Fenton氧化法去除皮革废水中单宁的试验研究  

OXIDATION OF TANNINS IN TANNERY WASTEWATER BY FENTON'S REAGENT

作　　者：栗玉鸿[1] 李伟光[1,2] 王勇[1] 宿程远[1] 

机构地区：[1]市政环境工程学院,哈尔滨工业大学,黑龙江哈尔滨150090 [2]城市水资源开发利用(北方)国家工程研究中心,黑龙江哈尔滨150090

出　　处：《水处理技术》2011年第12期68-71,共4页Technology of Water Treatment

基　　金：国家科技支撑计划(2009BAC57B03)

摘　　要：单宁抗氧化、具有生物毒性是制革废水中典型的难降解有机物,本试验初步研究了Fenton氧化对单宁降解的效果,为皮革废水生物出水深度处理提供依据。通过单因素分析确定了几种影响因子的最佳操作条件为:pH=3,质量分数30%的H2O2投加量为1 mL.L-1,n[Fe2+]:n[H2O2]=1:20,不曝气,温度为35℃,反应时间为60 min。另外调节Fenton反应后出水pH为碱性,通过沉淀对COD的去除有进一步的提高。Tannins which are antioxidant and biotoxicity,are typical refractory organic in tannery wastewater. The mechanisms of affecting factors in degrading tanins by Fenton＇s reagent were preliminarily investigated. It can provide practical and important basis to advanced treatment of effluent of biochemical treated tannery wastewater. The optimal operating conditions determined by single factor experiments were as following： 30%HZO2=1 mL. L-1, n[Fe2＋]：n[H2O2]=1：20,no aeration, T=35℃ and 60 min at pH=3. Adjusting the water pH value to alkali condition after reaction, the removal rate of COD can be further improved.

关 键 词：单宁 皮革废水 FENTON氧化 

分 类 号：X794[环境科学与工程—环境工程]