Preparation and characterisation of new-polyaluminum chloride-chitosan composite coagulant
文献类型：期刊论文
| 作者 | Ng, Mega ; Liana, Ayu E. ; Liu, Sanly ; Lim, May ; Chow, Christopher W. K. ; Wang, Dongsheng ; Drikas, Mary ; Amal, Rose |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2012 |
| 卷号 | 46期号:15页码:4614－4620 |
| 关键词 | Coagulation NOM Composite PACl Mechanism Speciation |
| ISSN号 | 0043-1354 |
| 中文摘要 | In this study, the formulation of a novel polyaluminum chloride-chitosan composite coagulant that improves the coagulation process for natural organic matter (NOM) removal was investigated. The performance of the composite coagulant was tested using two water sources (synthetic and natural water) to develop a better understanding on the behaviour of the composite coagulant. Fourier Transform-Infra red (FT-IR) spectroscopy, ferron analysis and zeta potential studies were performed to characterise the composite coagulant. FT-IR analysis showed that there is an intermolecular interaction between Al species and chitosan molecules, while ferron analysis indicated that the distributions of Al-a, Al-b, and Al-c in PACl-chitosan are different from those in PACl. At a low Al dosage (2.16 mg L-1), a much higher removal of NOM from synthetic water, as evidenced from UV254 and Dissolved Organic Carbon (DOC) measurements, was achieved by the composite coagulants in comparison to that removed by PACl or PACl and chitosan added separately. For natural water from the Myponga Reservoir, both polyaluminum chloride (PACl) and PACl-chitosan composite coagulants demonstrated similar dissolved organic carbon (DOC) percentage removal, whereas PACl-chitosan gave a slight improvement in removing the UV254 absorbing components of NOM. (C) 2012 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000307425500004 |
| 公开日期 | 2014-11-04 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7851]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Ng, Mega,Liana, Ayu E.,Liu, Sanly,et al. Preparation and characterisation of new-polyaluminum chloride-chitosan composite coagulant[J]. WATER RESEARCH,2012,46(15):4614－4620. |
| APA | Ng, Mega.,Liana, Ayu E..,Liu, Sanly.,Lim, May.,Chow, Christopher W. K..,...&Amal, Rose.(2012).Preparation and characterisation of new-polyaluminum chloride-chitosan composite coagulant.WATER RESEARCH,46(15),4614－4620. |
| MLA | Ng, Mega,et al."Preparation and characterisation of new-polyaluminum chloride-chitosan composite coagulant".WATER RESEARCH 46.15(2012):4614－4620. |
入库方式： OAI收割
来源：生态环境研究中心
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