1. Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
2. Metropolitan Water Reclamation District of Greater Chicago, Chicago, IL 60611, USA
3. Island Water Technologies, Charlottetown, Prince Edward Island, Canada
4. Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
5. Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32603, USA