无菌型小型饮水机试验研究

Study on bacteria Free Type of Small Drinking Water Device

随着生活水平的提高,越来越多的家庭和办公室使用直饮水机。直饮水机通常通过活性炭或过滤纤维两种介质来去除自来水中的污染物以达到直饮的目的。在使用过程中,介质表面会生长大量细菌,造成生物学与感观的问题。采用超声波这一新型物理技术,可抑制过滤介质上的细菌生长。通过大量重复实验,发现超声波可稳定地抑制过滤纤维和活性炭两种吸附介质上生长的菌体甚至原生动物。此外,由于超声波强化介质的吸附作用,超声波与活性炭同时处理较活性炭吸附可以更好地去除自来水中有机物;不同超声波频率下的实验进一步验证了超声波技术对活性炭吸附的强化作用。

With the Hying standard enhanced, morn and more potable water machines are used in the office and households. These machines produce water for direct drinking by filtering the tap water with activated carbon or filtration fiber to remove the contaminants. During the filtering process, bacteria grow on the surface of the filtration medium and may cause biological and sensual pollution. In this paper, ultrasonic, a kind of new physical technology, is applied in the potable water machine to inhibit bacteria growth on the medium. The experimental results show that the growth of bacteria and protozoan are inhibited obviously and steadily by ultrasonic. Ultrasonic also can improve the ability of acrived carbon to eliminate the contaminants in the tap water.