微波加热对自来水杀菌效果的实验分析

为明确微波加热对自来水杀菌的高效性,本实验采用微波炉对一定量的自来水进行了加热杀菌处理,并对微波杀菌效果达到国标时自来水体积与加热时间关系进行了分析。结果表明:微波加热实验组的杀菌效果达到国标(GB19298-2003)时所需的时间及所需的温度明显低于电炉加热对照组;实验组和对照组在水温为35.0℃时比初温13.1℃时含菌量高;实验组和对照组杀菌效果达到国标时,加热时间与水的体积成线性关系。上述结果表明,相比传统热杀菌,微波杀菌具有稳定的高效性,为饮用自来水微波炉杀菌方法提供了参考。

The Experimental Analysis of the Tap Water Sterilized by the Microwave Oven

In order to be clear about the microwave heating to the tap water sterilization non-thermal reaction and highly effectiveness, the paper adopt the microwave to sterilize the certain volume of tap water, And analyzed the relationship between volume of tap water and heating time when the sterilization effect reach national standard. The results show that the time and temperature needed by microwave heating bactericidal effect to reach the national standard （GB19298 -2003 ） are less and lower than those in the control group respectively; As the two groups, the bacteria in water when the temperature at 35.0 ℃ are more than in the initial temperature at 13.1 ℃the sterilized time and the water volume becomes the linear relationship when the bactericidal effect of both groups up to the Chinese standard. This proved those features that the highly effective and biological effective of microwave sterilization. Compared with traditional sterilization, it offered the experiment support to the method of microwave oven sterilization to the GB limited bacterium which tap water contains.