Welcome, Bienvenidos, Karibuni, Velkommen to the world of all things related to AK: Klose and Kyvik, New York and Norway, Musica y Deportes, Berzerkeley, Tanzania, London etc...
Tuesday, February 12, 2008
SODIS: Solar Disinfection of Water
SODIS solar disinfection of water is perhaps the cheapest and easiest to implement of all Andy’s projects: fill a bottle with water, leave it in the sunshine for a few hours, the water heats up, the parasites die.
I’ll get to the specifics in a bit, because it’s a bit more complicated than this, but consider the fact that most African villagers use charcoal (which means they cut down all the trees in their shamba) to make their water safe for drinking. Now consider that more women and children die in Africa each year from smoke than from malaria. No, I don’t mean cigarette smoke (thankfully, this is one category in which Africans are world leaders) but smoke from cooking fires, which is inhaled at close range by women and children on a daily basis. One-week old babies, wrapped tightly against mother’s back as she stirs the evening meal, are powerless to stop the smoke from entering and destroying their tiny lungs. Respiratory systems are severely damaged, leading to an overall reduction in immune system efficiency and an ultimate death from flu or pneumonia.
Can these deaths really be prevented just by putting bottles out in the sun? Andy believes so, and so do the thousands of villagers in the Iringa region who he has helped to begin purifying their water by using SODIS technology. Ideally, the bottle should be between 1 and 2 liters in capacity, and should be placed on a strip of corrugated metal to help the water heat up faster and more thoroughly. This allows the water to reach 30 degress C, at which point all harmful parasites die. Two hours of direct, hot sunshine will do the trick, but six is better.
But where can the villagers get corrugated metal and plastic bottles? Half the mud huts in these villages are roofed with corrugated metal, so there are always scraps lying around, and there just so happens to be a spring water-bottling factory (Maji Afrika) not 30km outside Iringa. These bottles are usually chucked from bus windows (like the blue plastic bags that blight the gorgeous African landscape) or into burn piles where they leach their poisonous chemicals into the atmosphere one way or another. So instead of degrading the environment with these bottles, we can actually beautify the land and save people’s lives while we’re at it.
Andy has introduced this concept to dozens of local schools, ensuring that each child places a full bottle of water on the roof of the classroom in the morning, so that when school ends he or she can take a bottle of clean water home for the night. Anette and I have been using SODIS here at home in Iringa for several months now, and we would like to help students at all 23 of FORS’ schools in Idodi and Pawaga to do the same thing.
Subscribe to:
Post Comments (Atom)
11 comments:
get viagra buy viagra in london england viagra vs cialis marijuana and viagra buy viagra in england cheap viagra tablets viagra facts viagra pharmacy viagra larger forever how long does viagra last how to get viagra uk viagra sales homemade viagra how does viagra work
Good post and this fill someone in on helped me alot in my college assignement. Thanks you seeking your information.
blind dating book pete http://loveepicentre.com/success_stories.php dating in kenosha wi
[url=http://loveepicentre.com/taketour.php][img]http://loveepicentre.com/uploades/photos/6.jpg[/img][/url]
online anime dating sims [url=http://loveepicentre.com/advice.php]milf free dating sites[/url] bpd woman dating married man
free hookup sites dating [url=http://loveepicentre.com/]top rated married dating sites[/url] rules for teen dating
precision dating tampa [url=http://loveepicentre.com/taketour.php]local dating forums flushing mi[/url] dating by singles
[url=http://loveepicentre.com/advice.php][img]http://loveepicentre.com/uploades/photos/3.jpg[/img][/url]
free online dating services shelley idaho [url=http://loveepicentre.com/testimonials.php]who is mark sanchez dating[/url] adult sex dating in rhode island
