1. presentation outline gunderboom afb technology initiati on aquatic filter barrier (afb) initial...

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California Energy CommissionSacramento

February 7th, 2008

Aquatic Filter Barrier

Technology Overview and Update

California Energy CommissionSacramento

February 7th, 2008

Aquatic Filter Barrier

Technology Overview and Update

Presentation OutlinePresentation Outline

Gunderboom AFB Technology InitiationGunderboom AFB Technology Initiation

Aquatic Filter Barrier (AFB) Initial Development 1986, Alaska:

Sediment Dredging Disposal, Kachemak Bay

Applications Developed:Reservoir Protection System (RPSTM)

Beach Protection System (BPSTM)

Particulate Control System (PCSTM)

Sound Attenuation System (SASTM)

Marine Life Exclusion System (MLESTM) – Initial Development Started 1995

Downstream, Filtered Water at

1.5 NTU

185 NTU Water and Debris from Construction

SitePCS™

Types of AFB Applications Developed: Reservoir Protection System (RPSTM)

Beach Protection System (BPSTM)

Particulate Control System (PCSTM)

Sound Attenuation System (SASTM)

Marine Life Exclusion System (MLESTM) – Initial Development Started 1995

What It Is…

A Water-Permeable Barrier that Keeps Fish Eggs, Larvae and Other Organisms a Safe Distance Away From an Industrial Intake Structure

Site-Specifically Designed to Prevent Impingement and Entrainment of Ichthyoplankton and Juvenile Aquatic Life

Best Technology Available on a Site-Specific Basis (Section 316(b) Of The Clean Water Act)

Technology Review I: Marine Life Exclusion System™ (MLES™)Technology Review I: Marine Life Exclusion System™ (MLES™)

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Technology Review II: Marine Life Exclusion System™ (MLES™)Technology Review II: Marine Life Exclusion System™ (MLES™)

How It Works…

Surrounds the Intake Structure, Preventing Targeted Planktonic and Neustonic Organisms From Entering the CWS.

Water Velocity Through the Gunderboom® MLES™ is 0.02 fps, 95% Less Than Approved Intake Velocity. Low Water Velocity Enables Small Fish Larvae to Drift Away From the AFB.

Automatic AirBurst™ Cleaning Utilizes Sensor Equipment For System and Environmental Conditions and is Controlled by SCADA System; The AirBurst™ Releases any Deposits From the Filter Material and Helps Prevent Biological Fouling.

Melissa Hamlin

AJM to Check

Technology Review III: MLES™ Performance SpecificationsTechnology Review III: MLES™ Performance Specifications Size Of Organism Excluded:

All Life Stages ≥ 0.6 mm Screen Approach Velocity:

0.02 FPS at 10 GPM/FT2

Fouling:

Minimal Susceptibility To Most Taxa Currents:

3 Knots Demonstrated Long Term; Higher Capability Depths:

Greater Depths Optimum For Additional Filter Surface Area Tidal/River Level Range:

>8 Feet Demonstrated Long Term, Extreme Alaska Tides Demonstrated Shorter Term

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Technology Review IV: MLES™ Design ConsiderationsTechnology Review IV: MLES™ Design Considerations Intake Design:

Available Areas & Existing Structures UtilizedMLES™ Structural Requirements Addressed a Variety Of Ways

System Size – Required Filter Area Depends On:Target Size And Seasonality of Organism To ExcludeFlow Requirements of Facility

AirBurst™ Cleaning and SCADA System RequirementsInstrumentation For Automatic OperationIntegration With Wedgewire Automatic CleaningReal-Time Operations and Data Download Via Remote Access

Environmental ConditionsTSS/TurbiditySudden Water Level ChangesAvailability Of Cross-FlowSeasonality

Curtain:Anchored And Floating, Sealed To Bottom And Along Shoreline

Panel:Fixed, Panelized Structure Enclosing Intake Bay Area

Cartridge:Carriage Structure Accepts MLES Cartridges, Which Supply A Reservoir Area With Filtered Water Via Individual Pipes

Technology Review V: Development and MLES™ TypesTechnology Review V: Development and MLES™ Types

