September 29 th 2012 | New Orleans, Louisiana

1. Water Environment Federation | Student Design Competition The Upgrade and Expansion of the Port Dover Water Pollution Control Plant • Ryerson Design Team September 29th 2012 | New Orleans, Louisiana

2. Agenda 1 • Introduction • Current Process Overview • Design Philosophy • Phase I Upgrade and Expansion • Phase II Conceptual Overview • Conclusions Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

3. Port Dover Water Pollution Control Plant Introduction: 2 Ryerson University Toronto, Ontario, Canada Port Dover WPCP Norfolk County, Ontario, Canada WEF TEC 2012 New Orleans, Louisiana, USA Source: Google Maps Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

4. Port Dover Water Pollution Control Plant Introduction: 3 Lake Ontario Toronto, Ontario Port Dover, Ontario Detroit, Michigan Lake Erie Cleveland, Ohio Source: Google Maps Photo: Wally Crawler Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

5. Port Dover Water Pollution Control Plant Introduction: 4 Overview of Current Plant: Source: Google Maps • Most recent upgrade occurred in • Treated wastewater sent directly into Lake Erie • Activated sludge treatment using mechanical surface aeration • Chemical addition for nutrient removal and disinfection 1991 Lake Erie Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

6. Project Statement 5 Phase I Budget: $8,800,000 CND • Present a preliminary design and layout of an upgrade/expansion for the Port Dover WPCP to meet capacity for the year 2026, solving bypass issues. 6,400 to 12,800 Population is expected to grow from by 2026. Phase II Budget: $8,000,000 CND • Prepare a conceptual layout for Phase II of the expansion of the Port Dover WPCP to account for expected population grown beyond 2026. Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

7. Design Basis 6 Changes In Design Capacity 24,880 m3/day Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

8. Design Basis 7 Existing Characteristics Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

9. Design Basis 7 Proposed Design Basis Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

10. Existing Port Dover WPCP Layout Process Overview: 8 To Land Application Anaerobic Digester To Landfill Ferric Chloride Sodium Hypochlorite Screening and Grit Vortex Primary Clarifier Aeration Basin Secondary Clarifier Disinfection > 18,000 m3/day > 18,000 m3/day Raw Wastewater Discharge! Design Capacity Average Daily Flow: 5,400 m3/day Peak Daily Flow: 18,000 m3/day To Lake Erie Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

11. Points of Concern with Current Design Process Overview: 9 with the current plant have been identified. 5 issues Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

12. Points of Concern with Current Design Process Overview: 10 To land application Anaerobic Digester To landfill Ferric Chloride Sodium Hypochlorite Issue 1: Gross Solids Buildup Screening and Grit Vortex Primary Clarifier Aeration Basin Secondary Clarifier Disinfection To Lake Erie Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

13. Points of Concern with Current Design Process Overview: 10 Issue 1: Gross Solids Build Up Current bar screen has single rake Solids build up on bar screen causes total plant bypass even when flow does not exceed plant capacity Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

14. Points of Concern with Current Design Process Overview: 11 To land application Anaerobic Digester To landfill Ferric Chloride Sodium Hypochlorite Screening and Grit Vortex Primary Clarifier Aeration Basin Secondary Clarifier Disinfection Issue 2: Raw Wastewater Discharge To Lake Erie Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

15. Points of Concern with Current Design Process Overview: 11 Issue 2: Raw Wastewater Discharge There are 10-21 bypass events each year from clogging and wet weather events Not acceptable! Source: Google Maps Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

16. Points of Concern with Current Design Process Overview: 12 To land application Issue 3: Chemical Addition for Nutrient Removal Anaerobic Digester To landfill Ferric Chloride Sodium Hypochlorite Screening and Grit Vortex Primary Clarifier Aeration Basin Secondary Clarifier Disinfection To Lake Erie Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

17. Points of Concern with Current Design Process Overview: 12 Issue 3: Chemical Addition For Nutrient Removal Dependence on ferric chloride is not cost effective Chemically precipitated phosphates are not readily bioavailable Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

18. Points of Concern with Current Design Process Overview: 13 To land application Anaerobic Digester To landfill Ferric Chloride Sodium Hypochlorite Screening and Grit Vortex Primary Clarifier Aeration Basin Secondary Clarifier Disinfection Issue 4: Inefficient Aeration To Lake Erie Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

19. Points of Concern with Current Design Process Overview: 13 Issue 4: Inefficient Aeration Mechanical aeration is outdated! • Poor efficiency • Poor control Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

