2006•Journal of University of Science and Technology BeijingRequires access
Study on psychrophilic bacteria in ecological beds for sludge
Wang Li
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Abstract
In the winter, the operating efficiency of ecological beds is not satisfied. Four psychrophilic bacteria were cultivated and separated, and their physiological characteristics were tested. The experimental result shows that the growth rate of the mixed psychrophilic bacteria can reach to 0.058 h~(-1), but that of the mesophilic bacteria is zero. The operating efficiency was greatly improved after adding some psychrophilic bacteria, and the removal ratio of Zn is 25 times than that adding no psychrophilic bacteria.