膜科学与技术

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Design of membrane distillation module with energy recovery and study on the performance for desalination

Authors： GENG Hongxin1,2,XU Yiming3, LI Pingli1,2,HUANG Yiping3,WU Haoyun1,2,CHENG Yingcai3 ,LU Xiaoyong3

Units： 1.School of Chemical Engineering and Technology，Tianjin University，Tianjin 300072，China； 2.Tianjin Key Laboratory of Membrane Science and Desalination Technology，Tianjin University，Tianjin 300072，China；3. Building installation engineering of China CO., LTD Najing 210046 China

KeyWords： energy recovery；membrane distillation；saline water concentration

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2014,34(2):85-89

Abstract：

In view of the lower thermal efficiency、high energy consumption of membrane distillation process，a new membrane module with energy recovery has been designed，the membrane module consists of hollow fiber membranes、heat exchange tubes and plastic wire mesh.The energies are recycled by the heat exchange tubes，and the hollow fiber membrane and heat exchange tubes are divided by the plastic wire mesh in order to reduce the heat conduction loss in membrane distillation process.An experimental investigation was carried out on concentrating aqueous solution containing 3.0% sodium chloride by using the membrane modul.The effects of the ratio of the hollow fiber membrane and heat exchange tubes、the air-gap thickness and the length of the membrane module on the water permeat flux、water gained-output-ratio(GOR) and thermal efficient were studied.The experimental results showed that when the feed temperature T1 was 40.0℃、T3 was 90.0℃ ，the feed flow flux was 10.0L/h，the Nd/Nm was 2:1，the length of membrane module was 0.85m，the air-gap thickness was 0.5mm，then the water permeat flux was up to 3.1L/(m2.h)，GOR was 4.3 and the thermal efficient was up to 85%.

Funds：

AuthorIntro：

耿洪鑫（1987—），男，山东潍坊，硕士研究生，天津大学，研究方向为膜分离过程研究，E-mail：genghongxin2008@126.com；李凭力，男，博士，天津大学，副研究员，主要研究方向为萃取精馏、海水淡化、膜技术、生物质能源，联系电话：（022）27405902，E-mail：tdlpl@163.com

Reference：

[1] 王学松.现代膜技术及应用指南[M].北京:化学工业出版社，2005.
[2] 贾立庄，杨晓宏，田瑞.新型多层并接式膜组件的设计研究[J].膜科学与技术.2011,31(1):101-104.
[3]刘立强，何菲，刘丹丹等.一种具有高效内部换热功能的多效膜蒸馏装置[P].中国专利：CN 201930724 U，2010.12.02.
[4]阎建民，袁其朋，马润宇.用缠绕式膜组件强化传递过程的研究[J].膜科学与技术.2001,21(4):13-16.
[5]吕晓龙.多效膜蒸馏装置与方法[P], 中国专利：CN 102107119 A，2009.12.23.
[6]李凭力，吴浩赟，耿洪鑫等.一种中空纤维膜蒸馏器[P]，中国专利：CN 202876661U，2012.07.03.
[7] Guijt CM，Meindersma GW，Reith T ，etal.Air gap membrane distillation 1.Modelling and mass transport properties for hollow fibre membranes[J]. Sep Purif Technol. 2005，43:233-244.
[8] Guijt CM，Meindersma GW，Reith T，etal.Air gap membrane distillation 2. Model validation and hollow fiber module performance analysis [J].Sep Purif Technol. 2005，43:245-255.
[9] Lee Hanyong，He Fei，Song Liming，etal.Desalination with a cascade of cross-flow hollow fiber membrane distillation devices integrated with a heat exchanger[J].AIChE J，2011，57:1780-1795.

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