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

Photographed on February 26, 2014

Tokyo Metropolitan Government Bureau of Environment

Central Breakwater Inner Landﬁll Site

Layout117416 1418Tokyo Port
Seaside Road

Landﬁll area (waste)

Approx. 78 ha

1210

Central Breakwater Outer Landﬁll Site

91263

Phase 1 (dredged soil, soil from construction
sites)
78A BlockCentralBreakwater
OuterLandﬁll Site
(Phase 1)
115 haApprox. 12.3 million tonnes

515211Approx. 195 ha

Landﬁll volume

13
9Area

20 ha

Landﬁll area

CentralBreakwater
Outer Landﬁll Site
(Phase 2)
199 haApprox. 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-Size⑩ Wharf (marine transport unloading

Breakwater Landﬁll Joint Oﬃce
③ Wastewater Treatment Plant No. 1facility)

Waste⑮ Chubo Incombustible Waste Processing Center④ Landﬁll-Gas Utilization Facility⑪ Chubo-Ohashi Bridge⑤ Wastewater Treatment Plant No. 3⑫ Tokyo Bayside Wind Power Plant⑯ Chubo Ash Melting Facility(Tokyo Kazaguruma)⑥ Nakashio-bashi Bridge⑦ Facility to Wash Oﬀ Soil

Double Steel-tubing Sheet Pile (Outer Landﬁll Site)
To Sewage
after Processing
Fence to prevent
waste from Scattering

RainfallCircuit Pipe

Wastewater ※Coating Stones

Foot Protection Stone

Packing Sand
Replacement Sand

Sea Bottom（Clay layer）

Receiving Reservoir(Pump well)
Landﬁll Site
(Stratum of waste)
Water Shielding
Steel Sheet Pile

Steel-tubing
Sheet Pile

Ground Improvement(Sand Compuction Pile)

Seabed (Mixed Layer Sand, Gravel and Clay)※Wastewater is rainwater that seeped through the stratum of waste to become polluted water.

1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 2,820,000 tonnes in 2013.
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
536,000 tonnes

Incombustible
Waste23 Wards
Total Waste Volume

Metalcollection

New Sea Surface Disposal Site
Central Breakwater Outer
Landﬁll Site

Transfer
Large-SizeWaste

Intermediate
Processing（(1)＋(2)＋(3)）
2,820,000 tonnes(2013)

Industrial waste(from small and medium-sized businesses)

Metal/Aluminumcollection(1)360,000
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)130,000
tonnes(2013)

Incineration Plant(Photo: Clean Association of TOKYO23)

Landﬁll

Covering

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

Covering

Waste
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
Others 2%

Electricity
Expense 8%

Bureau of Sewerage
Water Recycling Centerat Sunamachi

Volume of wastewater treatment

Chemicals
Expense10%

2.4 billion yen2013

Operation
Management
Consignations 18％Sewerage
Charges48%

Tokyo Bay

Quality of treatment water

New Sea Surface A 5％

ｐH……7.5 (Sewage Discharge Standards：5〜9）No.15
Site 8%

RepairExpense 13%

Treated Sewage

Inner
Landﬁll
Site 14%

Nitrogen…29mg/L （Levels Agreed with the Bureau of Sewerage：120）
COD ……73mg/L （Levels Agreed with the Bureau of Sewerage：150）

3.2 million m2013

3OuterLandﬁllSite 53%

Raw Water Quality at Treatment Plant 3
ｐH ……………………………… 8.1
Nitrogen ………………………… 434mg/L
ＣＯＤ …………………………… 322mg/L

New Sea
Surface B 20%

4

Landﬁll Site Transition(Approx. 1994)

Garbage and incombustible
waste are used as landﬁll(At Present)

Aft iintermediate
Aftertdi t processing,iwastet isi landﬁl dﬁll
lleddat the New Sea Surface Disposal Site.

Trend of Disposed AmountTenthousand tonnes
400

Landﬁll site performance(ten thousand tonnes)

New Sea Surface (B Block)
New Sea Surface (A Block)350

Haneda Oﬀshore
Central Breakwater Outer Landﬁll Disposal Site

300

Central Breakwater Inner Landﬁll Site

Performance
60
value

No.15 Site (Wakasu)
No.14 Site (Yumenoshima)

250

Fiscal 2011 2012 2013
Year5654

Others
200
150
100
500
1964

1970

1980

1990
Year (Western Calender)

2000

2010

Energy Eﬀective Utilization

2013

Environment Learning

At the Central Breakwater Inner and Outer Landﬁll Sites,
electricity is generated using gas and natural sunlight.

