| TiO_2光催化氧化降解印染废水的研究 |
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| 引用本文： | 罗洁,陈建山,程凯英.TiO_2光催化氧化降解印染废水的研究[J].应用化工,2004,33(5):24-26. |
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| 作者姓名： | 罗洁 陈建山 程凯英 |
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| 作者单位： | 1. 中南林学院,工业学院,湖南,长沙,410004
2. 中山市恒雅环保工程有限公司,广东,中山,528402 |
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| 基金项目： | 中南林学院青年科学研究基金资助项目(0200) |
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| 摘 要： | 锐钛矿型TiO2为光催化剂,采用高压汞灯为光源对实际印染废水进行了光催化降解的研究,主要探讨了TiO2用量、光照时间、光照强度、溶液初始pH值和H2O2加入浓度等因素对印染废水CODcr去除率和脱色率的影响,找出了最佳的反应条件。结果表明:TiO2光催化氧化对印染废水CODcr和色度具有显著的去除效果,最佳的处理条件为:300W光照,TiO2用量为8g/L,光照时间为120min,初始pH值为1,H2O2加入浓度为3.0mmol/L。
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| 关 键 词： | 光催化氧化 印染废水 脱色率 |
| 文章编号： | 1671-3206(2004)05-0024-03 |
| 修稿时间： | 2004年2月1日 |
Study on photocatalysis degradation of dyeing waste water by TiO2 |
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| LUO Jie,CHEN Jian-shan,CHENG Kai-ying.Study on photocatalysis degradation of dyeing waste water by TiO2[J].Applied chemical industry,2004,33(5):24-26. |
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| Authors: | LUO Jie CHEN Jian-shan CHENG Kai-ying |
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| Affiliation: | LUO Jie~1,CHEN Jian-shan~1,CHENG Kai-ying~2 |
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| Abstract: | Photocatalysis degradation of dyeing waste water was studied using the anatase TiO_2 as photocatalyst and high-pressure mercury lamp as light source in the paper. The effects of factors such as the amount of TiO_2,the time and intensity of irradiation, the initial pH value of solution and the concentration of H_2O_2 on the removal rate of COD_(cr) and for dyeing waste water were discussed. The results showed that the optimum conditions were determined as follows: amount of TiO_2 is 8 g/L, the irradiation time is 120 min, initial pH value is about 1 and concentration of H_2O_2 is 3.0 mmol/L.Photocatalytic oxidation process was effective for the decolorization and COD_(cr) removal of dyeing waste (water). |
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| Keywords: | photocatalysis oxidation dyeing waste water efficiency of decolorization |
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