Dredged material treatment and disposal facilities
Transcript of Dredged material treatment and disposal facilities
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Heinz-Dieter Detzner
Dredged Material Treatment and Disposal Facilities SedNet Special Session:Managing the Elbe Estuary
9th October 2009
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Dredged Material Management
2Heinz-Dieter Detzner
E L B E
Dewatering Fields
Sand andSealing-material
CeramicProducts
METHAFeldhofe
Francop
Effluent
RelocationRelocation
TreatmentTreatment
Beneficial UseBeneficial Use
DisposalDisposalDredging ServiceDredging Service
AvoidanceAvoidanceHarbour
JV
EELLBBEE
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Sites for Dredged Material Treatment
3Heinz-Dieter Detzner
METHA
Treatment Facility
Disposal Site
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Why Need We Dredged Material Separation?
4Heinz-Dieter Detzner
in %
in %
CadmiumCadmium
002525
45456363
9090125125
180180250250
d in d in µµmm
100100
9090
8080
7070
6060
5050
4040
3030
2020
1010
00
LeadLead
002525
45456363
9090125125
180180250250
d in d in µµmm
100100
9090
8080
7070
6060
5050
4040
3030
2020
1010
00
in %
in %
CopperCopper
002525
45456363
9090125125
180180250250
d in d in µµmm
100100
9090
8080
7070
6060
5050
4040
3030
2020
1010
00
in %
in %
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Treatment – Dewatering Fields Moorburg
5Heinz-Dieter Detzner
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Operation Principle of the Dewatering Fields
6Heinz-Dieter Detzner
Drainage PipesDrainage PipesSilt SuspensionSilt Suspension
Settled SiltSettled Silt
Silt SealingSilt Sealing
Transport to theTransport to theSilt Deposit Silt Deposit
•• Area size of dewatering fields:Area size of dewatering fields: about 100 ha about 100 ha
•• Field size: 2 Field size: 2 -- 4 ha4 ha
•• Annual throughput:Annual throughput: 200.000 200.000 –– 300.000 m300.000 m³³
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Operation of the Dewatering Fields
7Heinz-Dieter Detzner
Dewatered Material readyDewatered Material ready for beneficial use orfor beneficial use or disposaldisposal
Handling of the material in Handling of the material in the beginning of the processthe beginning of the process
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Treatment – METHA Plant
8Heinz-Dieter Detzner
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Principle Flowsheet of the METHA Plant - Sorting and Separation
9Heinz-Dieter Detzner
Dredged Dredged MaterialMaterial
Stock basinStock basin
Cutter withCutter withprepre--screeningscreening
Coarse fractionCoarse fraction
Rotary screenRotary screen (10 mm)(10 mm)
SandSand Fine sandFine sand
Hydro cyclonesHydro cyclones(63 (63 µµm stage)m stage)
UpstreamUpstreamcurrentcurrentclassifierclassifier
SandSandDewateringDewateringscreenscreen
HydroHydro--cyclonescyclones(20 (20 µµm stage)m stage)
SpiralsSpirals
VacuumVacuumdewateringdewateringbeltbelt
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Main Components of the METHA Plant - Sorting and Separation
10Heinz-Dieter Detzner
Rotary screen (10 mm)Rotary screen (10 mm)
HydroHydro--cyclones (63 cyclones (63 µµm)m)
HydroHydro-- cyclone cyclone (20 (20 µµm)m)
Upstream Upstream currentcurrentclassifierclassifier
SpiralsSpirals
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Principle Flowsheet of the METHA Plant - Dewatering
11Heinz-Dieter Detzner
SiltSilt
ThickenerThickener
Agitated stock tankAgitated stock tank
Waste waterWaste waterTreatmentTreatment
DewateringDewatering1st stage1st stage
Screen belt pressScreen belt press DewateringDewatering2nd stage2nd stage
High pressureHigh pressurebelt pressbelt press
DewateringDewateringMembrane chamberMembrane chamber
filter pressfilter press
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Main Components of the METHA Plant - Dewatering
12Heinz-Dieter Detzner
High pressure High pressure belt pressbelt press
Membrane chamberMembrane chamberfilter pressfilter press
