UV Irradiation in Turbid Starch Slurries
Author: Taylor, Denise
Source: Proceedings of the Water Environment Federation, WEFTEC 2010: Session 31 through Session 40 , pp. 2231-2235(5)
Publisher: Water Environment Federation
Abstract:Ultraviolet light disinfection can be an effective means of controlling microorganisms due to its ease of use, lack of chemical carryover, and decreased chemical hazard concerns. However, particles in industrial process waters can shield microorganisms and reduce the effectiveness of UV treatment. In this study, a modified mixing regime is investigated for its influence on UV disinfection effectiveness in turbid slurries. A new baffle design provides beneficial UV exposure in slurries of high starch solids. The mixing and pulse-like action increase initial disinfection rates. It also inactivates residual bacteria that unmodified treatment does not, in moderate starch loads up to 10% by weight. In all tested cases (up to 20% solids as starch), the static pulse mixer induces one to two log inactivation more than unmodified UV.
Document Type: Research article
Publication date: 2010-01-01
- Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
- Subscribe to this Title
- Membership Information
- About WEF Proceedings
- WEFTEC Conference Information
- ingentaconnect is not responsible for the content or availability of external websites