Recovery of monovalent mineral salts from urine in controlled ecological life support system by nanofiltration: Feasibility study
文献类型：期刊论文
| 作者 | Wang, Jianxing ; Wei, Yuansong
|
| 刊名 | DESALINATION
 |
| 出版日期 | 2020-04-01 |
| 卷号 | 479页码:1-4 |
| 关键词 | Monovalent mineral salt recycling Urine Nanofiltration Controlled ecological life support system |
| ISSN号 | 0011-9164 |
| 英文摘要 | In controlled ecological life support system (CELSS), the water, oxygen, food and other life-support materials should be provided through material closure and circulation. Monovalent mineral salts were one kind of essential life-support substances for astronaut. However, few studies were focus on their recovery in CELSS. In this study, nanofiltration (NF) was used to investigate the feasibility of separating and recovering monovalent mineral salts from urine in CELSS by two membranes of DL and NF3. Results showed that the DL had higher flux and better monovalent ion separation efficiency (both the S-cation and S-anion were lower) than the NF3. The organics in NF permeate was mainly urea which could be hydrolyzed into NH4+-N in natural. Under operation pressure of 8 bar, cross-flow velocity of 0.8 m/s, pH of 6.0, volume reduction factor (VRF) of 4.0 and through storing for 72 h, the monovalent ions could be separated effectively with multivalent ions and organics. The main component of the solid part in the product solution were Na+, K+, and Cl-, which accounted for 26.32%, 18.00% and 49.96%, respectively. The results of this study suggested that recovery of mineral salt of NaCl and KCl from urine in CELSS by nanofiltration was feasible. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45054]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Jianxing,Wei, Yuansong. Recovery of monovalent mineral salts from urine in controlled ecological life support system by nanofiltration: Feasibility study[J]. DESALINATION,2020,479:1-4. |
| APA | Wang, Jianxing,&Wei, Yuansong.(2020).Recovery of monovalent mineral salts from urine in controlled ecological life support system by nanofiltration: Feasibility study.DESALINATION,479,1-4. |
| MLA | Wang, Jianxing,et al."Recovery of monovalent mineral salts from urine in controlled ecological life support system by nanofiltration: Feasibility study".DESALINATION 479(2020):1-4. |
入库方式： OAI收割
来源：生态环境研究中心
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