Treatment of Municipal Wasteby Kitakyushu City

City of Kitakyushu Environment Bureau

Awarded Pictures: Photo Contest of Natural Environment, 2004 and 2005

1

City of Kitakyushu Environment BureauResource Circulation Division Manager

Yoshinori Hamasaki

Process flow of Municipal Waste

Final Disposal&

effective utilization

Final Disposal&

effective utilizationT t tiT t ti

IntermediateTreatment

&Recycling

IntermediateTreatment

&RecyclingCorrectionCorrection

DischargeDischarge

<Treatment process>

<Treatment process>

<Treatment process>

Landfill

<Treatment process>

Landfill

utilizationutilizationTransportationTransportationy gy gCorrection

& carriage Correction & carriage

<Collection<Collection・Incinerator・Melting・CrushingS ti

・Incinerator・Melting・CrushingS ti

・Landfill・Landfill

<Effective utilization><Effective utilization>

<Collection method>

・At station・At point

<Collection method>

・At station・At point

<Approach at Home>

G

<Approach at Home>

G ・Sorting・Composting・Methane generation

・Sorting・Composting・Methane generation

utilization・Thermal recovery& Supply・Power generation & Supply

utilization・Thermal recovery& Supply・Power generation & Supply

At point・By door-to-doorAt point

・By door-to-door・Group collection for recycling

・Composting

・Group collection for recycling

・Composting generationgeneration & Supply・Recycling resources・Material for Civil

& Supply・Recycling resources・Material for Civil

…

…

p gby kitchen refuse

p gby kitchen refuse…

2

constructionconstruction

Features of Treatment of Municipal WasteConst. ＆

Operating Cap Of Amount of RecoveredMaintain

Cost

Operating Technology

Cap. Of landfill

Amount of recycle

Recovered Energy

Concerning Subjects

△

・Short time of treatment・Need wastewater treatment

Sanitary landfill many△

Scavenger×

Need wastewater treatment after discontinued・Generate of Methane (Fire, Global warming

LOw

LOw

Methane fermentation・Power

Reduce kitchen waste

○Methane/Compost

○Low heat &

Power

・Separate treatment for plastics・Long period of time to treat ⇒

Large facility・Low calorific generated gas

w w

g g

Incineration(8 hr Operation)

Appox.１/６

△Iron, etc

×・Need flu gas treatment system

｜ ｜

Incineration(16 hr Operation)

Appox.１/６

△Iron, etc.

△

Only heat

・Need flu gas treatment system

Incineration/Pow Appox ○ ・Need flu gas treatment systemIncineration/Power generation(24 hr Operation)

Appox.１/６

△Iron, etc.

Many of Heat & Power

・Higher maintenance cost for Facility

Incineration/Melti Appox ・Need flu gas treatment systemHi Hi

3

Incineration/Melting/Power generation(24 hr Operation)

Appox.１/2or

Zero

○Slug/Metal

○Many of

Heat&Power

Need flu gas treatment system・Higher maintenance cost for

Facility

Transition of Waste Treatment in Kitakyushu CityYear 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010

PolicyC

o individual collection

Treatment intensive type （All collection, All incinerated, All landfill Recycle type Recycling-orientedolle

ctio

n &

Car

Dust boxPartialy

H5～ Separation for cans & bottlesH9～Recycling of PET bottle

Waste bin

Plastic bucketCollection at station by Poli-sack (Free charge) Charged sack Review

rriageIn

t（I

H12～Separation paper pak, trayH14～Separation Fluorescent,

H18～Spa-plastic

Fix bed, batch type All contentious（240t/day×3f

term

ediate

nclin

ation)

Hiakari facility (150t/d x 3furnac, Heat supply) Renew (200t/d x 3 furnace, Heat supply, PowerSaiko facility(225t/8h)

Shinmoji facility（300t/day x 2 furnace/ P generation Reconstruction furnace,molt heat, generation）

Moji facility (60t/8h)

Renew (270t/d x 3 furnace, s. waste powerYahata facility (200t/8h)

Wakamatsu (facility (70t/8h)

Kougasaki facility (200t/D×3 furnace, Power, Heat）

Fi

Ohama landfill Toyooka landfillJizoumen landfill

Soumi landfill Shinmoji waste treatment

Ikawa landfill

Sanitary landfill＋Landfill after incineration Landfill after incineration

Wakamatsu (facility (70t/8h)

nal D

isposa

Ohama landfill Toyooka landfill

Koishi landfill Kitaminato landfill

Shi I landfill

LandfillSakamizu landfill

Yoshida landfill

Soumi landfill

Hibikinada waste treatment facility

Shinmoji waste treatment

Hibikinada-nishi west treatment facility

Ji h l dfill

4

l

Yokota landfill

Onkai landfillNakayaike landfill

Eikenmaru landfill

Matobaike landfill

Jinnoharu landfill

Kogetsu landfill

Designated bags of householdDesignated bags of household--related wasterelated waste

Waste of Kitakyushu City & Direction of Resources

Ho

m

Power・

Thermalm

e garb

ag

I i ti L dfill

Re

ge

Cans &

Bottles

Products

Home garbage Station Incineration Landfill

Bottles,ecycling

r

Bottles

Station Can/Bottle Recycle Center

REC

Re-ＰＥＴNeck tie

PET ＢｏｔｔｌｅStation

Steel product

resou

rces

CYC

Neck tie

Containers &Packaging

PlasticStation

Plastic Recycling

Center

Cokes,

Pallet

Box for Food tray, Paper Pak

s

Stock

Yard

LER

Toilet paper

R

6

Collection box for

Florescent

Re-Florescent

Waste Treatment Facility in Kitakyushu City

Hiagari bulky garbageresources cente

Hibikinada-seibu landfillHiagari transfar station

Hiagari environmental center Hiagari plant

Wakamatsu-ku Tobata-kuHiagari can and botttle

Y h t

Kokura kita-ku

Moji-ku

U b E

Hiagari can and botttlerecycling centerHonjo recycle plazza

Yahata nishi-ku Yahata

higashi-kuKyushu Expressway

Urban Expressway

Hiagari recykle plazzaHonjo can and bottlerecycling center

Kokura minami-ku

7

Kogasaki plant Shinmoji plant

Kogasaki environmental center

Shinmoji Environmental center

Waste Incineration Facility in Kitakyushu CityShinｍoji Facility Hiagari Facility Kougasaki Facility

Time 2003.12～2007.3 1987.9～1992.3 1993.10～1998.6

Cost 22.9 billion yen 125 billion yen 345 billion yen

Type Shaft type Gasified melting furnaceContinuous combustion Stalker

furnaceContinuous combustion Stalker furnace

capacity

240ｔ/day x 3 units＝720t/dayIncineration cap:108,081ｔ※

200ｔ/day x 3units＝800t/dayIncineration cap:104,798t※

270ｔ/day×3units＝810t/dayIncineration cap:154,782t※

Flu gas treatme

nt

slaked limeBag filter (Dry type)Splaying of ammonia waterCatalytic reactor

slaked limeBag filter (Dry type)Wet-scrubber (caustic soda)Splaying of ureic water

slaked limeBag filter (Dry type)Splaying of ureic water

Generation 23 500KW Generation 6 000k Generation 36 340k

U

Po

wer g

Generation：23,500KWGenerating cap：85,656MWh※

Generation：6,000kwGenerating cap：23,032MWh※

Generation：36,340kwGenerating cap：77,047MWｈ※

Self consumptionSupply ・Shinmoji Environment

Self consumptionSupply ・Hiakari Treatment

Self consumptionSupply ・Kougosaki

Environment CenterUse o

f waste

gen

eration

Center・Kyushu Power Co.

Supply amount：46,872MWh※

Center・Kyushu Power Co.

Supply amount：9,460MWh※

・Kougosaki night soil reception facility・Kougosaki treatment Center・Kyushu Power Co.h

eat

ySupply amount：44,342MWh※

Ste

am

Supply hot-water:Shinmoji Environment center

Air-condition & Hot-water supplyDraying of sludge at Hiakari Treatment Center

Air-condition & Hot-water supplyHot water supply to Kougosaki Environment Cent

8

m

Air conditioning for central wholesale market

Heat supply to Jinbara District

※Data: as of 2009

Flow diagram of Moji FacilitySteam turbine

Generator

Self consumptionElectricTruck scale

Cokes /Lime

Self consumptionTo affiliate co.

