| Main Title |
Evaluation of polymeric clarification of meat-packing and domestic wastewaters / |
| Author |
Larson, Keith D., ;
Maulwurf., Douglas A.
|
| Other Authors |
|
| CORP Author |
Metropolitan Sewer Board, St. Paul, Minn.;Environmental Protection Agency, Washington, D.C.;Office of Water Resources Research, Washington, D.C. |
| Publisher |
Office of Research and Development, U.S. Environmental Protection Agency, For sale by the Superintendent of Documents, U.S. Government Printing Office |
| Year Published |
1974 |
| Report Number |
EPA-660/2-74-020; EPA-12130-EKK; W74-12210 |
| Stock Number |
PB-235 900 |
| OCLC Number |
01117024 |
| Subjects |
Animal waste ;
Meat industry and trade--Waste disposal ;
Sewage disposal plants ;
Sewage--Purification ;
sewage treatment plants
|
| Additional Subjects |
Clarification ;
Sewage treatment ;
Industrial waste treatment ;
Water pollution control ;
Polymers ;
Iron chlorides ;
Polyelectrolytes ;
Settling ;
Suspended sediments ;
Flocculating ;
Biochemical oxygen demand ;
Cost estimates ;
Meat packing industry
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 660-2-74-020 |
|
Headquarters Library/Washington,DC |
01/07/2015 |
| ELBD ARCHIVE |
EPA 660-2-74-020 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD |
EPA 660-2-74-020 |
|
AWBERC Library/Cincinnati,OH |
01/27/2022 |
| ERAD |
EPA 660/2-74-020 |
|
Region 9 Library/San Francisco,CA |
03/18/2013 |
| NTIS |
PB-235 900 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
xi, 197 pages : illustrations ; 27 cm |
| Abstract |
Laboratory tests were conducted to determine which system of chemicals would be most effective on combined packinghouse and domestic waste. A dual system of chemicals was found which was effective in the treatment of this combined waste. This was a combination of ferric chloride and an anionic polyelectrolyte. This system was effective in forming a floc which would settle out under the dynamic conditions of the overloaded primary sedimentation tank. Treatment with this system could effectively reduce suspended solids in the effluent of the primary sedimentation tank over what could be achieved without the use of this dual system. This was demonstrated by running: (1) a parallel system of identical tests and control tanks and, (2) full plant scale investigation for both test and control periods, kept as identical as possible. When full plant scale tests were run, laboratory data were collected from various sampling points throughout the plant during the test and control periods. A significant reduction of BOD and suspended solids was obtained in the primary sedimentation tanks and a change in efficiency was not observed on the trickling filters resulting in an overall reduction in these parameters in the effluent from the secondary sedimentation tank. The cost of chemically treating the combined 10 mgd of wastewater would be approximately $45 per million gallons and would be less for strictly domestic wastes. |
| Notes |
Report prepared by Metropolitan Sewer Board, South St. Paul, Minnesota. "Project 12130 EKK; Program Element 1BB037." Includes bibliographical references. |
| Place Published |
Washington, |
| Availability Notes |
Paper copy available from GPO. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Research and Development. |
| Title Ser Add Ent |
Research reporting series. Environmental protection technology ; EPA-660/2-74-020. |
| PUB Date Free Form |
1974 |
| Series Title Traced |
Environmental protection technology series, EPA-660/2-74-020 |
| Series Title Untraced |
Environmental protection technology series, EPA-660/2-74-020 |
| NTIS Prices |
PC-GPO/MF A01 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| Merged OCLC records |
641499608 |
| OCLC Time Stamp |
20220120213021 |
| Language |
eng |
| SUDOCS Number |
EP 1.23/2:660/2-74-020 |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
02183cam 2200505I 45010 |
