000			03137cam a2200325 a 4500
003			EG-GiCUC
008			191001s2018 ua dho f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.12.11.M.Sc.2018.Ah.D
100	0		_aAhmed Hamdy Saad Eldin Sadek
245	1	0	_aDevelopment of decentralized systems for purpose of reuse of the treated water in a safe and proper manner using nanotechnology / _cAhmed Hamdy Saad Eldin Sadek ; Supervised Amin Mahmoud Mohammed Baraka , Maha Mostafa Elshafei , Mohammed Mahmoud Hefny
246	1	5	_aتطوير أنظمة المعالجة اللامركزية بغرض إعادة إستخدام المياه المعالجة بطريقة آمنة في الأغراض الملائمة باستخدام تقنية النانو
260			_aCairo : _bAhmed Hamdy Saad Eldin Sadek , _c2018
300			_a222 P. : _bcharts , facsimiles , photographs ; _c25cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physical Chemistry
520			_aNano-scale zero valent iron (nZVI) was synthesized in an ethanol media by reduction of ferric iron using sodium borohydride as a reducing agent under atmospheric conditions. The synthesized iron nanoparticles are mainly in zero valent oxidation state and remain without significant oxidation for weeks. A methodical characterization of nZVI was carried out using XRD, SEM-EDS, TEM, UV, FT-IR, XRF, TGA, and DLS studies. The acquired iron nanoparticles consist of a zero violent core embracing a rest oxide shell. The iron nanoparticles diameter was predominantly in the range of 10.0 - 100 nm. In the present study methylene blue (MB) dye and copper (II) ion removal efficiencies of laboratory synthesized nZVI particles in relation to the effect of nZVI dosages, pH, dye and Cu (II) ion initial concentrations, agitation speed, contact time and temperature, effect of salts and detergents on MB removal efficiency were determined at bench scale. In the MB case, increasing nZVI doses and temperature enhanced the decolorization of the MB by 95.81, and 91.66 %, respectively; increasing the agitation speed, contact time, and the presence of salts increased MB removal efficiency to {u2248} 100.0 %. The degradation in color decreased from 91.66 % to 72.00 % at 10.0 min with increasing concentration of dye from 10.0 mg/L to 70.0 mg/L, respectively, and to 66.87 and 36.62 % in the presence of Ariel® and Vanish® commercial detergents, respectively. In the case of copper ion, increasing nZVI doses, contact time, agitation speed, and temperature leads to improvement of Cu (II) removal efficiency up to 99.94, {u2248} 100.0, 99.83, and 99.92 %, respectively
530			_aIssued also as CD
653		4	_aCharacterization
653		4	_aSynthesis
653		4	_aTextile wastewater
700	0		_aAmin Mahmoud Mohammed Baraka , _eSupervisor
700	0		_aMaha Mostafa Elshafei , _eSupervisor
700	0		_aMohammed Mahmoud Hefny , _eSupervisor
905			_aAsmaa _eCataloger
905			_aNazla _eRevisor
942			_2ddc _cTH
999			_c74264 _d74264