| 新生MnO2对直接染料废水的脱色作用 |
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| 引用本文： | 蒋兰宏,马子川,等.新生MnO2对直接染料废水的脱色作用[J].城市环境与城市生态,2002,15(2):10-12. |
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| 作者姓名： | 蒋兰宏 马子川 |
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| 作者单位： | 河北师范大学化学学院 石家庄050091
(蒋兰宏，马子川)，河北师范大学化学学院 石家庄050091(董丽丽) |
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| 摘 要： | 以化学法合成的新生MnO2作吸附剂，对直接桃红12B（Direct red 12B)，直接大红4B（Direct reb 4B)，直接耐晒蓝B2RL（Direct Fast blue B2RL)染料废水进行脱色研究，探讨了影响吸附的因素，结果表明：新生MnO2对三种染料的吸附符合Langmuir吸附等温式，吸附速率大，在适宜条件下对直接桃红，直接大红，直接耐晒蓝的脱色率分别为95．5％，96．2％和98．9％。
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| 关 键 词： | 染料废水 新生MnO2 直接桃红 直接大红 直接耐晒蓝 吸附作用 脱色 废水处理 |
Decolorization of Direct Dyestuff Wastewater by Fresh MnO_2 |
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| JIANG Lan hong,MA Zi chuan,DONG Li li.Decolorization of Direct Dyestuff Wastewater by Fresh MnO_2[J].Urban Environment & Urban Ecology,2002,15(2):10-12. |
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| Authors: | JIANG Lan hong MA Zi chuan DONG Li li |
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| Abstract: | In this paper, the decolorization efficiency of aqueous solutions of Direct Red 12B, Direct Red 4B and Direct Fast blue B 2R L with the fresh MnO 2 as an adsorbent synthesized by chemical process was studied. Influencing factors of adsorption were investigated in detail. The experimental results showed that the adsorption of dyes on the fresh MnO 2 was conformed to the Langmuir isotherm equation with high adsorption rate. The efficiencies of decolorization were up to 95.5%(Direct Red 12B),96.2%(Direct Red 4B) and 98.9%(Direct Fast blue B 2R L) respectively. |
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| Keywords: | fresh MnO 2 direct red 2B direct red 4B direct fast blue B 2R L adsorption decolorization |
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