Team 2: Agua Para Vivir [Water For Life]
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Transcript of Team 2: Agua Para Vivir [Water For Life]
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Team 2:Agua Para Vivir
[Water For Life]
Drew JohnsonDavid Nyenhuis
Jason Van KampenHendrik
Vanderloo
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Our ProjectCuchiverachi, Mexico
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Objective- Promote Healthy Living
• 1st Priority • Deliver Water to
Dorm
• 2nd Priority• Improve Hygiene
and Health of the Community
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Trips To Gather Necessary InformationTrip 1: June 6- June 14,
2009Trip 2: Jan 26 – Feb 2, 2010• Needs of community• Sources of water• Elevations• GPS coordinates• Water quality• Flow rates of water
sources• Water rights• Ground conditions• Available building
materials and pricing
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Water Supply
• River water
• Ground water
• Rainwater
• Spring water
• Bottled water
Where to get the water…
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Water Supply
• Rainwater • Irrigation
• Spring water• Drinking• Hygiene
Concept Spring water
Rainwater
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Water Supply Systems
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Water Supply SystemGround Water Spring
• Spring Features• Marshy, unable
to locate eye• Clay soils• 98 m above
dorm• 1.4 km from
dorm• 2 L/min flow
rate• Community has
approved this spring for the dorm’s water supply
Marshy Area
Flow Direction
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Spring Water to DormCapture water from a spring
• Design Features• Two 15’ trenches
filled with permeable rock/gravel and 3’ PVC drain tile
• Drainage ditch upstream of spring to stop runoff infiltration
• Cost = $140
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Spring Water to Dorm
• Design Features• Concrete box
• 3’ x 3’ x 1’6”• 3” walls
• Concrete lid• 3’1” x 3’1” x
1.5”• Settles out
particles Ø > 0.001 cm
• Cost = $150
Settle particles out of water
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Spring Water to Dorm
• Water Demand Estimate for Dorm• The maximum capacity is 40 kids• The kids stay for 4 day periods each week• The average demand for a week is 2,400 L/day
• Water Supply from Spring• Rough estimate is 2 L/min• This estimates to about 2,900 L/day
Analysis of Water Demand
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Spring Water to Dorm
• Design Features• Positioned at an elevation
(95 ft above dorm) that gives at least 40 psi and a flow rate of 7 gal/min
• Ferrocement tank • Volume of 5,000 L (6.5’
diameter, 5.5’ tall)• Cost = $400
Storage Tank to EqualizePressure & Flow Variations
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Water System at DormWater Purification
• Filtration• CAWST bio-sand
filter• Cost of mold = $185• Cost per filter (not
including mold) = $20
• Disinfection
• Granular calcium hypochlorite
• Cost per pound= $2.00
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Water System at DormHot Water System
• Solar Heating Panel• Copper pipe• Glass covered• Circulating Pump• Heats 20 gal (75
L) of water to 95ºF inabout 5 hours
• Wood Fired Boiler• Recommended a
manufactured unit
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Rainwater & IrrigationWater for Community Crops
• Gutters• 4 plastic storage
tanks(1000 Liters)
• Irrigation to community fruit trees and vegetables
• Cost = $930
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Hygiene ImprovementsPit Toilets
• One pit toilet per family
• Lightweight superstructure
• Concrete block pit lining
• 3 meters deep by 1.3 meters square
• Cost per latrine = $240
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Hygiene ImprovementsEducation
• CAWST posters
• Educate children about healthy sanitary practices
• Easy to understand
• Pictorial
• Spanish and English
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ImplementationJune 2010
• Phase I• Cost = $1,500
• Phase II• Cost = $2,500
• Phase III• Cost = $6,000
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Building the Filter MoldSteel. Welding. Steel.
• Over 150 lbs of steel from GR Central Iron and Steel
• Finished on April 27
• Cost = $185
• Issue: Took longer than expected
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Filter #1Failure
• Poured filter on May 4
• Problem: Interior mold stuck in filter
• Solution: Break filter and retry!
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Filter #2More success, still a failure
• Changes made• Homemade concrete
mix – as design specified
• Less water• Pneumatic hammer• Ground all rough
edges• Lathered on the oil
• Mold didn’t stick
• Crack from mid-pour mix change
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ConclusionsFinal Thoughts
• Difficulties we faced• Data acquisition
• What we learned• More than engineering• Design to be built
• What we would have done differently• Built the prototypes earlier and
experimented more
• Plans are in the works to implement the project
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Acknowledgments Thank you!
• Tate Burckhardt, VP, Better Water Industries Inc.• Professors Leonard De Rooy, Robert Hoeksema,
Aubrey Sykes, & David Wunder, Calvin College• Phil Jasperse, Metals and Woodshop Technician,
Calvin College• Ryan Maness, Highways and Hedges Ministries• Breese Stam, Grand Rapids Engineering
Department• Richard Stam and Lorenzo Dominguez, Salud Para
Suchil• Dan VanderHeide, Project Engineer, Williams and
Works
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Questions?