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EVELOPMENT OF AN A RSENIC M ITIGATION S TRATEGY FOR B ANGLADESH Brian Clifton and Stewart Harwood, University of Oklahoma Executive Summary An activated alumina-based arsenic removal device has been developed and optimized for arsenic removal from well water in rural Bangladesh. The cost of implementing this plan is $4.79 per person, for each of the 80 million people affected. The cost over the ten year lifespan of the project is $383 million. The activated alumina device is designed to connect directly to the existing pumps used to draw water out of the wells, and to provide clean water at a spigot on the side of the device. Bangladesh has a population of 140 million people. Since 1993, arsenic contamination has been discovered in the majority of Bangladesh’s groundwater wells. The World Health Organization (WHO) standard for arsenic in drinking water is 10 ppb or less. Thirty million people in Bangladesh are currently drinking water with greater than 50 ppb arsenic, and fifty million people are drinking water with levels between 10 and 50 ppb. The figure below illustrates the widespread nature of the problem, by showing the percentage of people in each region of the country drinking toxic levels of arsenic. Figure 1: Extent of Arsenic Contamination in Bangladesh
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This note was uploaded on 08/31/2011 for the course CHE 4273 taught by Professor Staff during the Spring '10 term at Oklahoma State.

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