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008 170399s1992 th u m rtt 0| a1eng d
035 _a.b10228731
099 9 _aAIT Thesis no.EV-92-15
100 1 _aTatang, Irianti
245 1 0 _aEffect of suspended solids on anaerobic treatment on mungbean starch wastewater
260 _aBangkok :
_bAsian Institute of Technology,
_c1992
300 _a90 p.
490 1 _aThesis ;
_vno. EV-92-15
500 _aA thesis submitted in partial fulfillment of the requirement for the degree of Master of science
502 _aThesis (M.Sc.) - Asian Institute of Technology, 1992
520 _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.
650 0 _aStarch industry
_xWaste disposal
650 0 _aSewage
_xPurification
_xBiological treatment
700 1 _aVerink, Johan,
_eChairperson
700 1 _aZhuang, Ya-Hui,
_eExamination committee
700 1 _aTanaka, Shuzo,
_eExamination committee
700 1 _aTentscher, Wolfgang,
_eExamination committee
710 2 _aUS-ASEAN,
_eScholarship donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. EV-92-15
856 _3Full-Text
_u http://203.159.5.9/ait-thesis/detail.php?q=B16649
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