02737nam a2200421 4500 20260817161800.0 011298s1985 th r 0000|00eng d .b10058060 AIT Thesis no.EV-85-9 Illangovan, Patchamuthu Aerobic biological treatment by fluidized bed : an experimental approach Bangkok : Asian Institute of Technology, 1985 55 p. Thesis ; no. EV-85-9 A thesis submitted in partial fulfillment of requirements for the degree of Master of Engineering, School of Environment, Resources and Development Thesis (M.Eng.) - Asian Institute of Technology, 1985 An aerobic tapered fluidized bed reactor was measured in terms of organic removal efficiency and dissolved oxygen concentration maintained in the reactor. The uniqueness about this process is the combined activity of suspended and attached growth microorganisms in organic removal. Attached growth microorganism were predominant in the fludized sand media while suspended growth microorganisms were dominant in the portion above the expanded bed in the reactor. The study show moderate organic carbon removal efficiency (45-50%) at low concentration dissolved oxygen 9.9-10.2 mg/l and low detention time of 1.8-2.3 min. It can be deduced from the study that the organic carbon removal efficiency is dependent upon the influent dissolved oxygen concentration. Sewage Purification Biological treatment Fluidized reactors Nguyen, Cong Thanh, Chairperson Vigneswaran, Saravanamuthu, Co-Chairperson Samorn Muttamara, Examination Committee Norwegian Agency for Development (NORAD), Scholarship Donor Asian Institute of Technology. Thesis ; no. EV-85-9 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B20008 .b10058060 mnait x 240409 2 951012 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050003042701 CREATED : 1994-05-16 RECORD # : i10052471 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003042719 CREATED : 1994-05-16 RECORD # : i10052483 LPATRON : 1017798 LCHKIN : 2005-04-14 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 7 TOT RENEW : 6 Barcode : 30050120224380 CREATED : 2016-09-05 RECORD # : i12972617 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 2654 2654 0 0 0 0 MAIN MAIN mnait 2026-08-17 10.00 0 AIT Thesis no.EV-85-9 30050003042701 2026-08-17 16:18:00 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 10.00 0 AIT Thesis no.EV-85-9 30050003042719 2026-08-17 16:18:00 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.EV-85-9 30050120224380 2026-08-17 16:18:00 2026-08-17 40