Net Present Worth Calculations in Fine Bubble Aeration Purchase Evaluations

Presented byPresented byPresented byPresented by::::Richard (Dick) K. QuinnRichard (Dick) K. QuinnRichard (Dick) K. QuinnRichard (Dick) K. QuinnSSI Aeration, Inc.SSI Aeration, Inc.SSI Aeration, Inc.SSI Aeration, Inc.Poughkeepsie, NY USAPoughkeepsie, NY USAPoughkeepsie, NY USAPoughkeepsie, NY USA

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Aeration is the heart of a Wastewater Aeration is the heart of a Wastewater Aeration is the heart of a Wastewater Aeration is the heart of a Wastewater Treatment Plant. As the most critical power Treatment Plant. As the most critical power Treatment Plant. As the most critical power Treatment Plant. As the most critical power component of effluent treatment, it is the component of effluent treatment, it is the component of effluent treatment, it is the component of effluent treatment, it is the largest cost associated with owning and largest cost associated with owning and largest cost associated with owning and largest cost associated with owning and operating a WWTP. operating a WWTP. operating a WWTP. operating a WWTP.

In this paper, we will focus primarily on In this paper, we will focus primarily on In this paper, we will focus primarily on In this paper, we will focus primarily on those solutions that claim to offer high those solutions that claim to offer high those solutions that claim to offer high those solutions that claim to offer high efficiency, or in simple terms, low energy efficiency, or in simple terms, low energy efficiency, or in simple terms, low energy efficiency, or in simple terms, low energy costs. It is necessary to clarify, because costs. It is necessary to clarify, because costs. It is necessary to clarify, because costs. It is necessary to clarify, because efficiency can be measured either in efficiency can be measured either in efficiency can be measured either in efficiency can be measured either in terms of wire to water (lbs O2/hpterms of wire to water (lbs O2/hpterms of wire to water (lbs O2/hpterms of wire to water (lbs O2/hp----hr) or hr) or hr) or hr) or SOTE (%/ft). When only SOTE is SOTE (%/ft). When only SOTE is SOTE (%/ft). When only SOTE is SOTE (%/ft). When only SOTE is SOTE (%/ft). When only SOTE is SOTE (%/ft). When only SOTE is SOTE (%/ft). When only SOTE is SOTE (%/ft). When only SOTE is considered, as some manufacturers would considered, as some manufacturers would considered, as some manufacturers would considered, as some manufacturers would prefer, the subject of membrane headloss prefer, the subject of membrane headloss prefer, the subject of membrane headloss prefer, the subject of membrane headloss is ignored, and headloss when new and is ignored, and headloss when new and is ignored, and headloss when new and is ignored, and headloss when new and over time is a leading, if not the leading over time is a leading, if not the leading over time is a leading, if not the leading over time is a leading, if not the leading cause of diffuser inefficiency, in process cause of diffuser inefficiency, in process cause of diffuser inefficiency, in process cause of diffuser inefficiency, in process wastewater.wastewater.wastewater.wastewater.

The potential for savings on energy is The potential for savings on energy is The potential for savings on energy is The potential for savings on energy is certainly there, since 70% of the energy certainly there, since 70% of the energy certainly there, since 70% of the energy certainly there, since 70% of the energy consumed at a typical municipal sewage consumed at a typical municipal sewage consumed at a typical municipal sewage consumed at a typical municipal sewage treatment plant is for aeration. Recently, treatment plant is for aeration. Recently, treatment plant is for aeration. Recently, treatment plant is for aeration. Recently, high efficiency single stage blowers have high efficiency single stage blowers have high efficiency single stage blowers have high efficiency single stage blowers have taken the market by storm, because of a taken the market by storm, because of a taken the market by storm, because of a taken the market by storm, because of a desire to save energy. Clients are willing to desire to save energy. Clients are willing to desire to save energy. Clients are willing to desire to save energy. Clients are willing to desire to save energy. Clients are willing to desire to save energy. Clients are willing to desire to save energy. Clients are willing to desire to save energy. Clients are willing to pay more for those blowers, and there is also pay more for those blowers, and there is also pay more for those blowers, and there is also pay more for those blowers, and there is also often state money available for often state money available for often state money available for often state money available for improvements that reduce energy improvements that reduce energy improvements that reduce energy improvements that reduce energy consumption.consumption.consumption.consumption.

