کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10261102 | 456576 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Paired electrolysis in a solid polymer electrolyte reactor-Simultaneously reduction of nitrate and oxidation of ammonia
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Paired electrolysis in a solid polymer electrolyte reactor-Simultaneously reduction of nitrate and oxidation of ammonia Paired electrolysis in a solid polymer electrolyte reactor-Simultaneously reduction of nitrate and oxidation of ammonia](/preview/png/10261102.png)
چکیده انگلیسی
Simultaneous reduction of nitrates and oxidation of ammonia in aqueous solutions have been carried out in a zero gap solid polymer electrolyte (ZGSPE) reactor, operated galvanostatically in a batch recycle mode. Complete removal of 16.1 mM nitrate and 9.4 mM ammonia was achieved within 45 h with removal rates of 0.057 mol NO3â cmâ2 hâ1 and 0.017 mol NH3 cmâ2 hâ1. Space-time yields of 5.4 kg NO3 mâ3 hâ1 and 0.17 kg NH3 mâ3 hâ1, current efficiencies for nitrogen formation of 24.5% in the nitrate reduction and 1.4% in the ammonia oxidation and energy consumptions of 40.1 kWh (kg NO3â)â1 were obtained during nitrate reduction, no nitrite was formed and N2 was the main product under the best conditions. However, an improvement in the selectivity for the ammonia oxidation towards nitrogen is required. Effects of reactant concentrations, temperature and flow rate have been investigated. Use of the ZGSPE reactor could treat a wide range of wastes containing nitrate and ammonia, including those with very low levels of nitrate ions and ammonia.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 108, Issue 3, 15 April 2005, Pages 257-268
Journal: Chemical Engineering Journal - Volume 108, Issue 3, 15 April 2005, Pages 257-268
نویسندگان
H. Cheng, K. Scott, P.A. Christensen,