Performance of Nanofiltration and Reverse Osmosis Membranes in Metal Effluent Treatment

刘飞妮; 张国亮; 孟琴; 章宏梓

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Performance of Nanofiltration and Reverse Osmosis Membranes in Metal Effluent Treatment

Updated：2026-01-06

- Performance of Nanofiltration and Reverse Osmosis Membranes in Metal Effluent Treatment
- Chinese Journal of Chemical Engineering Vol. 16, Issue 3, Pages: 441-445(2008)
- Affiliations：
  
  1. College of Biological and Environmental Engineering, Zhejiang University of Technology,Hangzhou,China,310014
  2. College of Materials Science and Chemical Engineering, Zhejiang University,Hangzhou,China,310027
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2008
- Accepted：
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LIU Feini, ZHANG Guoliang, MENG Qin, ZHANG Hongzi. Performance of Nanofiltration and Reverse Osmosis Membranes in Metal Effluent Treatment[J]. , 2008, 16(3): 441-445.
DOI：

LIU Feini, ZHANG Guoliang, MENG Qin, ZHANG Hongzi. Performance of Nanofiltration and Reverse Osmosis Membranes in Metal Effluent Treatment[J]. , 2008, 16(3): 441-445. DOI：

摘要

Abstract

The performance of different nanofiltration(NF)and reverse osmosis(RO)membranes was studied in treating the toxic metal effluent from metallurgical industry.The characteristics and filtration behavior of the processes including the wastewater flux

salt rejection and ion rejection versus operating pressure were evaluated.Then the wastewater flux of RO membrane was compared with theoretical calculation using mass transfer models

and good consistency was observed.It was found that a high rejection rate more than 95% of metal ions and a low Chemical Oxygen Demand(COD)value of 10 mg·L

-1

in permeate could be achieved using the RO composite membrane

while the NF rejection of the salt could be up to 78.9% and the COD value in the permeate was 35 mg·L

-1

. The results showed that the product water by both NF and RO desalination satisfied the State Reutilization Qualification

but NF would be more suitable for large-scale industrial practice

which offered significantly higher permeate flux at low operating pressure.

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