Main Title |
Optimal Procedures for the Processing of Waste Activated Sludge. |
Author |
Randal, Clifford W. ;
Parke, David G. ;
Rivera-Corder, Antonio ;
|
CORP Author |
Virginia Polytechnic Inst. and State Univ., Blacksburg. Water Resources Research Center. |
Year Published |
1973 |
Report Number |
VPI-WRRC-Bull-61; OWRR-A-035-VA; A-035-YA(9),; 13982 |
Stock Number |
PB-223 128 |
Additional Subjects |
( Sludge disposal ;
Dewatering) ;
( Sewage treatment ;
Sludge disposal) ;
( Activated sludge process ;
Sludge disposal) ;
Optimization ;
Anaerobic processes ;
Aerobic processes ;
Chlorination ;
Polymers ;
Process variables ;
Particle size ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-223 128 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
93p |
Abstract |
An extensive study of changes that occur in waste activated sludge when it is processed by commonly used handling procedures and the effect of these changes on subsequent dewatering of the waste sludge is described. The purpose of the study was to identify the types of conditions that make activated sludge more difficult to dewater and to formulate procedures that would optimize dewatering. The principal handling procedures studied were: anaerobic storage, chlorination, aerobic digestion, polymer conditioning, and combinations of these techniques. The effects of operational parameters on the results were also studied. These include solids concentration, temperature, mixing, dissolved oxygen concentration, aeration rate, and digester flow conditions. Dewatering changes were measured by vacuum filterability, specific resistance, and compressibility. Mechanisms of dewaterability change were elucidated. A procedure for measuring floc size was developed. (Modified author abstract) |
Supplementary Notes |
Prepared in cooperation with Arkansas Univ., Fayettesville. Dept. of Civil Engineering and Environmental Engineering Bureau, San Juan, Puerto Rico. See also PB-219 389. |
PUB Date Free Form |
Aug 73, |
Category Codes |
13B; 68D |
NTIS Prices |
PC A05/MF A01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
326566201 |
Origin |
NTIS |
Type |
CAT |