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We are all making efforts to deal
responsibly with our resources and
with nature. Much has already been
achieved in this respect.
Presentationof
Waste incineration technologiesfrom
Lentjes GmbH
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1. Company and Plant References
2. Technologies3. Summary
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1. Company and Plant References
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Lentjes?
A few words about the company …
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Lentjes GmbH
Ø Lentjes is a process lead international EPC turnkeycontractor with a worldwide network in industrially activemarkets
Ø Lentjes is a pure engineering company with in-houseproprietary technologies and processes for EfW plants (gratesystems, steam generators, FGC systems)
Ø Over 80 contracts in the waste to energy sector since 1990
Ø Wide international experience
Ø Involvement in early stage regarding planning questions
Ø Local presence in key markets ensures deliverability
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Ø Engineering (for all combustion systems, boilers, FGC
processes, civils, water-steam-cycle, electrical, I&C, etc.)
Ø Procurement / International Sourcing
Ø Construction
Ø Project Management
Ø Quality Assurance / Health & Safety
Ø Construction ManagementØ Training, Commissioning, Performance Testing
Turnkey EPC Expertise in
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GEA Group AktiengesellschaftTurnover €4.5 billion Employees 17,500
ProcessEquipment
MechanicalSeparation
Dairy Farm
Systems
ProcessEquipment
ProcessEngineering
ProcessEquipment
Energy
Technology
Customised
Systems
Refrigeration
Air Treatment
PlantEngineering
Lentjes GmbH
Turnover ~ €350 m
350 employees
Lurgi AG
Zimmer AG
Lurgi Bischoff GmbH
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Latest News ….
Ø GEA has decided to concentrate on the component business,
thus the Plant Engineering Division has been sold
Ø Lentjes has recently found new owner in ATEC Industries
Ø ATEC Industries will continue and strengthen all former
Lentjes’ activities in the future
Ø Lentjes will remain a strong and reliable partner in the
‘Energy from Waste’ business
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Headquarters Ratingen / Germany
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Lentjes Portfolio
Energy Division
Ø Fossil Fired Power Plants
Ø Combined Cycle Power Plants
Ø Flue Gas Desulphurisation
Environment Division
Ø Hazardous Waste Incineration
Ø Biomass to Energy
Ø Sewage Sludge Incineration
Ø Energy from Waste
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Lentjes Product Portfolio
Fossil Fired
Power Plants
Circulating FluidisedBed
Combined CyclePower Plants
Co-Generation andIndustrial Power
Plants
Flue Gas Cleaning
Power Plants
DesulphurisationWet - FGD
Seawater - FGD
CFB - FGD
Ammonia - FGD
Denitrification
SCR - Technology
Treatment Plants
for Industrial
Waste/ResiduesSewage Sludge
Rotary Kiln
Fluidised Bed
Flue Gas Cleaning
Biomass to Energy
Plants
Circulating FluidisedBed
Grate Systems
Flue Gas Cleaning
Energy from
Waste Plants
Grate Systems
Circulating FluidisedBed
ROWITEC®
Flue Gas Cleaning
Energy Division Environment Division
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Technologies of Energy and Environment Divisions
Energy
CCPP
CFB
Flue Gas Desulphurisation
Environment
Energy-from-Waste and Biomass Plants
Sewage Sludge Incineration
Hazardous Waste Incineration
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GAVI Wijster / NL, Water cooled grate
3 x 20 t/h
Taoyuan / ROC, Roller Grate
2 x 28 t/h
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Madrid / E, ROWITEC
