mekorot - separations overview (2010).ppttdrl.co.il/upload.tdrl- degtec seminar - separations...
TRANSCRIPT
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SeparationsOverview
TDRL Seminar
Presented by: Infilco Degremont
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
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North American Footprint
INFILCO DEGREMONTRICHMOND, VA181 EMPLOYEES
WPTSALT LAKE CITY, UT132 EMPLOYEES
OZONIA NANEW JERSEY71 EMPLOYEES
DEGREMONT LTDMONTREAL, QC27 EMPLOYEES
ANDERSONDUNDAS, ON 60 EMPLOYEES
5 companies ● 471 employees
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Over 114 Years of Providing Solutions
Over 114 Years of Providing Solutions
Wide Range of Treatment Solutions
- Headworks
- Disinfection
- Biosolids
- Biological
- Separations
- Reuse
Clarification Technologies:
� SuperPulsator – sludge blanket
� DensaDeg – high-rate solids contact
� AquaDAF – dissolved air flotation
Filtration Technologies:
� Greenleaf – cluster filters
� ABW – automatic backwash
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
IDI Clarifier History
Process TypeSurface Loading
RateNo. of
InstallationsYear Developed
Accelator® Solids Contact 0.75 - 2.5 gpm/ft2 ~1780 1940’s
Pulsator® Sludge Blanket 1.0 - 1.25 gpm/ft2 ~84 1955
PulsaPak® Sludge Blanket 1.5 gpm/ft2 ~27 1970’s
SuperPulsator® Sludge Blanket 2.0 - 4.0 gpm/ft2 ~195 1982
DensaDeg®High-Rate Solids
Contact8.0 – 12.0 gpm/ft2
~225 1985
AquaDAF® High-Rate DAF8.0 – 16.0 gpm/ft2
20 2000
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AquaDAF®
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
• Proven technology for 30+ years
• Optimization of conventional equipment to increase efficiency
• High rates: 30 to 40 m/h
• Perfect process to efficiently remove low density particles
• Perfect process for membrane pretreatment - NO POLYMER
AquaDAF® Advantages
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
AQUADAF APPLICATIONS
• Clarification (low turbidity/TSS)
• High TOC, color waters
• Low density solids
• Algae removal
• Cold waters; Thermal variation
• Membrane filtration pretreatment
• Desalination pretreatment
• Tertiary Phosphorous Removal (w/ filters)
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
DAF Process OverviewHigh-Rate Dissolved Air Flotation – Internal System
Raw Water Inlet & Distribution - Following in-line mixing
Primary Flocculation3-5 min. @ 80-100 G
Secondary Flocculation3-5 min. @ 30-60 G
Air-WaterDispersion Zone
Accumulated Sludge Layer
Flotation Zone
Auto Effluent Weir
Effluent Channel
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
DAF Process OverviewHigh-Rate Dissolved Air Flotation – Operating
Principles
Recycle Stream:
• Recycle flow: 8-10% of throughput
• Operating Pressure: 5-6 bar
• Unpacked Saturator Vessel
• Injection: Proprietary nozzles
Micro-Bubble Production:
• Air Blanket: Milky appearance
• Solids adhere to bubbles and float to surface
• Continuous production of air blanket
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Hydraulic:
• Flood DAF basin with automatic effluent weir
• Sludge wash line around periphery of DAF basin
• Simple, less mechanical approach
• Water loss: 0.75 to 1.5%
• Solids concentration: < 0.3 to 0.5%
Mechanical Scraper:
• Mechanical scraper mechanism
• Mechanical, thickening approach
• Water loss: < 0.5%
• Solids concentration: 2-4%
DAF Process OverviewSludge Removal Options
DAF Process OverviewSludge Removal Options
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Recent AquaDAF Successes
• SSJID, CA – Pretreatment to membranes (6300 m3/h)
• Haworth, NJ – Algae Removal of Lake water: (33,000 m3/h)
• Hudson, MA - Tertiary phosphorous removal. Less than 0.1 mg/L DAF goal
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Haworth, NJ (32,700 m3/h)
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DensaDeg Clarifier
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
• Product developed in the early 1980’s by Degremont
• ~250 installations
• First installation: 1984
• Diversified Applications
