Increasing ammonia recovery from high-level ammonium wastewater via adding sodium sulfate to prevent nitrogen generation in the cathode
文献类型：期刊论文
| 作者 | Xu, Linji; Pang, Yunsong; Huang, Dezhao; Zhuang, Huichuan; Luo, Tengfei; Lee, Po-Heng; Liu, Wenzong ; Zhang, Sheng; Feng, Li
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| 刊名 | ENVIRONMENTAL RESEARCH
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| 出版日期 | 2020-07 |
| 卷号 | 186页码:1-9 |
| 关键词 | Sodium sulfate Ammonia recovery Reducing nitrogen gas Electric double layer Molecular dynamic simulation |
| ISSN号 | 0013-9351 |
| 英文摘要 | The high-level ammonium-nitrogen (NH4+-N) is a contaminant for aqueous environment but a potential hydrogen fuel. This study investigated an approach of increasing ammonia recovery via adding sodium sulfate of 0-1.5 M to prevent from nitrogen generation. The results of experiment tests, electrochemical analysis and MD simulation demonstrated that the added Na2SO4 assisted ammonium transport inhibited nitrogen gas generation in a certain concentration range. In electric double layer (EDL), with Na2SO4 concentration increasing, both the migration velocities of NH4+ and Na+ are accelerated for Na2SO4 of 0-0.25 M, whereas they are decelerated for concentrate Na2SO4 that 0.5 M). A thick layer formed by Na+ that imposed a fierce competitive adsorption blocked the migration of NH4+ and the transportation of electrons. The decrease of electrons and the accumulation of water molecules caused the potential drop in the EDL. 0.25 M Na2SO4 was the optimal concentration from the aspect of ion transports. The results obtained in this study can allow the manipulation of EDI capacity optimization. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45173]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Xu, Linji,Pang, Yunsong,Huang, Dezhao,et al. Increasing ammonia recovery from high-level ammonium wastewater via adding sodium sulfate to prevent nitrogen generation in the cathode[J]. ENVIRONMENTAL RESEARCH,2020,186:1-9. |
| APA | Xu, Linji.,Pang, Yunsong.,Huang, Dezhao.,Zhuang, Huichuan.,Luo, Tengfei.,...&Feng, Li.(2020).Increasing ammonia recovery from high-level ammonium wastewater via adding sodium sulfate to prevent nitrogen generation in the cathode.ENVIRONMENTAL RESEARCH,186,1-9. |
| MLA | Xu, Linji,et al."Increasing ammonia recovery from high-level ammonium wastewater via adding sodium sulfate to prevent nitrogen generation in the cathode".ENVIRONMENTAL RESEARCH 186(2020):1-9. |
入库方式： OAI收割
来源：生态环境研究中心
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