کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7705860 1497302 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of particle number, substrate concentration and temperature of batch immobilized reactor system for biohydrogen production by dark fermentation
ترجمه فارسی عنوان
بهینه سازی تعداد ذرات، غلظت سوبسترا و درجه حرارت سیستم راکتیو ثابت شده برای تولید بیو هیدروژن توسط تخمیر تیره
کلمات کلیدی
بیو هیدروژن، تخمیر تیره، ایمن سازی، جعبه طراحی ویلسون، بهینه سازی،
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
Immobilized cell bioreactor was operated in batch mode for biohydrogen generation by dark fermentation from acid hydrolyzed waste wheat powder. It was aimed to optimize the fermentation conditions with the purpose of obtaining the highest hydrogen yield (YH2) and production rate (HPR) by applying Box-Wilson statistical experimental design method. Particle number (PN = 120-240; X1), initial total sugar concentration (TS0 = 10-30 g/l; X2) and fermentation temperature (T = 35-55 °C; X3) were selected as independent variables. Polyester fibers with particle diameter “Dp” = 0.5 cm were used as support material to immobilize microorganisms with heat-pretreated sludge. Quadratic equations for production yield and rate were developed by using experimental results. The maximum YH2 (3.21 mol H2/mol glucose) and HPR (73.3 ml H2/h) were predicted at the optimum conditions of PN = 240, TS0 = 10 g/l and T = 44.9 °C. Also, analysis of variance, as well as sum of ranking difference test results demonstrated that fitting models were statistically significant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 23, 7 June 2018, Pages 10655-10665
نویسندگان
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