Main Title |
Computer management of a combined sewer system / |
Author |
Leiser, Curtis P.,
|
CORP Author |
Seattle Metropolitan Municipality, Wash.;Environmental Protection Agency, Cincinnati, Ohio.;Office of Water Resources Research, Washington, D.C. |
Publisher |
National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency, For sale by the Supt. of Docs., U.S. Govt. Print. Off. |
Year Published |
1974 |
Report Number |
EPA-670/2-74-022; EPA-11022-ELK; EPA-ROAP-21ASZ-37; W74-12003 |
Stock Number |
PB-235 717 |
OCLC Number |
01227520 |
Subjects |
Seattle Metropolitan Area (Wash) ;
Sewerage--Washington (State)--Seattle ;
Combined sewers--Data processing ;
Seattle Metropolitan Area (Wash)--Sewerage ;
Electronic data processing--Combined sewers
|
Additional Subjects |
Combined sewers ;
Control equipment ;
Surface water runoff ;
Water pollution ;
Computers ;
Remote control ;
Overflows ;
Operating costs ;
Telemetry ;
Sewage treatment ;
Flow control ;
Systems management ;
Water quality ;
Benefit cost analysis ;
Washington(State) ;
Storm water runoff
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 670-2-74-022 |
|
Headquarters Library/Washington,DC |
12/30/2014 |
ELBD ARCHIVE |
EPA 670-2-74-022 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD |
EPA 670-2-74-022 |
|
AWBERC Library/Cincinnati,OH |
01/02/1998 |
NTIS |
PB-235 717 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
xii, 474 pages illustrations 27 cm. |
Abstract |
At the conclusion of a ten-year construction program which affected much of Seattle's combined sewer system, a computer-controlled 'total systems management' complex was proposed, funded and constructed. Computer augmented treatment and disposal (CATAD) takes advantage of storage in the sewers to limit overflows, and selects overflow points based on water quality data. Since the control system began operating in 1971, receiving water quality, especially dissolved oxygen and coliform levels, has shown significant improvement; overflow volume has decreased by 50 to 60% during supervisory control and in excess of 90% during three months of limited automatic control. Eight pollution loading parameters were measured and found to be 68% less than before advanced control techniques. Capital costs totaled $2.6 million for the control system. (Modified author abstract) |
Notes |
"Project no.11022 ELK; Program element no.1BB034." For Storm and Combined Sewer Section (Edison, N.J.)--Advanced Waste Treatment Research Laboratory, Cincinnati, Ohio. "Supplement to "Maximizing storage in combined sewer systems, "GPO no. EPZ. 10:11022-KLK-12/71;NTIS no. PB-209 861." |