DOI: 10.1016/j.watres.2017.10.058
Scopus记录号: 2-s2.0-85032808263
论文题名: Stable long-term operation of an upflow anammox sludge bed reactor at mainstream conditions
作者: Reino C. ; Suárez-Ojeda M.E. ; Pérez J. ; Carrera J.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 128 起始页码: 331
结束页码: 340
语种: 英语
英文关键词: Anammox
; Low temperature
; Mainstream
; Urban wastewater
Scopus关键词: Atmospheric temperature
; Fluorescence microscopy
; Nitrogen removal
; ANAMMOX
; Fluorescence in situ hybridization
; Low temperatures
; Mainstream
; Nitrogen removal rates
; Relative abundance
; Urban wastewater
; Urban wastewater treatment plants
; Wastewater treatment
; ammonia
; nitrite
; nitrogen
; ammonium derivative
; ammonium
; anoxic conditions
; bacterium
; bioreactor
; fluorescence
; low temperature
; nitrite
; nitrogen
; operations technology
; oxidation
; pollutant removal
; reduction
; relative abundance
; urban area
; wastewater
; wastewater treatment plant
; analytic method
; anammox bacterium
; Article
; bioreactor design
; Candidatus Brocadia anammoxidans
; clinical assessment
; fluorescence in situ hybridization
; heavy metal removal
; heterotroph
; heterotrophy
; low temperature
; nonhuman
; priority journal
; reactor operation
; sludge
; species identification
; urban area
; waste water management
; anaerobic growth
; bacterium
; bioreactor
; evaluation study
; feasibility study
; isolation and purification
; metabolism
; microbiology
; oxidation reduction reaction
; sewage
; temperature
; waste management
; waste water
; Candidatus Brocadia anammoxidans
; Ammonium Compounds
; Anaerobiosis
; Bacteria
; Bioreactors
; Feasibility Studies
; In Situ Hybridization, Fluorescence
; Nitrites
; Nitrogen
; Oxidation-Reduction
; Sewage
; Temperature
; Waste Management
; Waste Water
英文摘要: The efforts for implementing the anammox process at mainstream conditions with high nitrogen removal rates have gained much attention in the race for achieving an energy-positive urban wastewater treatment plant. Here, the successful and stable long-term operation of an Upflow Anammox Sludge Bed (UAnSB) reactor treating a low-strength synthetic influent amended with ammonium and nitrite for 420 days, and a nitrite-amended pre-treated real urban wastewater for 110 days at temperatures as low as 11 °C is presented. The short and long-term effects of temperature on anammox activity were assessed when the synthetic influent was treated, and the UAnSB reactor was demonstrated to be a robust reactor to confront low temperatures, typically found at mainstream conditions. In fact, a nitrogen loading rate as high as 1.8 ± 0.1 g N L−1 d−1 with 82 ± 4% of nitrogen removal was achieved at 11 °C treating the low-strength synthetic influent. Furthermore, the effect of treating a nitrite-amended pre-treated real urban wastewater at 11 °C at long-term in the UAnSB reactor was evaluated, and a stable operation was achieved with a high average nitrogen removal rate (1.2 ± 0.5 g N L−1 d−1). The relative abundance of anammox bacteria was maintained higher than 70% according to fluorescence in situ hybridization during the whole operation, being Candidatus Brocadia anammoxidans the predominant microbial species. The presence of heterotrophs in the sludge bed was surmised through heterotrophic batch tests, but anammox activity was demonstrated to be higher than heterotrophic activity, even when the synthetic influent was replaced by the nitrite-amended pre-treated real wastewater. The feasibility of operating an enriched anammox reactor at high nitrogen removal rate at long-term at mainstream conditions was demonstrated in this study. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113125
Appears in Collections: 气候减缓与适应
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作者单位: GENOCOV Research Group, Department of Chemical, Biological and Environmental Engineering, School of Engineering, Universitat Autònoma de Barcelona, Ed. Q-Campus UAB, Bellaterra, Barcelona, 08193, Spain
Recommended Citation:
Reino C.,Suárez-Ojeda M.E.,Pérez J.,et al. Stable long-term operation of an upflow anammox sludge bed reactor at mainstream conditions[J]. Water Research,2018-01-01,128