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VERIFICATION OF HIGH-RATE DISINFECTION TECHNOLOGIES FOR WET-WEATHER FLOW APPLICATIONS
Citation:
Schenk, J., K. Smith, AND M K. Stinson*. VERIFICATION OF HIGH-RATE DISINFECTION TECHNOLOGIES FOR WET-WEATHER FLOW APPLICATIONS. Presented at WEF 2001 Collection Systems Odyssey: Integrating O&M and Wet Weather Solutions, Bellevue, WA, July 08 - 11, 2001.
Impact/Purpose:
To inform the public.
Description:
This paper describes the critical components of the USEPA's Environmental Technology Verification Program for two specific technologies categories: ultraviolet disinfection technologies for treating combined sewer overflow (CSO) and sanitary sewer overflow (SSO), and; and mechanical induction mixers for dispersion of chemical disinfectants in wet-weather flows (WWF). This paper describes the critical components of the STV verification of ultraviolet disinfection technologies for treating combined sewer overflows and sanitary sewer overflows and of mechanical induction mixers for dispersion of chemical disinfectants in WWFs. This paper also describes the stakeholder-based process employed by the WWF Pilot to develop generic Verification Protocols and site-specific Verification test plans for these technologies. It discusses the challenges associated with developing protocols that can be applied to multiple vendors' products at one or more test sites. The WWF Pilot seeks to balance the desire for comprehensive testing that fully characterizes equipment performance under a variety of water quality and facility conditions against the need to keep testing costs reasonable to attract interest among technology vendors. Testing of each technology calls for using, at least in part, simulated WWFs in a laboratory or field setting. The benefits of using simulated flows are described, as are the potential limitations associated with applying the data to actual wet weather collection systems. Final Verification Protocols and the results of the initial verification efforts in each category will be discussed.