odor & corrosionodor & corrosion control in … and corrosion control in... · collection...

Odor & CorrosionOdor & CorrosionOdor & Corrosion Control in Collection

Odor & Corrosion Control in CollectionCollection Systems

b J B d

Collection Systems

b J B dby Jay Boydby Jay Boyd

About Anue Water TechnologiesAbout Anue Water Technologies• Established in 2006• Based in Vista (San Diego), CA

D i / f t / k t• Design / manufacture / market systems for…

– Odor and Corrosion control for wastewater collection

– Fat, Oil and Grease (FOG) remediation in wet wellsremediation in wet wells

Collection System Odor & Corrosion…Collection System Odor & Corrosion…• Odor and Corrosion: Annual

Estimated Costs in US– Odor control: $500 MM– Infrastructure repair: $15 BB

• Corrosion is Expensive Odor is Political…COMPLAINTS

B i l f– Businesses- loss of customers– Residences- lower home values

$$$$

Type & Odor SourceType & Odor SourceP i i l Od T S f Od• Principal Odor Types Source of Odor– Sulfides Collection system – Ammonia Influent sources

H2SAmmonia Influent sources

– VOCs Influent sources • Odor is expressed from…

– Manholes– Lift stations

Valves– Valves– Vents

• Odor usually occurs with biological activity deep in the Odor usually occurs with biological activity deep in the collection system…

About Hydrogen Sulfide (HAbout Hydrogen Sulfide (H22S)S)About Hydrogen Sulfide (HAbout Hydrogen Sulfide (H22S)S)

H2SMost Common Sulfide in Wastewater: H2S

– Gaseous phase molecule– Soluble in water- carried by wastewater flow– Odorous- rotten eggs– Highly corrosive- precursor to H2SO4 (sulfuric acid) Highly corrosive precursor to H2SO4 (sulfuric acid)

formation– Dangerous in confined space

H Eff tHuman Effects– Detectable < 20 parts per billion– 25 ppm strong odor– 100 ppm with 5 minutes of exposure

• sense of smell loss • lung irritation with coughingg g g

– 500 ppm loss of consciousness and life threatening for exposures > 30 minutes

– 1000 ppm imminent threat to life

Aerobic vs. Anaerobic EnvironmentAerobic vs. Anaerobic EnvironmentAerobic vs. Anaerobic EnvironmentAerobic vs. Anaerobic Environment• Two slime layers compete for

nutrientsPipe

Pipe & Slime Layers

• Dissolved oxygen (DO) determines which layer is favored…

>1 mg/l O favors aerobic layer

Pipe

Aerobic layer Anaerobic SRB layer

– >1 mg/l O2 favors aerobic layer– < 1 mg/l favors anaerobic layer with

Sulfate Reducing Bacteria (SRB)Nutrients

in flow

• Anaerobic layers thrive with – low DO– low pH– warmer temperatures

Anaerobic (SRB): Desulfovibrio desulfericans bacteria

Sulfide CycleSulfide CycleSulfide CycleSulfide Cycle• Sulfate (SO4) commonly found in water where:

SO4 + organic matter S= + H2O + CO2 S= + 2H+ HH22SS• Sulfides are produced through anaerobic respiration:

anaerobic

bacteria

Sulfides are produced through anaerobic respiration:– Sulfates and organic matter are the resources

bPi H S

H²SSulfide

SO²Sulfites

SO3=

Anaerobic Bacteria

Aerobic Bacteria Pipe

Aerobic layer Anaerobic SRB layer

H2S

S=SO3=

tial

Che

m.

Oxi

dati

on

Sulf

ur

Bact

eriaFlow

Elemental

SO3

Sulfates

Part O B

S SO4=Sulfur Oxid. Bacteria

Chem. Oxid. H2SO4 Manuf

Conventional Odor Treatment Methods Conventional Odor Treatment Methods Conventional Odor Treatment Methods Conventional Odor Treatment Methods Vapor Phase Treatment: • Focus on head space with extraction or infusion

Liquid Phase Treatment:• Focus on flow with biological or chemicals

Vapor Phase: Vapor Phase: Extraction MethodsExtraction MethodsVapor Phase: Vapor Phase: Extraction MethodsExtraction MethodsH d S E t tiHead Space Extraction:

