Transcript final_Eco-village_water_system

Tim Byrne-(E Sci)
Bridget Finnegan-(Ch E)
Monica Virga-(PNGE)
Riley Wingert-(M E)
River
Rain Water Catchment
Roofspace: 4000 ft2
1.5 L per ft2 in
3.4 in. avg./mo.
Back up water source
680 L/day
Waste water
Daily water
storage
Mass storage
60,000 L Capacity
50 L/day
Agriculture
300 L/day
Filter
300 L/day
300 L/day
Daily potable
storage
Drinking
40 L/day
300 L/day
Cooking
Bio diesel
Housing
100 L/day
200 L/day
Showers
Washing
16 L/day
Toilets
40 L/day
24 L/day
80 L/day
Catchment and Treatment System
4000 ft2
P
Potable
300 L/day
Filter
P
Mass Storage
Agriculture and Wastewater
350 L/day
Experimentation/Prototyping
Objective: Filter 300 L/day
Gravity
feed
Holding
tank
4 foot
prototype
Flow Rate = 99.2 L/m2*day
Diameter = 6 in = 0.152 m
Biological Slow Sand Filter Design
Anticipated flowrate = 130.4 L/m2*day
Areaexperimental = 3.0 m2
Areatheoretical = 2.3 m2
Schmutzdecke
Volume ~ 200 L
0.57 m dia.
0.85 m high
We will need
6 – 8 filters.
Collection Piping
Testing for Coliform
Methods:
• Laboratory
• One time use field tests
• Presence tests
• Local means
Clean water
Primary effluent
Pros:
• Reveals
Fecal coliforms
Other bacteria
• Portable
• Easy to Use
Cons:
• Cost - $10/each
• Non-reusable
• Restricted to occasional use
User Experience
User Attributes
User Actions
Ownership
Pump water
Responsibility
Set flow rates
Added Convenience
Better Health
Clean bio-layer
Switch filters
Enjoy Clean Water!
Business Model
Start up cost: $1,684.70
Will be saving $500 per year in Municipal
Water costs!
Goal:
The CYEC kids will own the
system and they make it a
success by applying the
system to other applications
Provide reliable
and cheap means
of Coliform testing
to the eco-village
and the near-by
communities.