EXPERIENCE:EXPERIENCE:EXPERIENCE:EXPERIENCE:BNRBNRBNRBNRSBRSBRSBRSBRMBRMBRMBRMBRUASBUASBUASBUASBCONVENTIONALCONVENTIONALCONVENTIONALCONVENTIONALEXTENDED AERATIONEXTENDED AERATIONEXTENDED AERATIONEXTENDED AERATIONFIXED FILMFIXED FILMFIXED FILMFIXED FILM

TECHNOLOGY SKILL SET:TECHNOLOGY SKILL SET:TECHNOLOGY SKILL SET:TECHNOLOGY SKILL SET:ACAD2007 2D + 3DACAD2007 2D + 3DACAD2007 2D + 3DACAD2007 2D + 3DBIOWIN SIMULATIONBIOWIN SIMULATIONBIOWIN SIMULATIONBIOWIN SIMULATIONINVENTOR 3DINVENTOR 3DINVENTOR 3DINVENTOR 3DMATHCAD 13MATHCAD 13MATHCAD 13MATHCAD 13FLASH ANIMATIONFLASH ANIMATIONFLASH ANIMATIONFLASH ANIMATIONPROPRIETARY SOFTWAREPROPRIETARY SOFTWAREPROPRIETARY SOFTWAREPROPRIETARY SOFTWARE

JOBSITE EXPERIENCEJOBSITE EXPERIENCEJOBSITE EXPERIENCEJOBSITE EXPERIENCE

REFERENCES:REFERENCES:REFERENCES:REFERENCES:TURNKEY SUPPLY TURNKEY SUPPLY TURNKEY SUPPLY TURNKEY SUPPLY BLOWER ROOM DESIGNBLOWER ROOM DESIGNBLOWER ROOM DESIGNBLOWER ROOM DESIGNPIPING LAYOUTSPIPING LAYOUTSPIPING LAYOUTSPIPING LAYOUTSMULTISTAGE BLOWERSMULTISTAGE BLOWERSMULTISTAGE BLOWERSMULTISTAGE BLOWERSROOTS TYPE BLOWERSROOTS TYPE BLOWERSROOTS TYPE BLOWERSROOTS TYPE BLOWERS

CALCULATIONS:CALCULATIONS:CALCULATIONS:CALCULATIONS:SOTESOTESOTESOTEHEADLOSSHEADLOSSHEADLOSSHEADLOSSBUYOANCY LOADINGBUYOANCY LOADINGBUYOANCY LOADINGBUYOANCY LOADINGBUBBLE ASCENT VELOCITYBUBBLE ASCENT VELOCITYBUBBLE ASCENT VELOCITYBUBBLE ASCENT VELOCITYHEAT TRANSFERHEAT TRANSFERHEAT TRANSFERHEAT TRANSFERDO PROFILE ANALYSISDO PROFILE ANALYSISDO PROFILE ANALYSISDO PROFILE ANALYSISMINIMUM MIXINGMINIMUM MIXINGMINIMUM MIXINGMINIMUM MIXINGLIFE CYCLE COSTLIFE CYCLE COSTLIFE CYCLE COSTLIFE CYCLE COST

WEB (.NET)+ LOCAL CALCULATION SOFTWAREWEB (.NET)+ LOCAL CALCULATION SOFTWAREWEB (.NET)+ LOCAL CALCULATION SOFTWAREWEB (.NET)+ LOCAL CALCULATION SOFTWARE

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WEB (.NET) BASED DRAFTING SOFTWAREWEB (.NET) BASED DRAFTING SOFTWAREWEB (.NET) BASED DRAFTING SOFTWAREWEB (.NET) BASED DRAFTING SOFTWARE

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WEB (.NET) BASED DRAFTING SOFTWAREWEB (.NET) BASED DRAFTING SOFTWAREWEB (.NET) BASED DRAFTING SOFTWAREWEB (.NET) BASED DRAFTING SOFTWARETypical ResultsTypical ResultsTypical ResultsTypical Results

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Aeration 1Anoxic 1 Aeration 3Main Effluent

Influent0Anoxic 2

BIOWIN SIMULATION CAPABILITYBIOWIN SIMULATION CAPABILITYBIOWIN SIMULATION CAPABILITYBIOWIN SIMULATION CAPABILITY

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Primary Sludge

WAS

DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?

