| Author | Tseng, Kuang-chiu |
| Call Number | AIT Thesis no. 227 |
| Subject(s) | Sewage sludge--Drying
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering at the Asian Institute of Technology, Bangkok, Thailand |
| Publisher | Asian Institute of Technology |
| Abstract | Dewatering sludge on sand drying beds has been considered by previous workers to be suitable for sludge treatment in Southeast Asia. In this research, an attempt was made to evaluate the principal factors affecting sludge dewatering on sand drying beds in the tropics.
Weighable drying beds four ft2 in area were used of follow the removal of water from sludges by drainage and evaporation .
The solids content of sludge cake when removable from the beds was found to be close to the liquid limit of the raw sludge. The time required to dry sludge to a lift able condition varied with sludge dosing depth, sludge specific resistance, raw sludge and lift able-cake total solids contents, and the evaporation rate from sludge. The bed loading for dewatering of sludge to a lift able condition was dependent upon sludge specific resistance, evaporation from sludge, and total solids of raw sludge. Dosing depth did not
directly affect bed loading except under heavy rainfall. An
empirical equation was developed illustrating the relationship of these factors |
| Year | 1968 |
| Type | Thesis |
| School | Student Research Before 1980 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Pescod, M.B. |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 1968 |