– ExtractsTreats– Treats

– Exhausts• Chemical or biological• Chemical or biological

treatment• Systems specified forSystems specified for

air volume and H2S concentration

Vapor Phase: Vapor Phase: Extraction ConsiderationsExtraction ConsiderationsVapor Phase: Vapor Phase: Extraction ConsiderationsExtraction Considerations

• Costs – Equipment Capital Costs

• Moderate to high procurement costsModerate to high procurement costs– Site Costs

• Engineering, permits & constructionR i t– Recurring costs

• Electrical, water, media, filters, maintenance

• Limitations– H2S peak concentrations can overwhelm

treatment– Capital & operating costs– Sites must accommodate large footprint

No H S source treatment– No H2S source treatment– No corrosion treatment

Vapor Phase: Vapor Phase: Head Space Infusion MethodsHead Space Infusion MethodsVapor Phase: Vapor Phase: Head Space Infusion MethodsHead Space Infusion Methods

Head Space InfusingChemical applied to head space

Non-Reactive Reactive

Masks Treats

Non-ReactiveMasking: fragrance used to mask odor

Reactive TreatmentReactive: chemicals

reactively oxidize with more pleasant

scent H2S in head space

Vapor Phase: Vapor Phase: Infusion MethodsInfusion MethodsVapor Phase: Vapor Phase: Infusion MethodsInfusion Methods

• Ozone mist reaction– Treatment is an ozone, air and

water “mist”water “mist”– Highly effective oxidizer

• LimitationsLimitations – No H2S source treatment

• Treats head space not flowO i t– No corrosion control

• H2S dissolved in flow creates downstream

Ozone-air-water vapor form a mist in the head space

creates downstream corrosion potential

– Dosing control limitedg• Too much can damage

infrastructure

Liquid Phase: Liquid Phase: Biological MethodsBiological MethodsLiquid Phase: Liquid Phase: Biological MethodsBiological Methods• Two types of biological

treatmentsNew bacteria added– New bacteria added

– Bio-chemical additives to enhance resident “good” biology

• Advantages– Perceived as “green” versus chemicals– Fewer side effects than chemicals– Fewer side effects than chemicals

• Limitations– Treatment takes weeks/months to take

effect– Tests are prolonged & expensive– Sensitive to chemical changes inSensitive to chemical changes in

collections system– High cost compared to chemicals

Liquid Phase: Liquid Phase: Chemical TreatmentsChemical TreatmentsLiquid Phase: Liquid Phase: Chemical TreatmentsChemical Treatments• Sulfide scavengers- Ferric (Iron) Salts

– Ferric Chloride FeCl3 / Ferrous Chloride FeCl2Advantages• Advantages– Low cost per gallon $0.70 to $1.00/ gallon– Proven effective for H2S odor2

Limitations Highly corrosive to pipes and equipment

2FeCl3 + 3H2S ↔ Fe2S3(s) + 6HCl Fe2S3(s) forms precipitants & sediments Aggressively removes dissolved oxygen from the water

Ferric chloride treated line with signature black color- Oxygen depleted

gg y yg4Fe2+ + 3O2 ↔ Fe2O3(s) (rust)

Low DO and pH increases H2S production & release Does not treat non-sulfide odors i e VOC ammonia Does not treat non-sulfide odors i.e., VOC, ammonia

Liquid Phase: Liquid Phase: Chemical TreatmentsChemical TreatmentsLiquid Phase: Liquid Phase: Chemical TreatmentsChemical Treatments• Sulfide oxidizer- hydrogen peroxide

H2O2Powerful & effective oxidizer

H d

– Powerful & effective oxidizerH2O2 + H2S → 2H2O + S0 (Neutral to Acidic)

• AdvantagesHydrogen Peroxide

g– Oxidizes sulfides and…– Increases dissolved oxygen (DO)

Limitations• Limitations– Cost at $3.50 (35%) to $5.00 (50%) per

gallon (national average)– Worker must be protected – Needs special site containment– Requires site storage and regular q g g

deliveries

Liquid Phase: Liquid Phase: Chemical TreatmentsChemical TreatmentsLiquid Phase: Liquid Phase: Chemical TreatmentsChemical Treatments• pH control: Magnesium Hydroxide

