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AR2final - Date To Professor Fellows WTSN 104 and Team...

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Date: 4/7/08 To: Professor Fellows, WTSN 104 and Team AquaForce From: Logan Spring Subject: Analytical Review #2 Introduction AquaForce’s Problem Statement: How can fresh water in Kenya be sanitized for drinking? How does this article relate to Team AquaForce? Using filters to sanitize water has become a standard practice in scientifically advanced societies. It has come to be well known that the use of disinfectants including chlorine and iodine have played a key role in most water purification processes as well. Filtration as well as chemical cleansing are both processes of sanitization known as point-of-use methods. However both of these methods are incomplete on their own. A water treatment system, which employs use of both of these means of sanitization, results in the safest drinking water. Implementation of a dual system would effectively decontaminate the drinking water of millions of people. The topic of a dual decontamination system is discussed in great detail throughout out the article titled “Microbiological performance of a water treatment unit designed for household use in developing countries” by Thomas Clasen, Suresh Nadakatti and Shshikala Menon. This article focuses on a water treatment system based on the concept of combining multiple methods of sanitization in order to effectively decontaminate water more efficiently What is the purpose of this article? Tainted drinking water is the leading cause of preventable disease in developing countries. This is especially true for low-income families who generally have limited access to drinking water and relatively no access to safe drinking water. Due to this fact, it is the goal of this article to “promote childhood survival…and safe drinking water…(while) mak(ing) available the benefits of new technology.” (Clasen, Nadakatti & Menon, 2006). By utilizing today’s technologies to their zenith, a water treatment system can be designed that will play an active role in the health and development of these struggling nations. What are the main questions addressed in this article? In order for the engineers of this project to reach these goals, it was obvious that a treatment process which had the ability to maintain microbial quality of drinking water at the household level was the optimal design. What needed to be researched was which design would be most effective. This process began by designing a system was capable of filtering and disinfecting the input water simultaneously. This must be done in order to “overcome the shortcomings of other household-based water treatment systems” (Clasen et al, 2006). Other questions discusses by the authors were the appropriate size, cost and efficiency of the filter. They concluded that the filter must not only do a sufficient job
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sanitizing water, but also must be made affordable, sustainable and scalable in order to create widespread adoption.
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