3. 3
Presentation of the UV Disinfection Facility detailed
design prior to Tendering and Construction
Meeting Objective
3
4. 4
Project Background
• Improved ABTP discharge treated effluent
quality
• Discontinue use of the Seawall Gates
• Improved nearshore water quality at ABTP
• Eliminate chlorination by-products during
normal operation
• Eliminate residual chlorine during by-pass
• Increased ABTP process reliability and
operational flexibility
• Connect to the new outfall
4
5. 5
Project Objective
• Design and construct an UV disinfection facility that meets all
regulations
Success Factors
• Elimination of residual chlorine discharge to the lake
• Discontinue the use of the seawall gates
• Improvement of the nearshore water quality
• Meeting EA commitments
Project Implementation
5
15. 15
Energy Conservation Measures
• Green Roof
• Solar Wall
• Heat recovery to reduce operational cost
• Occupied/ unoccupied control (light and heat)
• VFDs provided to all fans & pumps
• Heat reclaim for domestic water heating
• Ultra high efficiency and high efficiency motors and
lighting
• Mechanical control system linked to ABTP central
computer system
• Environmentally friendly refrigerants in air-
conditioning system
• Variable Refrigerant Flow (VRF) in air-conditioning
system
15
16. 16
UV Equipment Competitive Pre-Selection
Monetary Criteria
• Equipment capital cost
• Facility capital cost
• Operating cost
Non-Monetary Criteria
• Vendor experience
• Performance guarantee
• Service capabilities
• Replacement parts
• Reference facilities
16
17. 17
• Highest score
• Lower energy consumption
• Lower number of lamps
UV Pre-selected Supplier – TrojanUV
Lamp Technology
Number of
Lamps
Required
Power Draw
Low Pressure – High Output 4,720 1,180 kW
Medium Pressure – High Output 1,680 4,300 kW
New Low Pressure – Very High Output 1,408 1,280 kW
17
18. 18
Discharge To Lake 2017 – 2020 (during UV facility
construction)
By-Pass
Disinfection
Existing Outfall
and Seawall Gates
18
19. 19
Discharge to Lake 2020 to 2023 (UV operation during
new outfall construction)
By-Pass
Disinfection
Existing Outfall
and Seawall Gates
UV Disinfection
UV
19
20. 20
Discharge to Lake 2023 (UV and new outfall)
By-Pass
Disinfection
UV Disinfection
UV
New 3,923 MLD
Outfall
20
21. 21
Cost and Project Schedule
Total Project Cost (2019 CAD) $220M
Total Estimated Construction Duration 3 years
2017 2018 2019 2020 2021 2022 2023
100%
Detailed
Design
Start
Construction
UV
Operation
Old Outfall
UV
Operation
New
Outfall
Design Construction Operation
Tender
21
22. 22
Conclusions
• Meeting EA requirements and applicable regulations
• Eliminate effluent chlorination (during normal operation
with UV)
• Improve effluent quality and near shore lake water quality
22