Record Display for the EPA National Library Catalog


Main Title Role of polyelectrolytes in filtration processes /
Author O'Melia, Charles R.
Other Authors
Author Title of a Work
Hannah, Sidney A.
CORP Author North Carolina Univ., Chapel Hill. Dept. of Environmental Sciences and Engineering.
Publisher U.S. Environmental Protection Agency,
Year Published 1974
Report Number EPA-670/; EPA-670-2-74-032; EPA-R-800351; EPA-ROAP-21ASQ-11
Stock Number PB-233 271
OCLC Number 07810668
Subjects Polyelectrolytes ; Filters and filtration
Additional Subjects Filtration ; Filter aids ; Polyelectrolytes ; Sewage treatment ; Dispersions ; Suspended sediments ; Transport properties ; Waste water ; Adsorption ; Water treatment ; Polymers ; Calcium phosphates ; Latex ; Particles ; Electrostatic charge ; Fluid filters ; Coagulation ; Theory ; Poly(imine-ethylene) ; Chemical reaction mechanisms ; Destabilizing chemicals
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 670-2-74-032 Headquarters Library/Washington,DC 06/17/2013
EJBD  EPA 670-2-74-032 Headquarters Library/Washington,DC 08/27/2015
ELBD RPS EPA 670-2-74-032 repository copy AWBERC Library/Cincinnati,OH 04/12/2017
NTIS  PB-233 271 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation x, 82 pages : illustrations ; 27 cm
This research has been conducted (1) to determine how destabilizing chemicals function in enhancing the effectiveness of filtration processes, and (2) to consider selected applications of destabilizing chemicals in filtration for the treatment of wastewaters. The investigations have included (1) laboratory experiments using polymers and latex suspensions, (2) laboratory and pilot plant experiments using alum, polymers, and trickling filter effluent, and (3) laboratory experiments using polymers and calcium phosphate suspensions. The report includes conclusions regarding the mechanisms of polymer action in filtration, the results that can be obtained using polymers as filter-aids, and the application of this knowledge to the design of filtration processes for wastewater treatment.
"April 1974" EPA 670-2-74-032 Program Element No. 1BB043. Grant No. R-800351. Includes bibliographical references (pages 75-78).