Record Display for the EPA National Library Catalog


Main Title Crazed Resin Filtration of Combined Sewer Overflows.
CORP Author Hercules, Inc., Cumberland, Md. Allegany Ballistics Lab.
Year Published 1968
Report Number DI-14-12-39; 01487,; 4
Stock Number PB-187 867
Additional Subjects ( Water pollution ; Reduction) ; ( Rainfall ; Sanitary engineering) ; ( Sewage ; Volume) ; ( Liquid filters ; Feasibility studies) ; Plastics ; Crazing ; Water filters ; Fibers(Synthetic) ; Manufacturing methods ; Porous materials ; Permeability ; Fluid dynamic properties ; Hydrostatic pressure ; Design ; Performance(Engineering) ; Cost effectiveness ; Sewage filtration ; Combined sewers ; Overflows ; Sewer filters ; Volume reduction ; Dispersions ; Crazed plastics ; Pressure filtration ; Evaluation
Library Call Number Additional Info Location Last
NTIS  PB-187 867 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 127p
Increased sewage flows during storm conditions in most combined sewer systems dictate that most or all of the flow be diverted from treatment facilities directly to the receiving body because the flow exceeds the treatment capacity. If a large amount of the solids can be removed before discharge to the receiving water, a major part of the pollutional load would be removed. The feasibility of developing a self-cleaning, self-adjusting filtering device constructed of cylindrical structures of fibers laid down in predetermined patterns by a winding process and bonded in place by resins was investigated. The permeability of the structure is imparted by a mechanical cracking of crazing of the resin. Filtration runs showed a 62 percent reduction of suspended solids in the filtrate. However, sustained runs could not be realized. The self-cleaning aspect was not demonstrated. (Author)