Experimental study on the performance evaluation of vacuum distillation process for NH4HCO3 removal

被引：9

作者：

Shim, Sung-Min ^{[1
]}

Lee, Sang-Jin ^{[2
]}

Kim, Woo-Seung ^{[3
]}

机构：

[1] Hanyang Univ, Dept Mech Engn, Grad Sch, Seoul 133791, South Korea

[2] STX Inst Technol, Energy Res Dept, Seoul, South Korea

[3] Hanyang Univ, Dept Mech Engn, Ansan Kyeonggi Do, South Korea

来源：

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2013年 / 27卷 / 04期

关键词：

Membrane distillation; Forward osmosis; VMD; Ammonium bicarbonate (NH4HCO3); Gas removal efficiency; Water recovery efficiency; AMMONIA-CARBON DIOXIDE; MEMBRANE DISTILLATION; DESALINATION; OSMOSIS; WATER; PLANT;

D O I：

10.1007/s12206-013-0304-7

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Experiments on NH4HCO3 removal using a hydrophobic membrane were performed under various operating conditions using VMD. Effects of various operating parameters used to separate NH4HCO3 were predicted after a feed solution recirculation time of 120 min. Results showed that gas removal efficiencies were quite stable in the range of 95% to 99% at initial feed solution temperatures of 50A degrees C and 60A degrees C, an initial feed solution volume of 1 L and a mass flow rate of 0.8 L/min. When the initial feed solution temperature was 40A degrees C, a relatively low gas removal efficiency of 85% was achieved compared to the removal efficiency at temperatures of 50A degrees C and 60A degrees C. After the recovery of transmembrane vapor, a total water recovery of more than 86% was achieved in all cases while NH3 and CO2 removal efficiencies higher than 94% at 60A degrees C with a mass flow rate up to 0.8 L/min were achieved after 60 min.

引用

页码：1171 / 1178

页数：8