TY - JOUR
T1 - Removal and inactivation of Cryptosporidium and microbial indicators by a quaternary ammonium chloride (QAC)-treated Zeolite in pilot filters
AU - Abbaszadegan, Morteza
AU - Monteiro, Patricia
AU - Ouwens, Rudolf
AU - Ryu, Hodon
AU - Alum, Absar
N1 - Funding Information:
This research was supported by Northern Filter Media International, Muscatine, Iowa, Coating Systems Laboratories, Inc., Chandler, Arizona, and the National Science Foundation Water Quality Center at Arizona State University.
PY - 2006/7/1
Y1 - 2006/7/1
N2 - A set of pilot filters packed with Zeolite filter media treated with a quaternary ammonium chloride (QAC) were evaluated to verify the proof of concept of their combined antimicrobial capabilities. Escherichia coli was removed and inactivated the most (2.83 log), followed by MS-2 (2.75 log), Klebsiella terriena (2.21 log), PRD-1 (1.95 log), Chlorella vulgaris (1.92 log), and Cryptosporidium parvum oocysts (1.78 log). Especially, inactivation of C. parvum oocysts (1.19 log) was higher than physical removal (0.54 log). The data suggest that QAC-treated Zeolite in the pilot filters has microbial inactivation capabilities and may have useful applications in other types of filter media.
AB - A set of pilot filters packed with Zeolite filter media treated with a quaternary ammonium chloride (QAC) were evaluated to verify the proof of concept of their combined antimicrobial capabilities. Escherichia coli was removed and inactivated the most (2.83 log), followed by MS-2 (2.75 log), Klebsiella terriena (2.21 log), PRD-1 (1.95 log), Chlorella vulgaris (1.92 log), and Cryptosporidium parvum oocysts (1.78 log). Especially, inactivation of C. parvum oocysts (1.19 log) was higher than physical removal (0.54 log). The data suggest that QAC-treated Zeolite in the pilot filters has microbial inactivation capabilities and may have useful applications in other types of filter media.
KW - Antimicrobial capabilities
KW - QAC-treated Zeolite filter media
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U2 - 10.1080/10934520600623091
DO - 10.1080/10934520600623091
M3 - Article
C2 - 16760096
AN - SCOPUS:33745149747
SN - 1093-4529
VL - 41
SP - 1201
EP - 1210
JO - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
JF - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
IS - 6
ER -