| Author | Lin, Chen-yeh |
| Call Number | AIT Thesis no. 989 |
| Subject(s) | Sewage--Purification--Activated sludge process
|
| Note | A Thesis submitted in partial fulfillment of the requirements for the degree of Master of Science of the Asian Institute of
Technology, Bangkok, Thailand. |
| Publisher | Asian Institute of Technology |
| Abstract | The purpose of this study was to gain a more complete understanding of the effect of agitation and oxygen tension on the growth of microorganisms and substrate utilization in the continuous-flow heterogenous-population pure-oxygen activated sludge system. In this study, glucose was used as the growth limiting substrate
(carbon source). Eight runs were carried out at velocity gradients
ranging from 340 to 1484 sec-1, detention time of 8 hours (D = 0.125 hr-1 ), constant temperature of 28°C, and pure oxygen flow rates of 0.2 l/min
and 0.01 l/min per 6 1 of mixed liquor suspended solids. It was found that high mixing velocity gradient increased the dissolved oxygen concentration in the medium, the COD removal efficiency, the protein content of the cell, the oxygen uptake rate of the microorganisms and the overall substrate removal rate and at the same time decreased
the cell yield value and the carbohydrate content of the cell.
High oxygen tension decreased the oxygen uptake rate and increased the cell yield value while the COD removal efficiency was found to be independent of oxygen tension. |
| Year | 1976 |
| Type | Thesis |
| School | Student Research Before 1980 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Yang, Yi Ping
|
| Examination Committee(s) | Pescod, M.B. ;Nguyen, Cong Thanh
|
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1976 |