Understanding the microbial trends in a nitritation reactor fed with primary settled municipal wastewater
作者： Alba Pedrouso , David Correa-Galeote , Paula Maza-Márquez , Belén Juárez-Jimenez , Jesús González-López
DOI: 10.1016/J.SEPPUR.2020.117828
关键词:
摘要: Abstract Partial nitritation was pointed out as the key step to implement autotrophic nitrogen removal processes at low temperature. This study investigated initiation and maintenance of a process with simultaneous COD in sequencing batch reactor (SBR) run 15 °C fed primary settled urban wastewater characterized by 42 ± 10 mg TOC/L 45 ± 4 mg NH4+-N/L. A nitrite accumulation ratio nearly 100% observed long-term (354 days) stability successfully maintained despite municipal composition fluctuations. The absence oxidizing bacteria (NOB) activity attributed free nitrous acid (FNA) in-situ accumulated high levels (0.02–0.20 mg HNO2-N/L). Despite nitrate production not observed, quantification bacterial groups indicated that NOB were present SBR sludge throughout entire operational period. Ammonium (AOB) abundance community structure significantly influenced organic matter feeding. Average efficiencies 80% obtained without observing any detrimental effect over performance, due functional redundancy within both chemoheterotrophic AOB communities.
sci-hub.st 参考文章(49)
Shanyun Wang, Yongzhen Peng, Bin Ma, Shuying Wang, Guibing Zhu, Anaerobic ammonium oxidation in traditional municipal wastewater treatment plants with low-strength ammonium loading: Widespread but overlooked Water Research. ,vol. 84, pp. 66- 75 ,(2015) , 10.1016/J.WATRES.2015.07.005
Boran Kartal, Laura van Niftrik, Jan T. Keltjens, Huub J.M. Op den Camp, Mike S.M. Jetten, Anammox--growth physiology, cell biology, and metabolism. Advances in Microbial Physiology. ,vol. 60, pp. 211- 262 ,(2012) , 10.1016/B978-0-12-398264-3.00003-6
Joke Geets, Nico Boon, Willy Verstraete, Strategies of aerobic ammonia‐oxidizing bacteria for coping with nutrient and oxygen fluctuations FEMS Microbiology Ecology. ,vol. 58, pp. 1- 13 ,(2006) , 10.1111/J.1574-6941.2006.00170.X
Fangshu Ma, Anding Li, Boyin Li, Zhibo Cui, Chunhong Shi, Beihai Zhou, Prolonged starvation and subsequent recovery of nitrification process in a simulated photovoltaic aeration SBR Environmental Science and Pollution Research. ,vol. 22, pp. 10778- 10787 ,(2015) , 10.1007/S11356-015-4246-8
Shunsuke Takahashi, Junko Tomita, Kaori Nishioka, Takayoshi Hisada, Miyuki Nishijima, Development of a Prokaryotic Universal Primer for Simultaneous Analysis of Bacteria and Archaea Using Next-Generation Sequencing PLoS ONE. ,vol. 9, pp. e105592- ,(2014) , 10.1371/JOURNAL.PONE.0105592
Abdelsalam Elawwad, Hendrik Sandner, Uwe Kappelmeyer, Heinz Koeser, Long-term starvation and subsequent recovery of nitrifiers in aerated submerged fixed-bed biofilm reactors. Environmental Technology. ,vol. 34, pp. 945- 959 ,(2013) , 10.1080/09593330.2012.722758
D GAO, Y PENG, B LI, H LIANG, Shortcut nitrification–denitrification by real-time control strategies Bioresource Technology. ,vol. 100, pp. 2298- 2300 ,(2009) , 10.1016/J.BIORTECH.2008.11.017
Shengbo Gu, Shuying Wang, Qing Yang, Pei Yang, Yongzhen Peng, Start up partial nitrification at low temperature with a real-time control strategy based on blower frequency and pH Bioresource Technology. ,vol. 112, pp. 34- 41 ,(2012) , 10.1016/J.BIORTECH.2011.12.028
Qing Yang, Yongzhen Peng, Xiuhong Liu, Wei Zeng, Takashi Mino, Hiroyasu Satoh, Nitrogen removal via nitrite from municipal wastewater at low temperatures using real-time control to optimize nitrifying communities. Environmental Science & Technology. ,vol. 41, pp. 8159- 8164 ,(2007) , 10.1021/ES070850F
Carol E. Bower, Thomas Holm-Hansen, A Salicylate–Hypochlorite Method for Determining Ammonia in Seawater Canadian Journal of Fisheries and Aquatic Sciences. ,vol. 37, pp. 794- 798 ,(1980) , 10.1139/F80-106