16/10/20031st Padova - Fukuoka Seminar1 Current status on municipal solid waste amount and...

16/10/2003 1st Padova - Fukuoka Seminar 1

Current status on municipal solid waste Current status on municipal solid waste amount and composition in Japanamount and composition in Japan

Current status on municipal solid waste Current status on municipal solid waste amount and composition in Japanamount and composition in Japan

○Shinya Suzuki○Shinya SuzukiDepartment of Civil Engineering, Fukuoka University8-19-1, Nanakuma, Johnan-ku, Fukuoka, 814-0180, JapanE-mail: [email protected]

Department of Civil Engineering, Fukuoka University8-19-1, Nanakuma, Johnan-ku, Fukuoka, 814-0180, JapanE-mail: [email protected]

Contents1. Introduction 5. Rate of recycling 2. Law on solid waste management 5-1 Complexity of waste management3. Outline of solid waste flow 5-2 Variety of recycling

3-1 Direct material input 5-3 Definition of “Recycling”3-2 Treated condition of solid waste 6. Change of waste composition

4. Annual amount of MSW 6-1 Change of numbers on aerosol4-1 Composition of MSW in major cities

7. Conclusions

Contents1. Introduction 5. Rate of recycling 2. Law on solid waste management 5-1 Complexity of waste management3. Outline of solid waste flow 5-2 Variety of recycling

3-1 Direct material input 5-3 Definition of “Recycling”3-2 Treated condition of solid waste 6. Change of waste composition

4. Annual amount of MSW 6-1 Change of numbers on aerosol4-1 Composition of MSW in major cities

7. Conclusions


1. Introduction1. Introduction 1. Introduction1. Introduction

Population-127,000,000 person(2 times)

Area-380,000 km2

(almost same)

Population-127,000,000 person(2 times)

Area-380,000 km2

(almost same)

“Municipal Waste”(50 Mt/year)

Business wastes

General wastes

Industrial waste(400 Mt/year)

-each municipality-mostly incineration


2. Law on solid waste management 2. Law on solid waste management Securing restriction of the generation of wastes and appropriate recycling and disposal of wastes.

Securing restriction of the generation of wastes and appropriate recycling and disposal of wastes.

Promoting restriction of the generation of wastes and reuse and recycling of wastes.

Promoting restriction of the generation of wastes and reuse and recycling of wastes.

Recycling of containers and packaging was made obligatory of business parties that produce/use containers and packaging.

Recycling of containers and packaging was made obligatory of business parties that produce/use containers and packaging.

Collection and recycling of waste electric household appliances was made obligatory of business parties that produce/sell electric household appliances.

Collection and recycling of waste electric household appliances was made obligatory of business parties that produce/sell electric household appliances.

Sorted dismantling of a building and recycling of construction wastes were made obligatory of parties who receive orders for building construction.

Sorted dismantling of a building and recycling of construction wastes were made obligatory of parties who receive orders for building construction.

Restriction of the generation of leftover foods and recycling of foods were made obligatory of business parties that produce / sell foods, restaurants, etc.

Restriction of the generation of leftover foods and recycling of foods were made obligatory of business parties that produce / sell foods, restaurants, etc.

The National Government, etc., takes initiative in promoting procurement of reproduced products, etc.

The National Government, etc., takes initiative in promoting procurement of reproduced products, etc.


Import（ Resource, Product）

Hidden flow

(foreign,with import)

Mined resource,(domestic)

Direct Material Input; DMI

O2, H2O

Processing in business activity

Net Additions to Stock;

NAS

Export

Direct Processed Output;DPO

Hidden flow(domestic)

Total Domestic Output;TDO

Stock

3. Outline of solid waste flow3. Outline of solid waste flow

Total Material Required; TMR

Hidden flow(domestic)

(Source: Ministry of Environment)


3-1. Direct material input 3-1. Direct material input Biomass

0

50

100

150

200

25019

80

1990

2000

(Mt/ year) Mineral

0200400600800

1000120014001600

1980

1990

2000

(Mt/ year)

Metal

020406080

100120140160180

1980

1990

2000

(Mt/ year)

Domestic Foreign

Fossil

0

100

200

300

400

500

600

1980

1990

2000

(Mt/ year)

Domestic Foreign


3-2. Treated condition of solid waste 3-2. Treated condition of solid waste


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Biomass Mineral Metal Fossil Total

"Restock"Recovery TreatmentLandfill


4. Annual amount of MSW 4. Annual amount of MSW

40,000

45,000

50,000

55,000

60,000

1990

1991

1992

1993

1994

1995

1996

1997

1998

1999

(100

0 t/

year

)

