پديد آورنده :
حيدرزاده، شهريار
عنوان :
ارزيابي پتانسيل حذف فلزات سنگين از پسابهاي معدني با استفاده از نانو ذرات مگهميتي
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
اكتشاف معدن
محل تحصيل :
اصفهان:دانشگاه صنعتي اصفهان، دانشكده معدن
صفحه شمار :
پانزده،134ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
علي احمدي عامله، احمدرضا مختاري
استاد مشاور :
هوشنگ اسدي هاروني، اسماعيل دره زرشكي
توصيفگر ها :
طراحي آزمايش , ايزوترم , سينتيك
تاريخ نمايه سازي :
4/8/92
استاد داور :
حميد زيلوئي، مهدي نصيري
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Abstract Fe2O3 nanoparticles which synthesized by a novel method were purchased and the properties of this magnetic nanoadsorbent were characterized by X ray powder diffraction XRD scanning electron microscopy SEM energy dispersive analysis system of X ray EDAX The synthesized nanoparticles were used for treating the wastewater contaminated with the metal ions such as Pb II Zn II and Cd II A Response Surface Method RSM based on the Box Behnken Design BBD was used to evaluate the effects of pH temperature initial metal concentrations and adsorbent dosage The effects of pH and cadmium removal The effects of pH and adsorbent dosage were significant effects on lead removal and the significant factors on zinc removal were pH temperature and initial metal zinc with positive or negative effects either The competitive adsorption of Pb II Zn II and Cd II onto Maghemite nanoparticles was systematically investigated in single and ternary systems In single system equilibrium studies showed that the adsorption of Zn II and Cd II followed the Freundlich model while the adsorption data of Pb II well fitted with Langmuir model The maximum adsorption capacities were found to be 19 66 12 43 and 22 27 mg g respectively In ternary system the combined action of the metals was found to be antagonistic and the metal sorption followed the order of Pb II Cd II Zn II the Langmuir isotherm fitted the data of Zn II and Pb II well but the isotherm data of Cd II correlated well with the Freundlich model Kinetic data in ternary system are well fitted by pseudo second order model for all three kinds of heavy metal cations with correlation coefficients higher than 0 99 The results obtained indicate that the adsorption capacity of Maghemite nanoparticles was strongly influenced by the adsorption conditions and would be optimized by controlling the significant factors for each heavy metal cations Keywords Adsorption Heavy metals Design of Experiments Adsorption Isotherm Adsorption kinetics Maghemite Nanoparticles PDF created with pdfFactory trial version www pdffactory com
استاد راهنما :
علي احمدي عامله، احمدرضا مختاري
استاد مشاور :
هوشنگ اسدي هاروني، اسماعيل دره زرشكي
استاد داور :
حميد زيلوئي، مهدي نصيري
