Full-scale demonstration of hyperfiltration for closed-cycle textile dyeing facility

✍ Scribed by C.A. Brandon; J.L. Gaddis

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 466 KB
• Volume: 23
• Category: Article
• ISSN: 0011-9164
• DOI: 10.1016/s0011-9164(00)82505-9

✦ Synopsis

A ~~.=&r.ar~.e systeo, employing both uitrafiltration and hyperfrltration, 1s being prepared for the closed-cycle cperation of a textile dyeing operatron. The direct recycle of both the chezicals and hot process vater will Eake the installation profitable; projected is a-4.3 year zetucn on investrent after taxes. This deconstration project is the culmination of a series of EPAtextile industry pro3ects that from 1972 through 1977 have evaluated many configurations of ultrafiltration and hyperfrltration with both cozzposite and unit process effluents in both field and laboratory tests. The demonstration project is a jointly sponsored project of the US Environmental Protection Agency, the Energy Research and Development Agency. and the OXKI' of the Dep artnent of the Interior. Results of cletirane perforannce are presented. Pejectiohs of salts, organics, and toxic metals are often found to -crease significantly during the first %lOO hours of processing vastewater or process effluents. This apparent formation of a pdynanic" uxiarase from constituents in the feed water usually results in flux declines different from those expected due to fouling layer buildup.