To electric co.Lo Steam Self-cons

To affiliate co.Stack

Combustion Chamber Boiler Catalytic

ReactorDust

collectorGasified Gas temp

C lliFilter type

D t

slaked Lime

Platform

Gasified Meltingfurnace

ControllingSystem

Dustcollector

W t

Water crushingSystem

Fly ashForcing air blower

Inducedair blower

R k

Anmoia

Wastepit

System

Slug MetalRemarksWaste flow

Air flow

Flu gas flow

Final disposalEffective

Utilization

9

Melting / ResourceRecycling process Energy recovering process Flu gas treatment processMelted matter flow

Ash flow

Steam flow

Basic Concept of Waste separation & Recycling in Kitakyushu City

①① Easy understanding by citizen Easy understanding by citizen ・Separation category by citizen should not be incremented

②② Develop recycling technologyDevelop recycling technology & Demand of & Demand of p y g gyp y g gyRecycled productsRecycled products

・No resources are recycled without recycling distributionNo resources are recycled without recycling distribution

③③ Efficiency including costsEfficiency including costsMaximum use of private collection root and/or civic・Maximum use of private collection root and/or civic collection root

・Collection cost is increased if separation category by・Collection cost is increased, if separation category by citizen is increased

・If less discharge items such as pan and kettle is going to

10

If less discharge items, such as pan and kettle is going to be separated, the efficiency becomes lower.

Recent record of the collected amount Recent record of the collected amount of householdof household--related wasterelated waste

householdhousehold--related wasterelated waste

FY2009FY2003

178,514 ｔ

506 /d

253,216 ｔ

506g/day per person

705g/day per person

Achieved waste reduction by 28% exceeding initial target 20% !!

Reduction of waste treatment cost and future challenges

Incineration and other treatment

Collection and transportation

¥7.7 billion

¥8.4 billionFY 2003

Incineration and other treatment

Collection and transportation

¥8.4 billion

¥6.7 billionFY 2007

Incineration and other treatment

Collection and transportation

¥7.9 billion

¥5.9 billion

Total amount¥16.1 billi

FY 2003(Baseline

year)

Total amount¥15.1 billion

(After the

revision)

FY 2009

Total amount¥13.8 billi

2 3 billi

billion billion billion

F Ch ll (f i h h ld b b )

Reduction by 2.3 billion yen of the cost for waste treatment

Future Challenges(from waste in household garbage bags)

GarbageOthers36 0％ ‘Resources’ has been treated g

47.6％36.0％

R l bl

Resources has been treated as ‘garbage’.-Reduction of ‘Raw Garbage’-Improvement of Waste SegregationRecyclable

materials16.4％

Improvement of Waste Segregation

Transition of Environmental Policy in Kitakyushu City

Operation of Yahata Waste water Fly ashGrown as steel city

Critical pollution

1901

1950

Movement antipollutionMeasure by City

Pollution control, antipollution regulation

Concluded with enterprises

Measure by enterprisesImprove production processContamination remove facility

Plantation Low pollution process

1960s～

Pollution

Established KITA in 1980

Concluded with enterprises Plantation, Low pollution process

Cooperation to solve environmental issues A d 21

Conquer pollution

1980s～

controlpolicy

District

Environment protection& Industrial developing

Project of Kyushu Eco-town(1998~）

environmental issuesfor overseas countriesInternational cooperation in Environment (1988s)

Agenda 21Formulated by Kitakyushu in

1996

Reduction of municipal waste(2000 2006)

District-diplomacy

policy

Recycling-orient-Society

World Environmental City

(2000,2006)By first government decreed Charging system & set of fee Location of PCB treatment

2001Kitakyushu Initiative written on

Johannes Burg official paper (2002)

Practical activity

Societypolicy

Sustainable society developing

2000s～

yGood design(2004）

yImplement & Evaluate

society developingpolicy

Low carbon society Developing policy

Provisos developing

Selection of Environmental Model CityGreen frontier plan (2009）

13

Provisos developing policy

p ( ）

Forest in Town（100 mil trees in Environmental city)

Yahata smart community plan, etcDeveloping Environment for district and earth