| Main Title |
Improved liquid-solids separation by an aluminum compound in activated sludge treatment / |
| Author |
Lenhart, Charles F.,
|
| Other Authors |
|
| CORP Author |
Greene County Board of Commissioners, Ohio.;Municipal Environmental Research Lab., Cincinnati, Ohio. Wastewater Research Div.;Nalco Chemical Co., Chicago, Ill. |
| Publisher |
[Environmental Protection Agency], United States Government Printing Office., |
| Year Published |
1975 |
| Report Number |
EPA-600/2-75-039; EPA-17030-EBH |
| Stock Number |
PB-248 228 |
| OCLC Number |
02138899 |
| Subjects |
Sewage--Purification ;
Separation (Technology) ;
Sewage--Activated sludge process
|
| Additional Subjects |
Sewage treatment ;
Activated sludge process ;
Pilot plants ;
Sodium inorganic compounds ;
Aluminates ;
Precipitation(Chemistry) ;
Alums ;
Chemical removal(Sewage treatment) ;
Biochemical oxygen demand ;
Sludge digestion ;
Phosphorus ;
Cost estimates ;
Sodium aluminates
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600-2-75-039 |
c.1 |
Headquarters Library/Washington,DC |
08/16/2013 |
| ELBD ARCHIVE |
EPA 600-2-75-039 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD |
EPA 600-2-75-039 |
|
AWBERC Library/Cincinnati,OH |
11/20/1998 |
| ESAD |
EPA 600-2-75-039 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-248 228 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
viii, 60 pages : illustrations ; 27 cm. |
| Abstract |
This study demonstrates that feeding liquid alkaline alumina, identified as sodium aluminate, to a small to medium (2.5 million gal per day) activated sludge wastewater treatment plant is a practical method of gaining several operational benefits. Specific benefits were found in the areas of solids handling and ease of sludge volume index control. Additional benefit was noted in the concentration of aerobically digested solids, particularly in cold weather. Reduction of suspended solids carryout of secondary clarifiers resulted from the sodium aluminate feed, reducing the loading to the tertiary treatment unit. Phosphorus removal in amounts approaching 80% were achieved with feed rates of 10 mg/liter as Al to the aeration basins. The cost of alkaline alumina addition was 2.6 cents per 1000 gallons of raw wastewater flow. |
| Notes |
"Project no. 17030 EHB." Report prepared by Greene County, Ohio, and Nalco Chemical Company, Oak Brook, Illinois, for the Board of Greene County Commissioners, Greene County, Ohio. Municipal Environmental Research Laboratory, Office of Research and Development, Cincinnati, Ohio. Includes bibliographical references (page 59). For sale by the National Technical Information Service, (Price upon application). 4to. |
| Place Published |
Washington, DC |
| Supplementary Notes |
Prepared in cooperation with Nalco Chemical Co., Chicago, Ill. |
| Corporate Au Added Ent |
Municipal Environmental Research Laboratory,; Nalco Chemical Company,; Greene County (Ohio). Board of Commissioners,; United States. Environmental Protection Agency. Office of Research and Development, |
| Title Ser Add Ent |
Research reporting series. Environmental protection technology ; EPA-600/2-75-039. |
| PUB Date Free Form |
1975 |
| Series Title Traced |
Environmental protection technology series ; EPA-600/2-75-039 |
| Series Title Untraced |
Environmental protection technology series ; EPA-600/2-75-039 |
| NTIS Prices |
PC A04/MF A01 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20150605144636 |
| Language |
eng |
| SUDOCS Number |
EP 1.23/2:600/2-75-039 |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01581cam 2200385Ii 45020 |
