高炉渣非均相类Fenton降解亚甲基蓝废水  

Degradation of methylene blue wastewater by blast furnace slag heterogeneous fenton-like reaction

作　　者：梁鸿霞[1] 李涛[1] LIANG Hongxia;LI Tao(Panzhihua University,Panzhihua 617000,Sichuan,China)

机构地区：[1]攀枝花学院,四川攀枝花617000

出　　处：《四川冶金》2024年第1期13-17,共5页Sichuan Metallurgy

基　　金：四川省重点实验室项目,项目名称:改性高炉渣吸附重金属离子及水泥掺和固化性能研究(SC-FQWLY-2021-Y-04);项目名称:碳还原钛铁矿的工艺研究(2021-FTGC-YB-13);校级培育项目,项目名称:钒钛磁铁矿催化过一硫酸盐降解实验室高浓度有机废水的研究(14)。

摘　　要：本文以高炉渣为催化剂,通过非均相类Fenton的方法降解模拟亚甲基蓝废水,在有无光照的条件下,考察了高炉渣用量、H_(2)O_(2)用量、pH、反应时间等因素对模拟废水的色度及COD去除率的影响。实验证明:有光照条件下的去除效果均优于无光照,光照条件下该体系最佳条件为:pH=3,高炉渣用量为0.1 g/100 mL,H_(2)O_(2)(质量分数30%)为0.2 mL/100 mL,反应时间2 h,亚甲基蓝废水脱色率及COD去除率均达到100%。动力学研究表明:有光照条件下反应速率大于无光照条件,二者反应都更符合二级动力学模型。In this paper,the simulated methylene blue wastewater was degraded by the method of heterogeneous Fenton using the blast furnace slag as catalyst.Under the condition of illumination,the influence of the amount of blast furnace slag,the amount of H_(2)O_(2),pH,reaction time and other factors on the chromaticity of the simulated wastewater and the removal rate of COD were investigated.The experimental results show that the removal efficiency under light condition is better than that without light.Under light condition,the optimal conditions of the system are as follows:pH=3,the amount of blast furnace slag is 0.1 g/100 mL,H_(2)O_(2)(mass fraction 30%)is 0.2 mL/100 mL,and the reaction time is 2 h.The decolorization rate of methylene blue wastewater and the removal rate of COD can reach 100%.The kinetics study shows that the reaction rate under illumination condition is higher than that without illumination condition,and both reaction rates are more consistent with the quasi-second-order kinetics model.

关 键 词：非均相类Fenton 高炉渣 亚甲基蓝 

分 类 号：X703.1[环境科学与工程—环境工程]