20. Points of Concern with Current Design Process Overview: 14 To land application Anaerobic Digester To landfill Ferric Chloride Sodium Hypochlorite Screening and Grit Vortex Primary Clarifier Aeration Basin Secondary Clarifier Disinfection Issue 5: Chemical Addition for Disinfection To Lake Erie Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

21. Points of Concern with Current Design Process Overview: 14 Issue 5: Chemical Addition For Disinfection Problematic for aquatic life, may produce harmful by-products Dechlorination may be required for increased flow rates, increasing cost per litre treated Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

22. Commitment to Sustainable Design Design Philosophy: 15 Eutrophication • Algal blooms caused by increased nutrient levels in bodies of water can reduce the level of dissolved oxygen. • Eutrophication decreases enjoyment of waterways and property values. • It harms aquatic ecosystems and poses a human health hazard. Source: Sandusky Register Source: NOAA (US) Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

23. Commitment to Sustainable Design Design Philosophy: 15 The choices we make affect the future of Lake Erie • TheRyerson Design Teamaims for the following in our design: The choices we make affect the future of Lake Erie • The introduction of a more advanced treatment • The reduction of energy consumption • The removal or reduction of chemical addition • We aim to show that sustainable and advanced treatment is a more cost effective and responsible choice Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

24. Points of Concern with Current Design Process Overview: 16 The Ryerson Design Team has applied their philosophy to solve to the at Port Dover. 5 issues Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

25. Phase I Upgrades 17 The bar screen channel is widened to accommodate a larger screen for increased flow Solution to Issue One: Upgrade to Bar Screen A multi rake system is installed for increased solids removal Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

26. Phase I Upgrades 18 Adding a bypass overflow tank will prevent untreated wastewater from entering Lake Erie Solution to Issue Two: Installation of Overflow Tank Tank volume sized based on historical wet weather event data Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

27. Phase I Upgrades 19 Reduction of discharge BOD concentration Solution to Issue Three: Adaptation of Westbank Biological Nutrient Removal Process Conventional Reduction of discharge nutrients • Nitrogen as ammonia and ammonium • Phosphate Advanced Treatment How does BNR work? Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

28. Phase I Upgrades 20 Reduction of Discharge BOD Concentration • Requires: • Heterotrophic organism (about 26% of MLSS) • Terminal electron acceptor – Oxygen or Nitrates Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

29. Phase I Upgrades 21 Reduction of Discharge Nutrient Levels - Phosphate Physical uptake of phosphate into Phosphate Accumulating Organisms (PAO) P P P P VFA PHA PHA Anaerobic Zone Aerobic or Anoxic Zone Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

30. Phase I Upgrades 21 Reduction of Discharge Nutrient Levels - Nitrogen Nitrification Facilitated by Autotrophic microbes – 2% of MLSS Nitrosomonas Rate limiting! Nitrobacter Ammonium + Oxygen Nitrate + Water + H+ Denitrification Heterotrophic microbes Nitrogen Gas + Carbon Dioxide + Water Nitrates + Carbon Source Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

31. Phase I Upgrades Secondary Treatment: BNR and BOD reduction 22 27 Wastewater Recycle (WR) Secondary Treatment Reactors Clarifier Anoxic Anaerobic Aerobic Waste Activated Sludge (WAS) Return Activated Sludge (RAS) Volatile Fatty Acids (VFA) Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

32. Phase I Upgrades Secondary Treatment: BNR and BOD reduction Secondary Treatment: BNR and BOD reduction 23 31 27 Effluent Limits Temperature Effects on Ammonium removal 12.2 ᵒ C Effluent Goals Expected effluent concentration with 5,250 m3 reactor 25.7 ᵒ C Feb Jan Mar April May June July Aug Sept Oct Nov Dec Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

33. Phase I Upgrades 24 Solution to Issue Four: Use of Fine Bubble Diffusers for Aeration Increased oxygen transfer and energy efficiency Automated controls ensure proper performance Source: WEC Projects Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

34. Ultraviolet Disinfection and Sand Filters Phase I Upgrades 25 Use of ultraviolet disinfection eliminates the requirement for chemical addition Solution to Issue Five: Sand Filtration and UV Disinfection Moving bed sand filtration prior to disinfection: • Better nutrient removal • Less UV power required Source: water-technology.net Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA • Reduction of suspended solids leads to decreased power consumption •Filtering also further reduces nutrient levels

35. Overflow Tank Phase I Upgrade and Expansion 26 Rectangular Primary Clarification Vortex Grit Chamber Bar Screen Headworks and Primary Clarification Raw Wastewater Overflow to By-Pass Effluent to Lake Erie Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

