This paper made a study of the variety regulation of pathogens in the activated sludge through biological fermentation using Aspergillus niger as zymophyte.

采用黑曲霉为发酵剂活性污泥进行公害处理并各种病原菌变化进行监测。结果表明病原菌总量在发酵过中呈"马鞍型"变化。