| 染料中间体废水的催化臭氧化预处理 |
| 摘要点击 830 全文点击 1035 投稿时间：1995-10-20 |
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| 中文关键词 吐氏酸废水 催化剂 金属催化臭氧化 |
| 英文关键词 tobias acid wastewater catalyst metal oxide catalyzed ozonation |
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| 中文摘要 |
| 自制了2种高活性的催化剂Mn-02和Fe-Ni-Urea,并对典型染料中间体废水─吐氏酸废水进行金属催化臭氧化预处理。对初始COD浓度约为1500mg/L的废水,当臭氧投加量为0.82g/L时,COD去除卒大于50%;其臭氧化指数(OI)分别为豆。44和1.07,而相应的空白则为1.90.色质联用和离子色谱分析表明吐氏酸的金属催化臭氧化产物为:邻苯二甲酸、乙二酸、硝酸根、硫酸根,提出了吐氏酸的臭氧化途径;理论分析表明,吐氏酸经金属催化臭氧化后,可生化性大大改善。 |
| 英文摘要 |
| Two catalysts were prepared and used for pretreatment of typical dye intermediate wastewater-tobias acid wastewater by metal oxide catalyzed ozonation.For wastewater with initial COD concentration of 1500 mg/L,when ozonation dose is 0.82 g/L,COD removal efficiency is above 50%. And Ozonation Index(OI) of the two catalysts are 1.44 and 0.7 respectively,while the blank γ-Al2O3,is 1.90 The ozonation products of tobias acid identified by gas chromatography-mass spectrography are o-benzendicarboxylic acid,oxalic acid,sulphate ion and nitrate ion,and then the ozonation pathway is proposed.After tobias acid is treated by metal oxide catalyzed ozonation,the biodegradability is improved apparently. |
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