Preparation of a novel γ-FeOOH-GAC nano composite for decolorization of textile wastewater by photo Fenton-like process in a continuous reactor
Preparation of a novel γ-FeOOH-GAC nano composite for decolorization of textile wastewater by photo Fenton-like process in a continuous reactor
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DOI：
10.1016/j.molcata.2014.05.019
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发表时间：
2014-10
影响因子：
--
通讯作者：
M. Sheydaei;S. Aber;A. Khataee
中科院分区：
文献类型：
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作者：
M. Sheydaei;S. Aber;A. Khataee
首次制备了鳞状球石颗粒活性炭（γ- feoh - gac）纳米复合材料，并对其进行了表征。将所制备的复合材料用于连续反应器中光芬顿法对含活性橙29的纺织废水的脱色。采用响应面法研究了废水流量、h2o2浓度和pH对脱色过程的影响。最佳工艺条件为流速1.98 mL min - 1， h2o2浓度3.25 mM, pH 1.98。在最佳条件下，比较了γ-FeOOH-GAC/H2O2/UV工艺与γ-FeOOH-GAC/UV、γ-FeOOH-GAC/H2O2、γ-FeOOH-GAC、H2O2/UV和UV工艺的脱色能力。结果表明，γ-FeOOH-GAC/H2O2/UV工艺对废水的脱色效果优于其他工艺。
For the first time, lepidocrocite-granular activated carbon (γ-FeOOH-GAC) nano composite was prepared and characterized. The prepared composite was used in the decolorization of textile wastewater containing reactive orange 29 by photo Fenton-like process in a continuous reactor. The influence of wastewater flow rate, H2O2concentration and pH in decolorization process was studied using response surface methodology. The optimum conditions were flow rate of 1.98 mL min−1, H2O2concentration of 3.25 mM and pH of 1.98. The decolorization ability of γ-FeOOH-GAC/H2O2/UV process was compared with that of γ-FeOOH-GAC/UV, γ-FeOOH-GAC/H2O2, γ-FeOOH-GAC, H2O2/UV, and UV processes at the optimum conditions. The obtained results indicated that γ-FeOOH-GAC/H2O2/UV process was more effective than other processes in the decolorization of the wastewater.