摘要
采用铁炭微电解催化还原法处理某铜冶炼厂废水,讨论了影响去除效果的各种因素,用电镜扫描和能谱(SEM与EDS)观察了反应后的铁炭表面。结果表明,在初始pH为3、100 mL废水中加入铁炭总量5 g、铁炭质量比为1:1、停留时间30 min时,处理效果最佳,此时Cu2+、Pb2+、Zn2+的去除率分别达到95.6%、91.8%、70.9%;铁屑表面吸附了大量的铜;活性炭表面元素成分复杂,主要为O和Fe,吸附不是活性炭去除重金属的主要方法。
The experiment using carbon micro electrolysis catalytic reduction of a copper smelter in Yunnan wastewater treatment, and the parameters that affected the efficiencies of the wastewater treatment had been discussed, The results indicated that the optimal experimental conditions were initial pH 3, the total amount of iron and carbon 5 g/0.1 L, iron carbon mass ratio of 1, the reaction time was 30 rain, the removal rate of the Cu^2+, Pb^2+, Zn^2+ was 95.61%, 91.8%, 70.9%. Scanning electron microscopy and energy-dispersive spectrometry (SEM and EDS) of the reaction of iron and carbon surface, analyzing the surface morphology and composition.
出处
《水处理技术》
CAS
CSCD
北大核心
2011年第3期100-104,共5页
Technology of Water Treatment
基金
国家大学生创新性实验计划项目(091067424)
昆明理工大学分析测试基金(2009-079)
关键词
铜冶炼废水
重金属离子
铁炭微电解
反应机理
copper smelting waste water
heavy metals
Fe-C micro-electrolysis
reaction mechanism