Marcus G. Daniels wrote: > Raymond Parks wrote: >> Um, I'm confused by what appears to be a non sequitur. >> > Are the microfiltration/reverse osmosis/UV treatment/Hydrogen Peroxide > technologies cheaper for large installations? > As far as I understand, OC purifies the sewage to quality of distilled > water (using above), and then pump it back into their aquifiers. > > http://www.gwrsystem.com >> The latest improvement to the wastewater treatment plant cost $70 million. >> Albuquerque has about 25% of New Mexico's population (about 1/3 of >> New Mexico's population live in the ABQ metro area). > Ok, so ABQ is spending about $140 per person on that plant ($70 million > for 500,000 people). OC is spending $96 per person on theirs ($480 > million for 5 million people). It seems to me that the more > sophisticated OC technology is cheaper. Presumably there are economies > of scale, but $70 million is still a big chunk of change.
The $70 million was just for the systems to resolve nitrogen contamination, as I understand the ABQ web-site. I couldn't find a single line item in the ABQ budget for wastewater treatment - it's subsumed into the water supply system budget. ABQ is actually under greater constraint than OC - they don't have reservations downstream that have very high standards of clean water. I don't know which techniques ABQ uses - but one of the considerations should be the energy cost of the treatment method. -- Ray Parks [EMAIL PROTECTED] Consilient Heuristician Voice:505-844-4024 ATA Department Mobile:505-238-9359 http://www.sandia.gov/scada Fax:505-844-9641 http://www.sandia.gov/idart Pager:800-690-5288 ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.friam.org
