Download - The Treatment of Municipal Organic Waste In
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Bioenergy 2005 Trondheim 26.10. - 27.10.2005
TheThe treatmenttreatment ofof municipalmunicipalorganicorganic wastewaste in Europein Europe byby
anaerobicanaerobic digestiondigestion
Dr.Dr.--Ing. Dieter Jrgen KorzIng. Dieter Jrgen Korz
Ros Roca GroupRos Roca Group
Plochinger Str. 3Plochinger Str. 3
DD--73730 Esslingen73730 Esslingen
www.rosroca.dewww.rosroca.de
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Classification of presentation
Introduction Ros Roca Group
AD as waste treatment technology
Classification of AD systems
Current situation of AD technologies for organic waste in Europe
Example of digestion plant for biowaste treatment, Vsteras,Sweden
Summary
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Longtime experienc e of Ros Roca
in waste treatement
Composting
Digestion
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BiowasteBiowaste
(BW)(BW)Household wasteHouseho ld wa ste
(MSW)(MSW)
Orga nic frac tionOrga nic frac tion
Plastic , Metals etc .Plastic , Metals etc .
Recycling, energyRecycling, energy
productionproduction
Anaerob ic digestionAnaerob ic d igestion
Produc tion of b iogasProduc tion of b iogas
Produc tion o fProd uc tion o fheat, elec tric ityheat, elec tric ity
Prod uc tion of fuelProd uc tion of fuel
Landfill:Landfill:
Stab ilized produc tStab ilized produc t
Prod uc tion of c om post ?Produc tion of c om post ?
Prod uc tion of highProd uc tion of high
qua lity compostqua lity c ompost
Ag riculture, horticultureAg riculture, horticulture
etc.etc.
AD as waste treatment technology
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Energy balance of AD
(Specifications per ton of MSW organic material)
Biogas production: 120 150 mN3/t
CH4: 55 70 Vol.-%Biogas energy content: 700 900 kWh/t
Electricity production
(Co-generation): 250 360 kWh/tElectricity consumption: 80 125 kWh/t
AD plants work energy self-sufficient with a high surplusof electric and thermal energy.
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Classification of AD technologies
Partial materialPartial material flowflow digestiondigestion
PercolationPercolation systemssystems SystemsSystems withwith mechanicalmechanical solid / liquidsolid / liquid separationseparation
Total materialTotal material flowflow digestiondigestion
WetWet systemssystems (DS < 20 % )(DS < 20 % )
DryDry systemssystems (DS > 20 %)(DS > 20 %)
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Input Wet DryBiowaste X X
Organic fraction MSW X X
Organic industrial waste(Food and kitchen waste,slaughter house)
X ( X )
Manure X ( X )
Sewage sludge X ( X )
Agricultural products
(Renewable raw material)
X ( X )
Waste water X -
Application areasareas forfor wetwet andand drydry ADAD systemssystems
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Current digestion capacities in european countries
TheThe followingfollowing overviewoverview considersconsiders ADAD plantsplants for thefor the organicorganic
fractionfraction of MSW and BWof MSW and BW whichwhich areare underunder constructionconstruction oror inin
operationoperation inin westernwestern europeaneuropean countriescountries
SourcesSources of informations:of informations:-- TechnologyTechnology supplierssuppliers
-- PlantPlant operatorsoperators-- GeneralGeneral technicaltechnical literatureliterature
ADAD playsplays at theat the momentmoment aa minorminor rolerole in newin new easterneastern EUEU countriescountries
thereforetherefore nono detailleddetailled investigationinvestigation waswas mademade
NotNot consideredconsidered coco--digestiondigestion plantsplants ((manuremanure, biowaste), biowaste)
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1.478.000
2.770.500
4.248.500
0
800.000
1.600.000
2.400.000
3.200.000
4.000.000
Total Biowaste MSW
Capacity,
t
65 %35%
Current digestion capacities for BW and MSW in AD plants
(Situation october 2005)
