کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
681734 888961 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of operational parameters on Coulombic efficiency in bioelectrochemical systems
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Effect of operational parameters on Coulombic efficiency in bioelectrochemical systems
چکیده انگلیسی

To create an efficient bioelectrochemical system, a high Coulombic efficiency is required. This efficiency is a direct measure for the competition between electrogens and methanogens when acetate is used as substrate. In this study the Coulombic efficiency in a microbial electrolysis cell was investigated. As a result of an increase in substrate concentration from 1 to 35 mM, the current density increased to 21.1 A/m2, while the Coulombic efficiency decreased to 52%. As a result of an increase in anode potential from −450 to −0.250 mV, the current density increased to 20.9 A/m2, while the Coulombic efficiency increased 21%. Knowledge about the substrate affinity and growth kinetics is crucial to control the Coulombic efficiency. Further research is required to optimize strategies to find a balance between the Coulombic efficiency, current density and removal rate of organic material.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 102, Issue 24, December 2011, Pages 11172–11176
نویسندگان
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