| 铝盐改性石英砂制备及其吸附性能研究 |
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| 引用本文： | 丁春生,蒋志元,张德华,缪佳.铝盐改性石英砂制备及其吸附性能研究[J].非金属矿,2009,32(5). |
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| 作者姓名： | 丁春生 蒋志元 张德华 缪佳 |
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| 作者单位： | 1. 浙江工业大学建筑工程学院,杭州,310032
2. 昆明理工大学环境科学与工程学院,昆明,650093 |
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| 基金项目： | 浙江省科技计划项目，浙江工业大学环境工程重中之重学科开放基金 |
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| 摘 要： | 以石英砂为载体,用反复加热蒸干法制备了铝盐改性砂,分别考察了铝盐改性砂对有机物和Zn2+的吸附性能及其影响因素.结果表明,在pH值为中性条件下,铝盐改性砂吸附效果优于石英原砂,铝盐改性砂对CODCr的去除率比石英原砂提高20%.对UV254的去除率提高了10%左右;铝盐改性砂对Zn2+去除能力比原砂有较大的提高,在pH值中性条件下,石英原砂Zn2+的去除率为43%左右,铝盐改性砂对Zn2+去除率达到70%;随着Zn2+初始浓度的增大,铝盐改性砂对Zn2+的去除率逐渐减少;当改性剂浓度逐渐增大时,Zn2+的去除率逐渐增大,当浓度达到1.25mol/L后,Zn2+的去除率不再提高;铝盐改性砂对Zn2+的去除率随着pH值的升高而提高,当pH值为9时,去除率达90%.
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| 关 键 词： | 铝盐改性砂 制备 除锌 吸附性能 |
Experimental Study on Preparation and Adsorption Capability of Aluminum Salt Modifi ed Sands |
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| Ding Chunsheng,Jiang Zhiyuan,Zhang Dehua,Miao Jia.Experimental Study on Preparation and Adsorption Capability of Aluminum Salt Modifi ed Sands[J].Non-metallic Mines,2009,32(5). |
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| Authors: | Ding Chunsheng Jiang Zhiyuan Zhang Dehua Miao Jia |
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| Affiliation: | Ding Chunsheng1 Jiang Zhiyuan1 Zhang Dehua2 Miao Jia1(1 College of Civil Engineering and Architecture,Zhejiang University of Technology,Hangzhou 310014,2 Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming 650093 ) |
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| Abstract: | In this experiment, quartz sand was chosen as a carrier to be coated with aluminum salt by repeated heating and drying process, and then its adsorption capability and in? uencing factors for organic matter and Zn2+ were investigated, respectively. The results showed that under the condition of a neutral pH value, the adsorption capability of the aluminum-modifi ed sand was better than that of the raw quartz sand, and the removal of COD and UV254 by the aluminum-modifi ed sand were increased by about 20% and... |
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| Keywords: | aluminum salt modifi ed sand preparation zinc removal adsorption capability |
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