Portable Filtering System
Portable Filtering System Adam Tanbouz
Jie GuShivam Mathur
Vaibhav Mal
Agenda
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• Aquaquick Team
• Motivation - Need for product - Product Overview
• Market and Competition
• Inner Workings - Energy Generation - Filtration Process
• Product Testing
• Project Specifics - Team Dynamics - Finances and Timeline
• Looking Back and Thinking Ahead- What we learnt from this experience- Future improvements • Conclusion
• Acknowledgements & References
• Questions & Demo
AquaQuick Team
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Vaibhav Mal – President and Chief Executive OfficerConcept and team dynamics
Shivam Mathur – Chief Technical OfficerR&D UV Technology and Implantation
Jie Gu – Chief Financial OfficerR&D Finances and Mechanical building
Adam Tanabouz – Mechanical LeadR&D Mechanical and Electrical Building
Motivation
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Need for the product
• What problem is it addressing
• Earth – Two third water
• Human Body – Approx 70% water
• 1.5 billion people without regular access to water4 Million deaths annually
• People walk an Average of 3.7 miles and spend 16 hours a week (2 hours a day)
Product Overview
Market and Competition
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Filtering Products
• Many available• None reusable, self sustaining and durable
Other Methods
• Iodine tablets• Battery powered filters• Charcoal filters
Hand crank
• Cannot be used on the go
Energy Generation
Txt
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• DC voltage generator to charge a battery. • Ultraviolet bulbs that work at 12 V DC and have the required specification to kill bacteria.
Current range Calculation
RPM of the cart’s speed
- 47 cm diameter wheel and a stop watch, it was found equal to 40 RPM
- 47 RPM = 50 to 80 Watt for one hour
- Maximum current rating = 70 Watt /12 V= 5.8 A
- Nominal operating current = 40 Watt /12 V= 3.3 A
- 40 RPM x wheel’s circumference = 59.2 meter per minutes. So, 3.55 KM in one hour.
The generator
- RPM generator- Current higher than the calculated currents.
- Permanent magnet DC motor from used car or appliance is powerful and cheap
- Wiper Motor from used vista eagle car 1992 model- 80 watt 12 VDC 6.7 A
- The generation of 13 VDC to 14 VDC was easy at low RPM that was calculated using stop watch. It was found Equal to 50 RPM
Gear Module
- Generator rotates in one direction, so gear module rotates in one direction.
- The gear ratio needed = The generator’s RPM/ The wheel’s
- RPM= 50/40= 1.25.
- Rotation are transferred by chain
The circuit
- The battery and the generator are connected in parallel
- Current flows from generator to the battery when the generated voltage is larger than the voltage of the battery.
The Circuit
Filtering Process
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Our Objective
• Get same results as boiling• Micro-organisms• Chemicals • Particles
Filtering techniques we used
• Mesh Filtering• UV Filtering• Sun Filtering
Filtering Process
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Mesh Filtering
• 20 micron Sediment Filter
• Reduces amount of sand, silt, dirt, and other particles.
• Two Layers
Filtering Process
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UV filtering
• UV-C Short wave- 100-280 nm
• UV Lamps
• Alter DNA of viruses, bacteria molds and parasites
• No chemicals added
• Class A and B
Filtering Process
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Sun Filtering
• UV-A Long wave- 315-400 nm
• (PET) Polyethylene terephthalate
• Deactivates diarrhea-causing organisms in polluted drinking water[2]
• Cumulative solar energy
• Aluminum – 75% UV Reflectivity[1]
Combined System
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Working together
• Simultaneous charging and lighting• Water movement
Other components
• UV Lamps case• Battery/Generator Cabinet• Water Tap• Reversible movement• UV lamp switch and generator switch• Mesh filter container
Lifetime
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UV Lamps - 8000 burning hours[7] (2hrs/day = 730hrs) - Recommended replacement - Annual - Contact retailers
Battery
Generator
Mesh Filter- 6 months life[8]
- Four replacement papers provided
Other parts- Contact retailers
Testing
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Testing Steps
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Pour the water getting from SFU pond on the mesh filter and exposure it under UV for 10 minutes
Prepare 2 water samples (one is from SFU pond , one is after treated)
Culture Bacteria: Mix the agar and pour it into the dish to cover the bottom Pour 1 ml sample water on the agar Set the dish in a warm dark cupboard for two to three days
Observe the bacteria colonies through the top of the dish
Testing Result (Untreated)
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Testing Result (Dilute Untreated Water)
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Sample No. Colonies1 372 453 404 265 50
Average 40
Total Colonies:40 * 1000 = 40,000
per 1ML
Testing Result (Treated)
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After treatment from aquaQuick, there are only 5 colonies!
