AquaPrime Cloth Media Filtration€¢3,000+ Cloth Media Filters Worldwide • New Plants and...

AquaPrime Cloth Media Filtration

John DysonProduct Channel Manager

Presenter

Presentation Notes

Presentation Outline

• Applications

• AquaPrime Cloth Media Filter Design

• Pilot and Full Scale Testing

• Frequently Asked Questions

• Summary

Presenter

Presentation Notes

Today, you’ll learn: Why Pile Cloth has replaced granular media and become the “go to” technology for Tertiary Filtration, About the wide variety of mechanical configurations available to better suit specific application requirements, That “Performance” means more than just “Influent loadings vs. effluent quality”, and especially, how the media cleanliness affects performance, And how Pile Cloth Filtration is used to meet stringent effluent quality requirements in a number of different applications We’ll end with a Summary of the key points and a Q & A period. Then we will go to the shop to observe some Pile Cloth Filters. TRANSITION: Let’s get started…(click)

Technology TimelineCloth Media Filtration

•3,000+ Cloth Media Filters Worldwide• New Plants and Retrofits

Aqua MegaDisk®

AquaABF® Filter

Cloth Media Filtration

2011 2012

Aqua BioMax®

OptiFiber PES-14® Microfiber Media

2013

Research & Technology Center

2014 20151975 1993 2003

AquaMB Process® System

2004

AquaDiamond® Filter

Primary Filtration

Cloth Media Filter IntelliPro®

ContinuedInnovation

•Size Ranging from 0.1 to 300+ MGD

OptiFiber® Pile Cloth Media

Pile Fibers

Support Backing

Presenter

Presentation Notes

(click through)

Primary Filtration &Primary Effluent Filtration

Primary Influent & Effluent Filtration

Screening

Biological Treatment

Secondary Clarifier

Tertiary Filtration(CMF)

Disinfection

Anaerobic DigesterThickener

AquaPrime (CMF)

Wastewater

Blowers

Primary Sludge

Digested Sludge

Return Activated Sludge Waste Activated Sludge Digester Gas

Discharge

AquaPrime (CMF)

Presenter

Presentation Notes

The AquaPrime can be used in many different applications within a WWTP. In the case of primary treatment, the AquaPrime can replace conventional primary clarifiers as show here. Also, can be in a used for primary effluent filtration applications too.

• Qualifies as a Green Technology

• Energy saving, less blower energy, more gas produced

• Replace/Retrofit existing primary clarifiers

• Plant expansions

• New construction, space savings

• Increased Capacity

• Nutrient removal in the same basin

• Increase hydraulic capacity

Primary & PEF FiltrationWhere to Apply?

AquaPrime Cloth Media Filter Design

AquaPrimeBasics - Differentiation

Floatable Zone

Solids Zone

Filtration Zone

AquaPrimeCMF Adaptations Floatable Added

Redesigned Solids Collection Manifold

Raised Centertube

Influent Baffle Relocated

Elevated Tank Height

Redesigned Hopper Bottom

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Presentation Notes

Emphasize the BNR Include 3-D Version with modifications (3 zones)

AquaPrimeCMF Adaptations

Floatable Weir Added


Raised Centertube



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Presentation Notes


AquaPrimeCMF Adaptations

Floatable Weir Added


Raised Centertube

Influent Baffle Relocated



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Presentation Notes


Mechanical ConfigurationsMid-sized to Large Flows

Aqua MegaDisk® AquaDisk®

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Presentation Notes

AquaDisk and Aqua MegaDisk are for mid-sized and large flows.

