پديد آورنده :
نادري، فاطمه
عنوان :
تصفيه پساب صنايع لبني با استفاده از پيل سوختي ميكروبي تك محفظه اي حلقوي در جريان پيوسته
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
مهندسي شيمي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مهندسي شيمي
صفحه شمار :
هفده،108ص.: مصور،جدول،نمودار(رنگي)
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
محسن نصراصفهاني، طيبه بهزاد
توصيفگر ها :
كشت ميكروبي پيوسته , زمان ماند هيدروليكي , مقاومت بهينه , فرارفت
تاريخ نمايه سازي :
25/3/93
استاد داور :
ارجمند مهرباني، علي اكبر دادخواه
چكيده انگليسي :
109 Experimental Investigation of Continuous Annular Single Chamber Microbial Fuel Cell ASCMFC in dairy wastewater treatment Fatemeh Naderi f naderi@ce iut ac ir Date of Submission 2014 01 20 Department of Chemical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisors Mohsen Nasr Esfahany mnasr@cc iut ac ir Tayebeh Behzad tbehzad@cc iut ac ir Abstract The main objective of this study is investigation of dairy wastewater treatment and spontaneous power generation in a microbial fuel cell MFC in continuous mode Dairy wastewater is rich in different types of organic and biodegradable compounds with high COD so it is proper for usage as a fuel in MFCs An annular single chamber microbial fuel cell ASCMFC was fabricated for this objective The inoculation was done in continuous flow mode The open circuit voltage at steady state condition was 600 mV and it remained constant throughout inoculation process Comparison of the operation of a continuously inoculated biofilm with a batch one proved that continuous microbial enrichment made stronger anodic biofilm better resisting undesirable conditions compared to batch mode The maximum electrical output was obtained at resistance of 500 with power density of 1 84 W m3 and current of 0 57 mA Along with good substrate degradation COD removal 95 4 continuous ASCMFC also documented good removal of turbidity 91 For the first time optimum resistances were specified from the treatment and power generation perspectives and refered to difference between these two concepts The optimum resistances from treatment and power generation aspects were 200 and 500 sequentially Comparison of results in batch and continuous mode of ASCMFC clarified a considerable reality Maximum power density in batch mode is more than 10 fold of that obtained in continuous mode It was found that most of the measurements in batch mode were influenced by type M overshoot at low resistances Type M overshoot is defined by the production of maximum power density much higher than that can be undergone at a fixed resistance This makes measurements in batch mode unreliable for scale up due to the overestimation occurred in the instance of feed injection To investigate the effects of different polarization types on the performance of the continuous ASCMFC disturbance of changing resistances was eliminated by exerting a fixed resistance and changing flow rates instead Continuous ASCMFC has had the best electrical performance at hydraulic retention time of 30 hr This technique also proves that treatment optimum resistance is independent of HRT Even applying this trend couldn t eliminate type D overshoot so insufficient time for acclimation of biofilm to a new resistance can be one of the reasons of power overshoot but it seems more parameters are culprit of this malfunction Keywords Microbial Fuel Cell Continuous bacterial enrichment Dairy wastewater Hydraulic Retention Time HRT Power overshoot Optimum resistance PDF created with pdfFactory Pro trial version www pdffactory com
استاد راهنما :
محسن نصراصفهاني، طيبه بهزاد
استاد داور :
ارجمند مهرباني، علي اكبر دادخواه
