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.
作者
马雪雨
唐玉朝
伍昌年
黄显怀
王坤
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)
出处
《环境监测管理与技术》
CSCD
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)。
关键词
大红4BS
高锰酸钾
二氧化锰
反应机理
吸附
脱色
Direct scarlet 4BS
Potassium permanganate
Manganese dioxide
Reaction mechanism
Adsorption
Decoloration
