摘要
针对西北村镇集雨窖水含浊低温微污染的水质特点,采用粉末活性炭强化PAC混凝处理。考察了粉末活性炭对有机物的去除效果并将其与混凝剂PAC单独投加进行对比,研究其强化混凝效果。试验结果表明:在PAC的最佳投加量为70mg/L,混合搅拌强度300r/min,搅拌0.5min,絮凝搅拌强度60r/min,絮凝20min,静沉15min的条件下,经活性炭在投加混凝剂后3min投加,投加量为10mg/L时,浊度和CODMn的去除率比常规混凝提高12%和15.3%,具有明显的增强混凝效果的作用。
Based on the turbidity,lower temperater and micropolluted of cellar water in towns ,using powdered activated carbon combined with for enhanced coagulation. The effect of powdered activated carbon to remove organic matter comparing them with coagulant PAC adding at separate are investigatel, the effect of their enhanced coagulation are studied. The result shows ： under the condtion PAC dosage 70 mg/L, the mixed - stirring rate 300 r/min, the stirring time 0.5 min, the flocculation - stirring rate 60 r/min, the stirring time 20 min, the settling time 15 min, by activated carbon dosage in 3 min after adding coagulant, the removal rate of turbidity and CODMn are increased 12% and 15.3% compared with conventional coagulation, the experiment also proved that there have synergies between them.
出处
《河南化工》
CAS
2011年第15期29-32,共4页
Henan Chemical Industry
基金
十一五国家科技支撑计划(2006BAJ08B08-03)
国家水体污染控制及治理科技重大专项(2008ZX074525-005)
