摘要
测定了在陶基二氧化铅电极上氧和氰的过电位及析出电位,对二氧化铅阳极电解除氰的电解参数进行了研究.用该法处理含氰浓度5×10-2%~3%的废水后,残留CN-离子浓度小于5×10-5%,电解的电流效率比用石墨阳极电解提高了2倍左右.
In this paper,a method of electrolytic oxidating CN- from waste water,in which plumbic dioxide electrode is used as electrolytic anode,is discussed.The anodic overpotentials of cyanide and oxygen on plumbic dioxide eloctrode were determined,and the electrolytic parameters were also studied.The examples of 5×10-3% to 0.3% waste water containing cyanide were treated by this method.The resutt showed that the residue concentration of CN-was less than 5×10-4%,and the electrolytic current efficiency was about as three times as the general method using plumbago electrode.
出处
《湘潭大学自然科学学报》
CAS
CSCD
1994年第1期77-81,共5页
Natural Science Journal of Xiangtan University
关键词
废水
电解
二氧化铅阳极
氰
cyanide waste water,electrolysis,plumbic dioxide electrode