03141cas|a2200397 i 4500 20260818180016.0 150399s1990 th uzm rtt 00| a1eng d .b10557106 AIT Thesis no. EV-90-16 Gupta, Hani Removal of phenol from wastewater using an immobilized cell sequencing batch reactor Bangkok : Asian Institute of Technology, 1990 115 p. Thesis ; no. EV-90-16 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development Thesis (M.Sc.) - Asian Institute of Technology, 1990 The potential of a toxic organic , phenol, removal in an immobilized ceil sequencing batch reactor was studied with three laboratory scale reactors using synthetic wastewater. Three different operating aeration times with varying aerobic/anaerobic phases were applied in order to find the potential of the immobilized cells to degrade phenol. The results obtained in this research revealed that an average of 57% phenol and 35% COD removal efficiency was obtained at an organic loading of 15.31 kg/m3-day. For t he second organic loading rate of 5.076 kg/m3-day tested, more than 95% phenol and COD removals were obtained within four hours of aeration out of 8 hours of operation time. Batch studies conducted along t h e study revealed that maximum degradation of organics took place during the initial stages of aeration and under saturated conditions of dissolved oxygen. High levels of organic degradation was not observed during the anaerobic stages and the aeration times used in this research were not sufficient for nitrification. A kinetic study of immobilized cells indicated that very high levels of dissolved oxygen can inhibit the immobilized cells leading to low oxygen uptake r ate and consequently less activity (less degradation). Sewage Purification Phenol removal Harada, Hideki, Chairperson Chongrak Polprasert, Examination Committee Tran, Francis T., Examination committee Asian Institute of Technology. Thesis ; no. EV-90-16 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B18369 .b10557106 mnait x 240409 2 951012 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050003045597 CREATED : 1994-05-18 RECORD # : i10701825 LPATRON : 1021438 LCHKIN : 2009-07-16 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 1 Barcode : 30050120806665 CREATED : 1994-05-18 RECORD # : i10701837 LPATRON : 1015401 LCHKIN : 2004-06-25 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 3 TOT RENEW : 0 Barcode : 30050120222905 CREATED : 2016-11-05 RECORD # : i12974134 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 99491 99491 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. EV-90-16 30050003045597 2026-08-18 18:00:16 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. EV-90-16 30050120806665 2026-08-18 18:00:16 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. EV-90-16 30050120222905 2026-08-18 18:00:16 2026-08-18 40