DOI: 10.1016/j.watres.2017.11.059
Scopus记录号: 2-s2.0-85036631628
论文题名: Microbial electricity driven anoxic ammonium removal
作者: Vilajeliu-Pons A. ; Koch C. ; Balaguer M.D. ; Colprim J. ; Harnisch F. ; Puig S.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 130 起始页码: 168
结束页码: 175
语种: 英语
英文关键词: Bioelectrochemical system
; Cyclic voltammetry
; Hydroxylamine
; Microcosm
; Nitrogen cycle
; Wastewater treatment
Scopus关键词: Amines
; Cost engineering
; Cyclic voltammetry
; Energy utilization
; Nitrification
; Nitrogen removal
; Reclamation
; Aerobic nitrification
; Bio-electrochemical systems
; Energy-demanding process
; Hydroxylamine
; Microbial electricities
; Microcosm
; Nitrogen cycles
; Wastewater treatment plants
; Wastewater treatment
; ammonia
; buffer
; dinitrogen
; DNA 16S
; hydroxylamine
; nitrogen
; nitrogen derivative
; unclassified drug
; ammonium derivative
; nitrogen
; aeration
; ammonium
; anoxic conditions
; bacterium
; electricity
; equipment
; microbial activity
; microcosm
; nitrification
; nitrogen
; nitrogen cycle
; nitrogen dioxide
; pollutant removal
; reduction
; wastewater
; wastewater treatment
; wastewater treatment plant
; Article
; biological phenomena and functions concerning the entire organism
; controlled study
; current density
; cyclic potentiometry
; electric potential
; electricity
; electrochemistry
; energy consumption
; microcosm
; nitrification
; nitrogen balance
; Nitrosomonas
; oxidation
; priority journal
; thermodynamics
; waste water treatment plant
; anaerobic bacterium
; bioreactor
; chemistry
; electrophysiology
; metabolism
; procedures
; waste water
; water management
; Europe
; Nitrosomonas
; Ammonium Compounds
; Bacteria, Anaerobic
; Bioreactors
; Electrophysiological Phenomena
; Nitrification
; Nitrogen
; Waste Water
; Water Purification
英文摘要: Removal of nitrogen, mainly in form of ammonium (NH4 +), in wastewater treatment plants (WWTPs) is a highly energy demanding process, mainly due to aeration. It causes costs of about half a million Euros per year in an average European WWTP. Alternative, more economical technologies for the removal of nitrogen compounds from wastewater are required. This study proves the complete anoxic conversion of ammonium (NH4 +) to dinitrogen gas (N2) in continuously operated bioelectrochemical systems at the litre-scale. The removal rate is comparable to conventional WWTPs with 35 ± 10 g N m−3 d−1 with low accumulation of NO2 −, NO3 −, N2O. In contrast to classical aerobic nitrification, the energy consumption is considerable lower (1.16 ± 0.21 kWh kg−1 N, being more than 35 times less than for the conventional wastewater treatment). Biotic and abiotic control experiments confirmed that the anoxic nitrification was an electrochemical biological process mainly performed by Nitrosomonas with hydroxylamine as the main substrate (mid-point potential, Eox = +0.67 ± 0.08 V vs. SHE). This article proves the technical feasibility and reduction of costs for ammonium removal from wastewater, investigates the underlying mechanisms and discusses future engineering needs. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113063
Appears in Collections: 气候减缓与适应
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作者单位: LEQUiA, Institute of the Environment, University of Girona, Girona, Spain; Department of Environmental Microbiology, Helmholtz Centre for Environmental Research GmbH – UFZ, Leipzig, Germany
Recommended Citation:
Vilajeliu-Pons A.,Koch C.,Balaguer M.D.,et al. Microbial electricity driven anoxic ammonium removal[J]. Water Research,2018-01-01,130