Removal properties of human enteric viruses in a pilot-scale membrane bioreactor (MBR) process

Water Research
Takayuki MiuraDaisuke Sano

Abstract

In order to evaluate removal properties of human enteric viruses from wastewater by a membrane bioreactor (MBR), influent, anoxic and oxic mixed liquor, and membrane effluent samples were collected in a pilot-scale anoxic-oxic MBR process for 16 months, and concentrations of enteroviruses, norovirus GII, and sapoviruses were determined by real-time PCR using murine norovirus as a process control. Mixed liquor samples were separated into liquid and solid phases by centrifugation, and viruses in the bulk solution and those associated with mixed liquor suspended solids (MLSS) were quantified. Enteroviruses, norovirus GII, and sapoviruses were detected in the influent throughout the sampling period (geometrical mean, 4.0, 3.1, and 4.4 log copies/mL, respectively). Enterovirus concentrations in the solid phase of mixed liquor were generally lower than those in the liquid phase, and the mean log reduction value between influent and anoxic mixed liquor was 0.40 log units. In contrast, norovirus GII and sapovirus concentrations in the solid phase were equal to or higher than those in the liquid phase, and higher log reduction values (1.3 and 1.1 log units, respectively) were observed between influent and anoxic mixed liquor. This sugge...Continue Reading

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Citations

Mar 18, 2016·Environment International·Daisuke SanoHiroyuki Katayama
Feb 19, 2017·Applied and Environmental Microbiology·Shinobu KazamaTatsuo Omura
Sep 24, 2018·Journal of Applied Microbiology·C García-AljaroF Lucena
Nov 6, 2015·Water Science and Technology : a Journal of the International Association on Water Pollution Research·T ItoD Sano
Jan 7, 2018·Applied and Environmental Microbiology·Miguel F VarelaJesús L Romalde
Dec 8, 2017·Food and Environmental Virology·Takayuki MiuraFrançoise S Le Guyader
Dec 19, 2018·Food and Environmental Virology·Takayuki MiuraMichihiro Akiba
Mar 14, 2019·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Mohan AmarasiriDaisuke Sano
Dec 8, 2020·Journal of Environmental Chemical Engineering·Bhavini Saawarn, Subrata Hait
Jan 3, 2020·International Journal of Food Microbiology·Danlei LiuDapeng Wang
Jan 23, 2017·Water Research·Sorina E EftimSharon P Nappier
Mar 30, 2021·Chemical Engineering Journal·Lotfi SellaouiZhuqi Chen
Aug 25, 2020·Process Safety and Environmental Protection : Transactions of the Institution of Chemical Engineers, Part B·Maria Cristina CollivignarelliGiorgio Bertanza

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