90% of failures of a membrane diffused aeration 90% of failures of a membrane diffused aeration 90% of failures of a membrane diffused aeration 90% of failures of a membrane diffused aeration system are caused by system are caused by system are caused by system are caused by failed membranesfailed membranesfailed membranesfailed membranes????

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DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?

EPDM is a very durable material, but it is EPDM is a very durable material, but it is EPDM is a very durable material, but it is EPDM is a very durable material, but it is susceptible to fouling, which may include susceptible to fouling, which may include susceptible to fouling, which may include susceptible to fouling, which may include permanent swelling, shrinking, or crust? permanent swelling, shrinking, or crust? permanent swelling, shrinking, or crust? permanent swelling, shrinking, or crust?

CalciumCalciumCalciumCalciumCarbonateCarbonateCarbonateCarbonate

CalciumCalciumCalciumCalciumSulfateSulfateSulfateSulfate Dairy ProductsDairy ProductsDairy ProductsDairy Products Animal FatAnimal FatAnimal FatAnimal Fat

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CarbonateCarbonateCarbonateCarbonate(lime)(lime)(lime)(lime)

SulfateSulfateSulfateSulfate(gypsum)(gypsum)(gypsum)(gypsum)

PetroleumPetroleumPetroleumPetroleum

Dairy ProductsDairy ProductsDairy ProductsDairy Products

Vegetable OilsVegetable OilsVegetable OilsVegetable OilsAlcoholAlcoholAlcoholAlcohol

DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?

In most cases, the In most cases, the In most cases, the In most cases, the cost of replacing membranes cost of replacing membranes cost of replacing membranes cost of replacing membranes in a tank in a tank in a tank in a tank is is is is higher than the cost of those membraneshigher than the cost of those membraneshigher than the cost of those membraneshigher than the cost of those membranes, when you , when you , when you , when you consider hidden costs?consider hidden costs?consider hidden costs?consider hidden costs?

LABOR & CLEANINGLABOR & CLEANINGLABOR & CLEANINGLABOR & CLEANING OUT OF SERVICEOUT OF SERVICEOUT OF SERVICEOUT OF SERVICE= NO INCOME!!= NO INCOME!!= NO INCOME!!= NO INCOME!!

STEADILY DECLINING STEADILY DECLINING STEADILY DECLINING STEADILY DECLINING PERFORMANCE = ENERGY $$PERFORMANCE = ENERGY $$PERFORMANCE = ENERGY $$PERFORMANCE = ENERGY $$

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DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?

The first PTFE coated frying pan was The first PTFE coated frying pan was The first PTFE coated frying pan was The first PTFE coated frying pan was developed in France by TEFAL in 1954?developed in France by TEFAL in 1954?developed in France by TEFAL in 1954?developed in France by TEFAL in 1954?

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PTFE coated membranes and fEPDM membranes have revolutionized the industry, as they, in different ways

encapsulate the base EPDM membrane, protecting it from heat, creep, calcium fouling, swelling and shrinkage due to fouling, swelling and shrinkage due to plasticizer loss. Advanced membrane technology has solved these fouling

problems for numerous sewage treatment plants

DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?DID YOU KNOW….?

The PTFE coated EPDM and Fluorinated EPDM The PTFE coated EPDM and Fluorinated EPDM The PTFE coated EPDM and Fluorinated EPDM The PTFE coated EPDM and Fluorinated EPDM membranes have outlasted plain EPDM membranes have outlasted plain EPDM membranes have outlasted plain EPDM membranes have outlasted plain EPDM membranesmembranesmembranesmembranes in aggressive applicationsin aggressive applicationsin aggressive applicationsin aggressive applications by a by a by a by a 10:110:110:110:1 margin.margin.margin.margin.

