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

fYear

2009

fDate

11-12 July 2009

Firstpage

489

Lastpage

492

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Automation and Systems Engineering, 2009. CASE 2009. IITA International Conference on

Conference_Location

Zhangjiajie

Print_ISBN

978-0-7695-3728-3

Type

conf

DOI

10.1109/CASE.2009.135

Filename

5194498