000			03141cas|a2200397 i 4500
005			20260818180016.0
008			150399s1990 th uzm rtt 00| a1eng d
035			_a.b10557106
099		9	_aAIT Thesis no. EV-90-16
100	1		_aGupta, Hani
245	1	0	_aRemoval of phenol from wastewater using an immobilized cell sequencing batch reactor
260			_aBangkok : _bAsian Institute of Technology, _c1990
300			_a115 p.
490	1		_aThesis ; _vno. EV-90-16
500			_aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development
502			_aThesis (M.Sc.) - Asian Institute of Technology, 1990
520			_aThe 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).
650		0	_aSewage _xPurification _xPhenol removal
700	1		_aHarada, Hideki, _eChairperson
700	0		_aChongrak Polprasert, _eExamination Committee
700	1		_aTran, Francis T., _eExamination committee
810	2		_aAsian Institute of Technology. _tThesis ; _vno. EV-90-16
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B18369
907			_a.b10557106 _bmnait _cx
902			_a240409
998			_b2 _c951012 _dm _ea _fx _g0
945			_lmnait
945			_lmnait
945			_lmnarc
942			_c20
942			_c40
909			_aBarcode : 30050003045597 _bCREATED : 1994-05-18 _cRECORD # : i10701825 _dLPATRON : 1021438 _eLCHKIN : 2009-07-16 _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 1 _jTOT RENEW : 1
909			_aBarcode : 30050120806665 _bCREATED : 1994-05-18 _cRECORD # : i10701837 _dLPATRON : 1015401 _eLCHKIN : 2004-06-25 _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 3 _jTOT RENEW : 0
909			_aBarcode : 30050120222905 _bCREATED : 2016-11-05 _cRECORD # : i12974134 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
999			_c99491 _d99491