Mechanisms of virus removal from secondary wastewater effluent by low pressure membrane filtration

Haiou Huang, Thayer A. Young, Kellogg J. Schwab, Joseph G. Jacangelo

Research output: Contribution to journalArticlepeer-review

Abstract

As available drinking water supplies are increasingly strained, use of low pressure membranes (LPMs. 11Low pressure membranes (LPMs).) for wastewater reuse has become more widespread. Control of viruses in reclaimed water is critical to the protection of public health. The interaction between viruses, water chemistry and membrane properties plays an important role in the organism's removal, especially when its size is smaller than the size of reported membrane pores. Using MS2 bacteriophage as an indicator organism, the log removal value (LRV. 22Log removal value (LRV).) of the virus in waters containing secondary effluent organic matter increased with filtration time and concentration of high molecular weight organic foulants. The LRV increased from 2.1 to 3.0 for high fouling water, while removal in low fouling water ranged from 0.8 to 1.7. In comparison, a LRV of 1.0 was achieved in model water prepared to simulate a non-fouling condition. Addition of equal ionic strength of either sodium or calcium to model water reduced the LRV from 2.5 to 1.6 for sodium and to 0.9 for calcium. Mechanisms are proposed to explain the complexity of the observed membrane virus exclusion. The data in this study show that the use of pretreatment to reduce membrane fouling may ultimately impair virus removal efficiency.

Original languageEnglish (US)
Pages (from-to)1-8
Number of pages8
JournalJournal of Membrane Science
Volume409-410
DOIs
StatePublished - Aug 1 2012

Keywords

  • Disinfection
  • Effluent organic matter
  • Low pressure membrane
  • Membrane fouling
  • Pretreatment
  • Virus removal

ASJC Scopus subject areas

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Fingerprint

Dive into the research topics of 'Mechanisms of virus removal from secondary wastewater effluent by low pressure membrane filtration'. Together they form a unique fingerprint.

Cite this