Title :
Acidic Wastewater of the Flue Gas Absorbed by Crystal Membrane Distillation
Author :
Wang, He ; Chen, Zhonglin ; Zhai, Xu ; Zhang, Fengjun ; Zhang, Shengyu ; Peng, Xinjing ; Li, Luanning
Author_Institution :
Sch. of Municipal & Environ. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
The effect of neutralizing acidic waste water of the flue gas absorbed by using crude calcium carbonate and treatment of it by using crystal membrane distillation was studied. Effect of some factors, such as the temperature, the original concentration, the velocity of flow and the pH of feed solution, on the process of the membrane distillation and crystallization was observed. The results showed that CaCl2 crystal in the concentrated feed solution began to appear after 18 h running in the condition of the temperature 50degC, the velocity of flow 18.5 mL/min, the pH of feed solution 7, and resulted in the desired crystal. The separation efficiency was close to 100%.
Keywords :
crystallisation; distillation; flue gases; membranes; separation; wastewater treatment; CaCl2; acidic wastewater; crystal membrane distillation; crystallization; flue gas absorbtion; separation efficiency; Biomembranes; Chemical technology; Crystallization; Feeds; Flue gases; Glass; Gold; Instruments; Temperature; Wastewater treatment; acidic waste water; flux; hollow fiber membrane; membrane distillation;
Conference_Titel :
Control, Automation and Systems Engineering, 2009. CASE 2009. IITA International Conference on
Conference_Location :
Zhangjiajie
Print_ISBN :
978-0-7695-3728-3
DOI :
10.1109/CASE.2009.135
