| Author | Lee, Keng-pang |
| Call Number | AIT Thesis no. EV-87-22 |
| Subject(s) | Sewage--Purification--Biological treatment
|
| Note |
A thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | This study was aimed to compare the operation of UASB
(Upflow An aerobic Sludge BlanKet) reactor having incline d tube
settlers (ITS) with that of conventiona1- OSAB reactor.
UASB reactors without and with ITS were operated at
different HRT of 4 h to 48 h. using brewery· wastewater a s feed
substrate . Investigation on gas production rate , methane
content, COD and solids removal efficiencies were made.
Over a wide range of COD loading rates tried in this study,
it was determined that organic loadings up to 10 kg COD/ m3-d
could be handled with high efficiency . COD removal was more than
95 percent, and methane production was more than 150 l /Kg COD
added when t he hydraulic retention time was 12 h. Shorter
detention time, that is, higher organic loading rate hampered the
performance o f the reactors , in terms of COD removal and a mount
of gas produced per kg of COD added.
It was found that inclined tub setter provided better gas
production and solids removal efficiency and more methane
content. Especially, higher solids removal was observed during
low hydraulic retention period. |
| Year | 1987 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Environmental Engineering (EV) |
| Chairperson(s) | Shin, Hang-Sik |
| Examination Committee(s) | Hanaki, K. ;Vigneswaran, Saravanamuthu
|
| Scholarship Donor(s) | Chinese Petroleum Corporation,
Republic of China |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology,1987 |