| 聚乙烯醇包埋活性炭／纳米TiO2微球处理含铬废水的研究 |
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| 引用本文： | 黄毅,薛晚侠,汪池金,王书敏.聚乙烯醇包埋活性炭／纳米TiO2微球处理含铬废水的研究[J].化工给排水设计,2008(2):46-48. |
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| 作者姓名： | 黄毅 薛晚侠 汪池金 王书敏 |
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| 作者单位： | 重庆文理学院化学与环境科学系,重庆402168 |
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| 摘 要： | 采用液-液相分离的方法制备了聚乙烯醇共包埋活性炭和纳米TiO2的微球，并考察了其对模拟含铬废水的处理效果。试验结果表明：微球对废水中的Cr（Ⅳ）有较好的处理效果，且去除率随纳米TiO2包埋量的增加而增加，当微球加入量为140g／L，微球中活性炭、纳米TiO2包埋量分别为6％和4％，pH值为3，作用时阀为3h时，Cr（Ⅳ）的去除率可达90％以上，且微球使用方便，不会造成二次污染。
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| 关 键 词： | 活性炭 六价铬 包埋 纳米TIO2 废水处理 |
Research on treatment of chromium-containing wastewater by PVA entrapped activated carbon/nano-TiO2 micro-ball |
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| Authors: | HUANG Yi XUE Wan-xia WANG Chi-jin WANG Shu-min |
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| Affiliation: | (School of Chemistry and Environmental Science, Chongqing University of Arts and Science, Chongqing 402168, China) |
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| Abstract: | PVA entrapped activated carbon/nano-TiO2 micro-ball were prepared by liquid-liquid phase separation method, the effect of it on treatment of simulant chromium-containing wastewater was investigated. The results of the test showed that： micro-ball had good effect on chromium-containing wastewater treatment, and the removal rate of Cr（Ⅳ） increased with the increasing of the entrapment amount of nano-TiO2, when the dosage of micro-ball reached 140 g/L, the entrapment amount of activated carbon, nano-TiO2 were 6% and 4% respectively, the pH value was 3, the reaction time was 3 h, the removal rate of Cr（Ⅳ） could reached 90% or even above. The micro-ball was convenient to use and would not cause secondary pollution. |
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| Keywords: | activated carbon Cr（Ⅳ） entrapment nano-TiO2 wastewater treatment |
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