کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7073377 1459947 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of electro-stimulation on activity of heterotrophic denitrifying bacteria and denitrification performance
ترجمه فارسی عنوان
تاثیر تحریک الکتریکی بر فعالیت باکتری های نیتروتریک هتروتروفیک و عملکرد دینتیفیابی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The effects of electro-stimulation on heterotrophic denitrifying bacterial activity and nitrate removal were investigated using a bench-scale bio-electrochemical reactor in this study. Results showed that the maximum nitrate removal efficiency was 100% at the optimum current density of 200 mA/m2, at which low nitrite production and high ATP aggregate level were obtained. The activity of denitrifying bacteria was highest at the range densities of 200-250 mA/m2, although the terminative pH increased to 8.62 at 200 mA/m2 and 9.63 at 250 mA/m2. This demonstrates that suitable current densities could improve the activity of denitrifying bacteria. Therefore, this study provides a number of useful information to improve the bio-electrochemical reactor designs and promote the removal efficiency of pollutants.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 196, November 2015, Pages 123-128
نویسندگان
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