کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4753333 | 1416555 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of carbon source on nitrogen removal in anaerobic ammonium oxidation (anammox) process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Anaerobic ammonium oxidation (anammox) has been regarded as an efficient process to treat high-strength wastewater without organic carbon source. To investigate nitrogen removal performance of anammox in presence of organic carbon source can broaden its application on organic wastewater treatment. In this work, effect of carbon source on anammox process was explored. Operating temperature was set at 35 ± 1°C. Influent pH and hydraulic retention time were 7.5 and 6 h, respectively. Effluent NH4+âN was affected little with COD no more than 480 mg/L. Independent of carbon source content, nitrite removal rate was around 99%. The variation of ÎNO2ââN/ÎNH4+âN lagged behind ÎNO3ââN/ÎNH4+âN at high COD content, and pH could be used as an indicator for NH4+âN removal. Specific anammox activity dropped from 0.39 to 0.19 kgNH4+âN/(kgVSS·d) at COD = 720 mg/L. The remodified logistic model was quite appropriate for describing the nitrogen removal kinetics and predicting the performance of anammox process in presence of carbon source.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Bioscience and Bioengineering - Volume 123, Issue 4, April 2017, Pages 497-504
Journal: Journal of Bioscience and Bioengineering - Volume 123, Issue 4, April 2017, Pages 497-504
نویسندگان
Weiqiang Zhu, Peiyu Zhang, Huiyu Dong, Jin Li,