| Main Title |
Chemical primary sludge thickening and dewatering / |
| Author |
Di Gregorio, David. ;
Ainsworth, J. Brian ;
Mounteer, Keith J.
|
| Other Authors |
|
| CORP Author |
Envirotech Corp., Salt Lake City, UT. Eimco Process Machinery Div.;Municipal Environmental Research Lab., Cincinnati, OH. |
| Publisher |
Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; Available to the public through the National Technical Information Service, |
| Year Published |
1979 |
| Report Number |
EPA-600/2-79-055; EPA-68-03-0404 |
| Stock Number |
PB80-108970 |
| OCLC Number |
06233230 |
| Subjects |
Sewage--Purification--Phosphate removal ;
Coagulation ;
Sewage sludge--Drying
|
| Additional Subjects |
Sludge disposal ;
Chemical removal(Sewage treatment) ;
Dewatering ;
Thickening ;
Phosphorus ;
Coagulants ;
Flotation ;
Gravity ;
Filtration ;
Centrifuging ;
Performance evaluation ;
Economic analysis ;
Pilot plants ;
Iron ;
Alum
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHAM |
TD769.7.D5 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
| EJBD |
EPA 600-2-79-055 |
|
Headquarters Library/Washington,DC |
03/31/2016 |
| ELBD ARCHIVE |
EPA 600-2-79-055 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD |
EPA 600-2-79-055 |
|
AWBERC Library/Cincinnati,OH |
05/14/2019 |
| ESAD |
EPA 600-2-79-055 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB80-108970 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
xxii, 266 pages : illustrations ; 28 cm. |
| Abstract |
This report presents the results of a ten month study of the thickening and dewatering characteristics of chemical-primary sludges. Alum-primary and ferric-primary sludges were produced in parallel trains of a pilot plant operated using a municipal wastewater. Each chemical treatment unit was operated under several coagulant doses during the four phases of this study resulting in the production of several chemical-primary sludges with distinct characteristics. Gravity thickening and dissolved air flotation thickening results for each chemical-primary sludge are presented. Gravity thickening was evaluated using continuous, pilot scale gravity thickeners; dissolved air flotation thickening evaluations were performed using batch, benchscale equipment. Sludge dewatering evaluations were performed for all chemical-primary sludges using a pilot scale bowl centrifuge, vacuum belt filter and filter press. The report presents correlations developed relating performance of each unit operation to specific characteristics identified for each chemical-primary sludge. An economic analysis of centrifugation and vacuum belt filtration of each chemical-primary sludge is presented. |
| Notes |
"Envirotech Corporation." "July 1979." Includes bibliographical references. "Contract no. 68-03-0404." |
