投加三氯化铁对活性污泥系统的影响试验研究

由于氮、磷去除过程复杂，单纯地依靠生物法很难实现高效稳定的脱氮除磷效果。近年来向生物处理单元内投加化学混凝剂来强化去除污染物受到了污水处理界的广泛关注。本文研究了向SBR系统中投加混凝剂三氯化铁对活性污泥系统的影响。试验结果表明：投加三氯化铁辅助除磷效果较好，但对去除COD和氮无明显的强化作用，且随投加期延长，还出现不利影响。PLFAs法测定结果说明：污泥微生物群落的总生物量有所减少，但微生物群落结构基本没变化。

Experimental Study on the Influences of Feeding FeCl3 into Bioreactor on Activated Sludge System

Problems will inevitably arise because the different function microbes grow in the same system in the biological phosphorus and nitrogen removal process.And these problems make it hard to synchronously remove phosphorus and nitrogen effectively by the biological treatment process alone.In recent years feeding coagulant into the bioreactor to enhance pollutant removal receives extensive concern in sewage disposal circle.The influences of feeding FeCl3 into the SBR reactor on activated sludge system were rese...