Study on Multi-Effect Membrane Distillation |
Authors: QIN Yingjie*, LIU Liqiang, HE Fei, Zhang Yanping, WU Yin, WANG Shichang |
Units: Tianjin University |
KeyWords: Multi-effect membrane distillation; water gained output ratio; seawater desalination; concentrated brine; concentration; multi-effect |
ClassificationCode:TQ028.8 |
year,volume(issue):pagination: 2012,32(2):59-64 |
Abstract: |
An experimental investigation was carried out on concentrating aqueous solution containing 0.1– 20% sodium chloride by using multi-effect membrane distillation (MEMD) device. Influences of various experimental conditions on water permeate flux, water gained-output-ratio (GOR) and rejection of salt were studied. The experimental result showed that the water permeation flux increased with increase of the feed inlet flow rate, and increased with increase of the heated feed temperature; the water GOR also increased with increase of the heated feed temperature, however, it slightly decreased with increase of the feed inlet flow rate; both the water permeate flux and water GOR decreased with increase of the concentration of sodium chloride in the feed solution; the rejection of salt was hardly affected by these factors. The water permeate flux could reach 6.8L/(m2.h) and the water GOR could reach 12.5 when the concentration of sodium chloride in the feed solution was low; when the salt concentration was higher than 15%, the water permeate flux was still more than 5.2L/(m2.h) and the water GOR was more than 6.2, the rejection of salt could reach 99.99%. Thus multi-effect membrane distillation process could efficiently deal with concentrated aqueous solution. |
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AuthorIntro: |
秦英杰 (1964- ),男, 河北乐亭人,博士,天津大学化工学院,教授,博导,从事膜分离和废水处理研究;电邮:yqin@chembrane.com,电话:022 27890430, 13920403901 |
Reference: |
(1)任一峰,刘尔静,等. 海水淡化的热法技术及其应用[J],发电设备, 2009,23(2):147-150 (2)赵春霞,顾平,等. 反渗透浓水处理现状与研究进展[J],中国给水排水, 2009,25(18):1-5 (3)E. Drioli, Y. Wu, Membrane distillation: an experimental study, Desalination ,53 (1985): 339-340. (4)E. Drioli, Y. Wu, V. Calabro, Membrane distillation in the treatment of aqueous solutions, J. Membr. Sci. 33 (1987): 277-278 (5)唐娜,陈明玉,等. 海水淡化浓盐水真空膜蒸馏研究[J],膜科学与技术, 2007,27(6):93-96 (6)J. Gilron, L. M Song, and K. K. Sirkar, Design for Cascade of Crossflow Direct Contact Membrane Distillation, Ind. Eng. Chem. Res. 2007, 46(8):2324-2334 (7)L. M. Song, B. A. Li, and K. K. Sirkar, Direct Contact Membrane Distillation-Based Desalination: Novel Membranes, Large-Scale Studies, and a Model , J. Membr. Sci . 46 (2007) : 2307-2323 (8)Z. Wang, F. Zheng, and S. C. Wang. Experiment study of membrane distillation with brine circulated in the cold side, J. Membr. Sci . 183 (2001) : 171-179 (9)W. L. Gore, R. W. Gore, D. W. Gore, Desalination Device and Process, US Patent 4,545,862. (10) J. Koschikowski, M. Wieghaus, and M. Rommel., Solar Thermal-Driven Desalination Plants Based on Membrane Distillation, Desalination 156 (2003) 295-304 (11)J. Koschikowski, M. Wieghaus, and M. Rommel. Experimental investigations on solar driven stand-alone membrane distillation systems for remote areas. Desalination. 251 (2010): 125–131 (12) J. H. Hanemaaijer, and J. W. Heuven, Method for the purification of a liquid by membrane distillation, in particular for the production of desalinated water from seawater or brackish water or process water, US Patent 6716355, 2004 (13) G.W. Meindersma, C.M. Guijt, and A. B. Haana. Desalination and water recycling by air gap membrane distillation. Desalination. 187 (2006): 291–301 (14) C. M. Guijt, G. W. Meindersma, T. Reith, A. B. Haan, Air Gap Membrane Distillation 1. Modeling and Mass Transport Properties for Hollow Fibre Membranes, Separation and Purification Technology, 43 (2005) 233-244. (15) C. M. Guijt, G. W. Meindersma, T. Reith, A. B. Haan, Air Gap Membrane Distillation 2. Model Validation and Hollow Fibre Module Performance Analysis, Separation and Purification Technology 43 (2005) 245-255. (16)L.-H. Cheng, P.-C. Wu, and J.-H. Chen, Numerical Simulation and Optimal Design of AGMD-Based Hollow Fiber Modules for Desalination, Ind. Eng. Chem. Res. 2009, 48, 4948-4959 |
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