| Author | Tatang, Irianti |
| Call Number | AIT Thesis no.EV-92-15 |
| Subject(s) | Starch industry--Waste disposal
Sewage--Purification--Biological treatment
|
| Note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of science |
| Publisher | Asian Institute of Technology |
| Abstract | Laboratory scal e experiments were carried out to study the
feasibility of employing UASB reactors to treat mungbean starch
wastewater. Four 2.9 1 (in effective volume) UASB reactors, each
with a 60 mm inner diameter and 1 m h e ight, were used in this
study which was conducted in a room where the temperature was
controlled at about 31°C . Four reactors were started with original wastewater from mungbean starch and were studied for possible
effec t of SS on anaerobic treatment. Different con centration of
Suspended solids (O; 0.5; 1 . 0; 1.5 g SS/l) were added to four
reactors. Suspended solids solution was extracted from the origin al wastewater by centrifuging.
Although t here was no s ignificant effect of SS in the ef flue nt CODr of the reactors and the specific activity of sludge, it
s howed a n effect of SS in wastewater on the daily gas production.
During period- 1, the organic loading was increased to 5.0 kg
COD/(m3 .d ) within 50 days after start- up. The HRT was reduced
from an initi a l value of 12 days to 0 . 7 days. However, in
period- 2, the start-up was done at an organic loading of 0.3 kg
COD/(m3 .d) corresponding to a HRT of 7 days. The organic loading
was increased to 3 kg COD/(m3 . d) within about 50 days. The HRT
was decreased to 0.75 days within this period.
The experimental results obtained indicate a good technical
feasibility of employing anaerobic reactors to treat mungb ean
starch wastewater. |
| Year | 1992 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. EV-92-15 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Verink, Johan |
| Examination Committee(s) | Zhuang, Ya-Hui;Tanaka, Shuzo;Tentscher, Wolfgang |
| Scholarship Donor(s) | US -ASEAN |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1992 |