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Do you know what is the true cost of ownership of your Do you know what is the true cost of ownership of your Do you know what is the true cost of ownership of your Do you know what is the true cost of ownership of your aeration system? Net Present Worth calculations and aeration system? Net Present Worth calculations and aeration system? Net Present Worth calculations and aeration system? Net Present Worth calculations and 20 Year Life Cycle Analysis on standard EPDM, PTFE 20 Year Life Cycle Analysis on standard EPDM, PTFE 20 Year Life Cycle Analysis on standard EPDM, PTFE 20 Year Life Cycle Analysis on standard EPDM, PTFE layered EPDM membranes and fEPDM™membranes. layered EPDM membranes and fEPDM™membranes. layered EPDM membranes and fEPDM™membranes. layered EPDM membranes and fEPDM™membranes. The theory of "pay now or pay later" applies to the The theory of "pay now or pay later" applies to the The theory of "pay now or pay later" applies to the The theory of "pay now or pay later" applies to the choice in membranes for the purpose of ROI. The choice in membranes for the purpose of ROI. The choice in membranes for the purpose of ROI. The choice in membranes for the purpose of ROI. The payback reaches in some cases into the millions of payback reaches in some cases into the millions of payback reaches in some cases into the millions of payback reaches in some cases into the millions of dollars, Since the newer "state of the art" membranes dollars, Since the newer "state of the art" membranes dollars, Since the newer "state of the art" membranes dollars, Since the newer "state of the art" membranes require less cleaning and can be restored to their require less cleaning and can be restored to their require less cleaning and can be restored to their require less cleaning and can be restored to their require less cleaning and can be restored to their require less cleaning and can be restored to their require less cleaning and can be restored to their require less cleaning and can be restored to their original performance, you can anticipate the oxygen original performance, you can anticipate the oxygen original performance, you can anticipate the oxygen original performance, you can anticipate the oxygen transfer efficiency (OTE) to sustain itself over the life transfer efficiency (OTE) to sustain itself over the life transfer efficiency (OTE) to sustain itself over the life transfer efficiency (OTE) to sustain itself over the life of the membrane! of the membrane! of the membrane! of the membrane!

PTFE LAYERED MEMBRANES PTFE LAYERED MEMBRANES PTFE LAYERED MEMBRANES PTFE LAYERED MEMBRANES

Since the 70’s EPDM has been the standard Since the 70’s EPDM has been the standard Since the 70’s EPDM has been the standard Since the 70’s EPDM has been the standard membrane material in wastewater treatment membrane material in wastewater treatment membrane material in wastewater treatment membrane material in wastewater treatment applications. However, even the best EPDM in the applications. However, even the best EPDM in the applications. However, even the best EPDM in the applications. However, even the best EPDM in the market is susceptible to fouling which may include market is susceptible to fouling which may include market is susceptible to fouling which may include market is susceptible to fouling which may include swelling, shrinking or crust. Municipalities and swelling, shrinking or crust. Municipalities and swelling, shrinking or crust. Municipalities and swelling, shrinking or crust. Municipalities and industries had to struggle with this for many years, industries had to struggle with this for many years, industries had to struggle with this for many years, industries had to struggle with this for many years, until now.until now.until now.until now.

Developed in 2000, our PTFE layered membrane is Developed in 2000, our PTFE layered membrane is Developed in 2000, our PTFE layered membrane is Developed in 2000, our PTFE layered membrane is Developed in 2000, our PTFE layered membrane is Developed in 2000, our PTFE layered membrane is Developed in 2000, our PTFE layered membrane is Developed in 2000, our PTFE layered membrane is proven technology. The PTFE layered membranes proven technology. The PTFE layered membranes proven technology. The PTFE layered membranes proven technology. The PTFE layered membranes significantly reduces surface fouling on the significantly reduces surface fouling on the significantly reduces surface fouling on the significantly reduces surface fouling on the membranes to such extent that, in most cases, membranes to such extent that, in most cases, membranes to such extent that, in most cases, membranes to such extent that, in most cases, cleaning frequency is reduced by a factor of 5 to 10 cleaning frequency is reduced by a factor of 5 to 10 cleaning frequency is reduced by a factor of 5 to 10 cleaning frequency is reduced by a factor of 5 to 10 as compared to standard EPDM membranes from the as compared to standard EPDM membranes from the as compared to standard EPDM membranes from the as compared to standard EPDM membranes from the industry’s leading manufacturers.industry’s leading manufacturers.industry’s leading manufacturers.industry’s leading manufacturers.

