环境保护科学2016，Vol.42Issue(4)：110-114,5.DOI:10.16803/j.cnki.issn.1004-6216.2016.04.023
零价铁与过硫酸盐异相芬顿降解活性艳橙X-GN
Effective Degradation of Reactive Brilliant Orange X-GN by Heterogeneous Fenton Reaction with Zero Valent Iron and Persulfate
摘要
Abstract
Heterogeneous Fenton like system was established by zero valent iron (ZVI) and persulfate to degrade an azo dye reactive brilliant orange (X-GN) with sulfate radicals generated in situ from ZVI and persulfate. The effects of initial pH, ZVI and persulfate dosage, and temperature on the degradation process were investigated. The results showed that an X-GN degradation efficiency of 92.6% was achieved after 60 min of reaction time with an initial X-GN concentration of 100 mg/L under typical o conditions ( ZVI of 0.5 g/L, persulfate of 1 mmol/L, pH of 7 and at 30 C). Degradation of X-GN was an acid driven process and a degradation efficiency of more than 90% was obtained as the initial pH was 9. The degradation efficiency of X-GN also increased at higher reaction temperature. The degradation of X-GN followed pseudo-first order kinetics and the apparent reaction rate constant-1 o k was 0.0513 min (at 30 C). UV-Vis spectra showed that N=N was destroyed during the reaction. Therefore, the combination of ZVI and persulfate could be taken as a promising technology for decolorization of dyeing wastewater.关键词
零价铁/过硫酸盐/异相芬顿/活性艳橙Key words
Zero Valent Iron/Persulfate/Heterogeneous Fenton Reaction/Reactive Brilliant Orange分类
资源环境引用本文复制引用
林影,梁好,刘传胜,吴锦华,李平..零价铁与过硫酸盐异相芬顿降解活性艳橙X-GN[J].环境保护科学,2016,42(4):110-114,5.基金项目
国家自然科学基金（41571302）；中央高校基本科研业务费资助项目（2015ZZ047）资助 （）
