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solar water pasteurizers provide safe drinking water for schools, hospitals, and villages in tanzania

five solar water pasteurization systems were purchased and shipped to tanzania, east africa in june, 1996 as part of a pilot project sponsored by colorado�s greeley redeye rotary, three other colorado rotary clubs, lutheran world relief and two colorado lutheran churches in an effort to bring safe drinking water to remote areas of that developing nation.

three of the pasteurizers, developed by honolulu, hawaii-based safe water systems, went to sites in or near arusha: selian lutheran hospital, maasai school for girls, and dareda agricultural development center (for use as a demonstration and training model). the other two were destined for the multi-village, 900-student okokola primary school; and huywya, a program aiding 45,000 children orphaned by war and aids in bukoba. john grandinetti, safe water systems president, traveled to tanzania to oversee the installations.

"it�s a very special gift as it allows us to assure our patients that they will not get sick from drinking the water at the hospital," writes mark l. jacobson, m.d., administrator of the selian lutheran hospital, after installation of the solar water pasteurizer. now we can offer water that is safe to drink. we are supplying all 115 beds in the hospital with drinking water from the single unit."

according to grandinetti, unsafe drinking water is one of the leading health challenges in the world today because 80% of all infectious diseases in developing countries are transmitted through water. as a result, each year more than four million children die.

firewood for boiling contaminated water is often not available in these countries. "when fuel is available," says grandinetti, "most villagers can't afford the cost and continue to drink directly from polluted rivers and streams. this new solar technology completely disinfects even sewage-laden water and produces safe, clean water for less than one cent a gallon. it has helped to alleviate enormous suffering caused by diseases transmitted through contaminated water."

the state-of-the-art pasteurizer operates on the same water-heating principle as a solar cooker but disinfects large quantities of water-up to 750 liters a day. it channels contaminated water through a standard solar water heating panel. the key to the system�s effectiveness is a thermal control valve that keeps the water trapped in the panel until it reaches 175� f / 79.4� c, a temperature hot enough to destroy any biological microbes that can cause illness.

besides supplying safe drinking water to hundreds of people without the environmentally damaging effects of burning wood or kerosene, the pasteurizers offer another advantage: they can provide an economic opportunity‹a way for families in developing countries to break out of the poverty cycle and earn an independent income by supplying low-cost pasteurized water to their communities. such opportunities will eventually allow communities to manage their own needs and reduce their dependence on outside sources.

for more information, contact safe water systems at 808-539-3937; e-mail: info@safewatersystems.com; web site: http://safewatersystems.com.

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