Primary & PEFPilot and Full Scale Testing

Primary Effluent FiltrationLinda County WWTP, CA

• Funded by California Energy Commission CEC

• Ran for 2 years with 99% uptime, no cloth wear

• Flux of 4.0 gpm/sf sustainable

• Influent TSS 80-160 mg/L

• TSS removal 50-60%

• Reduce load to aeration basin

• Increase quality of solids to anaerobic digestion

Influent EffluentTSS (mg/L) 120 60VSS (mg/L) 110 50BOD (mg/L) 180 130COD (mg/L) 160 120

Pilot TestingLinda County WWTP, CA

• Filter influent TSS 80-160 mg/L

• Filter TSS removal about 50-60%

• Filter effluent TSS 40-60 mg/L

• Backwash approximately 5-6%

Primary FiltrationTest Results: Example of Energy Management

40 ft

60 ft

Settling Basin

12 ft

20 ft

Aqua MegaDisk

Filter

OptiFiber® Pile Cloth MediaTest Results: Implications

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Presentation Notes

…a very small footprint. For 10.0 MGD peak capacity, a settling basin would occupy 2400 sf with assumption of surface overflow rate (SOR) of 4000 gpd/sf. Aqua MegaDisks (1 x 10 package tank) would take even less footprint. Kruger used SOR of 2600 gpd/sf for their calculation which results in larger settling basin. TRANSITION: Of course, Disk filters come in different size…(click)

Screen (¼ inch

openings)Filtration

Grit Removal

Raw Sewage

PrimaryClarifier

Pilot TestingRock River Water Reclamation District, IL

Pilot TestingRock River Water Reclamation District

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Presentation Notes

Tank is filling up with primary influent. It is clean cloth and eventually will be totally submerged

• 24/7 operation

• Side-by-side testing with primary clarifier

• Flux rates 3.25 – 4.0 gpm/sf-day

• Filter influent TSS averaged 236 mg/L (104 – 526 mg/L)

• Solids loading rates approximately 9 – 10 lb/sf-day

• No chemical addition for most runs


OptiFiber PA2-13®

(Apr – May 2014)OptiFiber PES-14®

(May – Sep 2014)


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Presentation Notes

PA2-13 It is originally introduced in 2000 Nylon pile fibers with polyester backing White color PES-13 Introduced in 2006 Polymer pile fibers with polyester backing Developed because of chlorine resistant properties White and blue color TRANSITION: Both of these cloths have been proven to provide high quality effluent over long periods of time and at hundreds of WWTP


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Date range: 4/14 – 5/8/14 Data does not include weekend composites (due to long holding times and temperature preservation)


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Presentation Notes

High UVT means easier disinfection and less energy consumption.

• One test with chemical addition on August 28, 2014

• PES-14 cloth media

• 5 mg Fe+3/L and 0.1 mg/L of polymer

• 120 NTU 7 NTU

• TSS less than 10 mg/l

• Did not test for UVT

• Chemical free option preferred


Presenter

Presentation Notes

Terry recalls TSS of 6 mg/L. Other primary processes such as actiflo, CoMag, and chemically enhanced treatment typically requires addition of large amount of chemical. However, it is not preferred due to the added operational difficulty and cost. Our testing demonstrated that CMF can achieve high removals of solids, 80 to 90%. However, just to better understand the effect of chem, we did a spot check in end of piloting.

Primary & PEFPilot Test Summary

• Oak Hill, WV has been asked to take on additional flow from

a neighboring town

• To bring this town online, the plant capacity needs to increase.

Oak Hill, WV Testing & Results

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Presentation Notes

Screen FiltrationGrit Channel

Raw Sewage

Oak Hill, WVPilot Setup

• 2.0 – 3.0 gpm/ft2 / No chemical addition

Oak Hill Results

Oak Hill Results

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3-Sep5-Sep8-Sep10-Sep13-Sep15-Sep18-Sep20-Sep23-Sep25-Sep28-Sep30-Sep3-O

ct5-O

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olid

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Total Suspended Solids

InfluentEffluentavg Effluentavg Influent

• 178 mg/L Influent TSS

• 32 mg/L Effluent TSS

• 81% removal

Oak Hill Results

• 246 mg/L Influent BOD

• 155 mg/L Effluent BOD

• 44% removal

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Date

BOD

Influent EffluentINF COD EFF CODINF Avg BOD EFF Avg BOD

Ashville, NCTSS Results

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Test

Influent Effluent avg Effluent avg Influent

Presenter

Presentation Notes

Again > 80% TSS removal

Ashville, NCBOD Results

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Test Run

Inf. BOD Eff. BOD Inf. COD Eff. COD Avg. Inf. BOD Avg. Eff. BOD

Ashville, NCRemoval Efficiencies

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%R

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%BOD5 Removed Average %BOD Removed %TSS Removal Average %TSS Removed

