Removal and inactivation of Cryptosporidium and microbial indicators by a quaternary ammonium chloride (QAC)-treated zeolite in pilot filters

被引：13
作者：
Abbaszadegan, M
Monteiro, P
Ouwens, RN
Ryu, H
Alum, A
机构：
[1] Arizona State Univ, Dept Civil & Environm Engn, Tempe, AZ 85287 USA
[2] Arizona State Univ, Natl Sci Fdn Water Qual Ctr, Tempe, AZ 85287 USA
[3] Univ Brasilia, Brasilia, DF, Brazil
[4] Wilson & Co, Phoenix, AZ USA
来源：
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING | 2006年 / 41卷 / 06期
基金：
美国国家科学基金会;
关键词：
QAC-treated zeolite filter media; antimicrobial capabilities;
D O I：
10.1080/10934520600623091
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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.
引用
收藏
页码：1201 / 1210
页数：10
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