Many major municipalities worldwide are using PTFE Many major municipalities worldwide are using PTFE Many major municipalities worldwide are using PTFE Many major municipalities worldwide are using PTFE due to the anticipated life cycle cost benefits and, in due to the anticipated life cycle cost benefits and, in due to the anticipated life cycle cost benefits and, in due to the anticipated life cycle cost benefits and, in industrial applications; it has become the industry industrial applications; it has become the industry industrial applications; it has become the industry industrial applications; it has become the industry standard for pulp and paper, dairy, food and beverage, standard for pulp and paper, dairy, food and beverage, standard for pulp and paper, dairy, food and beverage, standard for pulp and paper, dairy, food and beverage, landfill leachate among others.landfill leachate among others.landfill leachate among others.landfill leachate among others.

fEPDM™ MEMBRANES fEPDM™ MEMBRANES fEPDM™ MEMBRANES fEPDM™ MEMBRANES

Fluorine is the most aggressive element, hence when Fluorine is the most aggressive element, hence when Fluorine is the most aggressive element, hence when Fluorine is the most aggressive element, hence when fluorine attaches to carbon on the membrane surface; fluorine attaches to carbon on the membrane surface; fluorine attaches to carbon on the membrane surface; fluorine attaches to carbon on the membrane surface; it removes most of the passages for solvents, fats and it removes most of the passages for solvents, fats and it removes most of the passages for solvents, fats and it removes most of the passages for solvents, fats and greases to enter the membrane, and for plasticizers to greases to enter the membrane, and for plasticizers to greases to enter the membrane, and for plasticizers to greases to enter the membrane, and for plasticizers to leave the membrane. We treat the entire surface of our leave the membrane. We treat the entire surface of our leave the membrane. We treat the entire surface of our leave the membrane. We treat the entire surface of our fEPDM™ membranes including inner slits to create fEPDM™ membranes including inner slits to create fEPDM™ membranes including inner slits to create fEPDM™ membranes including inner slits to create 360360360360� protection including the air side.protection including the air side.protection including the air side.protection including the air side.

In recent comparative accelerated extraction test by In recent comparative accelerated extraction test by In recent comparative accelerated extraction test by In recent comparative accelerated extraction test by ASTM standards, fEPDM showed 30% less plasticizer ASTM standards, fEPDM showed 30% less plasticizer ASTM standards, fEPDM showed 30% less plasticizer ASTM standards, fEPDM showed 30% less plasticizer loss than a regular EPDM membrane in hot acetone loss than a regular EPDM membrane in hot acetone loss than a regular EPDM membrane in hot acetone loss than a regular EPDM membrane in hot acetone loss than a regular EPDM membrane in hot acetone loss than a regular EPDM membrane in hot acetone loss than a regular EPDM membrane in hot acetone loss than a regular EPDM membrane in hot acetone over 16 hours. Normally, this extraction test is capable over 16 hours. Normally, this extraction test is capable over 16 hours. Normally, this extraction test is capable over 16 hours. Normally, this extraction test is capable of removing all plasticizers from a membrane. of removing all plasticizers from a membrane. of removing all plasticizers from a membrane. of removing all plasticizers from a membrane.

In general, fEPDM™ membranes show great promise in In general, fEPDM™ membranes show great promise in In general, fEPDM™ membranes show great promise in In general, fEPDM™ membranes show great promise in hot climates, industrial wastewater with presence of hot climates, industrial wastewater with presence of hot climates, industrial wastewater with presence of hot climates, industrial wastewater with presence of solvents, and anywhere clients would prefer to change solvents, and anywhere clients would prefer to change solvents, and anywhere clients would prefer to change solvents, and anywhere clients would prefer to change membranes less frequently!membranes less frequently!membranes less frequently!membranes less frequently!