Mg(OH)2– Magnesium hydroxide: g y

• “Milk of Magnesia”, “Thioguard” – Mechanism:

• pH of 9 “holds” H2S in solutionp 2

– ~$2.50 / gallon (national average)

• AdvantagesRelatively safe to handle– Relatively safe to handle

• Limitations– Does not react with H2S– Tanks must be mixed or even heated to avoid

hardening– Users report increased issues with pump

cloggingclogging– No effect on ammonias or VOCs

Thioguard is a registered trademark of Martin Marietta

Liquid Phase: Liquid Phase: Chemical TreatmentsChemical TreatmentsLiquid Phase: Liquid Phase: Chemical TreatmentsChemical Treatments• SO4 (sulfate) substitutes

SO4 + organic matter S= + H2O + CO2 S= + 2H+ H2Sanaerobic

bacteria

– Calcium nitrate Ca(NO3)2, saltpeter, “Bioxide” (Siemens)– ~$2.00 / gallon (national average)

• Advantages• Advantages– Safe for handling & low toxicity– Slower reaction helps with downstream treatment

“Bioxide” widely used & considered low risk decision– “Bioxide” widely used & considered low risk decision

• Limitations– Feeds the anaerobic layer & may require higher usage over

time– Increases nitrate levels that may impact WWTP– Increases grease mat formation rates in wet wells

• Requires frequent cleaning

Bioxide is a registered trademark of Siemens

Emerging Emerging TechnologiesTechnologiesEmerging Emerging TechnologiesTechnologiesTechnologiesTechnologiesApplying Applying TechnologiesTechnologiesApplying Applying Oxygen & Ozone Oxygen & Ozone Oxygen & Ozone Oxygen & Ozone

Oxygen & Ozone: Multiple ActionsOxygen & Ozone: Multiple ActionsSO + O SO + O

SO² & SO3=

(S lfit )

2SO2 + O2 2SO3H2S + O3 SO2 + H2O

SO2 + O3 SO3 + O2

SO + O SO + OH2S

(Sulfides)

(Sulfites)

SO

2SO3+ O2 2SO4

SO3+ O3 SO4 + O2

O3 O2

SO4(Sulfates)

HH22SS

Primary Beneficial Actions of O2 and O3• Oxidation

• Excellent: Ozone• Excellent: Ozone• Good: Oxygen

• Dissolved Oxygen Increase• Excellent: Oxygen• Good: Ozone

Copyright© Anue Water Technologies, Inc. 2010 U.S. Provisional Application No. 61/244,840 for IN-SITU LIQUID PHASE OZONE ODOR CONTROL

About OzoneAbout OzoneO (O ) t i t i h l l• Ozone (O3): tri-atomic, gaseous phase oxygen molecule

• Ozone scent: sharp, sweet, fresh, chlorine-like, thunderstorm• Very High oxidizing potential @ 2.07V (fourth highest)y g g p @ ( g )

– Hydrogen peroxide (1.77V)– Chlorine (1.36V)– Oxygen (1.23V) O2 Oyg ( )

• Half-life– Up to 3 days in air– Up to 30 minutes in water (forms H-O- @2.80V) OUp to 30 minutes in water (forms H O @2.80V)

• Half life in wastewater- minutes to seconds• Ozone wide-spectrum oxidizer effective with:

VOCs other sulfides fats oils

O3

– VOCs, other sulfides, fats, oils

• Ozone solubility at 770F (250F) & 1 atmosphere (14.7psi)– Ozone: 109 mg/liter

O 8 /lit ( t d)– Oxygen: 8 mg/liter (aerated)– Ozone: 13x more soluble than oxygen

FORSe 5 Odor & Corrosion SystemsFORSe 5 Odor & Corrosion Systems

Three Applications of FORSe 5 systems…Three Applications of FORSe 5 systems…

FORCE MAINSSystemic T t t

LIFT STATIONSLocalized T t tTreatment Treatment

COMBINATIONLocalized & Systemic

Treatment

Liquid Phase Treatment Liquid Phase Treatment Liquid Phase Treatment Liquid Phase Treatment

1. Create side stream with untreated flow2. Dissolve (infuse) O2 & O3 into side stream ( ) 2 3

Create 2 to 5 micron (0.00008” to 0.0002”) “micro-bubbles”

