Abbaszadegan Morteza, Monteiro Patricia, Ouwens Rudolf N, Ryu Hodon, Alum Absar
Department of Civil and Environmental Engineering, Arizona State University, Tempe, 85287-5306,USA.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2006;41(6):1201-10. doi: 10.1080/10934520600623091.
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.
对一组填充有经季铵盐（QAC）处理的沸石过滤介质的试验过滤器进行了评估，以验证其抗菌综合能力的概念验证。大肠杆菌的去除和灭活效果最佳（2.83个对数级），其次是MS-2（2.75个对数级）、土生克雷伯菌（2.21个对数级）、PRD-1（1.95个对数级）、普通小球藻（1.92个对数级）和微小隐孢子虫卵囊（1.78个对数级）。特别是，微小隐孢子虫卵囊的灭活效果（1.19个对数级）高于物理去除效果（0.54个对数级）。数据表明，试验过滤器中经QAC处理的沸石具有微生物灭活能力，可能在其他类型的过滤介质中有实用价值。
