| Mg/Al水滑石对腐殖酸的去除性能研究 |
| |
| 引用本文： | 秦 芳,喻杏元,蒋钦凤,付 硕,陈金毅.Mg/Al水滑石对腐殖酸的去除性能研究[J].材料导报,2015,29(16):79-81, 84. |
| |
| 作者姓名： | 秦 芳 喻杏元 蒋钦凤 付 硕 陈金毅 |
| |
| 作者单位： | 武汉工程大学化学与环境工程学院,武汉,430079 |
| |
| 基金项目： | 教育部新世纪优秀人才计划项目(NCET-12-0713)；国家自然科学基金(51374157)；湖北省自然科学基金(2013CFA106)；武汉工程大学研究生教育创新基金(CX2014111) |
| |
| 摘 要： | 采用共沉淀法制备了 Mg/Al 水滑石,并在不同温度下煅烧。探究了煅烧温度、材料投加量、pH 值、腐殖酸初始浓度对水滑石去除腐殖酸的影响。结果表明,当金属物质的量比为3的 Mg/Al 水滑石投加量为0.5 g/L, pH 值为8.5,温度为25℃时,水滑石对10 mg/L 的腐殖酸的去除率能达到96.64%,此时,水滑石的饱和吸附量为19.33 mg/g。Mg/Al 水滑石经3次再生后,对腐殖酸的去除率仍然高达95%以上,表明 Mg/Al 水滑石的可重用性好。
|
| 关 键 词： | 水滑石 腐殖酸 吸附 |
Adsorption Removal of Humic Acid by Mg/Al Hydrotalcite |
| |
| Abstract: | Different Mg/Al ratio hydrotalcite were prepared by co-precipitation.Effect of calcination tempera-ture,adsorbent dosage,pH,the initial concentration of humic acid were studied.The results show that when Mg/Al hydrotalcite(Mg/Al ratio=3)dosage was 0.5 g/L,the concentration of humic acid was 10 mg/L,temperature was 25℃,pH was 8.5,the humic acid removal rate reached 96.64%,while the saturated adsorption capacity of hydrotalcite was 1 9.33 mg/g.Mg/Al hydrotalcite has good reusability through the study on regeneration performance.After three regeneration cycles of hydrotalcite,the regeneration rate can reach more than 95%. |
| |
| Keywords: | hydrotalcite humic acid adsorption |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《材料导报》浏览原始摘要信息 |
|
点击此处可从《材料导报》下载全文 |
|