3. Return treated flow into untreated flowTreated flow

Ripper Pump

Booster Pump

Flow

Force Main Infusion Side Stream

Wet Well Infusion Side Stream

Localized Treatment: Lift StationLocalized Treatment: Lift StationS t C t l O2 & O3 GeneratorsSystem Control

O & OO2 & O3

On Timer

Communication• Browser• Cellular

Wet Well Treatment Recirculation

Wet Well InfusionPoint

O2 & O3

• SCADA

Treatment RecirculationPoint

Lift Station Dual Phase TreatmentLift Station Dual Phase TreatmentPrimary Action: Liquid PhaseDissolved O2 & O3 Vapor PhaseDissolved O2 & O3delivered back to wet well (liquid

h )

Vapor Phase

phase)

Secondary Action: Vapor Phase Fractional treatment is released into

Liquid Phase

is released into headspace (vapor phase)

Force Force Main: Main: Systemic TreatmentSystemic Treatment

O Output O2 Output 100% Duty

Cycle

O Output FloSpecTM

S

Oxygen & OzoneGenerator

O3 Output Only with

Wastewater Flow

System Control

Communication:Browser

Control

CellularSCADA Flow Sensor

Force Main: Upstream Treatment with

Total System EffectInfuser

Flow

Treatment Site

Remediation Site

Combination Local & Combination Local & Systemic TreatmentSystemic Treatment

O2 Output 100% Duty

Cycle

O3 Output FloSpecTM

SOxygen & Ozone

Generator

Only with Wastewater

Flow

System Control

Communication:BrowserCellularSCADA

Control

Flow Sensor

Infuser

Force Main Infuser FactorsForce Main Infuser FactorsTYPE FM

Length(feet

FM Diameter

AverageDaily Flow

H2S O2Uptake

FM Pressure

(psi)

Force Main Access

Needed for Tap

IFM-100) to22,000

(4 miles)

≤ 12” to 1 MGD

Low to

moderate

Low to

moderate

to 70 Limited Access≤ 3’(4 miles) ≤ 3’

V1 to 22,000

≤ 16” to 1 MGD

Low to

high

Low to

moderate

to 70 Limited Access22,000

(4 miles)MGD high moderate Access

≤ 1’

V2S to ≥ 12” to 20 Low to Low to to 120 ≥ FM 7’ 27,000

(5 miles)MGD very high very high inlet to

outlet

V2H to ≥ 12” To 20 L t L t 100 to ≥ FM 7’V2H to27,000

(5 miles)

≥ 12” To 20 MGD

Low to

very high

Low to

very high

100 to 200

≥ FM 7’ inlet to outlet

Single Point Tap (IFM-100)Single Point Tap (IFM-100)Control

Compressors Oxygen OzoneAir

Force Main

Infuser

Selection VariablesP 70 i• Pressure to 70 psi

• FM Length to 22,000 ft (4.2 miles)• FM diameter ≤ 12”• Avg Flow ≤ 1 MGD• Avg. Flow ≤ 1 MGD• H2S low to moderate• Access to FM 3 ft

Dual Tap Infuser Systems Dual Tap Infuser Systems V2xV2xDual Tap Infuser Systems Dual Tap Infuser Systems V2xV2xSelection Variables• Pressure to 120 psi (V2S)• Pressure to 200 psi (V2H)

FM l th t 27 000 ft• FM length to 27,000 ft• FM diameter ≥ 12”Control

• Avg. Flow ≤ 20 MGD

Compressors Oxygen OzoneAir

O2O2 / O3

MGD• H2S low to very

high• Access ≥ FM 7’

Ripper Pump

Booster Pump

2 Access ≥ FM 7• Tap 2” to 6

Force MainFlow

7 feet

Single Point Infuser System Single Point Infuser System V1V1

FORSe 5O / O C t l

Selection Variables• Pressure to 70 psi• FM length toO2 / O3

GeneratorControl • FM length to

22,000 ft• FM diameter ≤ 16”

O2 / O3

VenturiInfuser

• Avg. Flow ≤ 1 MGD• H2S low to

moderateLift Station Treated Flow

Return

Untreated

moderate• Access to FM 4”

