在预沉池中采用放养鲢鱼的生物操纵技术可高效、稳定地控制藻类数量,并对原水浊度、氨氮起到稳定作用,在高藻期还可降低原水CODMn、总磷浓度等。采用生物除藻技术,再联合常规处理工艺除藻,可以使藻类得到较彻底的去除。特别是对于以蓝藻为优势种的夏季原水,该联合技术的效果更为明显。 The biological manipulation technology of stocking silver carp in the pre-settling tank can control the quantity of algae efficiently and stably, stabilize the turbidity of the raw water and ammonia nitrogen, and reduce the CODMn and the total phosphorus concentration of the raw water in the high algae period. The use of biological algae removal technology, combined with conventional processing technology algae, algae can be more thoroughly removed. Especially for summer raw water, which is dominated by cyanobacteria, the effect of this combined technique is more obvious.