Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Rotary precoat filtration of sludge from acid mine drainage neutralization /
Author Brown, T. S. ; Brow, T. S.
CORP Author Johns-Manville Products Corporation. Research and Engineering Center.
Publisher [Environmental Protection Agency, Water Quality Office],
Year Published 1971
Report Number EPA/140-R-71-007; 14010DII05/71; EPA-WQO-14010-DII; 13516,
Stock Number PB-203 190
OCLC Number 00286199
Subjects Sewage sludge--Drying. ; Filters and filtration. ; Acid mine drainage.
Additional Subjects ( Mine waters ; Neutralizing) ; ( Water pollution ; Mine waters) ; ( Sludge disposal ; Mine waters) ; ( Dewatering ; Sludge) ; ( Coal mines ; Mine waters) ; Filtration ; Calcium oxides ; Vacuum filtration ; Precipitation(Chemistry) ; Sedimentation ; Cost estimates ; Limestone ; Water pollution control ; Mine acid drainage
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 140-R-71-007 Headquarters Library/Washington,DC 02/11/2014
EJBD  EPA 140-R-71-007 Headquarters Library/Washington,DC 06/19/2014
ELBD RPS EPA 140-R-71-007 repository copy AWBERC Library/Cincinnati,OH 05/21/2019
NTIS  PB-203 190 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation vi, 121 pages : illustrations ; 28 cm.
A two year study was conducted at 4 locations in Pennsylvania to test the effect of various alkalies and filter aids on rotary vacuum precoat filtration for dewatering of lime neutralization sludge. The process consisted of neutralization, aeration, sedimentation and filtration. Alkalies investigated were limestone, limestone with hydrated lime, calcined magnesite, partially and fully calcined dolomite, and hydrated lime. Filter aids tested included Hyflo, Super-Cel, and Celite 501, 503, and 545. Results from the first three locations indicated limestone and hydrated lime were preferred alkalies and Celite 501 the preferred filter aid. At the 4th site a 27 run factorial experiment investigating the effect of flow rate, limestone feed level, aeration level, and sludge recirculation level on equipment operation and process cost was conducted. Sludge solids content, filtration rate, and sludge recirculation were found to be significant variables affecting process cost. Estimated operating costs for a 1.5 MGD treatment plant using lime neutralization were $1.16/1000 gallons treated or $8.02 per 100 lbs of acidity treated.
"14010 DII 05/71." Includes bibliographical references (page 21).