Record Display for the EPA National Library Catalog


Main Title Effect of Slow Sand Filter Maintenance on Water Quality.
Author Cullen, T. R. ; Letterman, R. D. ;
CORP Author Syracuse Univ., NY.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab.
Year Published 1985
Report Number EPA/600/J-85/286;
Stock Number PB86-164829
Additional Subjects Sand filters ; Water quality ; Municipalities ; Maintenance ; Turbidity ; Manpower ; Scrapers ; Cleaning ; Monitoring ; Flow rate ; Particle size ; Coliform bacteria ; Comparison ; Efficiency ; Reprints ; Drinking water ; Particulates
Library Call Number Additional Info Location Last
NTIS  PB86-164829 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
Full-scale, municipal, slow, sand filters at seven sites in the Syracuse, NY, area were monitored before, during, and after filter scraping to verify the presence or absence of a ripening period to determine the filter run length and to quantify the labor and material required for scraping and resanding operations. Results showed some evidence of a ripening period, ranging from 6 hr to 2 wk, in 4 of the 10 operations monitored. The factor that seemed to have the most significant effect on the quality of the filtrate was the amount and nature of the particulate matter present in the raw water.