Anglemont Water System Treatment Improvements Brett deWynter and - - PowerPoint PPT Presentation

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Anglemont Water System Treatment Improvements Brett deWynter and - - PowerPoint PPT Presentation

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Anglemont Water System Treatment Improvements Brett deWynter and Kevin Witzke March 12, 2013 Properties of UV Light 400nm 40nm Visible Radio IR UV X-Rays Light Vacuum Vacuum UV-A UV-B UV-C UV 300nm 200nm Germicidal Range

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SLIDE 1

Anglemont Water System Treatment Improvements

Brett deWynter and Kevin Witzke

March 12, 2013

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SLIDE 2

Properties of UV Light

400nm 40nm Radio

IR

Visible Light

UV X-Rays

Vacuum

UV-A UV-B UV-C

Vacuum UV

Germicidal Range

200nm 300nm

March 12, 2013 Anglemont Water System Treatment Improvements Page 2

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SLIDE 3

What is UV Disinfection?

  • A Physical Process That Uses Electromagnetic

Energy to prevent the Cellular Proteins and Nucleic Acids (i.e., DNA and RNA) From Further Replication Acids (i.e., DNA and RNA) From Further Replication

  • The germicidal UV irradiation ranges From 200 to

300 nm, with the optimum germicidal effect , p g

  • ccurring at a wavelength of 254 nm
  • The technique of choice for cost effective

q inactivation of Giardia & Cryptosporidium

March 12, 2013 Anglemont Water System Treatment Improvements Page 3

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SLIDE 4

Determine Design Criteria

  • Inactivation Targets
  • Design dosage

– UV energy per unit area (mJ/cm2) – 3-log inactivation – Mechanical redundancy – Mechanical redundancy

  • Determine UV transmittance and water quality of

supply supply

  • Hydraulics through the reactor is an important issue

– Long straight pipe runs are ideal for new installations Long straight pipe runs are ideal for new installations – No air within vessel – Minimize water hammer concerns

March 12, 2013 Anglemont Water System Treatment Improvements Page 4

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SLIDE 5

Reactor Location

  • Locate within process at the highest water quality,

least flow variation and lowest system pressure least flow variation and lowest system pressure.

– Filter effluent – Balancing reservoir inlet S ti id f t i i – Suction side of transmission pumps

  • Ensure reactors are fully submerged
  • Un-chlorinated process water (preferred)

March 12, 2013 Anglemont Water System Treatment Improvements Page 5

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SLIDE 6

Schematic of the Disinfection Process – Located at the Reservoir 3 Site Located at the Reservoir 3 Site

March 12, 2013 Anglemont Water System Treatment Improvements Page 6

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SLIDE 7

Process Flow Diagram

March 12, 2013 Anglemont Water System Treatment Improvements Page 7

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SLIDE 8

Water Supply and Treatment Improvements

  • New lake

intake intake

  • Foreshore

pump station pump station

  • WTP
  • Two new

booster stations

March 12, 2013 Anglemont Water System Treatment Improvements Page 8

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SLIDE 9

Shuswap Lake Intake & Pump Station

March 12, 2013 Anglemont Water System Treatment Improvements Page 9

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SLIDE 10

Anglemont Water Treatment Plant

March 12, 2013 Anglemont Water System Treatment Improvements Page 10

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SLIDE 11

Reservoir 3 Site – Water Treatment Plant

  • Integrated building –

electrical room booster

Treatment Plant

electrical room, booster station and treatment

  • Space for future filtration

Space for future filtration

  • Masonry block buildings

with rigid insulation and with rigid insulation and siding

  • Operator

p washroom/working space

March 12, 2013 Anglemont Water System Treatment Improvements Page 11

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SLIDE 12

Thank You

Brett.dewynter@aecom.com Kevin.witzke@aecom.com