پديد آورنده :
احمدي، جواد
عنوان :
ارتقاء كيفيت آب شستشوي مستعمل واحد اسيدشويي مجتمع فولاد مباركه
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
فرآيندهاي جداسازي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مهندسي شيمي
صفحه شمار :
يازده، 60ص.: مصور، جدول، نمودار
يادداشت :
ص.ع. به فارسي و انگليسي
استاد راهنما :
محمدچالكش اميري
توصيفگر ها :
آب دي ام , تبخير كننده , سود , اسيد كلريدريك , آهن
تاريخ نمايه سازي :
8/4/94
استاد داور :
علي اكبر دادخواه، احمد محب
تاريخ ورود اطلاعات :
1396/10/03
رشته تحصيلي :
مهندسي شيمي
چكيده انگليسي :
61 Upgrading Used Rinse Water in Pickling Unit of Mobarake Steel Complex Javad Ahmadi j ahmadi@ce iut ac ir Date of Submission Department College of Chemical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Dr Mohammad Amiri amir33@cc iut ac ir AbstractPickling units in mill industry counsumes a greate amount of water for washing and rinsing topurity and separating of scales and impurities About twenty five cubic meters per hour ofwaste water is produce in final rinsing step in Mobarakeh steel complex MSC The water forfinal rinsing must be pure that its quality the decrease after usage in this step therfor the wastewater produced in rinsing step can not be recycle and it sent to neutralization unit where thelime is added to it this neutralized water is used for irrigation Aim of this investigation isupgrade used the rinse water in pickling unit of Mobarakeh Steel Company by evaporator Atfirst were measured concentration of hydrochloride acid and amount iron ion in wastewater The concentration iron and HCl are 0 25 1 5 g l and 7 9 g l respectively4 wastewater must bepre treat before enters to evaporator because iron ion causing precipitation in the evaporatorand cause it disable There are different methods for the pretreatment that in this investigationhave used the caustic to neutralize the wastewater and iron removal 3 and 5 normal causticsoda is used by adding it almost all of the iron in the effluent comes in the form of sludge is produce After filtration 16 17 cubic meter ofprecipitation and 15 20 3 4neutralized effluent have entered to evaporator and there have heat transfer by vapour therefore condensate and transformed to DM water and are using for final rinsing of steelplates Keywords DM water evaporator Soda Hydrochloric Acid Iron
استاد راهنما :
محمدچالكش اميري
استاد داور :
علي اكبر دادخواه، احمد محب
