高锰酸钾脱色降解直接耐酸大红4BS的反应机理研究  

Study on the Reaction Mechanism of Decoloration and Degradation of Direct Scarlet 4BS by Potassium Permanganate

作　　者：马雪雨 唐玉朝[1] 伍昌年[1] 黄显怀[1] 王坤[1] 邵磊 陈姝婷 冯琪瑞 MA Xue-yu;TANG Yu-chao;WU Chang-nian;HUANG Xian-huai;WANG Kun;SHAO Lei;CHEN Shu-ting;FENG Qi-rui(Anhui Provincial Key Laboratory of Environmental Pollution Control and Waste Resource Utilization,Anhui Jianzhu University,Hefei,Anhui 230601,China)

机构地区：[1]安徽建筑大学,环境污染控制与废弃物资源化利用安徽省重点实验室,安徽合肥230601

出　　处：《环境监测管理与技术》2023年第5期55-58,共4页The Administration and Technique of Environmental Monitoring

基　　金：国家自然科学基金资助项目(No.51978003);安徽省高校自然科学研究基金资助项目(No.KJ2019JD10);安徽省高校重大自然科学研究基金资助项目(No.KJ2019ZD54)。

摘　　要：以高锰酸钾(KMnO_(4))为氧化剂,含有染料直接耐酸大红4BS(以下简称大红4BS)的溶液为模拟废水,研究KMnO_(4)对大红4BS的脱色机理,分析KMnO_(4)不同投加量对大红4BS脱色效果的影响。结果表明:当KMnO_(4)投加量为15 mg/L时,反应1 h脱色率可达95.3%;脱色机理主要是KMnO_(4)氧化及氧化过程中形成的二氧化锰(MnO_(2))对大红4BS吸附的共同作用。Using potassium permanganate(KMnO_(4))as oxidant and a solution containing dye Direct scarlet 4BS as simulated wastewater,the decolorization mechanism of KMnO_(4) on Direct scarlet 4BS and the influence of different dosages on the decolorization were studied.The results showed that when the dosage of KMnO_(4) was 15 mg/L and the decolorization rate reached 95.3% after 1 h of reaction.The decolorization mechanism was mainly the oxidation of KMnO_(4) and the adsorption of Direct scarlet 4BS by MnO_(2) produced in the oxidation process.

关 键 词：大红4BS 高锰酸钾 二氧化锰 反应机理 吸附 脱色 

分 类 号：X703[环境科学与工程—环境工程]