vintage singer sewing machine dating [url=http://loveepicentre.com/advice.php]dating cougars charlotte north carolina[/url] who is jeana keough dating
stop dating [url=http://loveepicentre.com/articles.php]dating relationships high school[/url] muslim uk dating sites
[url=http://loveepicentre.com/success_stories.php][img]http://loveepicentre.com/uploades/photos/7.jpg[/img][/url]
diniyar bilyaletdinov dating [url=http://loveepicentre.com/map.php]first borns dating[/url] speed dating aberdeen scotland
carbon dating error [url=http://loveepicentre.com/success_stories.php]vietnamese dating club[/url] dating conversation
tarot cards and dating [url=http://loveepicentre.com/taketour.php]speed dating kansas city[/url] lindlee dating
adobe software serial number http://buyoemsoftware.co.uk/product-11111/PDF-Filler-Pilot-1-28 sennheiser wireless frquency compatability software [url=http://buyoemsoftware.co.uk/it/product-37261/SWFKit-Pro-3-2]what is the best ecommerce software[/url] metaquotes software corp
[url=http://buyoemsoftware.co.uk/product-14725/SpamSieve-2-6-Mac]SpamSieve 2.6 [Mac] - Download OEM, Software Sale, OEM Software[/url] blackberry desktop manager software download
[url=http://buyoemsoftware.co.uk/product-36504/MONyog-Ultimate-4-5][img]http://buyoem.co.uk/image/5.gif[/img][/url]
system utilities software http://buysoftwareonline.co.uk/de/product-10273/Macromedia-Contribute-3-Mac adobe animation software [url=http://buysoftwareonline.co.uk/product-36049/SSW-Code-Auditor-13-6]computer aided fashion design free software[/url] mediawiki software
[url=http://buysoftwareonline.co.uk/es/category-12/Multimedias-y-entretenimiento]Multimedias y entretenimiento - Download OEM, Software Sale, OEM Software[/url] xbox game coping software
[url=http://buysoftwareonline.co.uk/fr/product-37114/Eltima-SWF-FLV-Toolbox-3-5][img]http://buyoem.co.uk/image/4.gif[/img][/url]
[url=http://certifiedpharmacy.co.uk/products/zocor.htm][img]http://onlinemedistore.com/8.jpg[/img][/url]
pharmacy benefit management audit http://certifiedpharmacy.co.uk/products/bactroban.htm international pharmacy cyprus [url=http://certifiedpharmacy.co.uk/products/maxalt.htm]roles of pharmacy companies in healthcare policy making[/url]
book review the food pharmacy jean carper http://certifiedpharmacy.co.uk/products/lexapro.htm jackson memorial miami pharmacy residency [url=http://certifiedpharmacy.co.uk/products/diamox.htm]diamox[/url]
tshwane univesity of technology school of pharmacy http://certifiedpharmacy.co.uk/products/rave--energy-and-mind-stimulator-.htm cvs wakefield ma pharmacy phone [url=http://certifiedpharmacy.co.uk/products/oxytrol.htm]valium no prescription us pharmacy[/url]
online uk pharmacy http://certifiedpharmacy.co.uk/products/cardizem.htm buy hydrocodone pharmacy [url=http://certifiedpharmacy.co.uk/products/menosan.htm]menosan[/url]
[url=http://englandpharmacy.co.uk/catalogue/u.htm][img]http://onlinemedistore.com/11.jpg[/img][/url]
aseptic technique in pharmacy http://englandpharmacy.co.uk/products/lisinopril.htm online pharmacy technician course [url=http://englandpharmacy.co.uk/products/viramune.htm]role of pharmacognosy in pharmacy[/url]
beachside pharmacy http://englandpharmacy.co.uk/categories/female-enhancement.htm i want to buy topamax from non prescription pharmacy [url=http://englandpharmacy.co.uk/products/prometrium.htm]prometrium[/url]
discount pharmacy purchase zoloft http://englandpharmacy.co.uk/products/claritin.htm cvs pharmacy midlothian va [url=http://englandpharmacy.co.uk/categories/party-pills.htm]compare pharmacy[/url]
lafamme mexico pharmacy http://englandpharmacy.co.uk/products/buspar.htm pharmacy mail order options [url=http://englandpharmacy.co.uk/products/anafranil.htm]anafranil[/url]
college girls college university dating http://loveepicentre.com/faq/ asian dating tip
dating marriage customs in thailand [url=http://loveepicentre.com]birmingham alabama free dating[/url] dating how to avoid a kiss
dating haeger pottery [url=http://loveepicentre.com/articles/]cuckold message board cuckold dating[/url] yaoi dating sim [url=http://loveepicentre.com/user/jbu12/]jbu12[/url] dating sights
Post a Comment