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多孔圆筒铸铁阳极电解制备高铁酸盐及其在处理有机模拟废水中的应用
引用本文:方熠,郑曦,陈日耀,陈震. 多孔圆筒铸铁阳极电解制备高铁酸盐及其在处理有机模拟废水中的应用[J]. 化工学报, 2006, 57(1): 151-154
作者姓名:方熠  郑曦  陈日耀  陈震
作者单位:福建师范大学化学与材料学院,福建 福州 350007
基金项目:福建省发改委科研项目 , 福建省教育厅科研项目
摘    要:引言 高铁酸盐是一种强氧化剂,可以氧化多种无机物和有机物,其被还原的产物有絮凝沉降作用,且铁元素无毒无害,可用作净水剂去除水体中的污染物[1,2].电解法[3]制备高铁酸盐是在强碱性电解质中,将牺牲铁阳极氧化成高铁酸盐,并用于处理水溶液中的污染物,操作简便,便于推广应用.本文通过改进的电解装置和选用合适的工艺条件,获得高浓度的高铁酸盐溶液,并提高了电解的电流效率.

关 键 词:高铁酸盐  圆筒铸铁阳极  电流效率  联苯胺  
文章编号:0438-1157(2006)01-0151-04
收稿时间:2005-02-01
修稿时间:2005-02-012005-08-08

Electrolysis-generated ferrate at porous cylindrical cast iron anode and its application to degradation of organic wastewater
FANG Yi,ZHENG Xi,CHEN Riyao,CHEN Zhen. Electrolysis-generated ferrate at porous cylindrical cast iron anode and its application to degradation of organic wastewater[J]. Journal of Chemical Industry and Engineering(China), 2006, 57(1): 151-154
Authors:FANG Yi  ZHENG Xi  CHEN Riyao  CHEN Zhen
Affiliation:School of Chemistry and Material Sciense , Fuj ian Normal University, Fuzhou 350007, Fujian , China
Abstract:Electrolysis-generated water treatment FeO2-4 was prepared in a diaphram cell with double cathodic chamber and porous cylindrical cast iron anode.The experiment result showed that current efficiency and FeO2-4 concentration were higher by using double cylinder cast iron anode.Optimum result was obtained at J=30 mA•cm-2,30℃,14 mol•L-1 NaOH.70 mmol•L-1 FeO2-4 was produced and current efficiency was 36.8% for 5.5 h electrolysis. The result of ferrate oxidative degradation of benzidine wastewater showed removal rate of CODCr about 85% and the final products were small molecule inorganic compounds.
Keywords:ferrate  porous cylindrical cast iron anode   current efficiency   benzidine
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