Simultaneous Fe(OH)3 formation and silicon adsorption removal from reverse osmosis brine wastewater
文献类型：期刊论文
| 作者 | Sun, Jingjing1,2; Chen, Shangqing2; Wang, Junfeng2,3; Nie, Yi2,3 |
| 刊名 | Chemical Engineering Research and Design
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 188页码:964-971 |
| 关键词 | Chemicals removal (water treatment) - Chlorine compounds - Cost effectiveness - Ions - Iron compounds - Reverse osmosis - Sulfur compounds - Wastewater treatment - Water quality |
| ISSN号 | 2638762 |
| DOI | 10.1016/j.cherd.2022.10.042 |
| 英文摘要 | The reduce of the silicon concentration to low level (鈭?) from the reverse osmosis brine wastewater is challenging and desirable for the maintain the membrane life and performance, as well as the wastewater treatment costs. This work focuses on the removal of silicon from the reverse osmosis brine wastewater by adding FeCl3 into the plant wastewater for simultaneous Fe(OH)3 formation and silicon adsorption. The effects of pH, FeCl3 dosing concentration, reaction time, and temperature on the silicon removal ratio were investigated. It was demonstrated that the silicon removal ratio could reach up to 94% and its residual concentration was 3.2 mg路L鈭?, which met the require of water quality in the reverse osmosis system. These results showed that Fe(OH)3 could effectively be formed by adding FeCl3 and realize the efficient silicon removal from the reverse osmosis brine wastewater, even when chloride ion (Cl-), sulfate anion (SO42-) and nitrate ion (NO3-) were present. Moreover, the adsorption thermodynamics, kinetics and isotherms during the process of the adsorption of silicon from the wastewater by Fe(OH)3 were studied. The calculated adsorption capacity of silicon could reach 612.74 mg路g鈭?, which was much larger than those of reported adsorbents. These results showed that the silicon removal process was spontaneously exothermic and mainly controlled by the physical adsorption and the monomolecular layer adsorption. This simple and cost-effective method could be used for the silicon removal from different kinds of Si-containing wastewater. 漏 2022 Institution of Chemical Engineers |
| 学科主题 | Adsorption |
| 项目编号 | This work was supported by the National Key R＆ ; D Program of China ( 2021YFC3201404 ), National Natural Science Foundation of China ( 21978302 , U20A20149 ), and China Postdoctoral Science Foundation ( 2021TQ0333 and 2022M713174 ). |
| 出版者 | Institution of Chemical Engineers |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61237]  |
| 作者单位 | 1.School of Chemical Engineering, Shenyang University of Chemical Technology, Liaoning, Shenyang; 110142, China 2.Beijing Key Laboratory of Ionic Liquids Clean Process/State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 3.Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing; 100190, China |
| 推荐引用方式 GB/T 7714 | Sun, Jingjing,Chen, Shangqing,Wang, Junfeng,et al. Simultaneous Fe(OH)3 formation and silicon adsorption removal from reverse osmosis brine wastewater[J]. Chemical Engineering Research and Design,2022,188:964-971. |
| APA | Sun, Jingjing,Chen, Shangqing,Wang, Junfeng,&Nie, Yi.(2022).Simultaneous Fe(OH)3 formation and silicon adsorption removal from reverse osmosis brine wastewater.Chemical Engineering Research and Design,188,964-971. |
| MLA | Sun, Jingjing,et al."Simultaneous Fe(OH)3 formation and silicon adsorption removal from reverse osmosis brine wastewater".Chemical Engineering Research and Design 188(2022):964-971. |
入库方式： OAI收割
来源：过程工程研究所
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