Phosphate Removal from Water Using Novel Fe2+-KMnO4 Process: Significant Role of In Situ-Formed Fe(III)
文献类型：期刊论文
| 作者 | Lu, Jianbo; Hao, Jing; Cheng, Fang; Liu, Huijuan; Qu, Jiuhui |
| 刊名 | JOURNAL OF ENVIRONMENTAL ENGINEERING
 |
| 出版日期 | 2015-02 |
| 卷号 | 141期号:2页码:- |
| 关键词 | Phosphate Removal Ferrous ion Potassium permanganate In-situ formed Fe(III) Coprecipitation |
| 英文摘要 | This paper investigated the phosphate removal from aqueous solutions using the Fe2+-KMnO4 process. Results indicated that the reaction of Fe2+ and KMnO4 in the Fe2+-KMnO4 process could synergistically increase the removal of phosphate compared with those achieved by Fe(III) coagulation and MnO2 adsorption at pH >= 7. It was necessary that the optimal Fe/P molar ratio was above 3 for effective phosphate removal because of effects of coexisting substances. At pH 7.0, phosphate removal approached a maximum within approximately 5 min. Competing effects of sulfate, bicarbonate, and silicate on phosphate removal were slight. The presence of Ca2+ and Mg2+ had limited effects on phosphate removal at pH <= 4 but resulted in a significant increase at pH >= 5. Coprecipitation was considered as the dominant mechanism about phosphate removal in the Fe2+-KMnO4 process. Fe(III) formed in situ was primarily responsible for phosphate removal. Additionally, in-situ-formed MnO2 also contributed to the phosphate removal through complexation adsorption. The Fe2+-KMnO4 process had the potential to be utilized in natural water and municipal wastewater treatment for phosphate removal. (C) 2014 American Society of Civil Engineers. |
| 研究领域[WOS] | Engineering, Environmental ; Engineering, Civil ; Environmental Sciences |
| WOS记录号 | WOS:000348036700003 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32818]  |
| 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 | Lu, Jianbo,Hao, Jing,Cheng, Fang,et al. Phosphate Removal from Water Using Novel Fe2+-KMnO4 Process: Significant Role of In Situ-Formed Fe(III)[J]. JOURNAL OF ENVIRONMENTAL ENGINEERING,2015,141(2):-. |
| APA | Lu, Jianbo,Hao, Jing,Cheng, Fang,Liu, Huijuan,&Qu, Jiuhui.(2015).Phosphate Removal from Water Using Novel Fe2+-KMnO4 Process: Significant Role of In Situ-Formed Fe(III).JOURNAL OF ENVIRONMENTAL ENGINEERING,141(2),-. |
| MLA | Lu, Jianbo,et al."Phosphate Removal from Water Using Novel Fe2+-KMnO4 Process: Significant Role of In Situ-Formed Fe(III)".JOURNAL OF ENVIRONMENTAL ENGINEERING 141.2(2015):-. |
入库方式： OAI收割
来源：生态环境研究中心
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