PTFE FINE BUBBLE DIFFUSER MEMBRANESPTFE FINE BUBBLE DIFFUSER MEMBRANESPTFE FINE BUBBLE DIFFUSER MEMBRANESPTFE FINE BUBBLE DIFFUSER MEMBRANESPTFE FINE BUBBLE DIFFUSER MEMBRANESPTFE FINE BUBBLE DIFFUSER MEMBRANESPTFE FINE BUBBLE DIFFUSER MEMBRANESPTFE FINE BUBBLE DIFFUSER MEMBRANES

The PTFE ( Polytetrafluoroetyhylene) layered EPDM discThe PTFE ( Polytetrafluoroetyhylene) layered EPDM discThe PTFE ( Polytetrafluoroetyhylene) layered EPDM discThe PTFE ( Polytetrafluoroetyhylene) layered EPDM discand tube diffuser membranes combine the reliability of EPDM and tube diffuser membranes combine the reliability of EPDM and tube diffuser membranes combine the reliability of EPDM and tube diffuser membranes combine the reliability of EPDM with outstanding anti fouling resistance of PTFE.with outstanding anti fouling resistance of PTFE.with outstanding anti fouling resistance of PTFE.with outstanding anti fouling resistance of PTFE.

Benefits of PTFE layer are:Benefits of PTFE layer are:Benefits of PTFE layer are:Benefits of PTFE layer are:

• Resistance to fouling and calcium scalingResistance to fouling and calcium scalingResistance to fouling and calcium scalingResistance to fouling and calcium scaling• Extended lifeExtended lifeExtended lifeExtended life• Reduces cleaning 6Reduces cleaning 6Reduces cleaning 6Reduces cleaning 6----10 times compared to EPDM10 times compared to EPDM10 times compared to EPDM10 times compared to EPDM

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• Reduces cleaning 6Reduces cleaning 6Reduces cleaning 6Reduces cleaning 6----10 times compared to EPDM10 times compared to EPDM10 times compared to EPDM10 times compared to EPDM• Outstanding chemical resistanceOutstanding chemical resistanceOutstanding chemical resistanceOutstanding chemical resistance• Outstanding resistance to fats, oils and greasesOutstanding resistance to fats, oils and greasesOutstanding resistance to fats, oils and greasesOutstanding resistance to fats, oils and greases• Outstanding resistance to hydrocarbons, fuels,Outstanding resistance to hydrocarbons, fuels,Outstanding resistance to hydrocarbons, fuels,Outstanding resistance to hydrocarbons, fuels,

and solventsand solventsand solventsand solvents

“PTFE IS THE BEST THING TO HAPPEN TO“PTFE IS THE BEST THING TO HAPPEN TO“PTFE IS THE BEST THING TO HAPPEN TO“PTFE IS THE BEST THING TO HAPPEN TO“PTFE IS THE BEST THING TO HAPPEN TO“PTFE IS THE BEST THING TO HAPPEN TO“PTFE IS THE BEST THING TO HAPPEN TO“PTFE IS THE BEST THING TO HAPPEN TOFINE BUBBLE AERATION SYSTEMS”FINE BUBBLE AERATION SYSTEMS”FINE BUBBLE AERATION SYSTEMS”FINE BUBBLE AERATION SYSTEMS”FINE BUBBLE AERATION SYSTEMS”FINE BUBBLE AERATION SYSTEMS”FINE BUBBLE AERATION SYSTEMS”FINE BUBBLE AERATION SYSTEMS”

Dave Redmon, Eng.Dave Redmon, Eng.Dave Redmon, Eng.Dave Redmon, Eng.Dave Redmon, Eng.Dave Redmon, Eng.Dave Redmon, Eng.Dave Redmon, Eng.

SNAPPY SADDLE™SNAPPY SADDLE™SNAPPY SADDLE™SNAPPY SADDLE™SNAPPY SADDLE™SNAPPY SADDLE™SNAPPY SADDLE™SNAPPY SADDLE™

• Each diffuser has a Each diffuser has a Each diffuser has a Each diffuser has a singlesinglesinglesingle seal on top of the headers seal on top of the headers seal on top of the headers seal on top of the headers and can be installed by 1 person rapidlyand can be installed by 1 person rapidlyand can be installed by 1 person rapidlyand can be installed by 1 person rapidly

•Quick connection Quick connection Quick connection Quick connection –––– low headlow headlow headlow head----loss loss loss loss –––– high SOTE high SOTE high SOTE high SOTE ––––compression molded tube membranescompression molded tube membranescompression molded tube membranescompression molded tube membranes

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A study of PTFE vs EPDM vs fEPDM should considerA study of PTFE vs EPDM vs fEPDM should considerA study of PTFE vs EPDM vs fEPDM should considerA study of PTFE vs EPDM vs fEPDM should consider

