Said Abou Abdallah, Terry Keep and Dr. Dean ReynoldsOhio AWWASeptember 20, 2012The City of Alliances Solution forTaste and...
2WATER STRESSIN ANINTERCONNECTEDWATER SUPPLYSources of contaminants inour water supply:- Industrial discharge- Agricultura...
3EXAMPLES OF MICROPOLLUTANTSNitrosamines (e.g. NDMA)Disinfection byproductsPesticides & HerbicidesMetaldehyde, Atrazine, I...
4TASTE & ODOUR, ALGAL TOXINSSeasonal algae blooms occur in surfacewatersDecaying algae blooms result in MIB,geosmin, algal...
5COMPOUNDS GENERATED BY SOME CYANOBACTERIAGeosmin2-Methylisoborneol (MIB)GSMand MIBcan be detectedby sensitive individual ...
6TASTE AND ODOUR TREATMENT STRATEGIES• Potassium Permanganate– Limited Effectiveness• Powdered Activated Carbon– Messy PAC...
7UV / H2O2 FOR TASTE AND ODOUR TREATMENTUV Advanced Oxidation: Using UV and Hydrogen Peroxide to destroytrace organic cont...
8UV-PHOTOLYSISChemical bonds arebroken by UV light
9UV-OXIDATIONHydrogenperoxideHydroxylradicalChemical bonds arebroken by hydroxylradicals
Planning and EngineeringApproach to the Final Design
11Planning and Engineering Approach to theFinal Designo UV Oxidation System Feasibility Studyo UV Oxidation System Procure...
12UV Oxidation System Feasibility Study• Actual Costs of using PoweredActivated Carbon (PAC)• UV Oxidation Process• Electr...
13UV Oxidation System Feasibility Study• PAC (Powder Activated Carbon)System Capabilities andLimitations• Type of PAC used...
14Actual PAC CostsMonthDays/MonthAverage InfluentMIB ConcentrationFlow PAC Cost / MG / day PAC CostJune, 2010 30 125.53 3....
15PAC Actual vs. UV Ox ProjectionsMonth and YearAverage InfluentMIB ConcentrationAverage Flow(MGD)Actual PAC CostsProjecte...
16MIB Concentration vs. PAC and UV Ox
17UV Oxidation System Feasibility Study:Findings• Procurement Recommendations for UV Oxidation System• Capital Costs and O...
18UV Oxidation System Procurement• Traditional Design vs. Pre-selection• Variations with Manufacturer’sDesigns• UV Oxidati...
19UV Oxidation SystemProcurement:Key Considerations• Tight ProcurementDocuments• Scope of Equipment• Warranty• Proposal In...
20UV Oxidation System: Procurement• Bid items• Clear and specific• Bid Requirements• Financial Stability• Experience and P...
21UV Oxidation System: Procurement• Cost Factors:• Capital Cost• O&M Cost• Common Cost Parameters• Energy Cost• Chemical C...
22UV Oxidation System:Effective Integration of Quality and Cost• Designed to meet theClient and Project Goals• Balanced be...
23UV Oxidation System:Final Design Documents• Design Documents to Allow the Installation ofthe Procured Equipment• UV Oxid...
24UV Oxidation System:Final Design Documents• Two 30-Inch Diameter Reactor in Series• Cooling System for Use During Filter...
25UV Oxidation System:Final Design Documents• Hydrogen Peroxide System• One 3,000 Gallon Hydrogen Peroxide BulkStorage Tan...
26UV Oxidation System:Final Design Documents• Future Chloramination• Provisions for Feed System• Provisions for MultipleMo...
SWIFT ECT 16L30” UV Reactor30” ReactorOn line UVTransmittanceMonitor
28QUESTIONS?Terry KeepECT Sales ManagerTrojan Technologies519.457.3400tkeep@trojanuv.comSaid AbouAbdallah, PE | Associate ...
