کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7080402 | 1459996 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mdodeling a nitrite-dependent anaerobic methane oxidation process: Parameters identification and model evaluation
ترجمه فارسی عنوان
تعیین روند فرآیند اکسیداسیون متان اکسیداز وابسته به نیتریت: شناسایی پارامترها و ارزیابی مدل
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Nitrite-dependent anaerobic methane oxidation (n-damo) is a recently discovered process that is intermediated by n-damo bacteria that oxidize methane with nitrite to generate nitrogen gas. In this work, a kinetic model based on Monod type kinetics and diffusion-reaction model was developed to describe the bioprocess. Some key kinetic parameters needed in the model were obtained from a series of batch activity tests and a sequencing batch reactor (SBR) operation over 100 days. The growth rate, decay rate, methane affinity constant, nitrite affinity constant and inhibition constant were 0.0277 ± 0.0022 dâ1, 0.00216 ± 0.00010 dâ1, 0.092 ± 0.005 mmol Lâ1, 0.91 ± 0.09 mmol Lâ1 and 4.1 ± 0.5 mmol Lâ1 for n-damo bacteria at 30 °C, respectively. The results showed that the model could simulate actual performance of the SBR in the first 76 days, that methane was not a limiting factor at atmospheric pressure for its high affinity, and that the optimum nitrite concentration was 1.92 mmol Lâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 147, November 2013, Pages 315-320
Journal: Bioresource Technology - Volume 147, November 2013, Pages 315-320
نویسندگان
Zhanfei He, Chen Cai, Sha Geng, Liping Lou, Xiangyang Xu, Ping Zheng, Baolan Hu,