| Main Title |
Effect of Aeration Basin Configuration on Bulking at Low Organic Loading. |
| Author |
Lee, Sang-Eun;
Koopman, Ben L.;
Jenkins, David;
|
| CORP Author |
California Univ., Richmond. Sanitary Engineering and Environmental Health Research Lab.;Municipal Environmental Research Lab., Cincinnati, OH. |
| Year Published |
1982 |
| Report Number |
EPA-R-806107; EPA-600/2-82-081; |
| Stock Number |
PB82-234287 |
| Subjects |
Sewage treatment;
Activated sludge treatment;
Bulking;
Aeration;
Performance evaluation;
Graphs(Charts);
|
| Holdings |
| Library |
|
Call Number |
Additional Info |
Location |
Date Modified |
| NTIS |
|
PB82-234287 |
Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. |
NTIS |
06/23/1988 |
|
| Collation |
37p |
| Abstract |
Continuous-flow laboratory-scale activated sludge units were operated on domestic sewage at low F/M. In CSTR units at the F/M range of 0.05-0.25 g COD removed/g TMLVSS, day, bulking did not occur with a weak (BOD(5) = 139 mg/L) sewage feed and TMLSS = 1.5 g/L. Supplementation of sewage by blending with raw sludge produced a stronger sewage (BOD(5) = 315 mg/L) which caused TMLSS to increase to 3.5 g/L. Bulking occurred in CSTR, 2, 4, 8, and 16 compartment units. An aeration basin with initial compartment 1/32nd of aeration basin volume prevented but did not cure bulking. An aeration basin with initial compartments 1/74th of aeration basin volume, prevented and cured bulking. Anoxia in an aeration basin with two initial compartments each 1/64th of the total aeration basin volume did not aid in curing bulking. The SVI of sludges at low F/M (0.3-0.35 g COD removed/g TMLVSS, day) and high TMLSS (3.5 g/L) is related to conditions in the initial compartment rather than those in the remainder of the aeration basin. Initial compartment soluble COD, first-compartment F/M, and initial compartment size are important; floc loading, dispersion number and total number of aeration basin compartments are not important. |
| NTIS Title Notes |
Final rept.. |
| PUB Date Free Form |
Jul 82 |
| Category Codes |
13B; 68D |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/14 |
| Document Type |
NT |
| Control Number |
323819784 |
| Cataloging Source |
NTIS/MT |
| Origin |
NTIS |
| Type |
CAT |
![[logo] US EPA](http://www.epa.gov/epafiles/images/logo_epaseal.gif){kind=logo}