H_2O_2/Fe^(2+)和H_2O_2/Fe^(3+)系统氧化活性染料废水的研究  

Oxidation of reactive dye waste water with H_2O_2/Fe^(2+) and H_2O_2/Fe^(3+)

作　　者：王滨松[1] 黄君礼[1] 张杰[2] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [2]东北林业大学生命科学学院,黑龙江哈尔滨150040

出　　处：《哈尔滨商业大学学报（自然科学版）》2005年第6期697-701,共5页Journal of Harbin University of Commerce：Natural Sciences Edition

基　　金：黑龙江省自然科学基金资助项目(E01-06)

摘　　要：论述了H2O2/Fe2+和H2O2/Fe3+对商业染料活性红(FN-2BL red)、活性蓝(C-R blue)和活性黄(C-2R yellow)废水COD和色度的去除效果.当染料质量浓度为400 mg/L时,实验得出的最佳工艺条件为:H2O2/Fe2+:pH=3.5,[Fe2+]=1 mmol/L,[H2O2]=646 mg/L,θ=60℃,反应60 min;H2O2/Fe3+:pH=2.5,[Fe3+]=1 mmol/L,[H2O2]=646~782 mg/L,θ=60℃,反应60 min.在最佳工艺条件下,这两种系统氧化活性红、活性蓝和活性黄废水的COD去除率分别达到93.6%、91.3%和93.7%,色度去除率均达到99%以上.改进的H2O2/Fe3+与H2O2/Fe2+比较,达到相同的处理效果可以减少7%H2O2投量,被认为是比较理想的氧化活性染料废水的系统.The effect of H2O2/Fe^2＋ and H2O2/Fe^3＋ on removal efficiencies of COD and colority for FN - 2BL red, C - R blue, and C - 2R yellow wastewater was first systematically investigated in this paper. For H2O2/Fe^2＋ , the optimized experimental conditions are： pH = 3.5, [ Fe^2＋ ] = 1 mmol/L, [H202] =646 rag/L, 60 ~C, 60 min, and for H2O2/Fe^2＋ ： pH=2.5, [Fe^3＋ ] = 1 mmol/L, [H2O2] = 646 - 782 mg/L, 60 ℃, 60 min when the concentration of dye is 400 mg/ L. Under such conditions, The observed COD removal efficiencies were 93.6%, 91.3% and 93.7 % for FN - 2BL red, C - R blue and C - 2R yellow, respectively; the colority removal efficiencies were above 99%. Compared with H2O2/Fe^2＋, modified H2O2/Fe^3＋ can reduce 7% H2O2 dose, and thus is regarded as an ideal oxidation waste water system.

关 键 词：活性染料 催化氧化 色度 降解 

分 类 号：X703[环境科学与工程—环境工程]