36. Phase I Upgrade and Expansion 26 Rectangular Primary Clarification Vortex Grit Chamber Bar Screen Headworks and Primary Clarification Raw Wastewater Type: Multi-Rake Capacity: 24,800 m3/day Width: 700mm Bar Spacing: 40mm Overflow to By-Pass Overflow Tank Additional Volume: 8.54 m3 Detention Time: 30s Grit Removal: 2.29 m3/day (PDF) 0.67 m3/day (ADF) 18.5 mg/L VFAs in Winter 23.5 mg/L VFAs in Summer SRT: 5 days (ADF) 2 days (PDF) Volume: 575 m3 16m L X 7m W x 5m H Additional SA: 105 m2 (22.9m L x 4.6m W) Goal SOR: 70m3/day-m2 HRT: 4.2 h (ADF) 1.2 h (PDF) Sludge Fermenter Effluent to Lake Erie Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

37. Overflow Tank Phase I Upgrade and Expansion 27 Mechanical Aeration Chamber Circular Secondary Clarifiers To Disinfection From Primary Clarifiers Secondary Treatment Ferric Chloride To Digester Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

38. Overflow Tank Phase I Upgrade and Expansion 27 Anoxic Reactor Volume: 668 m3 HRT: 0.34 h (PDF) 1.2 h (ADF) SRT: 6.4 days Anaerobic Reactor Volume: 668 m3 HRT: 0.34 h (PDF) 1.2 h (ADF) Mechanical Aeration Chamber Circular Secondary Clarifiers To Disinfection From Primary Clarifiers Secondary Treatment Anoxic Anaerobic VFA from Primary Fermenter Aerobic Reactor Aerobic Reactor Volume: 5,250 m3 HRT: 2.7 h (PDF) 9.1 h (ADF) SRT: 15 days DO Required: 2mg/L Diameter: 18m Side Wall Depth: 4.6m Bottom Slope: 1:12 Goal SOR: 35m3/day-m2 Dissolved Oxygen To Digester Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

39. Overflow Tank Phase I Upgrade and Expansion 28 Sodium Hypochlorite From Secondary Treatment Disinfection Chlorine Contact Chamber From Secondary Bypass Effluent to Lake Erie Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

40. Overflow Tank Phase I Upgrade and Expansion 28 Sodium Hypochlorite Continuous Backwash Sand Filters Ultraviolet Disinfection From Secondary Treatment Disinfection Chlorine Contact Chamber Chlorine Contact Chamber Dose: 20 mW sec/cm2 (PDF) 15 mW sec/cm2 (ADF) Effluent Quality: 50 organisms / 100 mL From Secondary Bypass Number of filters: 14 Total SA: 71.4 m2 TSS Reduction: 90% Effluent to Lake Erie Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

41. Overflow Tank Phase I Upgrade and Expansion 29 To Biosolids Storage and Land Application Screenings and Grit Methane to Boiler To Landfill Solids Handling Egg Shaped Digester Primary Sludge Waste Activated Sludge Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

42. Overflow Tank Phase I Upgrade and Expansion 29 To Biosolids Storage and Land Application Screenings and Grit Methane to Boiler To Landfill Solids Handling VFA to Anaerobic Reactor Egg Shaped Digester Sludge Fermenter Primary Sludge Waste Activated Sludge Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

43. Overflow Tank Phase I Plant Layout 30 Headworks and Primary Treatment Secondary Treatment and Nutrient Removal Disinfection Source: Google Maps Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

44. Phase I Hydraulic Profile 31 Source: Google Maps Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

45. Phase I Hydraulic Profile 31 191m Elevation Source: Google Maps Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

46. Phase I Hydraulic Profile 31 Source: Google Maps Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

47. Phase I Hydraulic Profile 31 Source: Google Maps Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

48. Overflow Tank Phase I Effluent Characteristics 32 Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

49. Favor should be given to tenders which consider environmentally responsible practices. • Landscaping should be replaced Phase I Safety and Environmental 33 • The design should account for all applicable codes and regulations under the Occupational Health and Safety Act, the Building Code Act, 1992 and the Fire Protection and Prevention Act, 1997. Plant and Process Safety None of the process changes proposed pose considerable additional safety concerns Environmental Concerns Construction must take place in a manner with the least impact on the surrounding environment. Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA

50. Overflow Tank Phase I: Noise and Odour 34 100m Source: Google Maps Sensitive Land Use Ryerson University Design Team | WEF SDC September 29th 2012 | New Orleans, LA