Magnetite/Lanthanum hydroxide for phosphate sequestration and recovery from lake and the attenuation effects of sediment particles
文献类型：期刊论文
| 作者 | Huang, Li-Zhi; Fang, Liping; Liu, Ru; Li, Ji; Xu, Cuihong; Wang, Dongsheng |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 130页码:243-254 |
| 关键词 | Magnetic separation Lanthanum hydroxide Eutrophication control Lake restoration Phosphorus fractionation |
| ISSN号 | 0043-1354 |
| 文献子类 | Article |
| 英文摘要 | An effective approach for eutrophication control and phosphate recovery remains a longstanding challenge. Herein, we present a new technique for phosphate sequestration in lake and phosphate recovery using novel magnetically recoverable magnetite/lanthanum hydroxide [M-La(OH)(3)] hybrids that can be prepared using a simple one-pot synthesis method. Batch studies show that M-La(OH)(3) exhibits a strong sorption towards phosphate with sorption capacities of up to 52.7 mg-Pig at pH 7.0 in water. A simple model indicates that the efficiency of M-La(OH)(3) for phosphate sequestration in lake is significantly attenuated by 34-45% compared to that in water, due to interference from sediment particles. However, our results demonstrate that sediments suspensions mixed with a M-La(OH)(3) content of 1-3% exhibit a capability of up to 1.2 mg-Pig for sequestering external phosphate compared with that of 0.2 mg-Pig for pristine sediment at pH 7.3. M-La(OH)(3)-mixed sediment suspensions appear to effectively sequester phosphate over an environmentally relevant pH range from 4 to 8.5. Phosphorus (P) fractionation experiments indicate that the enhanced phosphate sorption by M-La(OH)(3)-mixed sediment suspensions is mainly due to the increased fractions of NaOH-P and inorganic P. This work indicates that the M-La(OH)(3) has the potential for phosphate sequestration and recovery from lake. (C) 2017 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41156]  |
| 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 | Huang, Li-Zhi,Fang, Liping,Liu, Ru,et al. Magnetite/Lanthanum hydroxide for phosphate sequestration and recovery from lake and the attenuation effects of sediment particles[J]. WATER RESEARCH,2018,130:243-254. |
| APA | Huang, Li-Zhi,Fang, Liping,Liu, Ru,Li, Ji,Xu, Cuihong,&Wang, Dongsheng.(2018).Magnetite/Lanthanum hydroxide for phosphate sequestration and recovery from lake and the attenuation effects of sediment particles.WATER RESEARCH,130,243-254. |
| MLA | Huang, Li-Zhi,et al."Magnetite/Lanthanum hydroxide for phosphate sequestration and recovery from lake and the attenuation effects of sediment particles".WATER RESEARCH 130(2018):243-254. |
入库方式： OAI收割
来源：生态环境研究中心
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