电荷修饰滤器对乳胶珠、细菌、内毒素和病毒的捕获
Capture of latex beads, bacteria, endotoxin, and viruses by charge-modified filters.
作者信息
Hou K, Gerba C P, Goyal S M, Zerda K S
出版信息
Appl Environ Microbiol. 1980 Nov;40(5):892-6. doi: 10.1128/aem.40.5.892-896.1980.
Abstract
This report demonstrates how electropositive filters can be used to enhance the removal of microorganisms and other negatively charged particles from water. It was shown that electropositive depth filters were capable of adsorbing viruses and endotoxins many times smaller than the average pore size of the filter. Electronegative filters of similar porosity or electropositive filters that had been treated to destroy the positive charge were almost ineffective under similar conditions for the removal of viruses and small latex spheres. The results of this study indicate that electropositive filters are highly effective in the removal of a wide range of contaminants over a wide range of pH values and ionic conditions.
摘要
本报告展示了正电性过滤器如何用于增强从水中去除微生物和其他带负电荷颗粒的能力。结果表明，正电性深层过滤器能够吸附比过滤器平均孔径小很多倍的病毒和内毒素。孔隙率相似的负电性过滤器或经过处理以破坏正电荷的正电性过滤器在类似条件下对去除病毒和小乳胶球几乎无效。本研究结果表明，正电性过滤器在广泛的pH值和离子条件下对去除多种污染物非常有效。
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