3 x 9 t/h
Sleco / B, ROWITEC
3 x 20,8 t/h
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Lenzing / D, CFB
110 MWth
Premnitz / D, CFB
60 MWth
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Ebenhausen / D
2 x 50.000 t/a
Bayer AG Dormagen / D
45.000 t/a
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Dordrecht / NL
3 x 12 t/h, 1 x 24 t/h
Crossness / UK
2 x 3,5 t/d, 5,2 MWel
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SITA Kirklees, Huddersfield / UK
1 x 17 t/h
Shell Green, Manchester / UK
1 x 5,7 t/d Extension
Target Price Contract Award 2005
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WRG Allington, Kent / UK
3 x 21,4 t/h
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Colleferro / I
Wuppertal / D
Budapest / H
Madeira / P
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Recent Plant References Energy-from-Waste
Start-up Plant Grate System Throughput LHV (kJ/kg) Waste FGC System
2001 Taoyuan South / ROC Roller Grate 2 x 675 t/d 9,600 MSW Semi-dry
2002 Kirklees / UK Recipr. Grate 1 x 410 t/d 9,200 MSW Semi-dry
2002 Madeira / P Roller Grate 2 x 192 t/d 7,800 MSW Semi-dry
2002 Terni / I Reci. Grate w/c 1 x 300 t/d 15,000 SRF Semi-dry
2002 San Vittore / I Reci. Grate w/c 1 x 300 t/d 15,000 SRF Semi-dry
2002 Colleferro I+II / I Reci. Grate w/c 2 x 300 t/d 15,000 SRF Semi-dry
2002 Premnitz / D CFB 1 x 60 MWth 14,000 SRF Circoclean
2003 Powergen / UK FB 1 x 530 t/d 5,200 Paper Sludge Fabric Filter
2003 Strongoli / I CFB 2 x 20 MWel 11,100 Biomass Dry (BiCar)
2004 Budapest / H Roller Grate 4 x 360 t/d 8,500 MSW Semi-dry
2005 Cantabria / E Roller Grate 1 x 288 t/d 11,720 MSW Circoclean
2006 Sleco / B ROWITEC 3 x 495 t/d 8,30050 % SRF
50 % Sludge
Circoclean +
Scrubber 2006 Allington / UK ROWITEC 3 x 513 t/d 9,200 MSW Circoclean
2006 Frankfurt / D Recipr. Grate 4 x 480 t/d 10,300 MSW Circoclean2008 Casteltermini / I Reci. Grate w/c 2 x 413 t/d 12,560 SRF Dry (BiCar)
2008 Augusta / I Reci. Grate w/c 3 x 413 t/d 12,560 SRF Dry (BiCar)
2008 Palermo / I Reci. Grate w/c 3 x 552 t/d 11,550 SRF Dry (BiCar)
2008 Manchester / UK FB 1 x 140 t/d 12,600 (DS) Sludge Wet multi-stage
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Plant References Energy-from-Waste
74 Lines in 43 Plants
equivalent to
1.107 tph or ~8,85 mio tpy
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2. Technologies
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Lentjes’ Technologies Related to Waste Sector
• Conditioned Dry – CIRCOCLEAN ®
• Semi Dry
• Wet Scrubbers• SCR and SNCR
Gas Cleaning:
• Horizontal / vertical multi pass systems• Standard WTE parameters preferred
Heat Recovery
Boilers:
• Reciprocating Grate (air/water-cooled)• Roller Grate• Circulating Fluid Bed• ROWITEC ® Fluid Bed• Fluidized Bed
Furnace Types:
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Roller GrateReciprocating Grate
Counter Reciprocating Grate
Application:
Incinerationof MSW
Application:
Incineration
of MSW / SRF
Grate Systems
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Fluidised Bed Systems
ROWITEC® CFB
Application: Application:
Incineration of MSW / SRF + Sludge Incineration of SRF
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Typical Application Ranges of Technologies
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Roller Grate
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Roller Grate Section I
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Roller Grate Section II
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Roller Grate Side Wall
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Grate Bar
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Roller Grate Drives