INDUSTRIAL - 46%
WASTEWATER - 35%
WATER - 19%
ClarificationSofteningOrganics RemovalFilter/Membrane Backwash Recovery
Primary ClarificationTertiary Phosphorus RemovalHigh Rate CSO/SSO
ClarificationSoftening/Silica RemovalMetal PrecipitationFluoride RemovalFGD Wastewater
History & Applications
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
DENSADEG ADVANTAGES
•Flocculation + Clarification + Thickening in one unit
•2 – 4% Solids Production•No problems with large variations in influent conditions
•High Rates: 20 – 24 m/h (clarification)24 – 36 m/h (softening)70 – 100 m/h (CSO)
•Unit capacity: 160 – 4000 m3/h
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Turbine Draft Tube
Coagulant
Polymer
FlowSplitter Sludge
Recycle Pump
Sludge Recirculation
Sludge Blowdown
Settling Tube Assembly
Settling Tube Support
Recirculation ConeLifting Assembly
LaunderAssembly
Reactor Turbine Drive
Rapid Mix
Reactor
Clarifier / Thickener
Dynamic Separation & Clarification
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
CAPACITY per UNIT:
160 to 4000 m3/h (concrete)
25 to 4000 m3/h (steel)
RAPID MIX RETENTION:
2 to 3 min (clarification)
SLUDGE RECYCLE:
3% to 6%
SLUDGE BLOWDOWN:
2% to 4% (clarification)
5% to 20% (softening)
LOADING RATE:
20-24 m/h (clarification)
24-36 m/h (softening)72-108 m/h (CSO)
REACTOR RETENTION:
~8-10 min
CLARIFIER RETENTION:
~ 25-30 min
Unit Design Considerations
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
• Toledo, OH – Largest HRC for CSO (36,500 m3/h), design velocity >100 m/h
• Wadi Ma’in, Jordan – Backwash waste recovery system followed by UV, 700 m3/h
Densadeg Performance
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SuperPulsator
Sludge Blanket Clarifier
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
SuperPulsator Process Sludge Blanket Clarifier – Complete System
DistributionLaterals
SettlingPlates
CollectionLaterals
VacuumChamber
Vacuum PumpVent Valve
BlowdownPipes
CollectionChannel
DistributionChannel
Concentrator
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
SuperPulsator ApplicationsPulsed Sludge Blanket Technology
• Clarification only - New or Retrofit
• Typical Loading rates of 5-10 m/h
• Low to high Turbidity (5-1000+ NTU)
• Low to very high Color (1-100+ PCU)
• Organic carbon removed with PAC
• Membrane Pretreatment w/ no polymer - low rates
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
• Pulsed flow through the basin - created by vacuum pump
• Constant upflow velocity over entire surface area
• Combined flocculation/clarification in one basin
• Internal sludge concentration and automatic sludge removal
• No submerged moving parts and corrosion resistant internals
SuperPulsator Operating PrinciplesPulsed Sludge Blanket Technology
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
SuperPulsator Process Sludge Blanket Clarifier – The Pulse
Vacuum
Chamber
Vacuum PumpVent Valve
Open
Sludge Blanket
Expansion
Vacuum
Chamber
Vacuum PumpVent Valve
Closed
Sludge Blanket
Contraction
Pulling a Vacuum: 40 to 50 secondsVenting: 8 to 12 seconds
Periodic sludge discharge
0.2 to 0.5% solids
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
SuperPulsator Process Sludge Blanket
10 feet of a filtering sludge blanket
7 feet of a clarification zone
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
SuperPulsator Process OverviewMyrtle Beach, SC
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Singapore, Chestnut WTP
Plant Flow: 17,000 m3/hInfluent Turbidity: 5-10 NTUEffluent Turbidity < 0.7 NTUCoagulant: 30 ppm AlumPolymer: 0.4 ppm
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Process HighlightsAdvantages
SuperPulsator ADVANTAGES
− Proven Technology – hundreds of operating installations
− No submerged moving parts
− Sludge Blanket = 10’ of Buffering Capacity
− “High Rate” Process with Detention Time
− Extremely Low Energy Required
− Membrane pretreatment without polymer (reduced loading rates)
− Low capital cost - $
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Pulsapak®
Package Treatment Plant