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Site Requirements:386 MGD Total FlowSeasonal (6-Month) Exclusion of Eggs and Larvae of Fish SpeciesUp To 3-Knot Current, 3-4 Foot Tide Range, and 40-Foot DepthHigh Degree of Automation and Remote System Access

Results:95% Reduction With MLES™ In Place

Developmental Improvements:Stronger Attachment PointsMore AirBurst™ Cleaning System FunctionsZippered Filter Cells For Easier DeploymentUpdated Filter Materials; Fabric Industry Technology is Moving Ahead By Leaps and Bounds

Technology Review VI: Successful Years On The Hudson RiverTechnology Review VI: Successful Years On The Hudson River

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Technology Review VII: Curtain Installation and DeploymentTechnology Review VII: Curtain Installation and Deployment

Technology Review VIII: MLES™ Panel DesignTechnology Review VIII: MLES™ Panel Design

Technology Review IX: Panel Installation and OperationTechnology Review IX: Panel Installation and Operation

Individual Framed Panels

Lower Flow Applications

Integrated Into Plant Operations

Technology Review XI: Cartridge Intake and Array DrawingTechnology Review XI: Cartridge Intake and Array Drawing Individual Cartridges, Self-

Contained and Sealed Each Cartridge with Two

Faces, Each with Double-Layered Fabric With An Air Diffuser Between the Fabric Layers

Cartridges Designed Into An Array, Factoring In:

Intake Capacity Requirements

Site Characteristics Could Be In An Intake Bay

Or Independent Support Structure

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PatentsPatents

Floating Containment Boom PCS Patent No. 5,102,261; Containment/ Exclusion Boom and Methods of Using the Same (MLES) Patent No. 6,485,229; Containment/ Exclusion Boom with Bird Deterrent U.S. Patent No. 6,514,010; Boom System and Its Use to Attenuate Underwater Sound Or Shock Wave Transmission Patent No. 6,567,341; Panel Anchoring System For Boom Installation U.S Patent No. 6,848,861; Boom Curtain with Zipper Connections and Method of Assembling Boom Patent No. 6,739,801; Boom Curtain with Expandable, Pleated Panels, Containment Boom Containing the same, and Use There Patent No. 6,743,367; Containment/ Exclusion Barrier System with Infuser Adaptation to Water Intake System U.S. Patent No. 6,843,924; Attachment for use With Stockpiling Barge and Method of Filtering Runoff Water There from (Gundersock) U.S Patent No. 6,857,819; Patents Pending

G-Weave Fabric Developments

Characteristics Newly Available Woven Geo-

Textile Capable of Higher Flows than Previous

Stronger and More Durable than Traditional Filter Fabric

Lighter, and No Increase with Wet-Weight

Easily Cleaned and Maintained


Woven

Non-woven

Strength Testing

Field Testing Apparatus

Fabric Depictions


• Gunderboom Testing and Results– Tensile Strength – 440 vs. > 1400 lbs.*– Sew Seam Strength – ½” from edge– Pressure Wash Durability – No Signs of

Wear– Agitation – No Signs of Wear; Heat

Welds Held Up– Rip Stop – 200 vs. 1150 lbs.*– Puncture Durability – No Resultant

Tearing*Traditional Non-Woven vs. G-Weave Woven


Biological Survivability – Testing at Alden Labs

Survival of Blueback Herring eggs after exposure to the G-Weave fabric in the laboratory was high

Alden described that, “the mortality experienced in this study... may potentially reflect natural mortality”.

There was no significant difference between the survival of eggs exposed to the new G-Weave fabric, or other Gunderboom fabrics, and the control samples.

Anchor/Mooring System Developments and Alternatives

Pile- Supported Structures

Filter Pools

Helical Anchors

Buoyancy Developments

Buoyancy Analysis

34 35 36 37 38 39 40 41 422000

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3000

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3600

3800

4000

Water Depth (ft)

OverT

oppin

g Load (lb

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Theta=10Theta=20Theta=30Theta=40Theta=50Theta=60Theta=70Theta=80Theta=90

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Billet stickup = 10.2 in (0.85 ft)

q = 6.14 gpm/sq. ft dH = 1.0 inches (0.08 ft)

= 6.14 gpm/sq. ft/inch p = 5.2 psf

Billet diameter = 21 inches

156.2° R = 21.3' C = 58.2'

111 lb/ft

Design Operating Case: Tide or river level at normal low condition (e.g., at MLLW). Boom fabric is un-clogged and water head differential is at normal operating level (e.g., dH = 1.0 inches).