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Roller Grate Capability for High CV‘s
EfW Plant Wuppertal / D
Variation of Heating Values
- Roller Grate -
8.000
9.000
10.000
11.000
12.000
13.000
14.000
15.000
16.000
1 2 3 4 5 6 7 8 9 10111213141516171819202122232425262728293031323334353637383940414243444546474849505152
Week
L H V
M J / k g
2002 2006 Average 2002 (11,8 MJ/kg) Average 2006 (10,6 MJ/kg)
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Combined Grate
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Function of Grate Type 410 (Reciprocating)
Start Position Middle Position Final Position
moving rows fixed rows
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Start Position Middle Position Final Position
Function of Grate Type 510 (Counter Reciprocating)
fixed rowscounter moving rows
counter moving rows
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Center Flow Combustion Chamber
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Roller Grate / Reciprocating Grate
Ø Both meet all guarantees (burnout incl. siftings)
Ø Both have very good references
Ø Both present modern state-of-the-art design
Ø Roller Grate has lower energy use
Ø Roller Grate has less maintenance requirements
Ø Significant grate bar weight difference
Ø Roller Grate has a higher CV limit in standard form
Ø Geometry configuration is different (70 % difference
in width has advantages for boiler design)
Ø Roller Grate has lower exchange rates
Ø Roller Grate applicable for both small and large units
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ROWITEC® Fluidized Bed Firing
Process Principle
1. Waste Feeder
2. Revolving Fluidised Bed
3. Fluidising Air
4. Flue Gas
5. Deflector Plate
6. Non-combustibles
Discharge Chute
7. Inclined Nozzle Plate
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ROWITEC® Fluidized Bed
Primary air
supply
Non combustiblesdischarge screw
conveyor
Waste Feeder
Secondary air
inlet nozzles
2. Screen
Freeboard
burner
Flue gases
to boiler
Sand
valve
Bed preheat
burner
Bucket
elevator 1. Screen
Magnetic
separator
Bed
Material
(sand)
storage
silo
Non combustibles
discharge conveyor
1 Flue gases to boiler 2 Freeboard burner 3 Secondary air inlet nozzles4 2. Screen5 Sand valve6 Waste Feeder
7 Bed Material (sand storage silo)8 Bed preheat burner 9 Primary air supply
10 Non combustibles dischargescrew conveyor
11 1. Screen12 Magnetic separator
13 Bucklet elevator 14 Non combustibles discharge
conveyor
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ROWITEC® Fluidized BedMadrid Integrated Waste Processing Facility
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ROWITEC® Fluidized BedMadrid Integrated Waste Processing Facility
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ROWITEC® Fluidized BedBed Nozzles and Deflector Plates
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ROWITEC® Fluidized BedBootom Ash after Ferrous Metals Separation
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ROWITEC® Fluidized BedFerrous Metals separated from Bottom Ash
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ROWITEC® Fluidized BedResidues in Botton Ash
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ROWITEC® Fluidized Bed Firing
Ø Improved heat transfer through the use of a sand bed.
Ø Rapid, complete combustion in the fluidized bed with
a short retention time.
Ø High flexibility with regard to variations in the
composition of the refuse.
Ø Ease of control due to staged, targeted combustion air feeding.
Ø Reducing atmosphere in the bed zone, thereforesubstantially lower NOx levels in the combustor.
Ø Complete combustion: the residual carbon content of
the bed ash and fly ash is usually less than 0,1 wt. %.
Ø No moving parts in the hot combustor area.