Untreated Flow to Infuser

Grinder Pump

Fast Fast Action InfusionAction InfusionFast Fast Action InfusionAction Infusion

Untreated wastewater

Treatment: 2 minutes

Treatment: 5 minutes

HydroZoneTM Oxygen & Ozone GeneratorHydroZoneTM Oxygen & Ozone GeneratorOzone GeneratorOzone Generator

5% weight O3

Oxygen Concentrator94% to 96%

IFM-100 Infuser

N2 SeparationPressure Swing

94% to 96%

Ambient Air

Pressure Swing Adsorption

HDEP Infuser

Fil

H2O Vapor

Separato

Compressor

Filterp

r

System Configurations: Small & MediumSystem Configurations: Small & Medium

Ozone t

AC

Control & electrical panel

Ozone

Wall mount, rail mount free standing or skid packing

72”generator Ozone

GeneratorOxygen

generator

Compressor

p g

NEMA 4 standard or NEMA 4X option

60” 36”

Air Intake

Compressors

p

Rail Mount

San Jacinto River Authority- Skid Dixon, KY- Wall Mount

System Packaging- High FlowSystem Packaging- High Flow• Flows of up to 20 MGD

• Systems to 1400 h O• 1400 gph O3

• 600 lpm O2

CASE STUDYCASE STUDYCASE STUDYCASE STUDY

Force Main Study: Force Main Study: ySan Jacinto River Authority

H t TX

ySan Jacinto River Authority

H t TXHouston, TXHouston, TX

Force Main Treatment: San Jacinto River Force Main Treatment: San Jacinto River AuthorityAuthority

Force Main Treatment: San Jacinto River Force Main Treatment: San Jacinto River AuthorityAuthority

Force Main: 14”, 2,280’ (0.5 miles)Flow: 0 5 to 1 0 mgd

Lift Station #12

Flow: 0.5 to 1.0 mgd

Timberlochand High

Odor complaints

and High TimbersManhole

N. MillbendManhole

Gravity 1.0 milesFlow: 0.5 to 1.0 mgd

Lift Station #2Lift Station #2

Force Main Treatment: San Jacinto River AuthorityForce Main Treatment: San Jacinto River AuthorityForce Main Treatment: San Jacinto River AuthorityForce Main Treatment: San Jacinto River Authority

P t t t Lift St ti 12Pre-treatment Lift Station 12:Average: 3 ppm

Peak: 15

Lift Station #12

TimberlockManhole


Pre-treatment at Timberloch Manhole ½ Mile:Pre treatment at Timberloch Manhole ½ Mile:Average: 22 ppm

Peak: 90Lift Station

#12

TimberlochManhole


Lift Station

Treatment Week 1 at Timberloch:A 22 t 1

Lift Station #12

Treatment site

Average: 22 ppm to 1 ppmPeak: 90 ppm to 18 ppm

TimberlockManhole

San Jacinto River AuthoritySan Jacinto River AuthoritySan Jacinto River AuthoritySan Jacinto River Authority

Lift Station #12

Treatment Week 2 Timberloch:A 22 t 1

#12

Treatment site

Average: 22 ppm to 1 ppmPeak: 90 ppm to 10 ppm

Ti b l hTimberlochManhole


P t T t t W k 3Lift Station

#12Post Treatment Week 3 :downstream sulfide levelsAverage: 1 ppm to 13 ppm

#12

Eff t li l ?Peak: 10 ppm to 70 ppm

Treatment Stopped:

Effect on slime layer?

Treatment Stopped: TimberlochManhole


Pre-treatment: 2nd Downstream ManholeA 3Average: 37 ppm

Peak: 96 ppmTimberloch

Manhole

Lift Station #12

N. MillbendManholeManhole


Treatment Week 1:2nd Manhole

Average: 37 to 6 ppmTimberloch

Manhole

Lift Station #12

Average: 37 to 6 ppmPeak: 96 to 30 ppm

N. MillbendManholeManhole

These are surprising given that the retention of the

treatment in gravity is limited System was shut-down

CASE STUDYCASE STUDY

Force Main Study: Force Main Study: ySanta Margarita

l

ySanta Margarita

lLas Flores, CALas Flores, CA

Force Main Treatment: Santa Margarita, CAForce Main Treatment: Santa Margarita, CAForce Main Treatment: Santa Margarita, CAForce Main Treatment: Santa Margarita, CA

