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Solar Chlorine Generator
Sponsored by Dow ChemicalFall 2012
Nick Lubenetski, Kelly Helfrich, Brittany LaBadie, David Blyton
Big PictureProblem: Every year there are millions of deaths resulting from contaminated drinking water
Our goal: Is to make a simple cost effective water purification device that can be operated by a common
person in Morocco
Project GoalsResearch and understand project background
(solar, chorine generation, filtration)Understand previous design failures and
successesDesign a prototype for SUNUBuild first round prototypeTest and modify prototypeWrite instruction sheet/video to be sent over
with prototype◦ include safety information
Include a detailed final report with what we found and why we chose design◦ all research included
Last Semester’s Project
What was
accomplished
• Prototype built
• Sealed the
container
• Researched
Scrubber systems
How it works
Brine Water Used
Electrolysis
Chlorine generated
reacts with harmful
bacteria
Positives of This Model
Cheap Method
All supplies are Accessible
Easy to Use
Generates Chlorine from
Brine water
Problems with Current Design
The current model is not solarRelease of very harmful chlorine gas Purified water is not accessible Installing Scrubber System is complicated
What needs to be addressedThe release of harmful chlorine
gasAccessing the purified water Making the system solar powered
Research• Our water• How to purify it• Bleach• Carbon Filtration• Chlorine Generation
Our WaterThree basic categories
1. Protozoa2. Bacteria3. Viruses
BleachAdd specified amount of bleachWait 30-60 minutes until water is
clearCan purify 5,460 gallons for $4Only kills bacteriaMay also need to be filtered
Carbon FiltrationActivated carbonWhat it’s best at removingWhat it’s not good at removingSilver or KDF-55 used to prevent
bacteria growth
Carbon Filtration Use
1. Water passes through mesh/screen filter
2. Passes through activated carbon filter
3. De-ionizing filter used
Chlorine GenerationEffects of chlorineSalt used for reactionForms hypochloriteUsed for water filtration
New DesignPurposeApplicationConstraintsBleach design
Solid Works Design
Bleach Storage
Mixing Tank
Storage tank
Carbon Filter
Addition of Bleach
Manual addition one time a month
Drains via gravitySmall amounts addedCalculations
Mixing Tank
Continuously stirred
Feed streams (bleach/water)
Assumptions & calculations
Storage Tank/Filtration
Storage tank◦ Stores purified water waiting to be filtered◦ Size◦ Underground to maximize space
Carbon Filtration◦ Pumped up from underground storage tank◦ Removes contaminants and dirt just before use or
consumption
Picture sources http://omiusajpic.org/topics/safe-drinking-water/ http://www.umcor.org/UMCOR/Resources/News-Stories/2012/
April/Miracle-Moringa--Growing-Wild-in-African-Backyards http://www.fluidmixer.com/CSTRs/Perfect-Mixing.aspx http://www.filtersfast.com/articles/Guide-to-Water-
Purification.php http://www.rainshowermfg.com/page16/page36/page36.html http://newwater.com.au/ http://www.luxist.com/tag/drinking+water/ http://www.riversideonline.com/source/images/image_popup/
id7_germtypes.jpg http://www.clorox.com/img/products/regular/hero_product.png http://www.extension.purdue.edu/extmedia/WQ/images/WQ-
13.fig1.gif http://www.goldstockbull.com/articles/time-buy-solar-stocks/ http://toponlineengineeringdegree.com/?page_id=98
Data Sources Bleach Research
http://www.doh.wa.gov/Emergencies/EmergencyPreparednessandResponse/Factsheets/WaterPurification.aspx
How to build your own at home generator-http://www.ehow.com/how_7590604_build-diy-homemade-chlorine-generator.html
Water purification w/ video- http://www.tngun.com/diy-chlorine-generator-for-water-purification/
Chlorine facts- http://www.bt.cdc.gov/agent/chlorine/basics/facts.asp◦ http://www.dhs.wisconsin.gov/eh/chemfs/fs/chlorine.htm and http://◦ deploymenthealthlibrary.fhp.osd.mil/Product/RetrieveFile?prodId=300
Existing products- http://www.hayspurewaterforallfoundation.com/products.html Existing project- http://www.gomanzanillo.com/features/cleanwater/index.htm Bucket and Berkey system- http://www.youtube.com/watch?v=4KExgPPfF2o Buying a Berkey Filter-
http://www.berkeyfilters.com/berkey-water-filters/replacement-filters/black-berkey/ http://www.sedifilt.com/drinking_water/
activated_carbon_granular_and_solid_block.html http://www.sedifilt.com/drinking_water/
health_effects_of_chlorine_in_drinking_water.html http://doultonusa.com/HTML%20pages/activated_carbon_water_filtration.htm http://des.nh.gov/organization/commissioner/pip/factsheets/dwgb/documents/dwgb-
2-12.pdf http://www.lenntech.com/Data-sheets/Ion-Exchange-for-Dummies-RH.pdf http://doultonusa.com/HTML%20pages/activated_carbon_water_filtration.htm http://en.wikipedia.org/wiki/Carbon_filtering http://science.howstuffworks.com/environmental/energy/question209.htm