MIT2_500s09_sw02_pres

MIT2_500s09_sw02_pre - MIT OpenCourseWare http/ocw.mit.edu 2.500 Desalination and Water Purification Spring 2009 For information about citing these

Info iconThis preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

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 . 2.500 Water Purification & Desalination 14 May 2009 ¡ Cost ¡ Materials ¡ Complexity/Reliability ¡ Operational Considerations All four considerations are critical. ¡ Current price: $1.20 per m 3 water ($0.0012 per liter) ¡ Target price: $0.60 per m 3 water ($0.0006 per liter) ¡ Compare to Ashkelon desalination (seawater RO): $0.45 per m 3 water ($0.00045 per liter) System Cost Complexity Material Operation RO MSF, MEE VC Solar Still Cistern Solar Still Cistern Comparable footprint. Materials widely available. Distributed solution. No existing infrastructure. Collecting area already exists. Lower manufacturing tolerance. Higher manufacturing tolerances. More likely to break. Less likely to break. Daily upkeep. Monthly upkeep. Requires pumped or hauled water. Water supplied by rain. ¡ Current water supply uses a pump which is most likely not operating at its highest efficiency. ¡ Replace pump with correctly-sized pump for cost savings without major change of infrastructure. ¡ Examine the 15-km piping for leakage. ¡ Cisterns would be ¢ Targeted at poorer households ¢ Possibly donated ¢ Installed on roofs ¢ Maintained by homeowner Image removed due to copyright restrictions....
View Full Document

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.

Page1 / 23

MIT2_500s09_sw02_pre - MIT OpenCourseWare http/ocw.mit.edu 2.500 Desalination and Water Purification Spring 2009 For information about citing these

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online