(1)(1)(1)(1)Temperature resistance, (2)Calcium fouling, Temperature resistance, (2)Calcium fouling, Temperature resistance, (2)Calcium fouling, Temperature resistance, (2)Calcium fouling, (3) Swelling, (4) Plasticizer extraction, (3) Swelling, (4) Plasticizer extraction, (3) Swelling, (4) Plasticizer extraction, (3) Swelling, (4) Plasticizer extraction, (5) Ease of cleaning, (6) Creep, (7) Empirical data(5) Ease of cleaning, (6) Creep, (7) Empirical data(5) Ease of cleaning, (6) Creep, (7) Empirical data(5) Ease of cleaning, (6) Creep, (7) Empirical data

INDEPENDENT NONINDEPENDENT NONINDEPENDENT NONINDEPENDENT NON----STEADY STATE TESTINGSTEADY STATE TESTINGSTEADY STATE TESTINGSTEADY STATE TESTING

Determination of SOTE of SSI Airflex Diffusers per ASCE Determination of SOTE of SSI Airflex Diffusers per ASCE Determination of SOTE of SSI Airflex Diffusers per ASCE Determination of SOTE of SSI Airflex Diffusers per ASCE ATC, SA Barcelona SpainATC, SA Barcelona SpainATC, SA Barcelona SpainATC, SA Barcelona SpainRedmon Engineering, Milwaukee, USARedmon Engineering, Milwaukee, USARedmon Engineering, Milwaukee, USARedmon Engineering, Milwaukee, USA

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COMPOUND DEVELOPMENTCOMPOUND DEVELOPMENTCOMPOUND DEVELOPMENTCOMPOUND DEVELOPMENTCOMPOUND DEVELOPMENTCOMPOUND DEVELOPMENTCOMPOUND DEVELOPMENTCOMPOUND DEVELOPMENT

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Same slit pattern, different compounds = Same slit pattern, different compounds = Same slit pattern, different compounds = Same slit pattern, different compounds = different bubble size & distribution different bubble size & distribution different bubble size & distribution different bubble size & distribution

ININININ----HOUSE TESTING & REPORTSHOUSE TESTING & REPORTSHOUSE TESTING & REPORTSHOUSE TESTING & REPORTS

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AERATION TANK DESIGN

TANK DESCRIPTION Aeration

Design Basis (1=BOD, 2=SOR, 3=AOR, 4=COD) 3.00

AOR, Lbs/Day 18,553.00

TSS, mg/l, influent (Not Used in Clalculations) 0.00

TDS, mg/l, influent (For Beta Determination) 0.00

NH3, mg/l, influent 58.50

PO4, mg/l, influent (Not Used In Calculation) 2.27

Barometric Pressure, psia 13.80

Flow, MGD, Raw Influent 0.07

Flow, GPM 49.92

Non-Nutrient Excess NH3, mg/l NA

Additional Nutrient NH3, Reqd, PPD NA

Non-Nutrient Excess PO4, mg/l NA

Additional Nutrient PO4, Reqd, PPD NA

BOD5 Loading, #/day NA

NH3 Loading, #/day NA

PO4 Loading, #/day NA

DESIGN INPUT

Aeration Time/Day (hrs) 24.00

lb O2/lb BOD5 Required 1.20

lb O2/lb NH3 Required 4.70

MLSS, mg/l 4,000.00

Basin Liquid Depth (ft.) 24.00

Basin Volume, mil. gal. 0.03

AOR Req'd #O2/day 18,553.00

AOR Req'd #O2/hr 773.04

O2 Uptake Rate, mg/l/hr 2,726.20

Basin Volume, mil. lb. 0.28

Basin Volume, Ft³ 4,544.23

Basin Floor Area - Ft² 189.34

Basin Retention Time (d) 0.47

Basin Retention Time (hr) 11.35

F/m ratio NA

Solid Inventory, #TSS 1,134.24

Wastewater Temperature, �C 20.00

Diffuser Water Depth, ft 23.00

Alpha (a) Factor 0.50

Basin DO conc. (Cl), mg/l 2.00

Beta (ß) Factor 0.95

Equivalent Depth Factor 0.35

Theta (Q) Factor 1.024

C* (surface saturation, Std. Meth.) 9.09 C* (surface saturation, Std. Meth.) 9.09