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Ohio AWWA City of Alliance Selection of UV Oxidation for Taste & Odor treatment

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The City of Alliance has had some bad tasting water for years. The Water plant looked for options. The City hired Arcadis to design a UV Oxidation solution. This presentation describes teh rationale for selecting UV Oxidation for T&O treatment

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  • May 6, 2013
  • May 6, 2013
  • May 6, 2013
  • May 6, 2013
  • Start here with Gary’s dwgs May 6, 2013
  • Ohio AWWA City of Alliance Selection of UV Oxidation for Taste & Odor treatment

    1. 1. Said Abou Abdallah, Terry Keep and Dr. Dean ReynoldsOhio AWWASeptember 20, 2012The City of Alliances Solution forTaste and Odor Treatment
    2. 2. 2WATER STRESSIN ANINTERCONNECTEDWATER SUPPLYSources of contaminants inour water supply:- Industrial discharge- Agricultural runoff- Chemical releases- Municipal WastewaterInjectionWellExtractionWellNutrients  increase in Algae Blooms  Taste & Odour, Algal Toxins
    3. 3. 3EXAMPLES OF MICROPOLLUTANTSNitrosamines (e.g. NDMA)Disinfection byproductsPesticides & HerbicidesMetaldehyde, Atrazine, Isoproturon, othersPetroleum AdditivesIncluding MTBEPharmaceuticals & Personal Care ProductsIncludes potential endocrine disruptorsTaste & Odour CompoundsSeasonal occurrences of MIB, geosmin and othersAlgal ToxinsChronic and acute effects from cyanobacteria-derivedtoxins
    4. 4. 4TASTE & ODOUR, ALGAL TOXINSSeasonal algae blooms occur in surfacewatersDecaying algae blooms result in MIB,geosmin, algal toxins, other T&OcompoundsEarthy/musty, fishy, swampy, grassytastes & odours at low pptconcentrationsDifficult to remove with conventionaltechnologiesT&O episodes compromise publicconfidence in the safety of the water
    5. 5. 5COMPOUNDS GENERATED BY SOME CYANOBACTERIAGeosmin2-Methylisoborneol (MIB)GSMand MIBcan be detectedby sensitive individual down to4 ng/L (ppt)[Geosmin] have beenmeasured > 3000 ng/LAesthetics: T&O cmpdsCylindrospermopsin (CYN)Microcystin-LR (MC-LR) [MC]~1800ug/L meas drng bloomPublic Health: CyanotoxinsWHOset limit at 1µg/LUSEPAaddedCNTXtotheCCL
    6. 6. 6TASTE AND ODOUR TREATMENT STRATEGIES• Potassium Permanganate– Limited Effectiveness• Powdered Activated Carbon– Messy PAC & Sludge Handling, no Performance Guarantee• Granular Activated Carbon– Frequent & Expensive Change-outs, no Performance Guarantee• Ozone– Complicated System & Carcinogenic by-product (Bromate)• UV-Oxidation– Simple, Effective for T&O with Simultaneous Disinfection, GuaranteedPerformance for life of system
    7. 7. 7UV / H2O2 FOR TASTE AND ODOUR TREATMENTUV Advanced Oxidation: Using UV and Hydrogen Peroxide to destroytrace organic contaminants in water by:UV-PhotolysisUV-Oxidation
    8. 8. 8UV-PHOTOLYSISChemical bonds arebroken by UV light
    9. 9. 9UV-OXIDATIONHydrogenperoxideHydroxylradicalChemical bonds arebroken by hydroxylradicals
    10. 10. Planning and EngineeringApproach to the Final Design
    11. 11. 11Planning and Engineering Approach to theFinal Designo UV Oxidation System Feasibility Studyo UV Oxidation System Procuremento UV Oxidation System Final Design Documentso Design Criteria:• UVT 92%• Turbidity < 0.06 NTU• TOC < 3 mg/l• Nitrates < 1 mg/l• pH 6.7 – 6.9• Average Flow 5.5 MGD/10.0 MGD Max
    12. 12. 12UV Oxidation System Feasibility Study• Actual Costs of using PoweredActivated Carbon (PAC)• UV Oxidation Process• Electrical Costs• Hydrogen Peroxide Cost• Chlorination Cost• Equipment Manufacturers Variations• Design Requirements• Non-Cost factors
    13. 13. 13UV Oxidation System Feasibility Study• PAC (Powder Activated Carbon)System Capabilities andLimitations• Type of PAC used• Impact on Other TreatmentProcesses• Operational Difficulties• Future Limitations
    14. 14. 14Actual PAC CostsMonthDays/MonthAverage InfluentMIB ConcentrationFlow PAC Cost / MG / day PAC CostJune, 2010 30 125.53 3.2 $27.76 $2,665.23July, 2010 31 86.50 3.7 $14.82 $1,700.29August, 2010 31 23.07 3.5 $17.50 $1,899.18September, 2010 30 25.90 3.4 $14.89 $1,519.20October, 2010 31 112.33 3.2 $131.74 $13,068.90November, 2010 30 326.63 3.0 $422.42 $38,017.41December, 2010 31 549.46 3.2 $559.86 $55,538.10January, 2011 31 967.06 3.3 $521.49 $53,348.20February, 2011 28 911.53 3.3 $535.70 $49,498.78March, 2011 31 125.67 3.2 $513.44 $50,933.69April, 2011 30 11.05 3.2 $72.31 $6,941.88May, 2011 31 4.65 3.7 $22.18 $2,544.5012 Months Total $277,675.37Actual Costs of PAC Treatment
