Improvement of solid-liquid separation and nutrient removal in wastewater treatment plant by controlling filamentous bacteria

在活性污泥系统中经常发现属于氯氟菌门的丝状细菌，它们的存在严重影响了二级澄清池的液固分离。在城市污水处理厂，特别是在夏季，这些丝状氯霉素的水平与生物质污泥体积指数相关。同时，设计了一种竞争探针，用于FISH实验中丝状氯霉素的精确鉴定。研制了一种亲水性聚四氟乙烯膜，用于活性污泥的液固分离。

Filamentous bacteria belonging to the phylum Chloroflexi were frequently identified in activated sludge systems, where their presence seriously compromised liquid/solid phase separation in the secondary clarifiers. In municipal wastewater treatment plants, particularly in summer, levels of these filamentous Chloroflexi correlated with biomass sludge volume index. Also, a competitor probe was designed for the precise identification of filamentous Chloroflexi in FISH experiment. A hydrophilic polytetrafluoroethylene membrane was developed to allow effective liquid/solid phase separation of activated sludge.