| 粉煤灰对苯酚废水的吸附研究 |
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| 引用本文： | 王峰,夏汀,林子增,沈巍,王郑.粉煤灰对苯酚废水的吸附研究[J].环境工程,2011(Z1). |
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| 作者姓名： | 王峰 夏汀 林子增 沈巍 王郑 |
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| 作者单位： | 南京市市政设计研究院有限责任公司;南京林业大学土木工程学院; |
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| 基金项目： | 2009年度南京市市政设计研究院有限责任公司学术带头人基金 |
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| 摘 要： | 在静态条件下研究了粉煤灰对苯酚的吸附性能,结果表明:平均粒径29.06μm,孔隙率64.0686%,在吸附时间50min,粉煤灰用量120 g/L,pH=7.45条件下,对75 mL浓度为30 mg/L的苯酚模拟废水,吸附效果最好,可达82.4%。粉煤灰吸附苯酚机理复杂,偏向于单分子层吸附的Langmuir吸附等温线模式:q=0.042Ce/(1+0.095Ce),吸附反应为一级反应,速率方程为lnC=-0.0096t+3.3097(C0=30 mg/L)。
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| 关 键 词： | 粉煤灰 吸附 苯酚 机理 孔径分布 |
STUDY ON ADSORPTION OF WASTE WATER CONTAINING PHENOL WITH FLY ASH |
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| Wang Feng Xia Ting Lin Zizeng Shen Wei Wang Zheng.STUDY ON ADSORPTION OF WASTE WATER CONTAINING PHENOL WITH FLY ASH[J].Environmental Engineering,2011(Z1). |
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| Authors: | Wang Feng Xia Ting Lin Zizeng Shen Wei Wang Zheng |
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| Institution: | Wang Feng1 Xia Ting1 Lin Zizeng2 Shen Wei1 Wang Zheng2(1.Nanjing Municipal Design and Research Institute Co.,Ltd,Nanjing 210008,China,2.College of Civil Engineering,Nanjing Forestry University,Nanjing 210037,China) |
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| Abstract: | Mechanism and properties of phenol adsorption on fly ash have been studied in static condition.The results showed the phenol removal rate can reach 82.4% in the condition of adsorption time 50 min,120 g/L dosage,pH 7.45 using fly ash of the average particle size 29.06μm and porosity 64.0686% for 75 mL tested phenol water.The adsorption of phenol with fly ash is consistent with an adsorption isotherm of the Langmuir type equation,whose q=0.042Ce/(1+0.095Ce);adsorption rate equation belongs to first-order reaction,whose rate formula is lnC=-0.0096 t + 3.3097(C0 = 30 mg/L). |
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| Keywords: | fly ash adsorption phenol Mechanism pore diameter distribution |
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