D-山梨醇生产废水中不同形态镍的分析及去除  

Analysis and Removement of Different Nickel ion Speciation in the Wastewater of D-sorbitol Production

作　　者：黄润均[1] 陈东莲[1] 黄增尉[2] 韦冬萍[2] 袁爱群[2] 

机构地区：[1]桂林理工大学南宁分校,广西南宁530001 [2]广西民族大学化学化工学院,广西南宁530006

出　　处：《广东化工》2017年第7期55-56,共2页Guangdong Chemical Industry

基　　金：2013广西教育厅项目(2013YB105)

摘　　要：采用破络剂+沉淀剂+捕集剂联合去除山梨醇生产废水中的镍。采用单因素实验考察破络剂加入量、破络反应时间、破络温度、捕集剂EM加入量等因素对废水中镍的去除率的影响,并通过正交实验获得最佳条件。结果表明:对去除率影响的大小依次为:捕集剂加入量>破络剂加入量>破络反应时间>破络温度。由正交试验选出的最佳实验条件为:破络剂加入量0.25 g/L、捕集剂加入量为25 mg/L、破络时间25 min、破络温度45℃。最佳条件下进行五次重复实验进行验证,平均去除率为99.36%。处理后废水中镍含量达到1 mg/L以下,达到国家排放标准。Nickel ion in the Wastewater of D-sorbitol production was removed by Combination of breaking complex agent ＋ precipitating agent ＋ trapping agent. The effect of breaking complex agent adding amount, breaking complex time, breaking complex temperature and metal capturing agent adding amount on removal rate was studied by singie-lhctor experiments, orthogonal experiment was used to obtain the optimization technical conditions, The results show that the three main influencing thctors are in the order as lbllows： metal capturing agent adding amount〉breaking complex agent adding amount〉breaking complex time〉 breaking complex temperature. The optimal technical condition is： metal capturing agent adding amount0.25 g/L, breaking complex agent adding amount25mg/L, breaking complex time 25 rain and breaking complex temperature 45 ℃. Under these conditions, the average removal ratel after reoeated experriment five times is 99.36 %. After treatment, the content of nickel in the waste water was below I mg/L, which reached the national discharge standard.

关 键 词：D-山梨醇 废水 镍 去除 

分 类 号：TQ320.4[化学工程—合成树脂塑料工业] TQ032