a tour of denver water daniel cromer kellene mckinney kristen potter lynn pruisner alex ream pam...
TRANSCRIPT
A Tour of Denver Water
Daniel CromerKellene McKinney
Kristen PotterLynn Pruisner
Alex Ream
Pam Morse, TA
Introduction to Chemical EngineeringGroup 6—April 11, 2007
Water—A Universal Product
70% of the earth is covered with water.
Water—A Universal Product
70% of human body mass is water.
Water—A Universal Product
The average consumption is168 gallons per day per person.
Water—A Universal Product
Water is necessary—everyone needs it!
The Water “Business”
CollectionPurificationDistribution
Future Planning
Source Water Collection
Mountain Snowmelt* Streams & Rivers
DamsReservoirs
Recycled Water
Purification
From Mountain Top to Tap
Removing Contaminants
Potable & Nonpotable Water Standards
Turbidity (3000.3)
Distribution
Complex Network of Pipes Deliver toHomes
BusinessesIndustry
Fire Hydrants
Denver Water
Denver Metro AreaWater Service provided by
A Brief History of Denver Water
Colorado’s Oldest and Largest
Established 1918 whenDenver Union Water System
was purchased for $14 Million
Fun Facts about Denver Water
2,631 miles of pipeline34 Underground Reservoirs
Fill INVESCO Field 2x per day
Serves 25% Colorado Population15,000 Fire Hydrants
Denver Water People
Controls Engineer* Electrical and Civil Engineers*
Water Treatment Technician Water System Operator
Dillon Reservoir Caretaker Ground Laborers
Human Resource Specialist
Denver Water Facilities
Main PlantsMarston, Moffat, Foothills
Recycle PlantsCommerce City
Completed 2004—$180 Million
What is a Recycle Plant?
Process Lower Quality SourceEfficient Production for Nonpotable
UsesReuse Metro Wastewater
Mediates Drought ProblemsPopular Worldwide
Denver Water Recycle Plant
“The Purple Pipes”
Saves Money and Potable Water
Customers: Xcel, Denver Zoo, Golf Courses
Model Recycle Plant for Cutting-Edge Water Treatment
Analysis Lab
On-site and Fully Equipped
Accessible Samples—Any Stage
Organic and Inorganic Analysis
Control Room
24/7/365.25
Computer Controlled
Full Monitoring:Data, Trends, Video
Security
Location and Layout
Commerce City, CONear Large
IndustriesPlatte River
Linear Flow
Recycle Plant Process
CollectionBio ProcessCoagulateFlocculationSedimentationFilterDisinfectStorage
Recycle Plant Process
CollectionBio ProcessCoagulateFlocculationSedimentationFilterDisinfectStorage
Source Water
Metro Wastewater Collected
pH Balanced with NaOH
Ammonium Hydroxide added as nutrient for bacteria
Recycle Plant Process
CollectionBio ProcessCoagulateFlocculationSedimentationFilterDisinfectStorage
Biological Filters
Bio-BacteriaSodium & Ammonia Nitrates
Watch what you put in!Disturbed biomass shuts down the plant for a week while they replenish themselves.
Recycle Plant Process
CollectionBio ProcessCoagulateFlocculationSedimentationFilterDisinfectStorage
Mixing/Particle RemovalAlum—CoagulantCoagulates small particles
Open to the airOften have fish and or ducks in the water
Recycle Plant Process
CollectionBio ProcessCoagulateFlocculationSedimentationFilterDisinfectStorage
This process rids the water of most large particles including the alum.
Inside and covered
Flocculation
Recycle Plant Process
CollectionBio ProcessCoagulateFlocculationSedimentationFilterDisinfectStorage
Remove any large particles that made it through flocculation.(Fish, Light Particles)
Everything was covered in a layer of rust.(Not everything filtered)
Sedimentation
Recycle Plant Process
CollectionBio ProcessCoagulateFlocculationSedimentationFilterDisinfectStorage
Filters
Filters out the very small particles left in the water to make extremely clear water (turbidity < 0.5)
Made of anthracite (a very hard pure form of coal)
Troughs spread the water out so that the filter is used evenly
Recycle Plant Process
CollectionBio ProcessCoagulateFlocculationSedimentationFilterDisinfectStorage
Disinfect and Store
Chlorine disinfects water
Stored in large (300 x 23 ft) round storage tanks. 11 million gallonsStored under parks or other large open spaces
Pumped out to customers
Impressive Plant
Beautiful architecture
Everything color coated
Cleanliness a priority
Separate buildings keep things organized and cost efficient
Future Planning
Changing Quality StandardsHigh Security/Safety
Bad Chemicals: Unsafe water in Denver homes and establishments
Future Planning
Limited Potable WaterMultiple Water Mains
Conservation and Education
Note: Use only what you need!
Constant Expansion
2007Pump Station, Distribution Pipes, Storage Facilities
2010Additional Water Mains
Conclusion
Potable or nonpotable, the water is clean!
Thank you!
AcknowledgementsDenver Water
Pam MorseCHEN 1300
University of Colorado