生物接触氧化/气浮、生物滤地/沉淀处理地表水比较

为筛选出合适的滴水湖补充水的处理工艺,开展了"生物接触氧化+气浮"(工艺1)和"生物滤池+沉淀"(工艺2)两种组合工艺处理地表源水的中试研究(规模为20 m3/h).结果表明,生物接触氧化池对藻类、叶绿素a和氨氮的去除效果比生物滤池好,但二者对浊度、总磷、CODMn的去除效果相差不大;工艺1去除浊度、藻类、叶绿素a、总磷、氨氮和CODMn的效果较工艺2好,且对污染物的去除效果受混凝剂投加量的影响较小.

Comparative Research on Treatment of Surface Water by Biological Contact Oxidation/Air Flotation and Biological Filter/Sedimentation Process

To select suitable supplementary water treatment process for Dishui Lake,pilot-scale test using biological contact oxidation/air flotation process and biological filter/inclined-tube sedimentation process with influx of 20 m~3/h to treat surface water was carried out.The results show that the biological contact oxidation,whose efficiency in the removing of turbidity,TP and COD_(Mn) is similar to biological filter's,has advantage over biological filter in the removing of algae,chlorophyll-a and NH_3-N.Biological contact oxidation/air flotation process has advantage over biological filter/inclined-tube sedimentation process in the removing of turbidity,algae,chlorophyll-a,TP,NH_3-N and COD_(Mn).In addition,the effect of flocculation agent dosage on the biological contact oxidation /air flotation process is relatively less.