Accession Number : AD0784445

Title :   Reclamation of Acid Rinse Water.

Descriptive Note : Final technical rept.,

Corporate Author : GENERAL ELECTRIC CO LYNN MASS DIRECT ENERGY CONVERSION PROGRAMS

Personal Author(s) : Dempsey,R. M. ; LaConti,A. B.

Report Date : JUL 1974

Pagination or Media Count : 47

Abstract : 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)

Descriptors :   *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

Subject Categories : Industrial Chemistry and Chemical Processing
      Water Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE