[Influence of Operating Modes for the Alternating Anoxic/Oxic Process on Biological Nitrogen Removal and Extracellular Polymeric Substances of Activated Sludge].

التفاصيل البيبلوغرافية
العنوان:	[Influence of Operating Modes for the Alternating Anoxic/Oxic Process on Biological Nitrogen Removal and Extracellular Polymeric Substances of Activated Sludge].
المؤلفون:	Sun HW; School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China., Chen CZ; School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China., Wu CF; Lanzhou Veolia Water(group) Co., Ltd., Lanzhou 730060, China., Zhao HN; School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China., Yu X; School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China., Fang XH; South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China.
المصدر:	Huan jing ke xue= Huanjing kexue [Huan Jing Ke Xue] 2018 Jan 08; Vol. 39 (1), pp. 256-262.
نوع المنشور:	Journal Article
اللغة:	Chinese
بيانات الدورية:	Publisher: Ke xue zhu ban she Country of Publication: China NLM ID: 8405344 Publication Model: Print Cited Medium: Print ISSN: 0250-3301 (Print) Linking ISSN: 02503301 NLM ISO Abbreviation: Huan Jing Ke Xue Subsets: MEDLINE
أسماء مطبوعة:	Original Publication: Beijing : Ke xue zhu ban she,
مواضيع طبية MeSH:	Bioreactors* , Extracellular Polymeric Substance Matrix* , Nitrification* , Sewage, Nitrogen/isolation & purification, Wastewater
مستخلص:	Nitrogen removal, extracellular polymeric substances (EPS), and the chemical composition (protein (PN), polysaccharide (PS), and DNA) by the aerobic/anoxic (O/A) and the anoxic/aerobic (A/O) modes were studied in a sequencing batch reactor (SBR) fed with domestic wastewater. The results showed that the removal rates of NH 4 ⁺ -N were 97.5% and 98.0% in the two operating modes, respectively, and a removal efficiency of NH 4 ⁺ -N with high efficiency and stability was obtained. The nitrification rate was positively correlated with the nitrogen loading ratio. The influence of operating modes for the alternating anoxic/oxic mode on extracellular polymeric substances of activated sludge was evaluated. The EPS constituent in the A/O mode was slightly higher than the O/A mode. The operating mode had no effect on the contents of PN, PS, and DNA in tightly bound EPS (TB-EPS) and TB-EPS. However, PN and PS in loosely bound EPS (LB-EPS) and LB-EPS in the A/O mode were 1.38 to 1.56 times those of the O/A mode. In the two operating modes, PSs were the main constituents in the TB-EPS and EPS, while PNs were the main constituents in LB-EPS. The EPS content had a good linear correlation with the sludge settling performance.
فهرسة مساهمة:	Keywords: biological nitrogen removal; extracellular polymeric substances; operating modes; sequence batch reactor (SBR)
المشرفين على المادة:	0 (Sewage) 0 (Waste Water) N762921K75 (Nitrogen)
تواريخ الأحداث:	Date Created: 20180703 Date Completed: 20190103 Latest Revision: 20221207
رمز التحديث:	20221213
DOI:	10.13227/j.hjkx.201705191
PMID:	29965690
قاعدة البيانات:	MEDLINE

الوصف
تدمد:	0250-3301
DOI:	10.13227/j.hjkx.201705191