Main Title |
Environmental Factors in Design and Operation of Waste Water Sludge Drying Beds. |
Author |
Jennet, J. Charles ;
Harri, Daniel J. ;
|
CORP Author |
Missouri Water Resources Research Center, Rolla. |
Year Published |
1971 |
Report Number |
OWRR-A-042-MO; 01337,; A-042-MO(1) |
Stock Number |
PB-204 599 |
Additional Subjects |
( Sewage treatment ;
Sludge disposal) ;
( Sludge disposal ;
Dewatering) ;
( Activated sludge process ;
Sludge drying) ;
Anaerobic processes ;
Moisture content ;
Humidity ;
Evaporation ;
Waste disposal ;
Theses ;
Mathematical models ;
Solid waste disposal
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-204 599 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
108p |
Abstract |
The dewatering characteristics of anaerobically digested primary and activated sludge were investigated under eight selected combinations of laboratory controlled air temperature and relative humidity using three open, drained model beds, as well as a closed, drained and an open, nondrained bed. The evaporation rate from a free water surface was also determined. Moisture content, drainage, evaporative weight loss, and sludge surface recession were measured and recorded periodically throughout the two week period of each of the eight experiments. Relationships were shown to exist between sludge moisture content, evaporation rate from a free water surface, and the parameters T (the difference between dry and wet bulb temperature) and H (the difference between saturation and absolute humidity). It was found that moisture gradients developed within the dewatering sludge which generally increased with time and T. (Author) |
NTIS Title Notes |
Completion rept. 1 Jul 70-30 Jun 71. |
PUB Date Free Form |
Oct 71, |
Category Codes |
13B; 68D |
NTIS Prices |
PC A06/MF A01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
326523258 |
Origin |
NTIS |
Type |
CAT |