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首页> 外文期刊>International journal of nuclear desalination >Evaluation Of The Efficiency Of Polysulfone Ultrafiltration Membrane-based Water Purifiers For Microbiological Decontamination
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Evaluation Of The Efficiency Of Polysulfone Ultrafiltration Membrane-based Water Purifiers For Microbiological Decontamination

机译：聚砜超滤膜净水器用于微生物净化的效率评估

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摘要

Indigenously developed polysulfone Ultrafiltration (UF) membrane-based domestic and industrial water purification units were evaluated for their ability to filter bacteria and viruses from water. Escherichia coli (10~5 cfu/ml) and P1 phage (10~6 pfu/ml) were filtered through a Domestic Water Purifier (DWP) (dead-end UF unit) and a large-scale spiral water purifier (cross-flow UF unit) and the filtrates were analysed for bacterial and phage counts. Both units were found to be efficient in the complete removal of E. coli and a 99.99% removal of the P1 phage was observed. Both the domestic and industrial water purifiers are highly efficient in the removal of bacteria and viruses. UF membranes were also characterised for Molecular Weight Cut-Off (MWCO) by the polyethylene glycol and polyethylene oxide methods, which showed that MWCO was 60-65 kDa. These MWCO results were further validated using the Bovine Serum Albumin (BS A) rejection behaviour of these membranes, which showed about 90% rejection. The technique involving the estimation of MWCO, coupled with the rejection characteristics of E. coli and P1 phage, provides an excellent tool to evaluate the efficiency of water purifiers based on UF membrane technology.
机译：评价了以本地开发的聚砜超滤（UF）膜为基础的家用和工业用水净化装置的能力，该装置可从水中过滤细菌和病毒。大肠杆菌（10〜5 cfu / ml）和P1噬菌体（10〜6 pfu / ml）通过家用净水器（DWP）（末端超滤单元）和大型螺旋净水器（交叉流）进行过滤UF单位）和滤液的细菌和噬菌体计数进行分析。发现两个单位均能有效完全去除大肠杆菌，并观察到99.99％的P1噬菌体去除率。家用和工业净水器都可以高效去除细菌和病毒。用聚乙二醇和聚环氧乙烷法对超滤膜的截留分子量（MWCO）进行了表征，结果表明MWCO为60-65 kDa。使用这些膜的牛血清白蛋白（BSA）排斥行为进一步证实了这些MWCO结果，该行为表现出约90％的排斥。涉及估算MWCO的技术，再加上大肠杆菌和P1噬菌体的排斥特性，为评估基于超滤膜技术的净水器效率提供了极好的工具。

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