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Research on sweeping gas membrane distillation of Material Liquid with pulsatile flow

Authors： ZHANG Dashuai, LI Chen, ZHANG Xiaopeng, WU Di, Xiong Yuqin, LIN Qiang, SHI Zaifeng

Units： Key Laboratory of Water Pollution Treatment & Resource Reuse, College of Chemistry and Chemical Engineering Hainan Normal University, Haikou 571158

KeyWords： gas-liquid; SGMD; flux enhancement ratio; thermal efficiency

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2018,38(3):91-96

Abstract：

?PVDF membrane module is used to investigate the effect of steady flow(SSGMD), pulse flow(PSGMD), gas-liquid two-phase flow(GSGMD) and pulse flow & gas-liquid two-phase flow (P&G SGMD) on the performance of sweeping gas membrane distillation (SGMD) process with seawater as the feed. The SGMD process was applied to membrane distillation, the effect of feed temperature (Tf-in) and feed flow (Qf) operation parameters on the membrane flux(J). The impact of different optimization methods on permeate flux, membrane fouling, thermal efficiency were studied individually. The results show that the membrane flux(J) increases with the increase of feed temperature (Tf-in) and feed flow (Qf) on the SSGMD. Results of strengthening contrast experiments indicated that the optimal flux enhancement effect could be the GSGMD, its thermal efficiency was 49.21%, membrane has the least fouling

Funds：

国家自然科学基金青年基金项目（21601043）；海南省重点研发计划项目（ZDYF2017011）；海南省重大科技计划项目（ZDKJ2016022）；海南省自然科学基金（217100）和海南省自然科学基金（217101）

AuthorIntro：

张大帅(1985- )，男，吉林省长春市人，博士生，研究方向为膜蒸馏海水淡化与污水处理，E-mail：zdw198562@163.com. *通讯作者，E-mail: zaifengshi@163.com.

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