Record Display for the EPA National Library Catalog

RECORD NUMBER: 6 OF 12

OLS Field Name OLS Field Data
Main Title Physical-chemical treatment of municipal wastes by recycled magnesium carbonate,
Author Black, A. P.
Other Authors
Author Title of a Work
DuBose, A. T.
Vogh, R. P.
Publisher For sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Year Published 1974
Report Number EPA/660-2-74-055; EPA-12130-HRA
Stock Number PB-239 326
OCLC Number 01496539
Subjects Water treatment plants. ; Water--Purification. ; Magnesium carbonate.
Additional Subjects Sewage treatment ; Magnesium carbonates ; Coagulation ; Chemical removal(Sewage treatment) ; Nutrients ; Comparisons ; Phosphorus ; Nitrogen ; Calcium oxides ; Physical chemical treatment
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=2000Z5WJ.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJAD  EPA 660/2-74-055 Region 3 Library/Philadelphia, PA 08/02/1996
EJBD ARCHIVE EPA 660-2-74-055 Headquarters Library/Washington,DC 01/30/2012
EJBD  EPA 660-2-74-055 c.1 Headquarters Library/Washington,DC 05/17/2013
EKAM  TD430.B524 Region 4 Library/Atlanta,GA 03/14/1997
NTIS  PB-239 326 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation ix, 113 pages illustrations 27 cm.
Abstract
The applicability to municipal wastes of the recently discovered magnesium carbonate-lime water treatment process has been investigated. A sixteen-month laboratory study was conducted and was followed by an eight-month pilot plant study. Four wastewaters with COD values varying from 200 to 1,500 mg/l were examined. Bench-scale coagulation studies designed to compare the effect of added MgCO3 with treatment by lime only showed a 0%-30% greater reduction in effluent COD residuals. Color and turbidity reduction by the magnesium-plus-lime process averaged 50%-85% greater when compared to treatment by lime only. A series of 72-hour pilot plant runs was conducted with the magnesium precipitated increased after each three day period. Effluent characteristics improved as the amount of magnesium precipitated was increased. Influent and filter effluent samples were collected every four hours and analyzed for COD, TOC, total phosphorus, alkalinity, hardness, calcium, and magnesium. Values for BOD were determined from composited samples.
Notes
"Grant 12130 HRA; Program element 1BB036; Roap/ Task 21 AZV-21." "EPA/660-2-74-005." "June 1974." Includes bibliographical references (pages 109-112).