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Combustion System / Steam Generator I
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Combustion System / Steam Generator II
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Combustion System / Steam Generator III
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Combustion System / Steam Generator IV
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Horizontal / Vertical Boilers
Ø Both meet all guarantees
Ø Both have very good references
Ø Both present modern state-of-the-art design
Ø Horizontal boiler has less steam consumption
Ø Vertical boiler results in lower invest cost
Ø Vertical boiler requires higher buildings
Ø Horizontal boiler requires more space
Ø General tendency:
Horizontal boilers for small units
Vertical boilers for large units
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Flue Gas Treatment Processes
Process TypesFlue Gas Treatment downstream
Waste Incineration Plants
Dry Processes
• NEUTREC
• Ca(OH)2 basedprocesses
Wet Scrubbing
• Spray scrubbers
• Packed columesscrubbers
• Multi stage scrubbers
• Wet electrostaticprecipitators
Catalytic/Non-CatalyticProcesses
• Activated carbonprocesses
• SCR-DeNOx andDeDiox
• SNCR-denitrification
Process Recovering
• Gypsum recovery
• HCl-recovery• Recovery of
NaCl/CaCl2
Semi-Dry Processes
• CIRCOCLEAN• Spray absorbtion• Dry conditioned
processes
Combined Processes
• Effluent free processesby means of evaporationand/or recovery of valuables
Adsorption Processes
• Transport reactor • Fixed bed adsorber • CFB
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Comparison of Flue Gas Treatment Systems
- High Investment Costs- Limited Removal Efficiency
- High Residue Disposal Costs
- Possibly Waste Water Treatment required- High Residue Production
- High Maintenance and Operational Costs- High Sorbent Consumption
+ Minimised Residue Disposal Costs
+ Minimised Residue Production+ Effluent Free
+ Minimised (Stoichiometric) Sorbent
Consumption
+ Low Maintenance and Operational Costs
+ High Removal Efficiency+ Low Investment Costs
Wet ProcessesDry / Dry Conditioned Processes
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Circoclean ® Flue Gas Cleaning System
TIC
p
LCFIC
Water
Activated Carbon
Flue Gas
Residues CFBReactor
Fabric Filter Stack
ID - Fan
Pressurecombustion
chamber
Control
A
Lime
Control
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MHKW Frankfurt (Old Plant)
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Old Plant New Plant Annual Capacity t/a 447.000 525.000
Number of Lines 4 4
Capacity per Line t/h 15 20
LHV @ MCR MJ/kg 9,2 10,3 (8,0 – 14,0)
Steam Parameter °C/bar 500/60 500/60
Boiler Design 3-Pass + Horiz. 1-Pass + Horizontal
Flue Gas Cleaning System Semidry, ESP, Cond. dry Circoclean
Fabric Filter with PAC
Emission Values 17. BImSchV 17. BImSchV
MHKW FrankfurtComparison of Design Data
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MHKW Frankfurt
Typical Operation Data (mg/mn³)
Raw gas Clean gas Ø
HCl 600 – 750 7,5
SO2 160 – 270 8,4
CO 8,6Cges 0,5
NOx 180
Hg 0,002
Dust 0,5
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MHKW FrankfurtImpressions during the Erection I
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MHKW FrankfurtImpressions during the Erection II
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MHKW FrankfurtImpressions during the Erection III
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MHKW Frankfurt(New Plant)
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Taoyuan SouthPlant Location
Taoyuan SouthPlant Location
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Technical Data
Service Area 25 km Radius, Southern Taoyuan C ounty (near International Airport), 950.000 Inhabitants
Municipal / Comm ercial Waste 420.000 t/a
W aste Bunker Volume 12.000m ³
Waste Pre-treatment System none
Incineration 2 x 28,125 t/h
Grate Type Roller Grate
Heating Value W aste 5,9 – 13,4 MJ/kg (9,6)
Incineration Tem perature 1100°C
Steam Generation per Boiler 85 t/h, 40 bar, 400°C
Pow er Generation 40 M W e, 4 MW th District Heat
F lue G a s C lea n ing Sy st em 2 x 1 60 .0 00 m³/h, Spra y Drye r ( Se mi- dry) w i thBaghouse, Provisions for SNCR
