000			03473cas|a2200409 i 4500
005			20260817173143.0
008			050499s1994 th uzm rtt 00| a1eng d
035			_a.b10147081
099		9	_aAIT Thesis no. EV-94-32
100	1		_aWang, Ling
245	1	0	_aColor removal from dyeing wastewater by electroflotation technique
260			_aBangkok : _bAsian Institute of Technology, _c1994
300			_a96 leaves
490	1		_aThesis ; _vno. EV-94-32
500			_aA Thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Environment, Resources & Development
502			_aThesis (M.Eng.) - Asian Institute of Technology, 1994
520			_aA reactor is designed to accomplish a process combining electrolysis, coagulation and flotation without adding any flocculent or gases. This process is characterized by utilizing the chloride to generate sodium hypochlorite which improves color removal efficiency from dye wastewater. Bipolar plate electrodes are used in the reactor to achieve better mass transfer and hence better color removal rate. Number of electrodes, current density, initial dye concentration, conductivity, effects of chloride addition and different electrode material (steel and aluminum plates) are investigated in batch mode. Four types of dye wastewater, identified as reactive dye, acid dye, disperse dye and a mixture of disperse and vat dye wastewater are studied. Industrial dye wastewater is also treated in a continuous mode. Color removal rate of the reactive dye, disperse dye and the mixture of disperse and vat dye wastewater surpasses 92 % while color removal rate of acid dye wastewater is 85 % . These results are obtained without any pretreatment being carried out. Color of the industrial effluent is brought down from the range of 7000 ADMI to 300 ADMI at a power consumption of around 7.5 KWh/m3{u2022} Color and COD removal rate of 96% and 85% respectively is achieved. The suspended solid in the effluent is around 100 mg/L. The results obtained from experiments show that if the best combination of current density and flow rate is used, the electroflotation reactor can be used to treat industrial dye wastewater effectively at a relatively low consumption.
650		0	_aSewage _xPurification _xColor removal
700	0		_aSamorn Muttamara, _eChairperson
700	1		_aVisvanathan, C., _eCo-Chairperson
700	0		_aSompol Boonthanon, _eExamination Committee
710	2		_aGovernment of Denmark, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. EV-94-32
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B15822
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909			_aBarcode : 30050001131456 _bCREATED : 1994-05-16 _cRECORD # : i10172439 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
909			_aBarcode : 30050003048062 _bCREATED : 1994-05-16 _cRECORD # : i10172440 _dLPATRON : 1011379 _eLCHKIN : 2000-04-16 _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 2 _jTOT RENEW : 0
909			_aBarcode : 30050160055272 _bCREATED : 2016-11-05 _cRECORD # : i1297562x _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
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