| TiO2/紫外光体系降解含酚废水的实验研究 |
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| 引用本文： | 路达,郝玉芬,李瑾丽. TiO2/紫外光体系降解含酚废水的实验研究[J]. 河北大学学报(自然科学版), 2007, 27(4): 391-394. DOI: 10.3969/j.issn.1000-1565.2007.04.014 |
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| 作者姓名： | 路达 郝玉芬 李瑾丽 |
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| 作者单位： | 河北大学,化学与环境科学学院,河北,保定,071002 |
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| 摘 要： | 在TiO2为催化剂条件下采用紫外光降解废水中的苯酚,通过改变pH值、溶液初始质量浓度、光照时间,研究这3个因素对紫外光处理废水效果的影响.实验结果表明,在酸性条件下,紫外光对低质量浓度的苯酚废水在长时间的照射下有较好的降解效果,光照时间在3 h时苯酚去除率为28.6%;同时进行了紫外光与臭氧协同降解苯酚废水研究,在25 min内苯酚和CODCr的去除率分别为52.5%和53.4%,结果表明紫外光和臭氧协同作用极大地提高了苯酚的降解效果,并为进一步的生化处理奠定基础.
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| 关 键 词： | 苯酚废水 TiO2催化剂 紫外光 臭氧 |
| 文章编号： | 1000-1565(2007)04-0391-04 |
| 修稿时间： | 2006-09-02 |
Experimental Study on Phenol Removal by Ultraviolet with TiO2 Cataylst |
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| LU Da,HAO Yu-fen,LI Jin-li. Experimental Study on Phenol Removal by Ultraviolet with TiO2 Cataylst[J]. Journal of Hebei University (Natural Science Edition), 2007, 27(4): 391-394. DOI: 10.3969/j.issn.1000-1565.2007.04.014 |
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| Authors: | LU Da HAO Yu-fen LI Jin-li |
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| Abstract: | Ultraviolet lamp was employed as the radiation source to degrade phenol in waste water with the aid of TiO2 catalyst.The influences of illumination time,the pH value and the initial concentration of the solution on the degradation efficiency were evaluated.The experimental results showed that efficient degradation could be obtained with longer illumination time and lower pH value.The removal rate of phenol was up to 28.6% when illumination time was 3 h.When the wastewater was treated by combining ultraviolet radiation with ozone,the removal rates of phenol and CODCr were up to 52.5% and 53.4%,repectivly in 25 min.The results indicated that the combination of ultraviolet radiation and ozone greatly improved the degradation of phenol in wastewater. |
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| Keywords: | phenol wastewater TiO2 ultraviolet O3 |
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