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<br />Title I Worl<s and Capital Costs <br /> <br />Chapter III <br /> <br />Title I Works and Capital Costs <br /> <br /> <br />Yuma Desalting Plant <br /> <br />The YDP, the central feature of the works <br />authorized by Title I, is located on a 60.acre <br />tract ofland 6 miles west of Yuma, Arizona. <br />(See photograph 1.) <br /> <br />Design Considerations <br /> <br />Process Selection <br /> <br />Public Law 93-320 stipulated that the YDP <br />use an advanced. commercially available <br />desalting process, As a result, applicable <br />technologies were narrowed to (1) dis. <br />tillation processes and (2) ionic processes <br /> <br />,~ <br /> <br />"'" <br /> <br />(ion exchange. electrodialysis, and reverse <br />osmosis), Electrodialysis and reverse <br />osmosis processes were selected fQr further <br />testing because of their projected lower <br />overall costs. Both processes use semi- <br />permeable membranes to remove ionic <br />constituents from the water, <br /> <br />From 1974 to 1978. a variety of electro. <br />dialysis and reverse osmosis processes <br />were tested at the Yuma Desalting Test <br />Facility (YDTF), (See chapter V, "Desalting <br />Research and Development.") The primary <br />objectives of the testing were (l) to provide <br />data for Reclamation and the manu. <br />facturers on desalting equipment, <br />(2) to provide information for evaluating <br /> <br />__. .-::-..-""'''';1..-.-:----:' <br />~.-.. -...("->>-. <br /> <br />.~~~ <br />'LIODf.?.. ~__-_ <br />"'I ~-, <br />t:i:-==.---=- ;:. - ~._ <br />" -.----=..=------- ~ .~~_.'!-..~ <br />-- - ~- --- ~ -=____ -------.. - t! <br />~_e.-- --................__~..- , -~~ ~~ <br />~ 0-...... ,~~.:. r~~ Gr008";':-_1.'_-~ <br />J-..""<:..~..... ..._ ...:._' _, -..:~_..._ '... 1(:~:; ~~:- <br />~: '--:~ -,- ~--~!'"I".:L.f ;I.. V- ~~ <br />,~ ''-''~-. ..~. .....~~._~...~.~..o-."r- <br />. "--~~,. "'lI".,..__ _ 'Iw.:; "'",'" _~ _ ~_.OO' <br />t.-. - ~. .-~. ...,;..~.~--'.. ~..;_ <br />.- " ..!, --...-:.i.-...."~--=:~-.J-'".~ <br />:,..;. ...-- "" ~. . ~i \ "'-__>-... ~~~, ....... __ <br />.... 1"=-_ -:I" '-....___......... ~~. ~. .,. ~ <br />..~ - ...----;,. ".~. .- ~ .....,. <br />~ ~- - '- <br />r - -. .. . ... ..~..., - . - ._ <br />:"'"".--~.....~ ~ '---- -- ~o...l_--' -..~--.- <br />ll, ~.. ;:~~~ ~.....lt......:'~ r 1- ...-:~ - ~'~'T. <br />..' .~..,i:--.... _ ~__ ___ '1 <br /> <br />Photograph I.-Yuma Desafting Plant complex, <br /> <br />7 <br />