    15. 15. 15PAC Actual vs. UV Ox ProjectionsMonth and YearAverage InfluentMIB ConcentrationAverage Flow(MGD)Actual PAC CostsProjected PAC/UV Ox CostsJune, 2010 125.53 3.2 $2,665.23 $2,665.23July, 2010 86.50 3.7 $1,700.29 $1,700.29August, 2010 23.07 3.5 $1,899.18 $1,899.18September, 2010 25.90 3.4 $1,519.20 $1,519.20October, 2010 112.33 3.2 $13,068.90 $13,068.90November, 2010 326.63 3.0 $38,017.41 $27,000.00December, 2010 549.46 3.2 $55,538.10 $48,087.57January, 2011 967.06 3.3 $53,348.20 $57,364.10February, 2011 911.53 3.3 $49,498.78 $52,469.39March, 2011 125.67 3.2 $50,933.69 $29,760.00April, 2011 11.05 3.2 $6,941.88 $6,941.88May, 2011 4.65 3.7 $2,544.50 $2,544.5012 Months Total $277,675.37 $245,020.24PAC Actual vs. UV Ox Projected
    16. 16. 16MIB Concentration vs. PAC and UV Ox
    17. 17. 17UV Oxidation System Feasibility Study:Findings• Procurement Recommendations for UV Oxidation System• Capital Costs and Operation & Maintenance Costs• Non-Cost Factors (Vendor Experience)• Impact on Water Users – Water rate, water quality• Schedule of Implementation
    18. 18. 18UV Oxidation System Procurement• Traditional Design vs. Pre-selection• Variations with Manufacturer’sDesigns• UV Oxidation Equipment Essentialand Critical for Taste and Odor• UV Oxidation Equipment RepresentsSignificant Project Cost• Multiple Available Strategies• Balancing Qualifications/Experienceand Costs• Early Procurement PreventsDuplications and Delays
    19. 19. 19UV Oxidation SystemProcurement:Key Considerations• Tight ProcurementDocuments• Scope of Equipment• Warranty• Proposal Information• Operating Parameters• Capital Cost Analysis vs.Present Worth Analysis• Bidding Conditions• Decision Analysis andWeighting
    20. 20. 20UV Oxidation System: Procurement• Bid items• Clear and specific• Bid Requirements• Financial Stability• Experience and Past Performance• Demonstration of successfulOperations• Equipment Service andSupport• Equipment Characteristics andFlexibility• Future Capacity• Operations and Complexity
    21. 21. 21UV Oxidation System: Procurement• Cost Factors:• Capital Cost• O&M Cost• Common Cost Parameters• Energy Cost• Chemical Cost• Interest rates• PW period
    22. 22. 22UV Oxidation System:Effective Integration of Quality and Cost• Designed to meet theClient and Project Goals• Balanced between Costand Non-Cost Factors• Qualifications/ExperienceEmphasis• Broad Spectrum ofEvaluation
    23. 23. 23UV Oxidation System:Final Design Documents• Design Documents to Allow the Installation ofthe Procured Equipment• UV Oxidation Units• Hydrogen Peroxide Feed and Storage System• Chlorine Feed System• Future Provisions• Performance Testing
    24. 24. 24UV Oxidation System:Final Design Documents• Two 30-Inch Diameter Reactor in Series• Cooling System for Use During FilterBackwash Operations• Operator Input During Chlorine Trouble Times• Dedicated Automatic Chlorinator for UV Ox Operation• System Bypass During Non- Taste and Odor Season
    25. 25. 25UV Oxidation System:Final Design Documents• Hydrogen Peroxide System• One 3,000 Gallon Hydrogen Peroxide BulkStorage Tank• Two Day tanks with Duplex Feed pumpSystem• Double Containment Piping• Chlorine Feed System Capacity Upgrade• New Chlorine Evaporator• Dedicated Chlorinator for UV Ox• Use of Liquid Chlorine with Back-up GasManifolds• Re-training of personnel on use of newChlorine System
    26. 26. 26UV Oxidation System:Final Design Documents• Future Chloramination• Provisions for Feed System• Provisions for MultipleMonitoring Locations• Implementation Schedule• Construction Project Biddingin September/October 2012• Construction NTP November 2012• Substantial Completion September 20132013• Performance Testing by December 2013
    27. 27. SWIFT ECT 16L30” UV Reactor30” ReactorOn line UVTransmittanceMonitor
    28. 28. 28QUESTIONS?Terry KeepECT Sales ManagerTrojan Technologies519.457.3400tkeep@trojanuv.comSaid AbouAbdallah, PE | Associate Vice PresidentMalcolm Pirnie | The Water Division of ARCADIS216.781.6177said.abouabdallah @arcadis-us.com

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