Fenton氧化去除高盐废水中有机物:过程优化控制研究

本研究采用Fenton氧化去除高盐废水中有机物,同时对氧化反应过程进行优化控制研究。实验结果表明,药剂投加方式和反应条件的控制对Fenton氧化的影响很大。在药剂投加总量一致的前提下,分批相比单次投加有机物的去除效率更好。在控制反应温度为60℃,过氧化氢投加量为10%(v/v),亚铁和过氧化氢摩尔比为0.05,TOC去除率可以达到90%以上,两级Fenton氧化后废水的TOC小于200 mg/L,达到隔膜电解的厂界进水标准。

Study on Process Optimization of Removal of Organic Matters from High Salinity Wastewater

The feasibility and effect of removal of organic matters in wastewater containing high NaCI content treatment by using Fenton oxidation was investigated in this study. In addition, the optimization control study of operating conditions for Fenton process was conducted. Resulted indicated that the efficiency of Fenton oxidation on TOC removal was deeply influenced by addition modes of reagents and reactions conditions. Increase of addition times of reagents and temperature could improve removal of organic matters in wastewater. More than 90 % of could be reduced when the dosage of H2O2. temperature, reaction pH and molar ratio of ferrous and H202 were 10 % （v/v）, 80℃, 3 and 0.05 respectively. The wastewater could reach the reuse standard of electrolysis.