本文报告了用三种大肠杆菌检验方法(即:食品法一步法及常规三步法)同时检验了五十个沼气池的中层出料液,试验表明:三种方法的结果无显著差异,但同一发酵结果,用查表法与用简易法表示却有显著差异,两法不能通用。并认为一步法比较简便、快速,结果同祥准确,建议推荐采用。 In this paper, we report the simultaneous detection of middle digestates in fifty biogas digesters using three E. coli test methods (ie one-step and conventional three-step). The results showed that there was no significant difference between the three methods The same fermentation results, using the look-up table method and the simple method that there are significant differences, the two methods can not be universal. And that the one-step method is relatively simple, fast, accurate results with the Xiang, it is recommended to recommend.