800

850

900

950

1,000

1,050

1,100

1,150

1,200

(g/p

erso

n/da

y)

Total amount Daily amount per person



4-1. Composition of MSW in major cities 4-1. Composition of MSW in major cities

(Source: Japan Environmental Sanitation Center)

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Sapp

oro

send

ai

Toky

o

Nag

oya

Kyot

o

Kobe

Others

Plastics

Rubber andleatherMetal

Glass

Incombustible,Pottery, StoneTextile

Garbage

Wood, Splits,Straws, GrassPaper

Bio

mas

s


5. Rate of recycling5. Rate of recycling


0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,00019

91

1992

1993

1994

1995

1996

1997

1998

1999

2000

(Mt/ year)

0

2

4

6

8

10

12

14

16(%)

Recovery by localcollectionDirect recovery

Recovery aftertreatmentRate of recovery


Site for waste collection

Site for recycling

(Private sector)

(residential)

(Self reducing)

(For sell etc.)

Recyclable

Recyclable

Large scale waste

Incombustible

Combustible

Recyclable

Recyclable

Recyclable

Generation Dispose Collection/Transportation Treatment

Com

pan

y

Site for waste

MunicipalWaste

Mu

nicip

ality

Municipality

Incineration plant

Crushing facility

Crushing facility

Sorting facility

Sorting facility

Sorting facility

Sorting facility

Sorting facility

BusinessWaste

5-1. Complexity of waste management 5-1. Complexity of waste management


5-2. Variety of recycling 5-2. Variety of recycling


Collection/Reproduction

Reproduction (wide sense)

Recycling (wide sense) = Recovery

Reproduction (narrow sense)

CollectionPartialreuse

Recycling (narrow sense)

Materialrecycle

Chemicalrecycle

Thermal recycle

5-3. Definition of “Recycling” 5-3. Definition of “Recycling”


0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002Fiscal Year

OthersFurnitureHome electricsMetalsPlasticsGlassesSoils, tilesPack for collectionGrassesPapers

1st change1st change

Home electricsHome electrics

2nd change2nd change

6. Change of waste composition6. Change of waste compositionIncombustibles in Fukuoka cityIncombustibles in Fukuoka city


0.0

50.0

100.0

150.0

200.0

250.0

300.01s

t2n

d3r

d4t

h1s

t2n

d3r

d4t

h1s

t2n

d3r

d4t

h1s

t2n

d3r

d4t

h1s

t2n

d3r

d4t

h1s

t2n

d3r

d4t

h1s

t2n

d3r

d4t

h

1996 1997 1998 1999 2000 2001 2002

(Num

ber

of c

onta

iner

s/t)

6-1. Change of numbers on aerosol 6-1. Change of numbers on aerosol

Incombustibles in Fukuoka cityIncombustibles in Fukuoka city


Solid waste flow in JapanSolid waste flow in Japan

7-1. Conclusions7-1. Conclusions

From foreign countries-Half of biomass-Most of metal, fossil

From foreign countries-Half of biomass-Most of metal, fossil

Treated condition-Treatment

-Biomass, fossil-Recovery

-Mineral, metal

Treated condition-Treatment

-Biomass, fossil-Recovery

-Mineral, metal

Municipal solid waste Municipal solid waste

Annual amount (10 years)-50,000,000 (t/year)-1,100 (g/person/day)

Annual amount (10 years)-50,000,000 (t/year)-1,100 (g/person/day)

Composition (in Major cities)-80% biomass

-Papers, raw garbage

Composition (in Major cities)-80% biomass

-Papers, raw garbage


RecyclingRecycling

7-2. Conclusions7-2. Conclusions

Annual amount-Increased

Annual amount-Increased

Problems of data accumulation-Self reducing-Mixing of business waste-Insufficient data

-private sector

Problems of data accumulation-Self reducing-Mixing of business waste-Insufficient data

-private sector

Change of waste composition Change of waste composition

Ex. Incombustibles (Fukuoka)-Reduced dramatically-Changed dramatically

Ex. Incombustibles (Fukuoka)-Reduced dramatically-Changed dramatically

Numbers of aerosol-Increased dramatically

Numbers of aerosol-Increased dramatically

Variety of recycling-Separate collection system

-Quality

Variety of recycling-Separate collection system

-Quality

Definition of recyclingDefinition of recycling

More data accumulation, analysis, strategy construction, ...More data accumulation, analysis, strategy construction, ...


Thank you for your attention.Thank you for your attention.

16/10/20031st Padova - Fukuoka Seminar1 Current status on municipal solid waste amount and...

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