Inactivation of bacteriophage MS2 by potassium ferrate(VI)

ENVR 268

Lanhua Hu, lhu2@uiuc.edu1, Martin A. Page, mapage@uiuc.edu2, Benito J. Mariņas, marinas@uiuc.edu1, and Timothy J. Strathmann, strthmnn@uiuc.edu1. (1) Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 205 North Mathews Avenue, Urbana, IL 61801, (2) Department of Civil and Environmental Engineering & Center of Advanced Materials for the Purification of Water with Systems, University of Illinois at Urbana-Champaign, Urbana, IL 61801
Growing concerns about chlorine disinfection by-products (DBPs) have led to increased interest in the development of alternative disinfection processes. With its strong oxidizing potential and benign ferric oxide reduction products, potassium ferrate(VI) is promising for use as an alternative disinfectant. Previous studies have shown that ferrate(VI) is effective in inactivating several types of microorganisms, including f2 virus, coliphage Qβ and E. coli. This study examines the ferrate(VI) inactivation of bacteriophage MS2, a common surrogate for viral pathogens found in drinking water. Results demonstrate that ferrate(VI) is an effective disinfectant for MS2. The CT value required for 99% removal of MS2 with ferrate was ~2 mg-min/L as Fe at pH 7 and 25 degrees Celsius. The effects of pH, temperature, ferrate concentration and other relevant parameters on the inactivation performance will be described and a viral inactivation mechanism will be discussed.
 

Advances in Drinking Water Disinfection and Disinfection Byproduct Management
6:00 PM-8:00 PM, Wednesday, April 9, 2008 Morial Convention Center -- Hall A, Poster

Division of Environmental Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008