Saturday, May 17, 2008

Ceramic Water filters used for household disinfection in developing countries

GENEVA — A study of four household-based technologies for water disinfection has found that household chlorination is the most cost-effective of the four for preventing diarrhea outbreaks in those parts of the developing world where piped-in public water is not feasible, a new World Health Organization (WHO) study has found.

In their recently released study, Dr. Thomas Clasen of the London School of Hygiene and Tropical Medicine and Laurence Haller of WHO note that diarrhea kills an estimated 1.8 million people annually worldwide, and accounts for 17 percent of deaths of children under age 5 in developing nations. Most of these deaths are attributable to poor drinking water supplies or poor sanitation.

Analyzing information from water quality programs in 28 nations, Clasen and Haller concluded that household-based chlorination, with a cost per disability-adjusted life year (DALY) of US$53, was the most cost-effective among the four technologies studied for improving water quality at the household level.

Other DALY cost-effectiveness ratings for household-level disinfection technologies calculated in the study were: solar disinfection, US$61; ceramic filtration, US$142; and household flocculation/disinfection, US$472.

READ THE ENTIRE ARTICLE WHO study rates anti-diarrhea water treatment

FIND A BACTERIA AND TURBIDITY REDUCING WATER FILTER Ultracarb.Com

Wednesday, May 14, 2008

Earthquake may have caused Tennessee turbidity spike

ELIZABETHTON, TN — Some here are speculating that the April 18 Midwest earthquake may have caused a dramatic spike last week in turbidity of water drawn from wells supplying the Siam (TN) Utility District, according to an article in the April 29 Elizabethton Star.

Elizabethton is a few miles from Johnson City in far northeast Tennessee. News reports said the earthquake, centered in southern Illinois, registered a magnitude of 5.2 and was felt throughout the Midwest and Mid-South.

READ THE ENTIRE ARTICLE Earthquake may have caused TN turbidity spike

FIND A BACTERIA AND TURBIDITY REDUCING WATER FILTER Ultracarb.Com