Typical Questions• Backwash & Solids Waste

• Ranged from 12 to 13% of the applied flow

• Send to thickener prior to digestion

• Cloth Wear• Two year PEF operation – no visible wear

• Nearly half year PF operation – no visible wear

• Fats, Oils and Grease (FOG)• Did not affect the operation or removal performance

• Removal considerations in full scale design

• Grit Was Not a Problem

• Includes removal in tank bottom

TRA – Central WWTP, TXPI Removal Efficiencies

273

330

50

100

150

200

250

300

mg/

L

Figure 1Primary Influent Study

Overall Average Filter Influent and Effluent TSS Levels

Influent TSS Effluent TSS

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100%

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02/22/16 02/24/16 02/26/16 02/28/16 03/01/16 03/03/16 03/05/16

mg/

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Daily TSS Removals

Influent Effluent

TRA – Central WWTP, TXPE Removal Efficiencies

65

30.7

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Figure 3Primary Effluent Study

Overall Average Filter Influent and Effluent TSS Levels

Influent TSS Effluent TSS

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03/05/16 03/06/16 03/07/16 03/08/16 03/09/16 03/10/16 03/11/16m

g/L

Figure 4 Primary Effluent Study

Daily TSS Removals

Influent TSS (mg/L) Effluent TSS (mg/L)

TRA – Central WWTP, TXSLR

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lbs.

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/ft2

-day

Figure 10Primary Effluent Study

Daily SLR

Pilot Test SummaryTSS Removal

Media Influent Effluent Removal(mg/L) (mg/L) (%)

RRWRD PA2-13 253 44 80%

RRWRD PES-14 221 26 88%

Oak Hill, WV PES-14 176 31 81%

The Dalles, OR PES-14 206 40 80%

Asheville, NC PES-14 188 24 87%

Presenter

Presentation Notes

TSS removal has been consistently > 80% at all sites tested.

Pilot Test SummaryBOD Removal

Media Influent Effluent Removal(mg/L) (mg/L) (%)

RRWRD PA2-13 220 95 54%

RRWRD PES-14 169 59 64%

Oak Hill, WV PES-14 242 149 40%

The Dalles, OR PES-14 168 65 59%

Ashville, NC PES-14 184 112 40%

Presenter

Presentation Notes

BOD removal varies significantly from site to site depending on how much of the BOD is in a particulate form. A good rule of thumb is between 0.5 and 0.6 mg BOD is removed for each mg of TSS removed.

• Carbon for Biological Nutrient Removal

• Smaller, uniform particle size would benefit BNR

• Stage feed will compensate

• CEC Study 2 will specifically address this issue

• Backwash

• Ranged from 12 to 13% of the applied flow

• Send to thickener prior to digestion

Primary & Primary Effluent FiltrationTypical Questions

Primary & Primary Effluent FiltrationTypical Questions

• Cloth Wear

• Two year PEF operation – no visible wear

• Nearly half year PF operation – no visible wear

• Fats, Oils and Grease (FOG)

• Did not affect the operation or removal performance

• Removal considerations in full scale design

• Grit Was Not a Problem

• Will include storage at the tank bottom

Testing Capabilities

Primary Filtration Piloting

• Rapid Mix Tank

• 2-Stage Floc Chamber

• In-line TSS, Flow

• Lab

• SCADA

• Class 1 Div 2 Group D

Primary Filtration Piloting

Summary

• Primary filtration and wet weather filtration are rapidly emerging technologies in the industry.

• Cloth media filtration technology is uniquely suited for primary filtration and wet weather filtration.

• Aqua-Aerobic Systems has done and continues to do extensive testing to answer questions regarding the technology.

• The technology operates on similar principals to tertiary filtration with improvements to filter design for the primary environment.

Summary

Presenter

Presentation Notes

Saving energy, chemical and time…

Questions

AquaPrime Cloth Media Filtration€¢3,000+ Cloth Media Filters Worldwide • New Plants and...

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