Infectious risk assessment of reclaimed water by UF membrane treatment process focusing attention on norovirus | Zendy

Nobuhito Yasui | Zendy; Mamoru Suwa | Zendy; Mizuhiko Minamiyama | Zendy

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Infectious risk assessment of reclaimed water by UF membrane treatment process focusing attention on norovirus

Author(s) -

Nobuhito Yasui,

Mamoru Suwa,

Mizuhiko Minamiyama

Publication year - 2017

Publication title -

water science and technology water supply

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.318

H-Index - 39

eISSN - 1607-0798

pISSN - 1606-9749

DOI - 10.2166/ws.2017.114

Subject(s) - reclaimed water , reverse osmosis , ultrafiltration (renal) , environmental science , membrane , nanofiltration , membrane fouling , irrigation , water treatment , pulp and paper industry , waste management , chromatography , chemistry , environmental engineering , fouling , wastewater , engineering , biology , agronomy , biochemistry

The aim of this study was to propose a risk assessment method for infectious diseases, using reclaimed water as a case study. To evaluate the infectious risk of norovirus (NoV) in various applications of the reclaimed water, five types of ultrafiltration (UF) membrane treatments were considered: (1) coagulation with low pH + UF membrane process, (2) UF membrane process alone, (3) UF + ultraviolet (UV) irradiation process, (4) UF + nanofiltration (NF) membrane process, and (5) UF + reverse osmosis (RO) membrane process. These treatments were used in a pilot plant and the NoV concentration after each treatment process was studied over the long term (2010–2014). Infectious risk was described using disability-adjusted life-year (DALY) when the reclaimed water was applied for agricultural irrigation, landscape irrigation, recreational enhancement, and toilet and urinal flushing. The results show that reclaimed water could be considered acceptable for recreational enhancement by adding a UV, an NF membrane, or an RO membrane treatment to the UF membrane treatment process.

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