不同材质净水器对细菌去除功能的评价

Assessment of Removal Efficiency of Bacteria by Water Purifiers Using Different Filter Materials

目的了解市场销售的净水器对细菌的去除功能 ,评价不同材质净水器除菌效果。方法按照国家标准方法检测了7类市售净水器对细菌的去除功能。结果除单一材质的活性炭类净水器外 ,其余净水器在额定产水量内除菌效果均符合要求。结论不同材质的净水器除菌效果不同 ,单一材质净水器除菌效果较差 ,且与产水量成反比 ;

Objective To assess the removal efficiency of bacteria by water purifiers using different purifying materials. Methods The bacterial removal effectiveness of 7 types of commercially available water purifiers was tested using the National Standard Methods. Results Apart from one type using a single activated-carbon filtering material, the bacteria removal effectiveness of the other 6 types of water purifiers met the requirements of water purification device according to the rated treated-water-capacity conditions. Conclusion The removal efficiency of bacteria by water purifiers made from different filtering materials was different. Bacteria elimination effectiveness of a single-filtering material was lower and it is inversely proportional to its water-treating capacity. Water purifiers using multiple-purifying materials gave better removal efficiency of bacteria.