Csw, mg/l, Site Basin Saturation 10.69

Css, mg/l, Std. Basin Saturation 11.25

ß*Csw, mg/l 10.16

Std. O2 Transfer Rate, #O2/day 51,154.19

Std. O2 Transfer Rate, #O2/hr 2,131.42

Std. O2 Transfer Rate, KgO2/hr 968.83

KLa20 - /hr 660.02

DIFFUSER QUANTITY, FLOW & PRESSURE

32.08%

Tank Length (m),(enter 0 if circular) 34.29

Tank Width (m), (enter 0 if circular) 30.50

Circular Tank Dia, m (enter 0 if rectangular) 0.00

Nm3/hr/meter tube 3.85

SOR IN KG/HR 968.83

DWD/m 7.01

Normal Conditions in Deg C 0.00Normal Conditions in Deg C 0.00

Max. ambient temp deg C 20.00

Ambient pressure PSIA 14.70

Combined motor/blower efficiency 70%

OTE/% per m 6.76

Airflow m3/hr 7381.82

Diffuser quantity 1917.36

Blower Pressure 11.60

Blower efficiency 65%

WPs HP 270.29

WPs kW 201.56

grO2/m3 131.25

KgO2/kWh 4.81

Qs/Qs 0.93

Qn 6877.95

Wpa HP 251.84

Calculated Floor Coverage 32.08%

Circular Tank floor coverage NA

Minimum Mixing, m3/hr 2305

Comparable Surface Aerator WP a 0

Variance Diff vs S.A. WP a NAVariance Diff vs S.A. WP a NA

Cost/kWH of energy, USD 0.10

Cost to run Diffuser system 1 year USD $164,511

Cost to run Surf. Aer system 1 year USD $0

Diffuser cost savings/1 year NA

Diffuser cost savings/10 years NA

DIFFUSER QUANTITY 1917

AIRFLOW in Nm3/hr 7382

AIRFLOW in SCFM 4344

PRESSURE in mbar 800

PRESSURE in PSIG 11.60

DIFFUSER DENSITY 32.08%

THANK YOU!THANK YOU!THANK YOU!THANK YOU!THANK YOU!THANK YOU!THANK YOU!THANK YOU!

For over 15 years SSI has been a top tier U.S manufacturer of For over 15 years SSI has been a top tier U.S manufacturer of For over 15 years SSI has been a top tier U.S manufacturer of For over 15 years SSI has been a top tier U.S manufacturer of high efficiency, durable, and reliable aeration systems for high efficiency, durable, and reliable aeration systems for high efficiency, durable, and reliable aeration systems for high efficiency, durable, and reliable aeration systems for municipal and industrial WWTP. We are dedicated to the rapid municipal and industrial WWTP. We are dedicated to the rapid municipal and industrial WWTP. We are dedicated to the rapid municipal and industrial WWTP. We are dedicated to the rapid advancement of diffuser technology through having the best advancement of diffuser technology through having the best advancement of diffuser technology through having the best advancement of diffuser technology through having the best R&D program in the industry, the latest design tools and R&D program in the industry, the latest design tools and R&D program in the industry, the latest design tools and R&D program in the industry, the latest design tools and continuous improvement of the performance, reliability and continuous improvement of the performance, reliability and continuous improvement of the performance, reliability and continuous improvement of the performance, reliability and efficiency of our diffusers. Today, SSI is recognized as an efficiency of our diffusers. Today, SSI is recognized as an efficiency of our diffusers. Today, SSI is recognized as an efficiency of our diffusers. Today, SSI is recognized as an unquestionable industry leader in technology, innovation and unquestionable industry leader in technology, innovation and unquestionable industry leader in technology, innovation and unquestionable industry leader in technology, innovation and high value solutions.high value solutions.high value solutions.high value solutions.

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YOUR FUTURE PROJECTS.YOUR FUTURE PROJECTS.YOUR FUTURE PROJECTS.YOUR FUTURE PROJECTS.YOUR FUTURE PROJECTS.YOUR FUTURE PROJECTS.YOUR FUTURE PROJECTS.YOUR FUTURE PROJECTS.