99.9875% bacteria have been killed
Testing Result (Compare)
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SteriPEN Kills over 99.9% of bacteria and
viruses, and it gets WQA approved.
[4]
Team Dynamics (Teamwork)
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Share Ideas & Democratic ProcessWork Together
Team Dynamics(Individual Work)
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Finances
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Item Proposed ActualWheel Mechanism 105 50
Chain & Gears 0 10Pulley & Belts 25 0
Wheels 50 10Support 30 30
UV Components 100 117UV Lamp 40 25
Plexi Glass 10 12UV Circuit 50 80
Boiling Components 200 0Magnets 50 0
Coil 150 0Power Generation 225 147
Generator 200 50Battery 25 67Diode 0 4
Other Parts 150 209Cart 0 32
Container 50 10Mesh & Case 0 30
Cabinet 70 0Screws, Nuts & Washer 30 27Water Proof Seal & Tape 0 20
Paint 0 12Tap 0 10
Tools Renting 0 72Aluminum 0 6
Greese & Oil 0 5Total 680 520
Timeline
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Item Proposed Implemented
Order Parts & Drafts Oct-10 Ongoing
Generator & Power Circuits Oct-30 Oct-20
Transmission(Gears, Wheels & Chain) Nov-15 Nov-26
UV Circuit & Containers Functions Nov-30 Dec-02
Mesh & Case Dec-03 Dec-03
Integration Dec-05 Dec-07
Testing & Debugging Dec-10 Dec-10
Future Improvements
• Add Quartz around the UV tube
• Integrating Active Carbon Filtration
• Aluminum Mirror (200nm-10µm)[3]
• Replaceable UV Tubes
• Stronger Parts of Cart
• Indicator for Bulb Replacement
• Indicator for Water Quality
• Automatically Switch
[5]
[6]
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Conclusion
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- What do we take away from an experience like this?
- Mechanical skill and respect for tradesmen
- A lot of knowledge about Microbiology
- Great friendships and memories
Acknowledgements
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• Engineering Student Society Endowment Fund for their financial contribution
• Linda Pinto for her help with water testing
• Professors for their feedback and validation of our ideas and progress
References
[1] Ultraviolet Germicidal Irradiation Handbook by Wladyslaw Kowalski. Pg 153. UV Reflective Materials
[2] (2010). Solar Water Disinfection. Retrieved December 16th, 2010, from Wikipedia Web Site: http://en.wikipedia.org/wiki/Solar_water_disinfection
[3] (2010). Protected Aluminum Broadband Front Surface Mirrors. Retrieved December 16th, 2010 from PGO Online Web Site: http://www.pgo-online.com/intl/katalog/sea-uv.html
[4] (2010). See Water in a whole New Light. Retrieved December 12th, 2010, from SteriPen Web Site: http://www.steripen.com/
[5] http://www.youtube.com/watch?v=1KZ-Ebp3Ct0
[6] (2009). Retrieved December 20th, 2010 from ChineseMol Web Site: http://www.chinesemol.com/products/p19289.html
[7] (1995). UV Waterworks 2.0. Retrieved December 19th, 2010, from Berkley Lab Web site: http://www.lbl.gov/Education/ELSI/Frames/Sustain21-f.html
[8] (2010). Liquatec 20 Micron Sediment 2 ½ “ x 9 7/8” Cartridge Filter. Retrieved December 18th, 2010 from Aquapura Web Site: http://www.aquapurawater.ca/liquatec-20-micron-sediment-2-12-x-9-78-cartridge-filter-p-383.html?zenid=20034cf5cb124824e24e2a80b9cb569b
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Questions?