MIT2_500s09_sw02_report

MIT2_500s09_sw02_report - MIT OpenCourseWare...

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Unformatted text preview: MIT OpenCourseWare http://ocw.mit.edu 2.500 Desalination and Water Purification Spring 2009 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms . Cisterns ‐ A Potential Water Source for Paulette and Phaeton 2.500 Class Project May 14, 2009 Abstract Paulette and Phaeton are small villages in Haiti that currently rely on a pumped water system to supply their fresh water. Citizens of the villages currently spend 10% of their income on water from the pumped water system. This report details the selection and design of a cistern water system to provide fresh water for Paulette and Phaeton. An analysis of other water sources provided by desalination is also presented. The cistern system is chosen over the desalination alternatives due to its lower cost, ease of construction and maintenance, and ability to be constructed from local materials. In addition, a full life cycle cost analysis of the cistern system is presented. The resulting life cycle water costs are higher than the water delivered by the current pumped water system. However, the analysis shows that the operating costs for the cistern system are lower than the pumped water system. The suggested course of action is to donate the cistern systems to less fortunate families in Paulette and Phaeton to reduce their water costs. The installation of these systems will stimulate the local economy. Another suggestion from this report is that the pumped water system be properly maintained and an upgrade to this system could also reduce the water costs for the community. 1 Introduction 1.1 Background & Motivation Paulette and Phaeton are small villages located on the northern coast of Haiti. The majority of citizens in Paulette and Phaeton currently pay for their drinking water from diesel ‐ powered pump system. The average person in these villages earns less than $1.00 per day, and water costs amount to approximately 10% of their income. An inexpensive, clean water system would make a large impact on the lives of citizens of Paulette and Phaeton. Groundwater could potentially be used to provide drinking water for the people of Paulette and Phaeton. Brackish community wells and hand dug wells exist in both villages. The salinity of these wells varies between 1200 ppm to 3000 ppm based on field test kits. This is well above the recommended limit of 500 ppm specified by the World Health Organization [1]. Desalination will be required to make this water drinkable. Other natural water sources could also be used to provide drinking water to the citizens of Phaeton and Paulette. Haiti has a rainy season, and rainwater could be captured and stored to provide residents with drinking water. An efficient water transportation system from an area with excess water resources is also another potential source of drinking water....
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This note was uploaded on 02/27/2012 for the course MECHANICAL 2.500 taught by Professor Miriambalaban during the Spring '09 term at MIT.

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MIT2_500s09_sw02_report - MIT OpenCourseWare...

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