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Description: Validating Virus and Protozoa Removal and Surrogates of a Full-Scale Flat Sheet...
Validating Virus and Protozoa Removal and Surrogates of a Full-Scale Flat Sheet Membrane Bioreactor
Abstract
Challenge testing has been conducted utilizing a membrane bioreactor (MBR), equipped with flat-sheet microfiltration (MF) membranes. The challenge testing determined the MBR’s removal of pathogens and surrogates; pathogen-removal is expressed as log reduction values (LRVs). To date, average LRVs in excess of 5, 3, and 3 have been achieved for Giardia, Cryptosporidium, and viruses, respectively. The California Division of Drinking Water (DDW) requires LRVs of 10, 10, 12 for Giardia, Cryptosporidium, and viruses across indirect potable reuse (IPR) trains. IPR trains conventionally employ MF, reverse osmosis (RO) and ultraviolet advanced oxidation (UVAOP) to treat secondary or tertiary treated wastewater to a high quality prior to an environmental buffer and subsequent reuse. The data from this study demonstrates that MBRs equipped with Kubota membranes can replace the conventional wastewater treatment and MF in a conventional IPR treatment train and meet the LRV requirement for Giardia, Cryptosporidium, and viruses.
Challenge testing has been conducted utilizing a membrane bioreactor (MBR), equipped with flat-sheet microfiltration (MF) membranes. The challenge testing determined the MBR’s removal of pathogens and surrogates; pathogen-removal is expressed as log reduction values (LRVs). To date, average LRVs in excess of 5, 3, and 3 have been achieved for Giardia, Cryptosporidium, and viruses, respectively. The California Division of Drinking Water (DDW) requires LRVs of 10, 10, 12 for Giardia, Cryptosporidium, and viruses across indirect potable reuse (IPR) trains. IPR trains conventionally employ MF, reverse osmosis (RO) and ultraviolet advanced oxidation (UVAOP) to treat secondary or tertiary treated wastewater to a high quality prior to an environmental buffer and subsequent reuse. The data from this study demonstrates that MBRs equipped with Kubota membranes can replace the conventional wastewater treatment and MF in a conventional IPR treatment train and meet the LRV requirement for Giardia, Cryptosporidium, and viruses.
SpeakerFontaine, Nicola
Presentation time
14:50:00
15:10:00
Session time
13:30:00
15:30:00
SessionMBR for Water Reuse: Giving Credit Where Credit is Deserved
Session number227
TopicWater Reuse and Reclamation
TopicWater Reuse and Reclamation
Author(s)
A. SalvesonL. MorrisN. FontaineA.BranchC. McBrideS. ModaressiH. Kuge
Author(s)A. Salveson3; L. Morris2; N. Fontaine1; A.Branch3; C. McBride4; S. Modaressi5; H. Kuge5;
Author affiliation(s)Carollo Engineers, Sacramento CA1; Kubota Membrane USA, OH2; Carollo Engineers, Walnut Creek CA3; Nevada County Sanitation4; Kubota Membrane USA Corp.5; Carollo Engineers, AZ6
SourceProceedings of the Water Environment Federation
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Oct 2020
DOI10.2175/193864718825157807
Volume / Issue
Content sourceWEFTEC
Copyright2020
Word count15

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