02568cas|a2200265 i 450000500170000000800410001703500150005810000200007324500840009326000520017730000100022949000270023950001020026650200570036852014700042565000360189565000470193170000320197870000430201070000420205370000480209571000340214381000590217785600660223620260818095111.0170399s1992    th  u m rtt   0|  a1eng d  a.b102287311 aTatang, Irianti10aEffect of suspended solids on anaerobic treatment on mungbean starch wastewater  aBangkok :bAsian Institute of Technology,c1992  a90 p.1 aThesis ;vno. EV-92-15  aA thesis submitted in partial fulfillment of the requirement for  the degree of Master of science  aThesis (M.Sc.) - Asian Institute of Technology, 1992  aLaboratory 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 origi nal 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 origi n al wastewater by centrifuging.  Although t here was no s ignificant effect of SS in the ef flu e 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. 0aStarch industryxWaste disposal 0aSewagexPurificationxBiological treatment1 aVerink, Johan,eChairperson1 aZhuang, Ya-Hui,eExamination committee1 aTanaka, Shuzo,eExamination committee1 aTentscher, Wolfgang,eExamination committee2 aUS-ASEAN,eScholarship donor 2 aAsian Institute of Technology.tThesis ;vno. EV-92-15  3Full-Textu http://203.159.5.9/ait-thesis/detail.php?q=B16649