Abstract：Considering that the mechanism of disinfection-stressed protection effects of suspended particles on microbes remained unclear, this study investigated the chlorination-stressed protection effects of these particles on microbes in drinking water by analyzing microbial physiological characteristics and aggregation behaviors via a static experimental setup. The results showed that goethite dosage had a minor impact on the logarithmic inactivation rate on microbes in drinking water when the absence of chlorine. However, the presence of goethite stimulated microbial aggregation behaviors and the chlorine decay process, thus goethite playing a protective role when associating with chlorination stress, particularly at 0.5mg/L chlorine.
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