Record Display for the EPA National Library Catalog


Main Title Reclamation of Acid Rinse Water.
Other Authors
Author Title of a Work
Dempsey, R. M.
LaConti, A. B.
Publisher Defense Technical Information Center,
Year Published 1974
Report Number AD-A009 167; DAAK02-73-C-0407
OCLC Number 907255087
Subjects Membranes ; Polyphenylene oxide ; Fabrication ; Performance(Engineering) ; Reverse osmosis ; Polypropylene ; Substrates ; Films ; Acids ; Sulfates ; Nitrates ; Polymers ; Neutralization ; Ion exchange ; Desalination ; Sulfonates ; Waste treatment ; Waste water ; Casting ; Industrial Chemistry and Chemical Processing ; Water Pollution and Control
Library Call Number Additional Info Location Last
EKBD  AD-A009 167 Microfiche collection Research Triangle Park Library/RTP, NC 04/21/2015
Collation 47 pages
"AD-A009 167." "DAAK02-73-C-0407." "Filmed 6-9-75 NTIS." Microfiche.
Contents Notes
Manufacturing techniques were modified and optimized for preparing composite films of sulfonated P3O (polyphenylene oxide). Polymer ion exchange capacity (IEC) was coated onto promising porous substrate materials using a meniscus coating technique. Composite films of the 1.5 IEC polymer on Celgard KKX-2 porous polypropylene appeared to offer the most promise for meeting the contract requirements of 10 gsfd flux and 90% acid rejection of a feed containing 0.2% H2SO4 and 0.1% HNO3. Three trial spiral wound modules were fabricated. The modules were evaluated. Manufacturing procedures were developed to prepare tighter composite films of S-P3O on Celgard KKX-2 porous polypropylene. It is suggested that the meniscus coating technique be extended to development of composite films of S-P3O on laminated porous polysulfone (dacron sailcloth backing). Practical casting solvent systems compatible with polysulfone have been developed. (Modified author abstract).