| Main Title |
Digital computer control of advanced waste treatment systems / |
| Author |
Yarrington, Robert ;
Schuk, Walter W. ;
Bishop, Dolloff F. ;
Bowers, James E. ;
Fine., Elliot D. ;
|
| Other Authors |
|
| CORP Author |
District of Columbia Dept. of Environmental Services, Washington. ;IBM Corp., Gaithersburg, Md.;Municipal Environmental Research Lab., Cincinnati, Ohio. |
| Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory, |
| Year Published |
1977 |
| Report Number |
EPA/600/2-77/211; EPA-68-01-0162 |
| Stock Number |
PB-274 859 |
| OCLC Number |
31058031 |
| Subjects |
Sewage disposal plants ;
Sewage--Purification
|
| Additional Subjects |
Water pollution control ;
Automatic control ;
Activated sludge treatment ;
Process control ;
Pilot plants ;
Digital computers ;
pH ;
Aeration ;
Nitrification ;
Process control ;
Design criteria ;
Performance evaluation ;
Dissolved gases ;
Oxygen ;
Concentration(Composition) ;
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD ARCHIVE |
EPA 600-2-77-211 |
|
Headquarters Library/Washington,DC |
10/25/2011 |
| EJBD |
EPA 600-2-77-211 |
c.1 |
Headquarters Library/Washington,DC |
03/26/2014 |
| ELBD |
EPA 600-2-77-211 |
|
AWBERC Library/Cincinnati,OH |
05/17/2022 |
| ESAD |
EPA 600-2-77-211 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-274 859 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
viii, 41 pages : illustrations ; 28 cm |
| Abstract |
The objectives of the study were to develop and demonstrate automatic control strategies using a digital computer on advanced wastewater treatment systems. Two basic pilot treatment systems were automated, physical-chemical treatment and the three-stage activated sludge system. The digital automation involved control of lime feeding, pH control with CO2, FeCl3, sludge wasting, and breakpoint chlorination in the physical-chemical system. In the biological system, the automation involved FeCl3 dosage and D.O. control in aeration, pH control in nitrification and CH3OH and alum dosage controls in denitrification. The digital control approaches satisfactorily operated the pilot plants. |
| Notes |
"November 1977." "Contract number 68-01-0162." "This study was conducted in cooperation with District of Columbia Department of Environmental Services and International Business Machines Corporation." |