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4.248.500
1.946.000 2.088.500
214.000
0
500.000
1.000.000
1.500.000
2.000.000
2.500.000
3.000.000
3.500.000
4.000.000
4.500.000
Total Dry Wet Others
Capacitytotal
,t
5 %46% 49%
Current digestion capacities in different AD systems for BW and MSW
(Situation october 2005)
C t di ti iti i diff t t i
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Current digestion capacities in different european countries
(Situation october 2005)
0
200.000
400.000600.000
800.000
1.000.000
1.200.000
1.400.000
1.600.000
GermanySpain
FranceItaly
Netherlands
Belgium
Switzerland
Sweden
Austria UK
Portugal
Finland
Norway
Ca
pacity,
t
49 22
6 8 3 4 18 8 5 1 1 2 2
Number of plants
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Example of AD plant for treatingbiowaste, silage and industrial organic
waste
The Vxtkraft digestion plant in
Vsters, Sweden
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General informations about the Vxtkraft-project
Input material:Biowaste 14.000 t/ySilage 5.000 t/yGrease trap removal sludge 4.000 t/y
Main targets of the project:Closed cycle of organic material from municipalities, industrieand agricultureSanitation of organic material according to ABPR requirements1774/2002Production of biogas as fuel for city busses, refuse collectorsand private carsProduction of high quality liquid and solid fertilizer for
agricultural use
The Vxtkraft digestion plant is part of the EU Agroptigasproject (www.agroptigas.com)
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Vxtkraft digestion plant, Vsteras (Schweden)
Pretreatment of organic waste
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Heat exchanger with heat recovery Sanitation tanks
Vxtkraft digestion plant, Vsteras (Schweden)Sanitation process
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Specific requirements of ABPR 1774/2002
Temperature > 70 C
Retention time > 1 h
Particle size < 12 mm
Sanitation temperature controlled under batch conditions
Utilization of calibratable temperature sensors
No bypass possibilities
Separation in dirty and clean areas
Vxtkraft digestion plant Vsteras (Schweden)
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Vxtkraft digestion plant, Vsteras (Schweden)Digester V=4.000 m3
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Vxtkraft digestion plant, Vsteras (Schweden)
Dewatering of digestate
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Summary
AD (AD (especiallyespecially wetwet system) is a flexible technology for differentsystem) is a flexible technology for different typestypes ofoforganicorganic materialmaterial
ADAD systemssystems produceproduce renewablerenewable energyenergy fromfrom wastewaste andand cancan bebe operatedoperated
energyenergy selfself--sufficientsufficient
AD is aAD is a contributioncontribution toto substitutesubstitute fossilfossil energyenergy sourcessources and toand to reducereduceCOCO22-- emissionsemissions
BiogasBiogas cancan bebe usedused toto produceproduce differentdifferent typestypes ofof energyenergy ((electricityelectricity,, heatheat,,fuelfuel))
HighHigh qualityquality compost iscompost is producedproduced from biowaste ADfrom biowaste AD plantsplants
LandfillLandfill directivedirective:: MassMass reductionreduction forfor disposaldisposal ofof organicorganic materialmaterial
ReductionReduction ofof landfilllandfill emissionsemissions (gas,(gas, leakageleakage water)water)
AD is aAD is a longlong experiencedexperienced and welland well provenproven technology totechnology to treattreat organicorganic
wastewaste
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Thank you very much for your attention
Ros Roca Internacional, S.L.Ros Roca Internacional, S.L.
Plochinger Str. 3Plochinger Str. 3DD--73730 Esslingen73730 Esslingen
Tel. +49 711 31059970Tel. +49 711 31059970
Fax +49 711 31059979Fax +49 711 31059979EE--MailMail [email protected]
VisitVisit ourour websitewebsite::
www.rosroca.dewww.rosroca.de