bringing an advanced water purification membrane plant online · monitoring, lessons and moving...
TRANSCRIPT
Bringing an Advanced Water Purification
Membrane Plant Online
Silicon Valley Advanced Water Purification Center
BAYWORK
NOVEMBER 2015
Silicon Valley Advanced Water Purification Center
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Presentation will cover:
Presentation will cover:
Santa Clara Valley Water District & Water Supply Picture
Monitoring, Lessons and Moving Forward
Silicon Valley Advanced Water Purification Center
County’s Water Resources Manager
• Santa Clara Valley Water District: Providing
Silicon Valley safe, clean water for a healthy life,
environment and economy
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Headquarters in San Jose, California
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Santa Clara Valley Water District Serves:
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2 million people
15 cities
4,700 well owners
13 water retailers
San Francisco Bay Area
Diversified portfolio for a reliable supply
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Imported water Local surface &
groundwater
Conservation Recycled Water
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Water Shortages –Almaden Reservoir, San Jose
Need locally-controlled, drought-proof supply
Silicon Valley Advanced Water Purification Center
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SJ/SC Regional Wastewater
Treatment Facility
SBWR
Transmission
Pump Station
SILICON VALLEY
ADVANCED WATER
PURIFICATION CENTER
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Santa Clara Valley Water District constructed & owns a new recycled water purification facility – completed in early 2014
• 8 million gallons per
day of purified water
• Built in partnership –
Santa Clara Valley
Water District & the
City of San Jose
• Serves Silicon Valley
Silicon Valley Advanced Water Purification Center
0.1 micron
Incoming TDS = 900 ppm 11
MICROFILTRATION
Silicon Valley Advanced Water Purification Center
0.0001 micron
Outgoing TDS= 3-5 ppm 12
REVERSE OSMOSIS
Filtration: Pore Size Matters
(nanometer)
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Silicon Valley Advanced Water Purification Center
Ultraviolet light disinfection 14
Pilot Scale Testing – UV AOP
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Testing for…
– NDMA Destruction
– 1,4-dioxane Destruction
– Trace Pollutant Destruction
– AOP Oxidant Optimization
– Surrogate Analysis
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Silicon Valley Advanced Water Purification Center
Outgoing TDS= 40 ppm
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SCVWD Operators
Large internal candidate pool
Career path mobility & cross-over training opportunities available
SVAWPC operators are T operators
Initial equipment vendor training
On-the-Job Training
Using ISO & QMES SOPs – ISO
9001 & 14001 certified
Consultant developed training videos
Current Training Program
Benefits, Challenges, Lessons
Challenges
Career
ladder
Larger T
license
candidate pool
Benefits
Lessons
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Meeting Permit
The SVAWPC is continuously meeting non-potable performance criteria per the conditions of its operating permit.
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Team
District Units:
North Water Treatment Operations
Water Quality
Communications/Outreach
Groundwater
Laboratory Services
Recycled and Purified Water
Effluent Turbidity Meets Standard
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RO Permeate EC
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UVT Results For RO Permeate
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Monthly reporting to the Regional Board includes: • Daily total coliform bacteria monitoring • Maximum daily coliform reading for previous month • Minimum daily chlorine residual • Daily maximum turbidity • Daily UV compliance determinations, including minimum daily
UV dose. • Summary of operational problems, plant & equipment
breakdowns, diversions to emergency storage or disposal, and all corrective and preventative actions taken (CM & EM Reports) in report
• Records maintained on UV lamp age and replacement.
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Monthly Monitoring & Reporting
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Public tours at the new
facility – increases public
confidence and acceptance
for future potable reuse
Public tours at the new facility – increases public confidence and acceptance for future
potable reuse
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SVAWPC Grand Opening – July 2014
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SVAWPC Open House October 2015
Tasting is trusting
technologies
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Potable Reuse
Indirect Potable
Direct Potable
Percolation Ponds
Injection Wells
Drinking Reservoir
Augmentation
Before Conventional
Drinking WTP
Directly Into
Distribution Line
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Drivers for potable reuse
• Non-potable recycled water
(purple pipe) expansion
insufficient to meet future
needs
• Additional water conservation
efforts insufficient to meet
future needs – need the “wet
stuff”
• Potable reuse identified as
most reliable and cost-effective
option, per the District’s Water
Supply & Infrastructure Master
Plan
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Potable reuse – Multiple locations available
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Future – Direct Potable Reuse Possibility
WTP WTP
WTP
Labor Intense
NWRI – Independent Advisory Panel Meeting – May 29, 2014
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There is no “I” in TEAM !
NWRI – Independent Advisory Panel Meeting – May 29, 2014
Going forward
The highest quality water tomorrow
from the best available
technology today
with the best qualified
operators
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Questions?
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www.purewater4u.org