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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
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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
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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
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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)
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Provisos developing policy
p ( )
Forest in Town(100 mil trees in Environmental city)
Yahata smart community plan, etcDeveloping Environment for district and earth