پديد آورنده :
سيدبرزاني، محبوبه
عنوان :
بررسي عملكرد فرآيند انعقاد الكتريكي و لخته سازي تكميلي در حذف مواد شوينده از محلول هاي آبي
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده عمران
صفحه شمار :
هفده، 127ص.: مصور، جدول، نمودار
يادداشت :
ص.ع. به فارسي و انگليسي
استاد راهنما :
امير تائبي، هستي هاشمي نژاد
توصيفگر ها :
الكترود آهن , فاكتوريل كامل
تاريخ نمايه سازي :
20/2/91
استاد داور :
محمدمهدي امين، شهناز بمانيان
تاريخ ورود اطلاعات :
1396/10/06
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخخه ديجيتالي
چكيده انگليسي :
Evaluation of Electro Coagulation and Complementary Flocculation Processes for Detergent Removal from Aqueous Solution Mahboobeh Sayedbarzany m sayedbarzany@cv iut ac ir 27 2 2012 Department of civil Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Amir Taebi Harandi amirth@cc iut ac ir Hasti Hasheminejad Hhasheminejad@cc iut ac irAbstract Discharge of wastewater contained detergent into water body causes entering phosphate compoundinto water and Eutrophication Today replacement of common detergent is not economically One of thewater and wastewater treatment methods is chemical coagulation This method produce huge amount ofsludge and has high sludge disposal expenses as a result of using chemical materials Electro coagulation isa suitable method for replacement of common chemical coagulation In this technology coagulants releasein solution by solving electrode instead of utilizing metallic salt or polymer In this study ability of electro coagulation and complementary flocculation by using iron as electrodein treatment of wastewater contained detergent was evaluated COD removal was evaluating factor ofremoval efficiency In order to optimize the removal efficiency four factors including pH initial detergentconcentration electrolysis time and electrical current were investigated and experiments were carried out inbatch reactors Full factorial method was used for studding any of these factors and optimum condition wasdetermined Results showed that in optimum conditions electro coagulation and complementaryflocculation with iron is capable of reducing COD concentration from 217 mg L to 81 3 mg L furthermoreANOVA analyze showed that all of the experimental factors were statistically significant ANOVA resultsrevealed that the contribution of error term in the total results for all of the samples is less than 16 Interaction analysis were carried out to investigate the relative importance of different interactions betweeninvolved factors in this sample and it was concluded that the most important interaction in this samplehappens between pH and initial detergent concentration Considering the behavior of the coagulants resultsit was concluded that charge neutralization and bridging are the most important mechanisms in detergentCOD removal using waste iron electrode Also the experiments showed that final pH samples after ofelectro coagulation and complementary flocculation increased and in optimum condition it was equal 8 04 Moreover examination revealed that electro coagulation and complementary flocculation in compareof chemical coagulation with ferric chloride and ferric soleplate was used less coagulation and producedless sludge volume and reached higher COD removal Overall this study showed that electro coagulationand complementary flocculation is capable of decreasing detergent COD and can be used as a cheap easyapplication and low producing sludge alternative in wastewater treatment Key Words Detergent electro coagulation complementary flocculation Iron electrode Full factorial
استاد راهنما :
امير تائبي، هستي هاشمي نژاد
استاد داور :
محمدمهدي امين، شهناز بمانيان
