||Treatment of Laundromat Wastes.
Aulenbac, Donald B. ;
Tow, Patrick C. ;
Chilso, Martha ;
||Rensselaer Polytechnic Inst., Troy, N.Y.
Industrial waste treatment ;
Water reclamtion ;
Sand filtration ;
Ion exchange resins ;
Diatomaceous earth ;
Biochemical oxygen demand ;
Winfair Water Reclamation System ;
American Laundry Machinery Industries ;
Water pollution control
||Some EPA libraries have a fiche copy filed under the call number shown.
Laboratory and field studies were conducted to evaluate the laundromat waste treatment capabilities and the effluent recycling possibilities of two systems. The Winfair Water Reclamation System (WWRS) involves the addition of alum at a pH of 4, sand filtration, and passage through an ion exchange resin. The American Laundry Machinery Industries (ALMI) Diatomaceous Earth Filtration System employs chemical precipitation prior to filtration. The WWRS system produced an effluent suitable for discharge into many streams. For effluent recycling, a functioning demineralizer would be required. The ALMI system increases effluent alkalinity and hardness and render very questionable the suitability of efluent reuse without softening and pH adjustment. The introduction of the system into existent laundromats would increase the cost of washes by about 10 cents. (Modified author abstract)