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Pulsapak® Design Considerations
Clarification or Clarification & Filtration
Little to no civil construction
8 Sizes between 30 – 160 m3/h
Typical Loading rates of 1.5 gpm/ft2 (3.6 m/h)
Low to high Turbidity (5-1000+ NTU)
Low to very high Color (1-100+ PCU)
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Vacuum Pump
Vacuum VentVacuum Chamber
Clarified Water Collection Laterals
Clarified WaterFilter Inlet
WashwaterOutlet Trough
Underdrain
Sand
Filter Drain
Anthracite
Stilling Plates
Sludge Blowdown
Settling Tubes
Coagulated Water Inlet
Raw Water Inlet
Sludge Blanket
Backwash Line
Waste Piping
Effluent Header
Filter-to WasteLine
Air Line
Distribution Laterals
Pulsapak®
Package Treatment Plant
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Pulsapak® P-100 (160 m3/h)(Lake Murray, SC)
Pulsapak® P-100 (160 m3/h)(Lake Murray, SC)
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Pulsapak® P-18 (50 m3/h)(Canada)
Pulsapak® P-18 (50 m3/h)(Canada)
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The ABW®Filter
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
The ABW®Filter
•An American Invention, Introduced Circa 1928, by The Hardinge Co. of York, PA
•Acquired and marketed by Environmental Elements Corp, of Baltimore, MD until 1987
•Acquired and now marketed by Infilco Degremont, Inc. of Richmond, VA
• In excess of 2,000 units are currently in operation in the United States and Canada.
•Units are also in operation in: UK / Switzerland / Japan / Korea
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
ABW Filter Advantages
• Low head loss across filter 300mm
• No pipe gallery
• No need for filter redundancy
• No large backwash pumps
• No backwash tank needed
• Minimal energy consumption
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Typical Applications
• Tertiary Treatment• Reuse• Potable Water• Industrial Process and Waste
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Filter Design
ApplicationApplication Design RateDesign Rate Typical MediaTypical Media
ConfigurationConfiguration
Wastewater
Wastewater
Reuse
Potable Water
275mm coarse media
275mm fine media or
deeper media.6-7 m/h
5 m/h nominal
10 m/h peak flow
5 m/h nominal
10 m/h peak flow
275mm coarse media or
400mm dual media (if
stringent guarantees are
required)
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Typical Concrete ABW
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Typical Package ABW
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Typical Filter Layout
Influent Channel
UnfilteredWater
Effluent Channel
Influent Channel
Slide Gate (Optional)
Influent
Weir
EffluentWeir
FilteredWater
EffluentChannel
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
The ABW®Filter
Washwater
Trough
Washwater
HoodCompartmentalized
Filter Bed
Effluent
Channel
Control
Panel
Backwash
Assembly
Influent
Ports
Influent
Channel
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Backwash Mode
A B C D E
Entrapped
Solids
Backwashing
Underdrain
Backwash Direction
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
ABW Filter Performance Results
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Back River WWTPBaltimore MD
Peak Flow: 80,000 m3/h
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Greenleaf FilterGravity Cluster
Filter
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
The Greenleaf Filter Control represents a unique concept for the
control of multiple granular media filters. It eliminates bulky piping
and valves through the ingenious application of siphons.
• Low Maintenance
• Requires Small Footprint
• Low Energy Requirement
• Common Wall Construction
• Excellent Filtered Effluent
• Simple and Effective
Greenleaf Filter OverviewGravity Cluster Filter
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
• Traditional filter requires significant amounts of: land, large piping and
large, line sized valves.
• A Greenleaf type filter
has a footprint that is
33% smaller than a
conventional filter and
gallery.