Landﬁll-Gas Utilization Facility (Micro gas turbine)

Photovoltaic Generation System

Power generation capacity (Maximum)
275 kWGas 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)Power generation capacity
Solar array panel

20 kW

Social studies ﬁeld trip of elementary
school students

4.0 m×18.2 m×2 sets

Module178.6 W/module×112 modules

Quality

Polycrystalline silicon(2007 Ministry of the Environment granted project)

5〔〕The number of visitors in 2013 was approx. 38,000
Elementary and Junior high school students totaledapprox. 33,000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

・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.

General Waste

Waste Type・Industrial waste produced by small and medium-sized businesses within MetropolitanTokyo.

Industrial Waste

・Waste that has already undergone intermediate treatment is accepted up to a ﬁxed
volume.

Waste from Public
Facilities

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

Earth and Sand Type・Dredged soil is produced from streams and rivers within Metropolitan Tokyo and Tokyo
ports.

Dredged Soil・Dredged soil that cannot be used for the upkeep of rivers, canals or harbors is accepted.

Soil Produced inConstruction Work, etc.

・This soil is used for the upkeep of the landﬁll site and as soil covering for waste.

Caisson Type Outer Shore Protection（New Sea Surface Disposal Site）
To Sewage
after Processing

Rainfall※1

Wastewater

Circuit Pipe

100 m of moderate-sloped bank and shallow bottom

Fence to prevent
waste from Scattering

Landﬁll Site
(Stratum of waste)

Caisson ※2

Coating Stones※3

Receiving Reservoir(Pump well)
Water Shielding Sheet

Rear Filling
Soil

Replacement Sand

Riprap ※4

Sea Bottom（Clay layer）

Ground Improvement(Sand compaction pile)

Steel Sheet Piling

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

※3

Rear Filling Soil: Earth and sand that is placed behind thecaisson revetment.
※4 Riprap: Rock that is used to support the caisson revetment.
6

Geographical Locations of Landﬁll Sites
Monzen Nakacho
Nihonbashi
Yurakucho
Hatchobori

Kiba

Arakawa River

ToyochoGinza

Etchujima

Minamisuna

Tsukiji
Shinbashi
Shinsuna

12Toyosu

Hamamatsucho

Kasai

TatsumiHarumi PierTamachi

Nishikasai

Shinonome

Toyosu 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 Breakwater

7Heiwajima

Showajima

Jyonanjima

Passage No.1

Keihinjima

New Sea Surface
Disposal Site

Tokyo PortTokyo Port Area (Plan)

Tokyo Port Area (Current)

Omori

Check Point

Tama River

Haneda Airport

6Tokyo Bay
Materials : Tokyo Metropolitan Bureau of Port and Harbor(2014Edition) ©Tokyo Metropolitan Government

Changes of Disposal Sites 1955▼
1 No.8 Site (Shiomi, Koto Ward)ʼ27

2 No.14 Site (Yumenoshima, Koto Ward)

'65
▼

'80

▼

▼

'85
▼

'90
▼

'95
▼

2000 （Fiscal year）
Area
▼
▼

Landﬁll amount 3.71 million tonnes

364,000m

2

ʼ66

Landﬁll amount 10.34 million tonnes

450,000m

2

ʼ65 ʼ74

Landﬁll amount 18.44 million tonnes

712,000m

2

ʼ73

ʼ86 Landﬁll amount 12.3 million tonnes

780,000m

2

1,990,000m

2124,000m

23,190,000m

2

ʼ62
ʼ57

3 No.15 Site (Wakasu, Koto Ward)'75

4 Central Breakwater Inner Landﬁll Siteamount 54.5 million tonnes ʼ77
5 Central Breakwater Outer Landﬁll Site (Phase 2) Landﬁll(As of the end of 2013 ﬁscal year)

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

Landﬁll amount 1.68 thousands tonnes ʼ84

7 New Sea Surface Disposal Site

ʼ91

Landﬁll amount 6.59 million tonnes ʼ98(As of the end of 2013 ﬁscal year)

Current town names are shown in ( ).

Landﬁll Site Management Oﬃce,Bureau of Environment,
Tokyo Metropolitan GovernmentChisaki, 3-chome, Aomi Koto-ku, Tokyo 135-0064
Phone: 03-5531-3701 Fax: 03-5531-3715
http://www.kankyo.metro.tokyo.jp/resource/landfill/

平 成 26 年 度
登録第４号
平成27年３月

石油系溶剤を含まないインキを使用しています。