DOI: 10.1016/j.watres.2018.01.001
Scopus记录号: 2-s2.0-85041421129
论文题名: Degradation of recalcitrant naphthenic acids from raw and ozonated oil sands process-affected waters by a semi-passive biofiltration process
作者: Zhang L. ; Zhang Y. ; Gamal El-Din M.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 133 起始页码: 310
结束页码: 318
语种: 英语
英文关键词: Biofiltration
; Metagenomic analysis
; Naphthenic acids
; Oil sands process-affected water
; Ozonation
Scopus关键词: Bacteria
; Biodegradation
; Biofilms
; Biofiltration
; Bioreactors
; Liquid chromatography
; Mass spectrometry
; Oil sands
; Organic acids
; Ozone
; Ozone water treatment
; Ozonization
; Polymerase chain reaction
; Sand
; Accelerated biodegradation
; Confocal laser scanning microscopy
; Metagenomic analysis
; Moving bed biofilm reactors
; Naphthenic acid
; Oil Sands Process-affected Waters
; Quantitative polymerase chain reaction
; Ultra performance liquid chromatography
; Biofilters
; carbon
; carboxylic acid
; naphthenic acid derivative
; ozone
; unclassified drug
; carboxylic acid
; naphthenic acid
; oxidizing agent
; bacterium
; biodegradation
; biofilm
; biofiltration
; bioreactor
; carboxylic acid
; degradation
; genomics
; microorganism
; oil sand
; ozonation
; pollutant removal
; water technology
; Actinobacteria
; Article
; bacterium
; Bacteroides
; biodegradation
; biofiltration
; Chlorobi
; Chloroflexi
; confocal laser scanning microscopy
; mass spectrometry
; metagenomics
; microbial community
; Microbulbifer
; Nitrospirae
; nonhuman
; ozonation
; Planctomycetes
; polymerase chain reaction
; priority journal
; Proteobacteria
; Pseudomonas
; Rhodococcus
; sand
; spirochete
; Synechococcus
; tar sand
; ultra performance liquid chromatography
; Verrucomicrobia
; water contamination
; biofilm
; bioreactor
; bioremediation
; chemistry
; filtration
; genetics
; metabolism
; microbiology
; oil and gas field
; procedures
; water management
; water pollutant
; Bacteria (microorganisms)
; Rhodococcus
; Bacteria
; Biodegradation, Environmental
; Biofilms
; Bioreactors
; Carboxylic Acids
; Filtration
; Oil and Gas Fields
; Oxidants
; Ozone
; Water Pollutants, Chemical
; Water Purification
英文摘要: In this study, a fixed-bed biofiltration system (biofilter) that utilized indigenous microorganisms was developed for the reclamation of oil sands process-affected water (OSPW). With the assistance of quantitative polymerase chain reaction (qPCR) and confocal laser scanning microscopy (CLSM), indigenous microorganisms from OSPW were able to attach to the surface of sand media and form biofilms. The number of total bacteria on the biofilter media reached a steady state (109/g) after 23 days of operation. Ultra Performance Liquid Chromatography/High Resolution Mass Spectrometry (UPLC/HRMS) analysis showed that 21.8% of the classical naphthenic acids (NAs) removal was achieved through the circulation of raw OSPW on the biofilter for 8 times (equivalent to a hydraulic retention time of 16 h). When ozonation with utilized ozone dose of 30 mg/L was applied as pretreatment, the classical NAs in the ozonated OSPW were removed by 89.3% with an accelerated biodegradation rate of 0.5 mg/L/h. Compared with other biofilm reactors such as moving bed biofilm reactor (MBBR), ozonation pretreatment could benefit the biodegradation of NAs in the biofilter more (classical NA removal: 89.3% vs. 34.4%), especially for those with high carbon number and cyclicity. The combined ozonation-biofiltration process could remove 92.7% of classical NAs from raw OSPW in 16 h. Although both ozonation and biofiltration alone did not show degradation of oxidized NAs from raw OSPW, the combined process led to a 52.9% and 42.6% removal for O3-NAs and O4-NAs, respectively, which were the dominant oxidized NA species in OSPW. Metagenomic sequencing analysis showed that Rhodococcus was the dominant bacterial genus on the sand media, which may play a crucial role during the NA biodegradation. With the advantage of high NA removal efficiency, the combined ozonation-biofiltration process is a promising approach for NA degradation and shows high potential to be scaled up for in-situ OSPW treatment. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112956
Appears in Collections: 气候减缓与适应
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作者单位: Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada; Department of Civil Engineering, New Mexico State University, Las Cruces, NM 88003, United States
Recommended Citation:
Zhang L.,Zhang Y.,Gamal El-Din M.. Degradation of recalcitrant naphthenic acids from raw and ozonated oil sands process-affected waters by a semi-passive biofiltration process[J]. Water Research,2018-01-01,133