| Main Title |
Extended-Aeration Plants and Intermittent Watercourses. |
| Author |
Morri, Grover L. ;
Van Den Ber, Lowell ;
Cul, Gordon L. ;
Geckle, Jack R. ;
Porge, Ralph ;
|
| CORP Author |
Robert A. Taft Sanitary Engineering Center, Cincinnati, Ohio. |
| Year Published |
1963 |
| Report Number |
PHS-Pub-999-WP-8; |
| Stock Number |
PB-168 979 |
| Additional Subjects |
( Water pollution ;
Public health) ;
( Sewage ;
Water pollution) ;
( Hydrology ;
Water pollution) ;
Degradation ;
Solids ;
Wastes(Sanitary engineering) ;
Algae ;
Aquatic animals ;
Inland waterways ;
Tables ;
Costs ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-168 979 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
50p |
| Abstract |
Two basic extended-aeration plants that discharge effluents to intermittent watercourses were studied during various seasons of the year. Except for periods of slug discharges, the plants produced effluents with a BOD of less than 35 mg/1 and suspended solids less than 30 mg/1. Plant efficiency was directly related to the amount of solids lost as a result of fluctuations in raw waste flow or as a result of denitrification and rising of solids in the sedimentation basin and consequent overflow. With the addition of sludge-wasting facilities of effluent-polishing units, these plants would be capable of efficient continuous operation for long periods. Periodic heavy discharges of suspended solids formed sludge deposits in the two streams receiving effluent from the plants. Counts of benthic forms above and below the plant outfalls and at sampling points downstream clearly showed the effect of these deposits. Algal growths were profuse in unshaded portions of the streams, indicating high nutrient levels. (Author) |
