接枝改性木素对含镍废水的絮凝性能研究  

Study on Flocculation Performance of Modified Lignin to Ni^(2+) in Wastewater

作　　者：温咏兰[1] 张玉星[1] 

机构地区：[1]贵州工业职业技术学院,贵州贵阳550003

出　　处：《广州化工》2015年第15期124-125,247,共3页GuangZhou Chemical Industry

摘　　要：研究了木素磺酸钙和丙烯酰胺的接枝共聚物(LSAM)对含镍废水的絮凝性能及处理效果。同时考察了废水p H值对含镍废水去除效果的影响及镍离子的回收率。结果表明,p H值在p H 5.0~11.0时,Ni2+去除率>95%;在p H=7.0,LSAM的投加量为60 mg/L时,一定浊度下,对镍的去除率>98%;镍离子可以选用4 mol/L的硝酸进行回收,回收率最高可达到79.7%。s：Lignin-based flocculant was synthesized, the effect of flocculants compounded to remove nickel ions was studied.At the same time, the influence of the pH value on treatment results and the recovery of nickel ions were investigated.The results showed that when the pH value was 5.0~11.0, the removal rate of nickel was above 95%. When the pH value was 7 and the dose of LSAM was 60 mg/L, the removal rate of nickel was above 98%.When the concentration of HNO3 was 4 mol/L, the recovery rates of nickel was 79.7%.

关 键 词：木素磺酸钙 絮凝 含镍废水 回收 

分 类 号：TQ319[化学工程—高聚物工业]