153.1° R = 22.6' C = 60.4'

112 lb/ft

High Tide Case: Tide or river level at high condition. Boom fabric is un-clogged (same as design operating condition).





164.1° R = 18.6' C = 53.4'

102 lb/ft

Low Tide Case: Tide or river level at low condition. Boom fabric is un-clogged (same as design operating condition).

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Control System Developments– Networking Hardware – More Robust and Widely-Used

Systems Available (e.g. “DeviceNet”)– Independent Components Provide More Reliable Operation;

No “Christmas Tree Lights”

Remote Monitoring Ability – Lovett Generating Station

Remote Monitoring Ability – Astoria Generating Station

Remote Monitoring Ability – Bethlehem Energy Center

Gunderboom Projects – Ongoing Projects

– Lovett Generating Station

Lovett Generating Station2007 Exclusion Rates

“Conclusion -Calculation of ichthyoplankton exclusion rate based on seasonal

paired plankton sampling and analysis yielded a 95.4% exclusion for fish larvae and 96.4% exclusion for fish eggs.”

(Gunderboom, 2007)

Gunderboom Projects – Ongoing Projects

Gunderboom Projects -Other Gunderboom

Successes!– Mamaroneck, NY – Beach Protection System™ (Demonstrated in Photo Below)

– Kensico, NY – Reservoir Protection System™

Gunderboom Projects – New Projects

New York City Waterfalls,

Public Art Fund

Taunton River Desalination Plant*

*Gunderboom Proprietary Material For viewing by the direct Recipient only. Not to be reproduced or forwarded.


*Gunderboom Proprietary Material For viewing by the direct recipient only.Not to be reproduced or forwarded.


Taunton River Desalination Plant*

Taunton River Desalination Plant MLES™


*Gunderboom Proprietary Material For viewing by the direct recipient only.

Not to be reproduced or forwarded.


Paluel – MLES™ for Coastal Nuclear Power Plant

Gunderboom Projects –New Projects

Previous Dredging ResultsInside Outside

Sheen: Present No SheenTurbidity: 96 NTU 1.5 NTU

TSS: 350 mg/l 13 mg/lChrysene 0.36 ug/l nd(ex)

HEAVY DUTY TURBIDITY BARRIERSpecification:

“A. Silt/turbidity barrier shall consist of heavy duty non-woven skirt, flotation elements, PVC coated

reinforced vinyl debris boom, top tension cable and bottom chain ballast or other anchorage system which

will not obstruct navigation.B. Barrier shall be full-height, extending from the water surface to the river bottom. The height will depend on the alignment of turbidity barrier and the bathymetric

contours along that alignment.C. Non-woven skirt shall be comprised of 100%

polypropylene filaments, needle punched and heat set.”

Highlands Bridge –Sea Bright, New Jersey

City of Stockton – MLES™ Delta Water Supply

Project

GUNDERBOOM PROJECT APPROACH

Phase I – Conceptual Design and Preliminary Feasibility StudyPhase II – Design Engineering Studies; Pilot TestingPhase III – Final Engineering DesignPhase IV – Procurement and FabricationPhase V – Installation and CommissioningPhase VI – Operations and Maintenance

Gunderboom Projects –New Projects

9401 King St., Ste A 2 White Sands Lane

Anchorage, AK 99515 Scarborough, ME 04074

866-396-5100 207-883-1777

www.gunderboom.com

Corporate Office

9401 King St., Ste A

Anchorage, AK 99515

866-396-5100For Copy of Presentation or Questions:

[email protected] or [email protected]

(207) 883-1777

mailto:[email protected]

mailto:[email protected]

1. presentation outline gunderboom afb technology initiati on aquatic filter barrier (afb) initial...

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