DOI: 10.1016/j.watres.2018.05.046
Scopus记录号: 2-s2.0-85049328562
论文题名: The role of salinity on the changes of the biomass characteristics and on the performance of an OMBR treating tannery wastewater
作者: Luján-Facundo M.J. ; Fernández-Navarro J. ; Alonso-Molina J.L. ; Amorós-Muñoz I. ; Moreno Y. ; Mendoza-Roca J.A. ; Pastor-Alcañiz L.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 142 起始页码: 129
结束页码: 137
语种: 英语
英文关键词: Draw solution
; Forward osmosis
; Microbial community
; Osmotic membrane bioreactor
; Tannery wastewater
Scopus关键词: Adenosinetriphosphate
; Bacteria
; Batch reactors
; Bioconversion
; Biological water treatment
; Bioreactors
; Industrial water treatment
; Membrane fouling
; Membrane technology
; Osmosis
; Osmosis membranes
; Sulfur compounds
; Surface treatment
; Wastewater treatment
; Water absorption
; Draw solutions
; Forward osmosis
; Membrane bioreactor
; Microbial communities
; Tannery wastewater
; Effluents
; adenosine triphosphate
; ammonia
; ammonium sulfate
; environmental marker
; oxidoreductase
; proteinase
; triacylglycerol lipase
; bacterium
; biomass
; bioreactor
; fouling
; index method
; industrial waste
; membrane
; microbial community
; osmosis
; performance assessment
; salinity
; ultrafiltration
; wastewater
; wastewater treatment
; absorption
; Article
; Bacteroidetes
; biomass
; effluent
; enzyme activity
; hydrolysis
; leather industry
; membrane permeability
; microbial population dynamics
; nonhuman
; osmosis
; priority journal
; Proteobacteria
; salinity
; waste water
; Bacteria (microorganisms)
; Bacteroidetes
; Proteobacteria
英文摘要: Tannery wastewaters are difficult to treat biologically due to the high salinity and organic matter concentration. Conventional treatments, like sequential batch reactors (SBR) and membrane bioreactors (MBR), have showed settling problems, in the case of SBR, and ultrafiltration (UF) membrane fouling in the case of MBR, slowing their industrial application. In this work, the treatment of tannery wastewater with an osmotic membrane bioreactor (OMBR) is assessed. Forward osmosis (FO) membranes are characterized by a much lower fouling degree than UF membranes. The permeate passes through the membrane pores (practically only water by the high membrane rejection) from the feed solution to the draw solution, which is also an industrial wastewater (ammonia absorption effluent) in this work. Experiments were carried out at laboratory scale with a FO CTA-NW membrane from Hydration Technology Innovations (HTI). Tannery wastewater was treated by means of an OMBR using as DS an actual industrial wastewater mainly consisting of ammonium sulphate. The monitoring of the biological process was carried out with biological indicators like microbial hydrolytic enzymatic activities, dissolved and total adenosine triphosphate (ATP) in the mixed liquor and microbial population. Results indicated a limiting conductivity in the reactor of 35 mS cm−1 (on the 43th operation day), from which process was deteriorated. This process performance diminution was associated by a high decrease of the dehydrogenase activity and a sudden increase of the protease and lipase activities. The increase of the bacterial stress index also described appropriately the process performance. Regarding the relative abundance of bacterial phylotypes, 37 phyla were identified in the biomass. Proteobacteria were the most abundant (varying the relative abundance between 50.29% and 34.78%) during the first 34 days of operation. From this day on, Bacteroidetes were detected in a greater extent varying the relative abundance of this phylum between 27.20% and 40.45%. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112614
Appears in Collections: 气候减缓与适应
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作者单位: Instituto de Seguridad Industrial, Radiofísica y Medioambiental, Universitat Politècnica de València, Camino de Vera, s/n, Valencia, 46022, Spain; Instituto de Ingeniería del Agua y Medio Ambiente, Universitat Politècnica de València, Camino de Vera, s/n, Valencia, 46022, Spain; Depuración de Aguas del Mediterráneo (DAM), Avenida Benjamín Franklin, 21, Parque Tecnológico, Valencia, Paterna 46980, Spain
Recommended Citation:
Luján-Facundo M.J.,Fernández-Navarro J.,Alonso-Molina J.L.,et al. The role of salinity on the changes of the biomass characteristics and on the performance of an OMBR treating tannery wastewater[J]. Water Research,2018-01-01,142