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Filtering Water with a Sari in Bangladesh

Posted on October 3, 2011 by Manish Leave a Comment

SariThe sari is a traditional form of dress worn by women in India, Bangladesh, Sri Lanka, and several other countries. While you may not be familiar with the name, the style is quite recognizable. Saris are usually long and flowing, multi-colored, and draped around a woman’s waist and over her shoulder. While often the marker of ethnicity, tradition, or style, women of Bangladesh rely on their saris for even more: water filtration.

The New York Times, has recently begun a new series of special reports: “Small Fixes, a special section on low-cost innovations that can save thousands of lives.” In a recent report, the Times notes that women in rural Bangladesh often use their saris to filter sweetened drinks, often to get rid of leaves, bugs, and various other debris.

While filtering a beverage of leisure offers many advantages, ten years ago researchers from Maryland realized that this simple technique could form the base of a much larger operation to relieve a very serious health risk. They discovered that “four thicknesses of laundered sari fabric, with its loosened, roughened cotton fibers, will strain out most of the microscopic plankton in water. In water contaminated by cholera, enough bacilli are attached to plankton for the quantity of cholera in filtered water to drop by more than 99 percent.”

Bangladeshi women from more than 27 local villages implemented the plan while retrieving drinking water from local rivers and canals. They “were taught to cover the urns they used for fetching water with an old sari folded in four. Over the next 18 months the rate of cholera in these villages dropped by about 50 percent, compared with other villages — about the same effect as that achieved by a much more expensive nylon water filter.”

Several years later researchers returned to the village to see if the plan had been enforced. Areas that utilized some form of water filtration noticed a drop in cholera outbreaks; however, women from several villages admitted to using only one strip of sari for filtrating water rather than the recommended four. The researchers learned that while there are simple solutions for complex problems, the solutions must be met with some form of continual reinforcement to have any lasting effect.

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Posted in Water and Air Education Tagged Bangladesh, cholera, cholera water treatment, rural water filtration, sari, sari water filtration, water filter, water filtration Leave a Comment

Seeds of Moringa Tree Used to Purify Water

Posted on July 29, 2011 by Steve Leave a Comment

An ancient technique for purifying water may offer new hope for the over 1 billion people who have no access to clean drinking water.  The Moringa oleifera tree has been used for hundreds of years by people in Sudan to purify water, as well as for food.  The method has never been widely disseminated, but in 2010 a publication by Michael Lea revealed the Moringa tree’s properties.  According to Lea, when the seeds of this tree are crushed into powder and mixed with surface water, a reduction of bacteria by 90-99 percent can be achieved.

This news provides great hope for those living in areas where the tree is widely grown, including Africa, Central and South America, India, and Southeast Asia. In Ghana, the Moringa tree is grown on plantations, and its leaves are used for food and the seeds used as a spice. According to the UN site IRIN, the tree grows quickly and resists drought, and can be grown in many areas.  The seeds are soft and can be easily crushed, the IRIN site further states.  The fact that the tree is already widely grown, and the ease with which the seeds can be crushed, make this method ideal for those without other sources of water purification.

Kebreab Ghebremichael, a water purification expert with UNESCO, states that using the seeds of Moringa tree is probably best employed at a household level.  According to him, the seeds would pose problems with odor and taste if forced to sit for extended periods of time when used on a large scale basis.  He further states that this method would work better for surface water than with underground water, and that it is best used for emergencies and where other methods of water purification are not available.

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Posted in Water and Air Education Tagged clean water, drinking water, filtered water, Moringa, Moringa oleifera, water filter, water filtration, water filtration purification, water treatment Leave a Comment

Aquabox: Rapid Response for Safe Drinking Water

Posted on May 25, 2011 by Kym Leave a Comment

AquaboxImagine creating a plastic box that would serve a multifunctional purpose for disaster victims. Aquabox, a charitable company registered in England, provides boxes for water purification to dispatch to areas where severe disasters strike. The aftermath of a disaster can leave victims in desperate need of core necessities like food, water and shelter. One of the most urgent challenges for disaster relief agencies is getting fresh, clean drinking water to those victims. Sometimes polluted water is the only source of water. Waterborne contaminants can rapidly cause epidemics such as typhoid and cholera. Many of the outbreaks of disease and infection that result from drinking polluted water could often lead to dehydration and diarrhea, particularly striking the very young.

Aquabox is a robust plastic tank packed with water purification tablets and essential welfare items for a disaster situation. Once the welfare contents have been removed, each Aquabox can be used to purify up to 1100 liters of polluted water, making it safe and pleasant to drink. For example, 1100 liters is equal to 5,000 cups. This is enough safe drinking water for a family of four to consume 10 cups of water per day, for about four months.

This survival box is filled with welfare items such as warm clothing, kitchen utensils, hygiene items and other general hardware. The actual contents depend on the individual or organization that donated and filled the box. By the millennium, Aquabox provided more than 20,000 boxes covering over 30 countries. During the past several years, many aid agencies received and monitored boxes such as Children’s Aid Direct, Feed the Children, Christian African Relief Trust, Containers of Hope and Nottingham Police Aid Convoys.

Clean drinking water can mean the difference between life and death. In the wake of mammoth disasters, natural and manmade, Aquabox is dispatched to areas in dire need of safe drinking water. Under the provisions of their charitable status, Aquabox seeks a donation in return for the box rather than making an outright sale. Aquabox can play a vital part in minimizing the after effects of a disaster.

 

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Posted in Water and Air Education Tagged aqua boxes, Aquabox, Aquabox rotary, Childrens Aid Direct, Christian African Relief Trust, clean drinking water, Containers of Hope, disaster relief, England water charity, Feed the Children, multifunctional water box, natural disasters, Nottingham Police Aid Convoys, polluted water, portable water filtration, portable water purification, rapid response, safe drinking water, water charity company, water filtration, water purification, waterborne contaminants Leave a Comment

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