Emission Lim its Acc. to Taiw an EPA
Land Required 200 m x 175 m
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Taoyuan SouthFlow Diagram
1. Waste Tipping
2. Incinerator withSteam Generator
3. Deslagging
4. Spray Absorber
5. Bag Filter
6. Residue Silos
7. Cement Silo
8. Solidification
9. Turbo Generator Setand Water / Steam -
Cycle
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BOILER HOUSE BUNKER TIPPING HALL
AIR COOLED CONDENSER TURBINE HOUSE
STACK
FLUE GAS CLEANING
RR
Q
P
1 2 3 4
N
M
L
K
J
5 6 7 8 9 1 0 1 1 1 2
H
G
F
E
D
C
B
A
1 2 3 4 5 6 7 8 9 1 0 1 1 1 2
1 3 1 4 1 5 1 6 1 81 7 1 9 2 0 2 1 2 2 2 3 2 4
R
Q
P
N
M
L
K
J
1 3 1 4 1 5 1 6 1 81 7 1 9
H
G
F
E
D
2 0 2 1 2 2 2 3
C
B
A
2 4
T a o y u a n S o u t h e r n R e g i o n B O O M u n i c i p a l S o l i d W a s t e I n c i n e r a t i o n P l a n t
8
7
6
5
4
10
2
1
9
3
1
2
3
4
56
7
8
9
10 Air Cooled Condenser
Steam Turbine Generator Set
Bag FilterSemi Dry Scrubber
Waste Heat Recovery Boiler
Incinerator
Refuse Crane
Refuse Bunker
I.D. Fan
Stack
Taoyuan SouthSectional View
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Plant Model
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Plant Impressions
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Plant Impressions
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Plant Impressions
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Plant Impressions
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Taoyuan SouthOperation Data
38436 46
200303 680 744
Total 2 96 39673 39 2159
200302 672 19461,47 672
Year / Month #1 Incinerator #2 Incinerator
200301 744 20211,92 743
Operation hour Treatment tonnage Operation hour Treatment tonnage
19615,74
18820,72
18450 36
21 927 76
19419,1
18639,41
11646,48
12154,78
12558,53
19472,6920261 06
20941,95
456
556
774
7999
21143,37
18491,61672
643 17748,42
16812,76
18965 85
215293 76
744
482
744720
744
744
720
8 3
18720,49
21048,29
12275,28
19431,8119021 61
21378,9
20061,29
18514,16
7916,25
720
299
720
744
Total
21147,07744
672
744
456
744699
744
744
200209
200210
200211
200212
200205200206
200207
200208
200201
200202
200203
200204
#1 Incinerator #2 Incinerator Year / Month
Operation hour Treatment tonnage Operation hour Treatment tonnage
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3. Summary
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Lithuania Projects
Ø Lithuania EfW facilities will require
l Large Contractor with Parent Company
Backingl Long Term Commitment to European EfW
Market
l Robust Guarantees
l Bankability
ü
ü
ü
ü
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Lithuania Projects
Ø Lentjes provides …
l Type and range of technologies
l Ability to meet capacity range
l Experience and references in PL
ü
ü
ü
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High level technologies for the incineration of waste are available
and allow economic and efficient disposal concepts.
All technologies fulfil the requirements for
ü large unitsü high efficiency
A decision for a system must be taken on a project specific basis!
The aim must remain:
Environmentally safe and reliable incineration of waste.
Summary
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Lentjes GmbH Forward Market Philosophy
Ø Build on sustained presence in key WTE markets
Ø Select target projects technically and commercially
Ø Maintain turnkey capability
Ø Longterm WTE experience with multiple references
Ø Continue to offer proven technology
Ø Maintain Lentjes’ reputation for quality process plants
Ø Increase market share in Waste to Energy markets
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Win-Win-Position
Lentjes GmbH
TurnkeyContractor
Strong MarketPresence
In House Chute toStack Technologies
Bankability
Lithuania
Requires waste management
solutions incorporatingsteam/power experts
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… is the worldwide experienced EPC GeneralContractor with proprietary technical solutions for solid and liquid, hazardous and non-hazardous
waste incineration plants.
Lentjes GmbH
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Thank you for your attention!
Gunnar LischkeSales Director Lentjes
We have TechnologiesWe have Know-howWe have References