Full-Scale Design Challenges for the James River Treatment Plant Ifas Improvements Project: Using a Demonstration Scale Project to Optimize Final Design

Eighteen months of operation and close monitoring of a nominal 2 mgd demonstration scale IFAS study helped to expose a number of practical considerations for IFAS applications. These are important aspects of IFAS for utilities and consultants to consider when evaluating the potential efficacy of this maturing treatment technology as a plant upgrade option, or when optimizing the design of an IFAS system. The outcomes from this demonstration scale project are presented as two papers; the Evaluation of Nitrification Kinetics for a 2.0 mgd IFAS Process Demonstration (Session 2-Thomas), and this paper. The former focuses indepth on the kinetics and research, whereas this paper focuses on the applied practical impact of the Study and how the information was used to refine the final design of the IFAS-based nitrogen removal process for the James River Treatment Plant.