Removal of Antibiotic-Resistant Bacteria and Antibiotic Resistance Genes Affected by Varying Degrees of Fouling on Anaerobic Microfiltration Membranes

被引:98
作者
Cheng, Hong [1 ]
Hong, Pei-Ying [1 ]
机构
[1] KAUST, WDRC, Div Biol & Environm Sci & Engn BESE, Thuwal 23955, Saudi Arabia
关键词
WASTE-WATER TREATMENT; NANOFILTRATION MEMBRANES; TRANSMEMBRANE PRESSURE; CONCENTRATION POLARIZATION; MICROBIAL INDICATORS; SURFACE PROPERTIES; TREATMENT PLANTS; REVERSE-OSMOSIS; SAUDI-ARABIA; CAKE LAYER;
D O I
10.1021/acs.est.7b03798
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
An anaerobic membrane bioreactor was retrofitted with polyvinylidene fluoride (PVDF) microfiltration membrane units, each of which was fouled to a different extent. The membranes with different degrees of fouling were evaluated for their efficiencies in removing three antibiotic resistant bacteria (ARB), namely, bla(NDM)-positive Escherichia coli PI-7, bla(NDM)is-positive Klebsiella pneumoniae L7, and blaoxA.48-positive E.coli UPEC-RIY-4, as well as their associated plasmid-borne antibiotic resistance genes (ARGs). The results showed that the log removal values (LRVs) of ARGs correlated positively with the extent of membrane fouling and ranged from 1.9 to 3.9. New membranes with a minimal foulant layer could remove more than 5 log units of ARB. However, as the membranes progressed to subcritical fouling, the LRVs of ARB decreased at increasing operating transmembrane pressures (TMPs). The LRV recovered back to 5 when the membrane was critically fouled, and the achieved LRV remained stable at different operating TMPs. Furthermore, characterization of the surface attributed the removal of both the ARB and ARGs to adsorption, which was facilitated by an increasing hydrophobicity and a decreasing surface potential as the membranes fouled. Our results indicate that both the TMP and the foulant layer synergistically affected ARB removal, but the foulant layer was the main factor that contributed to ARG removal.
引用
收藏
页码:12200 / 12209
页数:10
相关论文
共 54 条
[1]   Removal of bacterial contaminants and antibiotic resistance genes by conventional wastewater treatment processes in Saudi Arabia: Is the treated wastewater safe to reuse for agricultural irrigation? [J].
Al-Jassim, Nada ;
Ansari, Mohd Ikram ;
Harb, Moustapha ;
Hong, Pei-Ying .
WATER RESEARCH, 2015, 73 :277-290
[2]   Effect of transmembrane pressure on rejection of viruses by ultrafiltration membranes [J].
Arkhangelsky, Elizabeth ;
Gitis, Vitaly .
SEPARATION AND PURIFICATION TECHNOLOGY, 2008, 62 (03) :619-628
[3]   The effect of concentration polarization on the separation of volatile organic compounds from water by pervaporation [J].
Baker, RW ;
Wijmans, JG ;
Athayde, AL ;
Daniels, R ;
Ly, JH ;
Le, M .
JOURNAL OF MEMBRANE SCIENCE, 1997, 137 (1-2) :159-172
[4]   Antibiofilm effect enhanced by modification of 1,2,3-triazole and palladium nanoparticles on polysulfone membranes [J].
Cheng, Hong ;
Xie, Yihui ;
Villalobos, Luis Francisco ;
Song, Liyan ;
Peinemann, Klaus-Viktor ;
Nunes, Suzana ;
Hong, Pei-Ying .
SCIENTIFIC REPORTS, 2016, 6
[5]   Membrane filtration of natural organic matter: factors and mechanisms affecting rejection and flux decline with charged ultrafiltration (UF) membrane [J].
Cho, J ;
Amy, G ;
Pellegrino, J .
JOURNAL OF MEMBRANE SCIENCE, 2000, 164 (1-2) :89-110
[6]   Klebsiella pneumoniae type 3 pili facilitate adherence and biofilm formation on abiotic surfaces [J].
Di Martino, P ;
Cafferini, N ;
Joly, B ;
Darfeuille-Michaud, A .
RESEARCH IN MICROBIOLOGY, 2003, 154 (01) :9-16
[7]   Interaction Mechanism between Hydrophobic and Hydrophilic Surfaces: Using Polystyrene and Mica as a Model System [J].
Faghihnejad, Ali ;
Zeng, Hongbo .
LANGMUIR, 2013, 29 (40) :12443-12451
[8]   Nanoscale analysis of the effects of antibiotics and CX1 on a Pseudomonas aeruginosa multidrug- resistant strain [J].
Formosa, C. ;
Grare, M. ;
Jauvert, E. ;
Coutable, A. ;
Regnouf-de-Vains, J. B. ;
Mourer, M. ;
Duval, R. E. ;
Dague, E. .
SCIENTIFIC REPORTS, 2012, 2
[9]   Nanoscale effects of antibiotics on P. aeruginosa [J].
Formosa, Cecile ;
Grare, Marion ;
Duval, Raphael E. ;
Dague, Etienne .
NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE, 2012, 8 (01) :12-16
[10]   ISOTHERMAL TITRATION CALORIMETRY [J].
FREIRE, E ;
MAYORGA, OL ;
STRAUME, M .
ANALYTICAL CHEMISTRY, 1990, 62 (18) :A950-A959