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Water Sci Technol. 2017 Dec;76(11-12):2941-2948. doi: 10.2166/wst.2017.466.

Evaluating membrane performance in recycled water treatment plants for assets replacement strategy.

Author information

1
South Australian Water Corporation, 250 Victoria Square, Adelaide SA 5000, Australia E-mail: petra.reeve@sawater.com.au.
2
Suez, CIRSEE, 38 rue du président Wilson, 78230 Le Pecq, France.
3
Allwater, Adelaide Services Alliance, Adelaide SA 5000, Australia.

Abstract

Membranes are an important barrier used in recycled water treatment plants for pathogen removal. Understanding performance over operational life is important to inform membrane replacement. In this study, full scale virus challenge testing was conducted on newly commissioned membranes to validate virus log removal values for accreditation. After six years of operation, the membrane integrity was repeated to ensure compliance with the state regulatory health authority and gain an understanding of the asset's condition. Membrane performance was assessed using a combination of complementary tests including membrane autopsy and chemical tolerance testing to assess individual modules and selected membrane fibres, followed by a full scale virus challenge for whole of unit assessment. The results demonstrated that the aged membrane fibres were intact and had not been affected by long-term exposure to chlorine, which provides valuable information for membrane asset replacement strategies.

PMID:
29210681
PMCID:
wst_2017_466
DOI:
10.2166/wst.2017.466
[Indexed for MEDLINE]

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