expense 7 %Bureau of Sewerage
Water Recycling Centerat Sunamachi

54 %InnerLandﬁll
Site 14 %Nitrogen…44 mg/L （Levels Agreed with the Bureau of Sewerage：120）
COD ……75 mg/L （Levels Agreed with the Bureau of Sewerage：150）

3.44 million m3
2012

New Sea
Surface B 20 %4OuterLandﬁll
Site 51 %Raw Water Quality at Treatment Plant 3
ｐH ……………………………… 8.2
Nitrogen ………………………… 482 mg/L
ＣＯＤ …………………………… 339 mg/L

Landﬁll Site Transition(Approx. 1994)(At Present)Garbage and incombustible
waste are used as landﬁll

After intermediate processing, waste is landﬁlled
at the New Sea Surface Disposal Site.

Trend of Disposed Amount
Tenthousand tonnes

Landﬁll site performance(ten thousand tonnes)

㻠㻜㻜New Sea Surface (B Block)
New Sea Surface (A Block)Haneda Oﬀshore
Central Breakwater Outer Landﬁll Disposal Site
Central Breakwater Inner Landﬁll Site
No.15 Site (Wakasu)
No.14 Site (Yumenoshima)
Others㻟㻡㻜㻟㻜㻜㻞㻡㻜

Fiscal 2010 2011 2012
YearPerformance49
value6056

㻞㻜㻜㻝㻡㻜㻝㻜㻜㻡㻜㻜㻝㻥㻢㻟㻝㻥㻣㻜㻝㻥㻤㻜㻝㻥㻥㻜㻞㻜㻜㻜㻞㻜㻝㻜 㻞㻜㻝㻞㼅㼑㼍㼞㻌㻔㼃㼑㼟㼠㼑㼞㼚㻌㻯㼍㼘㼑㼚㼐㼑㼞㻕Energy Eﬀective Utilization
At the Central Breakwater Inner and Outer Landﬁll Sites, electricity is generated using gas, wind power and natural sunlight.

Landﬁll-Gas Utilization Facility (Micro gas turbine)Tokyo Bayside Wind Power Plant (Tokyo Kazaguruma)

Photovoltaic Generation System

Power generation capacity (Maximum)
275 kW
Gas used
Approx. 1.6 million m3N per year
Composition of Gas Methane
Approx. 55 ％Carbone dioxide
Approx. 25 ％NitrogenApprox. 15 ％Oxygen1 % or lessGas caloriﬁc value Approx. 18 MJ/m3N （Approx. 4,300 kcal/m3N ）(2005 project granted by NEDO)

CompanyPower generation capacity

J-WIND Co., Ltd

Selling power to Tokyo Electric Power Company Co., Ltd
850 kW×2（1700 kW）

Installation capacity

Projected power generation capacity 2,500,000 kWh per year
Structure (height)

44 m to the center of the wind turbine
70 m to the highest point

Wind conditions

Annual average wind 5.4 ｍ/s

5Solar array panel

20 kW

4.0 m×18.2 m×2 sets

Module178.6 W/module×112 modules

Quality

Polycrystalline silicon(2007 Ministry of the Environment granted project)Waste Disposal by Landﬁll Plan
Having revised its “Waste Disposal by Landﬁll Plan” in February of 2012, the Tokyo Metropolitan
Government is actively working to prepare waste disposal facilities.
The revised plan includes an 18 % reduction in the volume of waste disposal by landﬁll comparedwith the previous plan.
The volume of waste that is disposed of by landﬁll is expected to continue to change in response toshifting socioeconomic conditions and advances in waste treatment and recycling technologies. As aresult, this “Waste Disposal by Landﬁll Plan” is being reviewed approximately every ﬁve years.
Waste Acceptance Policy by Type of Waste
Type of Waste

Acceptance Policy

Waste TypeGeneral Waste

・General waste produced by households, etc. within the 23 wards of Tokyo.
・All waste is accepted provided that it undergoes intermediate treatment, while
efforts are also undertaken to reduce waste volume and maximize the reuse andrecycling of resources.

Industrial Waste

・Industrial waste produced by small and medium-sized businesses within Metropolitan
Tokyo.
・Waste that has already undergone intermediate treatment is accepted up to a ﬁxedvolume.

Waste from Public
Facilities

・Waste produced from waterworks and sewage facilities within Metropolitan Tokyo.
・Waste is accepted provided that it undergoes intermediate processing.