Greenleaf Filter OverviewGravity Cluster Filter
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Greenleaf Filter OverviewGravity Cluster Filter – Design Considerations
• Cluster-type filter � 4 cells grouped around central core
• Customary design - Filter/backwash rate, media depth, etc. are practiced
• Essentially 4 conventional filters
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Filter Cell
Forebay
Underdrain
Common Filtered
Water Chamber
Top of Basin
Pretreated Water Flume
Vacuum Tank
Inlet Weir Chamber
Inlet Siphon Valve
Effluent
Control
Weir
Filtered Water toStorage or Service
Low
High
Wash Trough
Cell
Isolation Line
Drain
Filter to Waste Line
Isolation Valve
3 - Way Valve (Actuates Inlet Siphon Valve)
Greenleaf Filter OverviewNormal Filter Operation
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Filter Cell
Forebay
Underdrain
Common FilteredWater Chamber
Top of Basin
Pretreated Water Flume
Vacuum Tank
Inlet Weir Chamber
Inlet Siphon Valve
Effluent
Control
Weir
Filtered Water toStorage or Service
Low
High
Drain
Wash Trough
Cell Isolation Line
Filter to Waste Line
3 - Way Valve (Actuates Inlet Siphon Valve)
Backwash Siphon
Backwash
Waste Section Isolation Valve
Greenleaf Filter OverviewMaximum Headloss in One Filter Cell
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Filter Cell
Forebay
Underdrain
Common Filtered
Water Chamber
Top of Basin
Pretreated Water Flume
Vacuum Tank
Inlet Weir Chamber
Inlet Siphon Valve
Effluent
Control
Weir
Filtered Water toStorage or Service
Low
High
Wash Trough
Cell
Isolation
Line
Drain
Filter to Waste Line
Isolation Valve
3 - Way Valve (Actuates Inlet Siphon Valve)
Greenleaf Filter OverviewFilter Cell Drain
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Filter Cell
Forebay
Underdrain
Common Filtered
Water Chamber
Top of Basin
Pretreated Water Flume
Vacuum Tank
Inlet Weir Chamber
Inlet Siphon Valve
Effluent
Control
Weir
Filtered Water to
Storage or Service
Low
High
Wash Trough
Cell
Isolation
Line
Isolation Valve
Drain
Filter to Waste Line
BW Solenoid Valve (actuated)
Backwash Siphon
Greenleaf Filter OverviewBackwash Initiation
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Filter Cell
Forebay
Underdrain
Common Filtered
Water Chamber
Top of Basin
Pretreated Water Flume
Vacuum Tank
Inlet Weir Chamber
Inlet Siphon Valve
Effluent
Control
Weir
Filtered Water to
Storage or Service
Low
High
Wash Trough
Cell
Isolation
Line
Isolation Valve
Drain
Filter to Waste Line
BW Solenoid Valve
Backwash Siphon
Greenleaf Filter OverviewBackwash
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Filter Cell
Forebay
Underdrain
Common Filtered
Water Chamber
Top of Basin
Pretreated Water Flume
Vacuum Tank
Inlet Weir Chamber
Inlet Siphon - ACTUATED
Effluent
Control
Weir
Filtered Water to
Storage or Service
Low
High
Wash Trough
Cell
Isolation
Line
Isolation Valve
CLOSED
Drain
Filter to Waste Valve
OPEN
Greenleaf Filter OverviewFilter-to-Waste
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Filter Cell
Forebay
Underdrain
Common Filtered
Water Chamber
Top of Basin
Pretreated Water Flume
Vacuum Tank
Inlet Weir Chamber
Inlet Siphon Valve
Effluent
Control
Weir
Filtered Water toStorage or Service
Low
High
Wash Trough
Cell
Isolation
Line
Isolation Valve
Drain
Filter to Waste Line
Greenleaf Filter OverviewReturn to Service
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HEADWORKS | BIOLOGICAL | SEPARATIONS | MEMBRANES | OXIDATION-DISINFECTION | BIOSOLIDS | INDUSTRIAL SYSTEMS WWW.DEGREMONT-TECHNOLOGIES.COM
Greenleaf Filter Advantages
• Greenleaf siphons for flow split and backwash removal ELIMINATE large inlet & backwash valves (8 per filter)
• All siphon solenoids accessible from operating platform
• Small foot print due to compact arrangement - 33% less space than conventional filter - no large pipe gallery
• Prefabricated components => Simple Installation
• Impossible to shock or surge filter
• Small clearwell - Self Backwashing
• Unlimited media/underdrain configurations
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Questions?