| Fast removal of ammonium nitrogen from aqueous solution using chitosan-g-poly (acrylic acid)/attapulgite composite | |
| Department | 环境材料与生态化学研究发展中心 |
Zheng YA(郑易安) ; Zhang JP(张俊平); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2009 | |
| Source Publication | Chemical Engineering Journal
 |
| ISSN | 1385-8947 |
| Volume | 155Issue:1-2Pages:215-222 |
| Abstract | In this work, a novel composite adsorbent with three-dimensional cross-linked polymeric networks based on chitosan (CTS) and attapulgite (APT) was prepared via in situ copolymerization in aqueous solution, and its efficacy for removing ammonium nitrogen (NH4+-N) from synthetic wastewater was investigated using batch adsorption experiments. In the adsorption test, the pH effect, adsorption kinetics, isotherms, and desorbability were examined. A comparison between as-prepared adsorbent and clay, powdered activated carbon (PAC), and other reported adsorbents was also carried out. The results indicate that as prepared composite adsorbent is pH-dependent and has faster adsorption kinetics and higher adsorption capacity. At natural pH, the composite adsorbent with 20 wt.% APT can adsorb 21.0mg NH4+-N per gram, far higher than the other adsorbents involved. The adsorbed NH4+-N can be completely desorbed by 0.1 mol/L NaOH within 10 min. All information obtained give an indication that the composite can be used as a novel type, fast-responsive and high-capacity sorbent material for NH4+-N removal. |
| Keyword | Ammonium Nitrogen Composite Adsorbent Kinetics Isotherms Adsorption Mechanism |
| Subject Area | 功能高分子 |
| Funding Organization | 江苏省科技厅项目(BS2007118) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/147 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | 王爱勤 aqwang@licp.cas.cn |
| Recommended Citation GB/T 7714 | Zheng YA,Zhang JP,Wang AQ,et al. Fast removal of ammonium nitrogen from aqueous solution using chitosan-g-poly (acrylic acid)/attapulgite composite[J]. Chemical Engineering Journal,2009,155(1-2):215-222. |
| APA | 郑易安,张俊平,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2009).Fast removal of ammonium nitrogen from aqueous solution using chitosan-g-poly (acrylic acid)/attapulgite composite.Chemical Engineering Journal,155(1-2),215-222. |
| MLA | 郑易安,et al."Fast removal of ammonium nitrogen from aqueous solution using chitosan-g-poly (acrylic acid)/attapulgite composite".Chemical Engineering Journal 155.1-2(2009):215-222. |
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| File Name/Size | DocType | Version | Access | License | ||
| 200915512215222.pdf（576KB） | 开放获取 | License | View Application Full Text | |||
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