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- Title
An experimental study on recovering and concentrating ammonia by sweep gas membrane distillation.
- Authors
Li, Zhan; Zhang, Pengfei; Guan, Kecheng; Gonzales, Ralph Rolly; Ishigami, Toru; Xue, Ming; Yoshioka, Tomohisa; Matsuyama, Hideto
- Abstract
Ammonia is a toxic and hazardous substance, as well as a valuable chemical. The gaseous ammonia are soluble in water, rendering some industrial wastewater contains high concentration of ammonia. These wastewater can be a direct source for the production of commercially concentrated ammonia solution via sweep gas membrane distillation (SGMD). Taking advantage of vapor-liquid equilibrium of ammonia-water binary system, ammonia can be recovered from these wastewater, and concentrated to several times higher concentration under optimized conditions. In this work, we have demonstrated the ammonia recovery by SGMD process, and comprehensively investigated the effect of different operation conditions on the SGMD performance.
- Subjects
MEMBRANE distillation; AMMONIA gas; AMMONIA; HAZARDOUS substances; VAPOR-liquid equilibrium; SEWAGE
- Publication
Process Safety & Environmental Protection: Transactions of the Institution of Chemical Engineers Part B, 2023, Vol 171, p555
- ISSN
0957-5820
- Publication type
Article
- DOI
10.1016/j.psep.2023.01.053