膜科学与技术

Position：Home >> Abstract

Research on repairing technology of PVDF hollow fiber membrane repair technology

Authors： HU Yue1, ZHANG Qinglei1*,LU Yanbin2, PENG Xingzheng2, YU Lili1,SU Zhipeng1

Units： 1. Beijing OriginWater Membrane Technology Co., Ltd.，Beijing 101400 China； 2. Beijing OriginWater Separation Membrane Technology Co., Ltd.，Beijing 101400 China

KeyWords： PVDF； hollow fiber membrane；membrane repair；recycling

ClassificationCode：X799

year,volume(issue):pagination： 2021,41(4):110-116

Abstract：

The membrane material will be discarded in advance because its functional layer is damaged during operation. In order to solve the problem of membrane materials being discarded in advance, a PVDF hollow fiber membrane repair technology has been developed. A self-made microfiltration membrane repair solution for repairing functional layer damage was used to repair the membrane. The repair method is the microsphere adsorption method. The effects of suction time, suction pressure, post-treatment temperature, post-treatment time on the properties of membrane were investigated, and the optimum process conditions were determined. After repair, the surface of the membrane is smooth and flat, and the operation pressure is more stable. Compared with pressure of unrepaired membrane, the operating pressure decreased by 79.4%, the rejection rate of 600000 PEO increased by 19.2%, and the water contact angle decreased by 28.4%.

Funds：

北京市博士后（青年英才）科研活动经费资助创新研发A类（JCQNJC1308800）。

AuthorIntro：

胡月（1995-），女，河北省邢台人，研究生，硕士，超微滤膜的修复与开发

Reference：

[1]雷荣荣. 地表水环境监测进展问题分析[J].当代化工研究,2020,35(17):106-107.
[2]方志杰,刘建文,马满英.MBR技术在工业废水处理应用中的研究进展[J].广州化工,2019,47(16):23-26.
[3]Zhang J S,Liu J. Application of integrated MBR in a centralized WTP for a chemical industrial park: A case study in China[J]. Water Practice & Technology,2018,13(3):594-598.
[4]Shamima M, Harish R, Linhua F, et al. Application of enhanced membrane bioreactor (eMBR) for the reuse of carwash wastewater[J]. J. Environ. Manage.,2020,254(15):1-11.
[5]顾维娣,田艺苑,陈莹蕾,等. 聚偏氟乙烯再生膜的制备与性能研究[J].膜科学与技术,2016,36(05):47-52.
[6]李云东, 刘波, 孙雁, 等. 超声波技术在MBR膜污染控制领域的应用及研究[J].膜科学与技术, 2021,1-20.
[7]王贤荣, 吕晓龙, 刘嘉铭, 等. 聚偏氟乙烯超疏水分离膜的制备[J]. 功能材料, 2013, 43 (8): 1056-1060.
[8]张庆磊, 吕晓龙, 杨士春, 等. 聚偏氟乙烯分离膜的亲水改性[J]. 膜科学与技术, 2012, 30 (4): 17-20.
[9]Zhang R , Liu Y , He M , et al. Antifouling membranes for sustainable water purification: strategies and mechanisms[J]. Chem. Soc. Rev. , 2016, 45(21): 5888-5924.
[10]Kravets L I , Gilman A B , Dinescu G . Modification of polymer membrane properties by low-temperature plasma[J]. Russ. J. Gen. Chem. , 2015, 85(5): 1284–1301.
[11]陈亦力,李新涛,张思强,等. 一种中空纤维膜的低浓度纺丝废液回收装置及方法[P]. 北京：CN105502781A,2016-04-20.
[12]肖长发, 王新亚,潘健,等. 废弃PVDF中空纤维膜处理及回用方法[P]. 天津：CN106589447A,2017-04-26.

Service：

【Download】【Collect】

《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone：010-80492417/010-80485372; Fax：010-80485372 ; Email：mkxyjs@163.com