SEQUENTIAL SEPARATION-ADSORPTION MEMBRANE FOR REMOVAL OF MULTI-COMPONENT POLLUTANTS

XIE Jia; LIAO Zhi-peng; QI Jun-wen; WANG Chao-hai; LI Jian-sheng

doi:10.13205/j.hjgc.202107018

Volume 39 Issue 7

Jan. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(7): 139-144

XIE Jia, LIAO Zhi-peng, QI Jun-wen, WANG Chao-hai, LI Jian-sheng. SEQUENTIAL SEPARATION-ADSORPTION MEMBRANE FOR REMOVAL OF MULTI-COMPONENT POLLUTANTS[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(7): 139-144. doi: 10.13205/j.hjgc.202107018

Citation:

XIE Jia, LIAO Zhi-peng, QI Jun-wen, WANG Chao-hai, LI Jian-sheng. SEQUENTIAL SEPARATION-ADSORPTION MEMBRANE FOR REMOVAL OF MULTI-COMPONENT POLLUTANTS[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(7): 139-144. doi: 10.13205/j.hjgc.202107018

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SEQUENTIAL SEPARATION-ADSORPTION MEMBRANE FOR REMOVAL OF MULTI-COMPONENT POLLUTANTS

doi: 10.13205/j.hjgc.202107018

Key Laboratory of MIIT of New Membrane Material, College of Environment and Biology Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

Received Date: 2020-12-31
Available Online: 2022-01-18

Abstract

Abstract

Traditional membrane separation is unable to achieve simultaneous removal of multiple pollutants under low pressure. In this paper, the sequenced separation-adsorption dual-function ultrafiltration membrane(DFUM) was prepared by immobilizing ZIF-8 into the finger-like pores of the asymmetric ultrafiltration membrane for multiple pollutants simultaneous removal. Without changing the original membrane structure and retention performance of DFUM, the loading capacity of ZIF-8 nanoparticles could reach 2.87 mg/cm². The decontamination performance results showed that the sequenced structure could simultaneously remove humic acid and Cu²⁺ with removal rate of 95.4% and 97%, at a pressure of 1.6 bar and a flux of 45 L/(m²·h) and protected the process of Cu²⁺ removal from the interference of the coexisted humic acid; compared with the method of surface deposition, the effective removal volume of Cu²⁺ could be increased by three times by the DFUM. This study provided a novel strategy for excellent removal of multiple pollutants in water.
- dual-function ultrafiltration membrane,
- ZIF-8,
- heavy metal ions,
- humic acid,
- sequenced micro-interface

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References(14)

References

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