Effect of Free Nitrous Acid on Nitrous Oxide Production and Denitrifying Phosphorus Removal by Polyphosphorus-Accumulating Organisms in Wastewater Treatment
المؤلفون المشاركون
Miao, Zhijia
Li, Duo
Guo, Shan
Zhao, Zhirui
Fang, Xiaofeng
Wen, Xueyou
Wan, Jingmin
Li, Aiguo
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-04-26
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
The inhibition of free nitrous acid (FNA) on denitrifying phosphorus removal has been widely reported for enhanced biological phosphorus removal; however, few studies focus on the nitrous oxide (N2O) production involved in this process.
In this study, the effects of FNA on N2O production and anoxic phosphorus metabolism were investigated using phosphorus-accumulating organisms (PAOs) culture highly enriched (91±4%) in Candidatus Accumulibacter phosphatis.
Results show that the FNA concentration notably inhibited anoxic phosphorus metabolism and phosphorus uptake.
Poly-β-hydroxyalkanoate (PHA) degradation was completely inhibited when the FNA concentration was approximately 0.0923 mgHNO2-N/L.
Higher initial FNA concentrations (0.00035 to 0.0103 mgHNO2-N/L) led to more PHA consumption/TN (0.444 to 0.916 mmol-C/(mmol-N·gVSS)).
Moreover, it was found that FNA, rather than nitrite and pH, was likely the true inhibitor of N2O production.
The highest proportion of N2O to TN was 78.42% at 0.0031 mgHNO2-N/L (equivalent to 42.44 mgNO2-N/L at pH 7.5), due to the simultaneous effects of FNA on the subsequent conversion of NO2 into N2O and then into N2.
The traditional nitrite knee point can only indicate the exhaustion of nitrite, instead of the complete removal of TN.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Miao, Zhijia& Li, Duo& Guo, Shan& Zhao, Zhirui& Fang, Xiaofeng& Wen, Xueyou…[et al.]. 2018. Effect of Free Nitrous Acid on Nitrous Oxide Production and Denitrifying Phosphorus Removal by Polyphosphorus-Accumulating Organisms in Wastewater Treatment. BioMed Research International،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1129580
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Miao, Zhijia…[et al.]. Effect of Free Nitrous Acid on Nitrous Oxide Production and Denitrifying Phosphorus Removal by Polyphosphorus-Accumulating Organisms in Wastewater Treatment. BioMed Research International No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1129580
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Miao, Zhijia& Li, Duo& Guo, Shan& Zhao, Zhirui& Fang, Xiaofeng& Wen, Xueyou…[et al.]. Effect of Free Nitrous Acid on Nitrous Oxide Production and Denitrifying Phosphorus Removal by Polyphosphorus-Accumulating Organisms in Wastewater Treatment. BioMed Research International. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1129580
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1129580
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر