کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6586010 | 456382 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced production of methane from waste activated sludge by the combination of high-solid anaerobic digestion and microbial electrolysis cell with iron-graphite electrode
ترجمه فارسی عنوان
تولید پیشرفته متان از لجن فعال با ترکیب ترکیبی از هضم بی هوازی و سلول الکترولیز میکروبی با الکترود آهن گرافیت
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Batch tests were operated to investigate the bioelectrochemical enhancement of methane production from the high-solid anaerobic digestion of waste sludge in the microbial electrolysis cells (MEC) with iron-graphite electrode. Compared with the control tests, methane production in the MEC with iron-graphite electrode increased by 22.4% and VSS removal rate increased by 11% at an applied voltage of 0.3Â V. However the methane production decreased and hydrogen was cathodically produced when increasing the voltage to 0.6Â V. At the higher voltage, the excessive utilization of H+ in the cathode led to the alkaline pH to inhibit the methanogenesis. The applied voltages of 0.3Â V could also enhance the removal of suspended and volatile suspended solids. The input of energy at 0.3Â V could be neglected compared to the incremental energy generated from the methane. Denaturing gradient gel electrophoresis analysis revealed that the operation at 0.3Â V had a bioaugmentation effect for both archaea and bacteria in the high-solid anaerobic digestion of waste sludge, which might be useful for enhancing VFA formation and methane production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 259, 1 January 2015, Pages 787-794
Journal: Chemical Engineering Journal - Volume 259, 1 January 2015, Pages 787-794
نویسندگان
Yinghong Feng, Yaobin Zhang, Shuo Chen, Xie Quan,