Treating low carbon/nitrogen (C/N) wastewater in simultaneous nitrification-endogenous denitrification and phosphorous removal (SNDPR) systems by strengthening anaerobic intracellular carbon storage
作者： Xiaoxia Wang , Shuying Wang , Tonglai Xue , Baikun Li , Xian Dai
DOI: 10.1016/J.WATRES.2015.03.019
关键词:
摘要: A novel simultaneous nitrification denitrification and phosphorous removal-sequencing batch reactor (SNDPR-SBR) enriched with PAOs (phosphorus accumulating organisms), DPAOs (denitrifying PAOs), GAOs (glycogen organisms) at the ratio of 2:1:1 was developed to achieve nutrient carbon removal treating domestic wastewater low carbon/nitrogen (≤3.5). The SNDPR system operated for 120 days extended anaerobic stage (3 h) short aerobic oxygen concentration (2.5 sludge retention time (SRT) 10.9 d hydraulic (HRT) 14.6 h. results showed that stable operating stage, average effluent chemical demand (COD) PO4(3-)-P concentrations were 47.2 0.2 mg L(-1), respectively, total nitrogen (TN) efficiency 77.7%, SND reached 49.3%. Extended strengthened intracellular (mainly poly-β-hydroxybutyrate, PHB) storage, efficiently utilized organic substances in wastewater, provided sufficient sources phosphorus uptake without external addition. Short (dissolved (DO): 1 ± 0.3 L(-1)) achieved a concurrence nitrification, endogenous denitrification, denitrifying uptake, saved about 65% energy consumption aeration. Microbial community analysis demonstrated P mainly performed by while N carried out (DGAOs), even though also participated both removal.
cabdirect.org
sci-hub.se 参考文章(38)
Gulsum Yilmaz, Romain Lemaire, Jurg Keller, Zhiguo Yuan, Simultaneous nitrification, denitrification, and phosphorus removal from nutrient‐rich industrial wastewater using granular sludge Biotechnology and Bioengineering. ,vol. 100, pp. 529- 541 ,(2008) , 10.1002/BIT.21774
Yunhong Kong, Say Leong Ong, Wun Jun Ng, Wen-Tso Liu, Diversity and distribution of a deeply branched novel proteobacterial group found in anaerobic–aerobic activated sludge processes Environmental Microbiology. ,vol. 4, pp. 753- 757 ,(2002) , 10.1046/J.1462-2920.2002.00357.X
A.M. Saunders, A. Oehmen, L.L. Blackall, Z. Yuan, J. Keller, The effect of GAOs (glycogen accumulating organisms) on anaerobic carbon requirements in full-scale Australian EBPR (enhanced biological phosphorus removal) plants Water Science and Technology. ,vol. 47, pp. 37- 43 ,(2003) , 10.2166/WST.2003.0584
Gregory R Crocetti, Jillian F Banfield, Jürg Keller, Philip L Bond, Linda L Blackall, None, Glycogen-accumulating organisms in laboratory-scale and full-scale wastewater treatment processes Microbiology. ,vol. 148, pp. 3353- 3364 ,(2002) , 10.1099/00221287-148-11-3353
R I Amann, L Krumholz, D A Stahl, Fluorescent-oligonucleotide probing of whole cells for determinative, phylogenetic, and environmental studies in microbiology. Journal of Bacteriology. ,vol. 172, pp. 762- 770 ,(1990) , 10.1128/JB.172.2.762-770.1990
Andrew Eaton, A.E. Greenberg, Lenore S. Clesceri, Standard methods for the examination of water and wastewater Published in <b>1998</b> in Washington DC) by American public health association. ,(1992)
DENITRIFICATION KINETICS IN BIOLOGICAL N AND P REMOVAL ACTIVATED SLUDGE SYSTEMS TREATING MUNICIPAL WASTEWATERS Water Science and Technology. ,vol. 39, pp. 69- 77 ,(1999) , 10.1016/S0273-1223(99)00124-9
Hong-bo Chen, Qi Yang, Xiao-ming Li, Yan Wang, Kun Luo, Guang-ming Zeng, Post-anoxic denitrification via nitrite driven by PHB in feast-famine sequencing batch reactor. Chemosphere. ,vol. 92, pp. 1349- 1355 ,(2013) , 10.1016/J.CHEMOSPHERE.2013.05.052
Raymond J. Zeng, Mark C. M. van Loosdrecht, Zhiguo Yuan, J�rg Keller, Metabolic model for glycogen-accumulating organisms in anaerobic/aerobic activated sludge systems. Biotechnology and Bioengineering. ,vol. 81, pp. 92- 105 ,(2003) , 10.1002/BIT.10455
M. C. M. van Loosdrecht, J. J. Heijnen, G. J. F. Smolders, J. van der Meij, Stoichiometric Model of the Aerobic Metabolism of the Biological Phosphorus Removal Process Biotechnology and Bioengineering. ,vol. 44, pp. 837- 848 ,(1994) , 10.1002/BIT.260440709