DOI: 10.1016/j.watres.2019.01.001
Scopus记录号: 2-s2.0-85059860513
论文题名: Mass transfer enhancement and improved nitrification in MABR through specific membrane configuration
作者: Castrillo M. ; Díez-Montero R. ; Esteban-García A.L. ; Tejero I.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 1
结束页码: 11
语种: 英语
英文关键词: Energy self-sufficiency
; MABR
; Mass transfer
; Nitrification
; Nutrient removal
; Wastewater
Scopus关键词: Biofilms
; Biological water treatment
; Energy utilization
; Mass transfer
; Nitrification
; Wastewater
; Wastewater treatment
; Energy self-sufficiency
; MABR
; Mass transfer enhancement
; Mass transfer limitation
; Membrane aerated biofilm reactors (MABR)
; Nutrient removal
; Oxygen transfer efficiency
; Wastewater treatment plants
; Energy efficiency
; oxygen
; aeration
; bioreactor
; energy efficiency
; hydrodynamics
; membrane
; nitrification
; performance assessment
; pollutant removal
; wastewater
; wastewater treatment plant
; aeration
; Article
; energy balance
; energy consumption
; hydrodynamics
; mass
; membrane
; nitrification
; priority journal
; waste water management
英文摘要: One of the main energy consumptions in wastewater treatment plants (WWTPs) is due to the oxygenation of aerobic biological processes. In order to approach to an energy self-sufficient scenario in WWTPs, Membrane Aerated Biofilm Reactors (MABRs) provide a good opportunity to reduce the impact of aeration on the global energy balance. However, mass transfer limitations derived from poor flow distribution must be tackled to take advantage of this technology. In this work, in order to improve mass transfer between biofilm and bulk water, a specific configuration was developed and studied at laboratory scale, aimed at compactness, energy efficiency and high nitrification rates. Nitrification rates were higher in the innovative configuration than in the conventional one, achieving a Volumetric Nitrification Rate (VNR) as high as 575.84 g NH4-N m−3 d−1, which is comparable with confirmed technologies. Regarding energy consumption due to aeration, a reduction of 83.7% was reached in comparison with aeration through diffusers with the same Oxygen Transfer Efficiency (OTE). These results highlight the importance of hydrodynamic conditions and the membranes configuration on treatment performance. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122026
Appears in Collections: 气候变化事实与影响
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作者单位: Environmental Engineering Group, Department of Science and Techniques of Water and the Environment, University of Cantabria, Santander, Spain; Group of Environmental Engineering and Microbiology, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain
Recommended Citation:
Castrillo M.,Díez-Montero R.,Esteban-García A.L.,et al. Mass transfer enhancement and improved nitrification in MABR through specific membrane configuration[J]. Water Research,2019-01-01