Filter belt pressFilter belt press
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Facts and Figures of the METHA Plant
13Heinz-Dieter Detzner
•• Development of the technology: 1987 Development of the technology: 1987 -- 1992 1992
•• CommissioningCommissioning: March 1993March 1993
•• Annual throughput: about 900.000 mAnnual throughput: about 900.000 m³³ ≅
450.000 tDS
•• Investment costs: about 70.000.000 Investment costs: about 70.000.000 €€ (1993)(1993)
•• Operation costs: about 13.000.000 Operation costs: about 13.000.000 €€/a/a 3.800.000 3.800.000 €€/a (Process)/a (Process) 4.000.000 4.000.000 €€/a (Staff)/a (Staff) 5.000.000 5.000.000 €€/a (Depreciation /a (Depreciation & DebtDebt ServicesServices))
•• Staff: 96 Staff: 96 employeesemployees
Until today the METHA plant is the largest dredged material Until today the METHA plant is the largest dredged material treatment plant worldwide treatment plant worldwide
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Sites for Dredged Material Treatment
14Heinz-Dieter Detzner
METHA
Treatment Facility
Disposal Site
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Disposal – Francop Disposal Site
15Heinz-Dieter Detzner
•• Area size:Area size: about 100 ha about 100 ha
•• Total capacity:Total capacity: 9.000.000 m9.000.000 m³³
•• Annual capacity:Annual capacity: 200.000 200.000 –– 400.000 m400.000 m³³
•• Installation Operation:Installation Operation: until 2013until 2013
•• Continued use:Continued use: Public ParkPublic Park
20072007
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Disposal – Feldhofe Disposal Site
16Heinz-Dieter Detzner
•• Area size:Area size: about 80 ha about 80 ha
•• Total capacity:Total capacity: 9.000.000 m9.000.000 m³³
•• Annual capacity:Annual capacity: 400.000 m400.000 m³³
•• Installation Operation:Installation Operation: until 2025until 2025
•• Continued use:Continued use: Public ParkPublic Park
20072007
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Construction Principle - Francop Disposal Site
17Heinz-Dieter Detzner
ClayClay
Alternating Layers Alternating Layers of Silt and Sandof Silt and Sand
Surface SealingSurface Sealingand Cover Systemand Cover System
Old Flushing FieldOld Flushing FieldEdgeEdge
SupportSupport
Intermediate Intermediate SealingSealing
Base SealingBase Sealing
500 m500 m
38 m38 m
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Construction Principle - Francop Disposal Site
18Heinz-Dieter Detzner
Edge Support Structure with Drainage SystemEdge Support Structure with Drainage System
Edge SupportEdge Support
Control Shaft withControl Shaft withCircle PipelineCircle Pipeline
ShaftShaft
Drainage LayerDrainage Layer
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Construction Principle - Francop Disposal Site
19Heinz-Dieter Detzner
Surface Cover SystemSurface Cover System
Cultivable SoilCultivable Soil
Drainage LayerDrainage Layer
Upper SealingUpper Sealing(3 Layers of Silt)(3 Layers of Silt)
0
1
2
3
4m
HDPEHDPE--Liner 2,5 mmLiner 2,5 mm
Base SealingBase Sealing( 3 Layers of Silt)( 3 Layers of Silt)
Drainage LayersDrainage Layers
0,6
2,1m
BaseBase SealingSealing
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Disposal – Monitoring Program
20Heinz-Dieter Detzner
NoiseNoise
DustDustGasGas
VegetationVegetation
Ground WaterGround Water
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Dredged Material - Beneficial Use
21Heinz-Dieter Detzner
Refilling ofRefilling of harbour basinsharbour basins
BricksBricks
Leight weight pelletsLeight weight pellets
Dike constructionDike construction
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22Heinz-Dieter Detzner
Contacts
HPA Hamburg Port Authority AHPA Hamburg Port Authority AööRRNeuer Wandrahm 4Neuer Wandrahm 4
20457 Hamburg20457 Hamburg
www.hamburgwww.hamburg--portport--authority.deauthority.de
HeinzHeinz--Dieter DetznerDieter DetznerTel.: +49 40 42847Tel.: +49 40 42847--23872387EE--Mail: HeinzMail: [email protected]@hpa.hamburg.de
Thank you for your attention!