| Main Title |
Full-scale demonstration of industrial wastewater treatment utilizing Du Pont's PACT process (November, 1976, through December, 1979) / |
| Author |
Heath, Harry W.
|
| CORP Author |
Du Pont de Nemours (E.I.) and Co., Deepwater, NJ. Chambers Works.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
| Publisher |
U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Laboratory ; National Technical Information Service, |
| Year Published |
1981 |
| Report Number |
EPA 600/2-81/159; EPA-S-804943 |
| Stock Number |
PB81-248122 |
| OCLC Number |
09572971 |
| Subjects |
Sewage--Purification--Biological treatment ;
Sewage--Purification--Activated sludge process
|
| Additional Subjects |
Water pollution control ;
Chemical industry ;
Industrial waste treatment ;
Activated carbon treatment ;
Operating costs ;
Cost analysis ;
Performance evaluation ;
Activated sludge treatment ;
Du Pont's PACT process
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EMBD |
EPA/600/2-81/159 |
|
NRMRL/GWERD Library/Ada,OK |
02/03/1995 |
| NTIS |
PB81-248122 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
viii, 155 pages : illustrations ; 28 cm |
| Abstract |
Operating and cost data on startup and the initial 30 months of operation of a 150,000 cu m/day (40-MGD) industrial wastewater treatment plant using Du Pont's PACT process are reported. The process effectively provides secondary/tertiary treatment by adding powdered activated carbon to the aerator in an activated sludge process. Removals of BOD5 and color were 96% and 68%, respectively, exceeding expectations. Removal of Dissolved Organic Carbon (DOC) was 82%, approximately equal design. Removals were consistent even though the waste contained many relatively toxic, non-biodegradable organics and varied drastically in composition. A synergistic enhancement of biological activity in the presence of activated carbon was observed. Operation at over 25 days sludge age reduced the required carbon dose from more than 170 mg/liter to 120 mg/liter. Activated carbon was regenerated in a multiple-hearth furnace. At 80% yield with recovery of 63% of virgin carbon properties, production rate and quality recovery were below expectations. Performance was hurt by underdesigned filtration and solids conveying equipment which limited throughput and in-time. Excluding depreciation, operating costs for secondary/tertiary treatment alone have averaged $0.16/cu m ($0.61/1,000 gal.). Including depreciation, costs have averaged $0.33/cu m ($1.27/1,000 gal.). |
| Notes |
Grant no. S-804943. "PB81-248122." "September 1981." "EPA-600/2-81-159." Includes bibliographical references. |
| Place Published |
Ada, Ok. : |
| Supplementary Notes |
Color illustrations reproduced in black and white. |
| Corporate Au Added Ent |
Robert S. Kerr Environmental Research Laboratory. ; Robert S. Kerr Environmental Research Laboratory. |
| PUB Date Free Form |
1981. |
| NTIS Prices |
PC A08/MF A01 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
19950203143338 |
| Language |
ENG |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01052nam 2200253Ia 45020 |
