I first ran across this on Good.is, and I was immediately struck by how familiar the scene in the left panel looked. Sure enough, the pictures come from Kenya. I’m willing to wager the pictures were taken in Kibera, a massive slum in Nairobi. Kibera is home to some 600 thousand to 1.2 million people (nobody really knows for sure) who live in makeshift shacks of wood, iron sheets, and whatever else can be found. There are lively markets, churches, a few charity clinics, but mostly shacks stretching out in every direction.
Toileting is a problem in Kibera. There are nearly no flush toilets: people rely upon privately-owned pit latrines (‘choo’ is Kiswahili for toilet). People pay a fee to use them, 3 shillings or about 4-6 cents. The cost is restrictive for many people living in poverty — this leaves several options. Some people will defecate in plastic bags and then throw them as far away from their home as possible. This creates a problem with ‘flying toilettes’, especially at night. Others will utilize a bed pan and dump it into the muddy streams flowing between the shacks. Children will often find a corner, drop trow, and defecate openly.
Anders Wilhelmson, a Swedish inventor and entrepreneur, seems to have come up with a novel solution: the Peepoo bag. What makes this bag different from an ordinary plastic bag is a layer of urea crystals which break down the waste into fertilizer and kills pathogens in feces. The bag can be tied off, buried, and safely disposed off. It’s such a simple idea, the cost is low (3 cents per bag), and it has the potential to really combat childhood diarrhea.
The Peepoo website is great, I would definitely recommend checking it out. I do have some doubts about the bag’s efficacy in killing fecal pathogens though. The company claims complete decontamination after 4 weeks at moderate temperatures (24C) and faster times at high temperatures (34C). The temperature in Nairobi rarely gets that high, and I wonder how long pathogens would remain in the bags. A really good sealing mechanism would be needed, especially during the rainy season. All that said, it will be very interesting to see what happens with this.
The first picture was found here, the rest were taken last summer or Fall 2008.