No Treatment5500’10”

0 3 t 0 6 MGDAverage H2S: 10.5Peak H2S: 29 ppm

System Off 2X

0.3 to 0.6 MGD

System Off 2Xdemonstrating effect

without treatment

O3 60 /h

1st TreatmentAverage H2S: 0.2

2nd TreatmentAverage H2S: 1.0Peak H2S: 6 ppm

O3: 120 grams/hr

O2: 33 liters/min

O3: 60 grams/hr

O2: 22 liters/min

Peak H2S: 1 ppm

O2: 33 liters/min

Mobile Mobile Diagnostic Diagnostic

UnitsCopyright© Anue Water Technologies, Inc. 2010 U.S. Provisional Application No. 61/244,840 for IN-SITU LIQUID PHASE OZONE ODOR CONTROL

Units

Mobile Diagnostic Unit (MDUMobile Diagnostic Unit (MDU--300)300)Mobile Diagnostic Unit (MDUMobile Diagnostic Unit (MDU--300)300)MDU Application Capacity:Ozone: 300 grams/hourOzone: 300 grams/hour Oxygen: 90 liters/ minuteminute

MDU Includes:MDU Includes:

Oxygen generator

Ozone GeneratorOzone Generator

Control with Cellular MODEM

Transformer

MDU Application LimitsMDU Application LimitsMDU Application LimitsMDU Application LimitsSystem Capacity:MDU-120: 120 grams/hr O3g 345 liters/min O2

MDU 300:MDU-300:300 grams/hr O3100 liters/min O2

Test ProtocolsTest ProtocolsPre-Demonstration Baseline Data Collection (User)Duration: 7 days minimumTest Type: H2S vaporMeasurement: OdaLog, H2S ppm & temperatureFrequency: ContinuousDemonstration Data Collection (Anue)Duration: 7 to 14 days typicalTest Type 1: H2S vaporTest Type 1: H2S vaporMeasurement: OdaLog, H2S ppm & temperatureFrequency: Continuous

Test Type 2: Total, dissolved sulfides (liquid phase)Test Type 2: Total, dissolved sulfides (liquid phase)Measurement: LaMotte, mg/lFrequency: Once daily

Test Type 3: Dissolved oxygen, temperatureTest Type 3: Dissolved oxygen, temperatureMeasurement: Hach HQ40

Post Demonstration Data Collection Repeat “Pre” or “Demonstration”(User)(User) Duration: 7 days minimumTest Type: H2S vaporMeasurement: OdaLog, H2S ppm & temperatureFrequency: Continuous

Demonstration ProcessDemonstration ProcessQualify Application•Force main length & Diameter•Dynamic (peak) pressure•Average daily flow

Determine Required System

Capacity

•Loads: Sulfide, COD?

Assess Costs•Cost of current method

Determine Break Even & ROI

Site Survey•Access to force main•Power at site

Demonstration Proposal

Site Testing •Pre, during, post data collection

p

Test Report and Budgetary Proposal

Two-inch saddle tap and stainless ball

valve

Electrician for

connection

Thank you!Thank you!


EnviroEnviroPrepPrepTMTMFat Oil & Grease (FOG)Fat Oil & Grease (FOG)

EnviroEnviroPrepPrepFat, Oil & Grease (FOG)Fat, Oil & Grease (FOG)Remediation ProductsRemediation Products

Anue FOG RemediationAnue FOG RemediationFOG Remediation means automating clean-out to

reduce operating expenseR d t f t il d b ild• Removes and prevents fat, oil and grease build-up

• Re-conditions the wet well fluent for consistent operationoperation

Market Opportunity:Collection System FOG Remediation

Market Opportunity:Collection System FOG Remediation

• Lower “hard” and soft” costs…• “Hard” Costs for Clean-Out

– Vacuum trucks- purchase– Vacuum trucks- purchase– Vacuum truck operating expense

• FuelR i• Repairs

• Insurance– Third party services

• Clean-out “Soft” Costs: Real Costs often not Accounted– Coordination and application of

labor– Consistency of lift station operation– Water usage

Mechanically Induced Pre-treatmentMechanically Induced Pre-treatmentMechanical system offers four distinct beneficial actions…