Earth andSand Type

Dredged Soil
Soil Produced inConstruction Work, etc.

・Dredged soil is produced from streams and rivers within Metropolitan Tokyo and Tokyoports.
・Dredged soil that cannot be used for the upkeep of rivers, canals or harbors is accepted.
・This soil is used for the upkeep of the landﬁll site and as soil covering for waste.

Making Disposal Sites Suitable for the 21st 'Environment-Friendly' Century
Currently, the waste disposal of Tokyo's 23 wards is being handled at the Central Breakwater Outer
Landﬁll Site and the New Sea Surface Disposal Site. As it is the ﬁnal disposal site of the Tokyo port
area, it is of vital importance.
The Landﬁll Site Management Oﬃce has established the following seven points as our Environmental
Protection Policy.

Environmental Policy
１ Reducing Our Environmental Impact
５ Promoting Reforestation and Greeniﬁcation
２ Extending the Lifespan of Landﬁll Sites ６ Promoting Environmental Education
３ Promoting Energy and Resource Savings ７ Preparing Manuals for Emergency Response
４

Working to Prevent Global Warming

Social studies ﬁeld trip of elementaryschool students

Green lung (Biotope space)

The number of visitors in 2012 was approx. 43,000
Elementary and Junior high school students totaledapprox. 37,200〔〕
6Seedling transplantation(Central Breakwater Outer Landﬁll Site)Geographical Locations of Landﬁll Sites
Monzen Nakacho
Nihonbashi
Yurakucho
Hatchobori

Kiba
Etchujima

Minamisuna

Tsukiji
Shinbashi
Shinsuna

12Toyosu

Hamamatsucho

Nishikasai
Kasai

TatsumiHarumi PierTamachi

Arakawa RiverToyocho

Ginza

ShinonomeToyosu Pier

Shinkiba

Shibaura Pier

Kasai Seaside Park

Rainbow Bridge

AriakeShinagawaShinagawa Pier

3

No.10 Land 1

No.13 Land 1

No.10 Land 2
East Breakwater

Higashi Shinagawa

4

No.13 Land 2

Central Breakwater

Passage No.3

Oimachi

5Central Breakwater
Outer Landﬁll Site
Katsushima

Phase 1

West BreakwaterShowajima

Jyonanjima

Passage No.1

Keihinjima

New Sea Surface
Disposal Site

Tokyo PortTokyo Port Area (Plan)

7
Heiwajima

Tokyo Port Area (Current)

Omori

Check Point

Tama River

Haneda Airport

6Tokyo Bay
Materials : Tokyo Metropolitan Bureau of Port and Harbor(2012Edition) ©Tokyo Metropolitan Government

Changes of Disposal Sites
1 No.8 Site (Shiomi, Koto Ward)
2 No.14 Site (Yumenoshima, Koto Ward)

ʼ27

1955

'65

'75

'80

▼▼

▼

▼

ʼ62
ʼ57

3 No.15 Site (Wakasu, Koto Ward)

ʼ66
ʼ65

4 Central Breakwater Inner Landﬁll Site

ʼ74
ʼ73

amount 54.38 million tonnes
5 Central Breakwater Outer Landﬁll Site (Phase 2) Landﬁll(As of the end of 2012 ﬁscal year)

Oﬀshore Landﬁll Site
6 Haneda (Haneda
Airport, Ota Ward)

'90

'95

▼▼

2000（Fiscal year）
Area▼▼

Landﬁll amount 3.71 million tonnes

364,000 m

2

Landﬁll amount 10.34 million tonnes

450,000 m

2

Landﬁll amount 18.44 million tonnes

712,000 m

2780,000 m

2

1,990,000 m

2124,000 m

2

3,190,000 m

2

ʼ86

Landﬁll amount 12.3 million tonnes

ʼ77

Landﬁll amount 1.68 million tonnes

7 New Sea Surface Disposal Site'85
▼

ʼ84

ʼ91

Landﬁll amount 6.17 million tonnes ʼ98(As of the end of 2012 ﬁscal year)

Current town names are shown in ( ).

Landﬁll Site Management Oﬃce,
Bureau of Environment,
Tokyo Metropolitan Government

Chisaki, 3-chome, Aomi Koto-ku, Tokyo 135-0064
Phone: 03-5531-3701 Fax: 03-5531-3715
http://www.kankyo.metro.tokyo.jp/resource/landfill/

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平成25年11月

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