According to the text, poor sanitation
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Today is the 10th annual World Toilet Day. Sponsored by the Singapore-based World Toilet Organization, the event is meant to build awareness about the risks that lack of sanitation present to the physical, emotional and psychological health of 2.6 billion people around the world. Fortunately, poor sanitation is receiving an increasing amount of attention from NGOs, academics and other problem-solvers around the world. But there isn’t time to waste, since lack of hygiene contributes to diarrheal diseases that claim the lives of 1.5 million poor children each year.
Earlier this year, The Gates Foundation awarded a total of $3 million to researchers at 8 universities as part of its Reinvent the Toilet competition. Unlike the innovations that are taking place with flush toilets, these grants are aimed at designing, developing and prototyping waterless, hygienic toilets that cost less than $0.05 per user per day. The foundation also awarded a $4.8 million grant to the London School of Hygiene and Tropical Medicine (LSHTM) for a project called Sanitation Ventures. For it, researchers are developing ways to speed up the decomposition process in pit latrines. Organisms such as tiger worms, placed near the surface of the latrines, can effectively increase the speed of composting. Beneath that, in a filtration bed, liquid waste is further treated by aerobic bacteria. The end product is a treated sewage material that can later be used as a fertilizer.
And if that sounds gross, well, get over it. Human-waste-based fertilizer has been used in many parts of the world for centuries. The key is to process it correctly — at the right temperature and for enough time — to ensure that all pathogens are eliminated. In fact, aside from better public health, one of the major benefits of developing sanitation solutions for the developing world is creating an end product with value, such as fertilizer or biochar for energy.
(http://www.smartplanet.com/blog/design-architecture/ safe-sanitation-systems-close-the-loop-on-poop/2084-19/11/2011. Adaptado)
Safe sanitation systems close the loop on poop
By Mary Catherine O’Connor
Today is the 10th annual World Toilet Day. Sponsored by the Singapore-based World Toilet Organization, the event is meant to build awareness about the risks that lack of sanitation present to the physical, emotional and psychological health of 2.6 billion people around the world. Fortunately, poor sanitation is receiving an increasing amount of attention from NGOs, academics and other problem-solvers around the world. But there isn’t time to waste, since lack of hygiene contributes to diarrheal diseases that claim the lives of 1.5 million poor children each year.
Earlier this year, The Gates Foundation awarded a total of $3 million to researchers at 8 universities as part of its Reinvent the Toilet competition. Unlike the innovations that are taking place with flush toilets, these grants are aimed at designing, developing and prototyping waterless, hygienic toilets that cost less than $0.05 per user per day. The foundation also awarded a $4.8 million grant to the London School of Hygiene and Tropical Medicine (LSHTM) for a project called Sanitation Ventures. For it, researchers are developing ways to speed up the decomposition process in pit latrines. Organisms such as tiger worms, placed near the surface of the latrines, can effectively increase the speed of composting. Beneath that, in a filtration bed, liquid waste is further treated by aerobic bacteria. The end product is a treated sewage material that can later be used as a fertilizer.
And if that sounds gross, well, get over it. Human-waste-based fertilizer has been used in many parts of the world for centuries. The key is to process it correctly — at the right temperature and for enough time — to ensure that all pathogens are eliminated. In fact, aside from better public health, one of the major benefits of developing sanitation solutions for the developing world is creating an end product with value, such as fertilizer or biochar for energy.
(http://www.smartplanet.com/blog/design-architecture/ safe-sanitation-systems-close-the-loop-on-poop/2084-19/11/2011. Adaptado)
According to the text, poor sanitation
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