• Surface Agitation

• Accumulation prevented

• Aeration t

• Increases dissolved Oxygen

• Recirculation

• Breaks down and Homogenizes fluentg

• Wash down automates cleaning

Recirculation: How They WorkRecirculation: How They Work• Wastewater recirculation…

• Tapping discharge main• Using a dedicated pump

• Hydraulic force spins headFl t >10 i• Flow at >10 psi

• Different head sizes have different flow requirements (see data sheet)

Tapped discharge

main

Dedicated pump

56

Dedicated Pump vs. TapDedicated Pump vs. TapDual TapSingle TapDedicated Pump Dual TapSingle TapDedicated Pump

EP system, grinder t l l

EP system tapping two di h i ith

EP system tapping one di h ipump, control panel

and timerdischarge mains with

manifolddischarge main

Head Assembly ComparisonHead Assembly Comparison

Series ApplicationHead

OutputOutputSizes

HeadImage

Mounting Options

Head Material Price

EP‐1100AAll Wet Wells ≥ 6’ diameter

Dual, rotating

2.0” 1.5” 1.0”0.75”

1. Hatch2. Wall

Composite $3,997

HS‐500

Wet wells 4’ to 6’ diameterWet wells with 26”

Single, stationar 2.0”

1 5”1. Hatch2 Wall

Stainless Steel

$2,795with ,26”

space for head rotation

y1.5 2. Wall Steel

Si l 2.0” C itHS‐100D

Grinder stations

Single, stationar

y

2.01.5”1.0”0.075”

Direct mount to discharge

Composite‐stainless steel

$2,305

EP “Kit” ConfigurationEP “Kit” Configuration

BracketThree piece “kit:1 Head Assembly1. Head Assembly2. Mounting Bracket 3. Feed Mast

Feed mast To complete installation parts such as stainless steel pipe and flex hose are added with lengths fitted to each well

Rotary HeadRotary Head Assembly

EPEP--1100A1100A Series: Low Cost High Action SystemSeries: Low Cost High Action SystemEPEP--1100A1100A Series: Low Cost High Action SystemSeries: Low Cost High Action System

3-Piece“Hatch” Mount Kit

Composite headInserts determine

output

2-Piece“Wall” Mount Kit

HS-500 HydroSpearTM Series HS-500 HydroSpearTM Series

HS-500 SeriesNon-Rotating Head

HS-520 wall mount

HeadLow flow requirements

HS-520HHatch mount

HyrdoStarHyrdoStar™ HS™ HS--100D100D SeriesSeriesHyrdoStarHyrdoStar™ HS™ HS--100D100D SeriesSeries

Fixed Washer head assembly M t di tl t di h Mount directly to discharge

main in grinder stations Composite Grinder Pump Applications

ONLY Low to Medium Flow

Applications

EP Product Design EvolutionEP Product Design EvolutionEP Product Design EvolutionEP Product Design EvolutionCh i i f d d bilitChanges improving performance and durability…

ED PRO 1000“Y” design

ED PRO 1000

ED PRO 1000 with

EP-1300 EP-1100•High Turbulence Mixing ChamberY design

20061000

“T” design2005

Mixing Chamber

2008

Mixing Chamber •Sealed Stainless

Bearing July 2009

CURRENT MODEL: EP-1100AComposite, self-adjusting deflectors

Low-mass, lower flow headComposite SureSealTM Rotary

Assembly July 2011

Thank you!Thank you!End


Sulfide ReleaseSulfide ReleaseSulfide ReleaseSulfide Release• Velocity increases turbulence

• Turbulence increases surface area• Faster gas release with more surface area• Faster gas release with more surface area• Turbulence can increase DO to some extent

• Depth of Flowp• Depth of flow determines cross-sectional area and

water surface area• Larger area increases release potential for H S• Larger area increases release potential for H2S

H2SO4

Concrete Corrosion in Collection SystemsConcrete Corrosion in Collection SystemsConcrete Corrosion in Collection SystemsConcrete Corrosion in Collection Systems

• Acid Attack of Sulfuric Acid• Concentration of up to 5% H2SO4 can be

f dfound• Attack is usually uneven• Attack most common at the crown andAttack most common at the crown and

the water lineThiobacillus bacteria

H2S(g) + 2O2 → H2SO4

odor & corrosionodor & corrosion control in … and corrosion control in... · collection...

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