| Main Title |
Optimization and design of an oil activated sludge concentration process / |
| Author |
Rosenblatt, T. M.,
|
| Other Authors |
|
| CORP Author |
Esso Research and Engineering Co., Linden, N.J. |
| Publisher |
Office of Research and Development, U.S. Environmental Protection Agency, For sale by the Supt. of Docs., U.S. G.P.O. |
| Year Published |
1974 |
| Report Number |
EPA-670/2-74-004; EPA-68-01-0095; EPA-17070-HDA; W74-10192 |
| Stock Number |
PB-234 173 |
| OCLC Number |
01128471 |
| Subjects |
Sewage--Purification--Activated sludge process
|
| Additional Subjects |
Sludge disposal ;
Sewage treatment ;
Solid waste disposal ;
Dewatering ;
Incinerators ;
Combustion ;
Drying ;
Pilot plants ;
Cost estimates ;
Thickening
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 670-2-74-004 |
c.1 |
Headquarters Library/Washington,DC |
05/17/2013 |
| ELBD ARCHIVE |
EPA 670-2-74-004 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 670-2-74-004 |
repository copy |
AWBERC Library/Cincinnati,OH |
08/19/2019 |
| NTIS |
PB-234 173 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
1 volume (various pagings) : illustrations ; 27 cm. |
| Abstract |
Laboratory and pilot plant studies are described for a new Esso-Carver Greenfield process for the disposal of sewage sludge. An oil-assisted gravity separation of the majority of the water while heating is followed by multiple effect evaporation to dryness in an oil slurry, and incineration of the dry solids. Agreement between laboratory and pilot plant results was good, indicating no scale-up problems. In the gravity separation, secondary sludges are concentrated from about 0.5% up to 5-10% solids. Solids capture of 98% or more is achieved by high shear oil-sludge contacting. Temperature dependent losses of solubilized organic carbon up to about 25% of the organic content of the feed are observed in the separated water from the oil concentration, and in the distillate from the evaporators. The process economics show an advantage of $13-32 a ton compared to the best known commercial technology: total costs are estimated at $21-39/ton of dry solids for a 189 ton/day plant processing a 50/50 mixture of primary + activated sludges to ash. A lower temperature gravity separation step could greatly reduce the economic penalty for a 25% recycle of solubilized secondary sludge. |
| Notes |
"EPA-670/2-74-004." "February 1974." Report prepared by Esso Research & Engineering Company, Linden, New Jersey. |
| Place Published |
Washington, D.C. |
| Availability Notes |
Paper copy available from GPO $1.40 as stock no. EP1.23:670/2-74-004. |
| 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-670/2-74-004. |
| PUB Date Free Form |
1974 |
| Series Title Traced |
Environmental protection technology series |
| Series Title Untraced |
Environmental protection technology series ; EPA-670/2-74-004 |
| NTIS Prices |
PC-GPO/MF A01-NTIS |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| Merged OCLC records |
249646642; 1035060157; 1035361975 |
| OCLC Time Stamp |
20190802014100 |
| Language |
eng |
| SUDOCS Number |
EP 1.23/2:670/2-74-004 |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
02213cam 2200433Ia 45010 |
