کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
685275 889037 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of substrate loading rate of chemical wastewater on fermentative biohydrogen production in biofilm configured sequencing batch reactor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Effect of substrate loading rate of chemical wastewater on fermentative biohydrogen production in biofilm configured sequencing batch reactor
چکیده انگلیسی

The influence of substrate loading rate on fermentative hydrogen (H2) production was studied in biofilm configured sequencing batch reactor using chemical wastewater as substrate. Reactor was operated with selectively enriched anaerobic mixed microflora at different organic loading rates (OLRs; 6.3, 7.1 and 7.9 kg COD/m3 day) after adjusting the feed to a pH of 6.0 (acidophilic) to provide suitable environment for acidogenic bacterial function. Variation in H2 production rate was observed with change in OLR [specific hydrogen yield – 13.44 mol H2/kg CODR day (6.3 kg COD/m3 day), 8.23 mol H2/kg CODR day (7.1 kg COD/m3 day) and 6.064 mol H2/kg CODR day (7.9 kg COD/m3 day)]. H2 yield showed reasonably good correlation with pH drop [6.3 kg COD/m3 day (R2 – 0.9796), 7.1 kg COD/m3 day (R2 – 0.9973), 7.9 kg COD/m3 day (R2 – 0.9908)]. Increase in OLR showed marked reduction in COD removal efficiency [22.6% – 6.3 kg COD/m3 day; 19.8% – 7.1 kg COD/m3 day and 17.2% – 7.9 kg COD/m3 day].

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 99, Issue 15, October 2008, Pages 6941–6948
نویسندگان
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