电气石在环境领域的最新应用研究：处理雅格素蓝BF-BR染料废水

在氧化剂(H2O2)的协同作用下,电气石对雅格素蓝BF-BR染料废水具有良好的脱色能力,脱色率与电气石用量、氧化剂用量、水浴温度、作用时间呈正相关性,溶液pH值为2和12时,脱色率最大.正交实验优化了工艺条件:氧化剂用量1.5 mL、作用时间9 min、电气石用量1g、水浴温度363 K、pH=2,此时脱色率可达到100%.动力学研究表明:雅格素蓝BF-BR染料废水的脱色反应为一级反应,其反应表观动力学方程为:-lnCR=0.36733t-lnC0(R=0.9827),反应速率常数为k=0.36733 min-1,反应半衰期为t1/2=1.887 min.机理的初步分析表明:脱色过程是矿物催化-类芬顿反应.

Novel application of tourmaline in environmental field: Treatment of argazol blue BF-BR dyeing wastewater

Cooperating with oxidation(H2O2),tourmaline can efficiently make the argazol blue BF-BR dyeing wastewater decolored.The decoloration rate of argazol blue BF-BR increases,with tourmaline dosage,oxidation dosage,temperature and contact time increasing.At pH=2 and 12,decoloration rate reaches maximum.Through orthogonal experiments,the optimum condition can be concluded that oxidation dosage is 1.5 mL,contact time is 9 min,tourmaline dosage is 1 g,temperature is 363 K and solution pH is 2.Under the optimum condition,the decoloration ratio can come up to 100%.Kinetic research indicates that the decoloration reaction of argazol blue BF-BR accords to one order kinetic reaction,and the kinetic equation can be described as follows:-lnCR=0.36733t-lnC0(R=0.9827),with reaction rate constant k=0.36733 min-1 and half life t1/2=1.887 min.Mechanism analysis shows that mineral-catalyzed Fenton-like reaction results in the decoloration of argazol blue BF-BR dyeing wastewater.