Evaluation of electrical energy per order (EEO) with kinetic modeling on the removal of Malachite Green by US/UV/H2O2 process
Evaluation of electrical energy per order (EEO) with kinetic modeling on the removal of Malachite Green by US/UV/H2O2 process
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DOI：
10.1016/j.desal.2008.07.025
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发表时间：
2009-11-30
期刊：
影响因子：
9.9
通讯作者：
Shokri, Mohammad
中科院分区：
文献类型：
--
作者：
Behnajady, Mohammad A.;Vahid, Behrouz;Shokri, Mohammad
采用非线性回归分析方法研究了US/UV/H2 O2对纺织工业中典型阳离子染料孔雀石绿色（MG）的脱色动力学。实验结果表明，该工艺中MG的脱色动力学符合拟一级动力学。通过非线性回归分析，建立了拟一级常数（k（ap））与H2 O2初始浓度等操作参数的关系模型（25-600 mg l（-1））和MG（1.82-9.87 mg l（-1）），温度（294-307 K）和功率密度（0.049-0.16 W ml（-1））如下：k（ap）= 283 exp（-9000/RT）（0.0205 +（1.76 x 10（-3）[H2O2]（o）/1 + 4.86 x 10（-4）[H2O2]（o）+ 9.5 x 10（-6）[H2O2]（o）（2））[MG]（-0.668）（P/V）（0.313）对于电能成本评估，根据实验和理论数据估计每阶电能的品质因数（E-EO）。结果表明，EEO对上述操作参数非常敏感。(C)2009 Elsevier B. V.保留所有权利。
The kinetics of decolorization of Malachite Green (MG) as a model cationic dye from textile industry, by US/UV/H2O2 process, was investigated with nonlinear regression analysis. The experimental results indicated that the decolorization kinetics of MG in this process fit well by pseudo-first order kinetics. With nonlinear regression analysis a model was developed for pseudo-first order constant (k(ap)) as a function of operational parameters such as initial concentrations of H2O2 (25-600 mg l(-1)) and MG (1.82-9.87 mg l(-1)), temperature (294-307 K) and power density (0.049-0.16 W ml(-1)) as following:k(ap) = 283 exp(-9000/RT)(0.0205 + (1.76 x 10(-3)[H2O2](o)/1 + 4.86 x 10(-4)[H2O2](o) + 9.5 x 10(-6)[H2O2](o)(2))[MG](-0.668)(P/V)(0.313)For electrical energy cost evaluation, the figure-of-merit electrical energy per order (E-EO) was estimated from experimental and theoretical data. The results show that EEO is very sensitive to the mentioned operational parameters. (C) 2009 Elsevier B.V. All rights reserved.