

Author: Fu Tao de Silva Viraj
Publisher: Water Environment Federation
ISSN: 1938-6478
Source: Proceedings of the Water Environment Federation, Vol.2006, Iss.10, 2006-01, pp. : 2954-2959
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Abstract
This paper will compare alternative wastewater disinfection technologies based on the security vulnerability and the production of disinfection by-products while considering the effectiveness, reliability and cost of each technology. Increasing public attention and tighter regulation on DBPs, along with perception of security vulnerability on the existing chlorination systems, require more comprehensive evaluation of wastewater disinfection systems when designing for a new facility or upgrading an existing plant.Six disinfection technologies are evaluated for their tendencies to form DBPs and safety and security levels: chlorine gas, hypochlorite, chlorine dioxide, chloramines, ozone and UV. Their advantages and disadvantages are discussed. The evaluation process should be prioritized with higher priority given to public health, security/safety and cost than other aspects.
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