污泥龄对BBSNP工艺反硝化除磷脱氮效能的影响
China Water & Wastewater（2020）
Abstract
基于上海某污水处理厂的生产性试验装置,研究了污泥龄(SRT)对两级生物选择反硝化除磷脱氮(BBSNP)工艺反硝化除磷效能的影响.结果 表明,SRT对BBSNP工艺的反硝化除磷效能有着较大的影响.当将SRT从7d提高到15 d时,厌氧区的COD去除率由62.37％提高到80.32％;缺氧吸磷率均值由33.9％提高到77.9％,厌氧释磷倍数由3.11倍提高到4.13倍;总氮去除率由68.27％提高到74.05％,这表明系统内富集了大量的反硝化聚磷菌,表现出良好的反硝化除磷效果,提高了出水水质.
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