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Evaluation of an environmentally sustainable UV-assisted water treatment system for the removal of Bacillus globigii spores in water
- Source :
- Water Supply. 18:968-975
- Publication Year :
- 2017
- Publisher :
- IWA Publishing, 2017.
-
Abstract
- Development of greener water treatment technologies is important for the production of safe drinking water and water security applications, such as decontamination. Chlorine assisted disinfection is common and economical, but can generate disinfection byproducts (DBPs) that may be of health concern. DBPs are formed due to the reaction of chlorine with naturally occurring organic and inorganic substances in water. Currently, various innovative technologies are being developed as alternative approaches for preventing DBPs during water treatment. In this study, we evaluated the effectiveness of a novel combination of high efficiency flow filtration and UV disinfection treatment system for the removal of Bacillus globigii (B. globigii) spores in water. The filtration system consists of a charged membrane filter (CMF) that not only helps to remove suspended particles but also reduces the impact of other impurities including bio organisms. In order to get most performance details, the CMF was evaluated at clean, half-life, and end of life (EOL) conditions along with 100% UV transmittance (UVT). In addition, the effectiveness of the UV system was evaluated as a stand alone system at 100% and 70% EOL intensity. The study was conducted at the US EPA's Test and Evaluation (T&E) Facility in Cincinnati, OH, using B. globigii, a surrogate for B. anthracis spores. This non-chemical environmentally-friendly CMF/UV combination system and the stand alone UV unit showed greater than 6.0 log removal of B. globigii during the tests.
- Subjects :
- 0301 basic medicine
Treatment system
Waste management
fungi
030106 microbiology
Water treatment system
chemistry.chemical_element
Human decontamination
010501 environmental sciences
Bacillus globigii
01 natural sciences
Article
Spore
law.invention
03 medical and health sciences
chemistry
law
Chlorine
Water treatment
Filtration
0105 earth and related environmental sciences
Water Science and Technology
Subjects
Details
- ISSN :
- 16070798 and 16069749
- Volume :
- 18
- Database :
- OpenAIRE
- Journal :
- Water Supply
- Accession number :
- edsair.doi.dedup.....0ec7488a9ea022a5f821f400a988c008