Separation Performance Characterization of ’The NF Membrane With Dye Desalination
[1]ZHANG Hao-qin,QIN Guo-sheng,ZHANG Qiu-nan,et al.Separation Performance Characterization of ’The NF Membrane With Dye Desalination[J].Journal of Zhengzhou University (Engineering Science),2015,36(03):73-76.[doi:10.3969/ j. issn.1671 -6833.2015.03.016]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
36卷
Number of periods:
2015 03
Page number:
73-76
Column:
Public date:
2015-06-30
- Title:
- Separation Performance Characterization of ’The NF Membrane With Dye Desalination
- Keywords:
- digital inkjet printing; dye desalination ; nanofiltration
- CLC:
- TQ028.8
- DOI:
- 10.3969/ j. issn.1671 -6833.2015.03.016
- Abstract:
- The purification of domestically commercial dye for digital inkjet printing has an important signifi-cance since it mainly relies on the import at present. The separation performance of the NF membrane with dyedesalination prepared by our research laboratory was evaluated in pilot scale. For the mixed solution of reactivered/ NaCl/water,the rejection of reactive red by the membrane was higher than 99.5 %,meanwhile the rejec-tion of NaCl by the membrane was negative,and also the permeation flux is higher than 35 L ·m -2·h -1.MPa -1. The permeation flux of membrane increased with the operating differential pressure,but the selectivityof membrane decreased slightly. The results show that the desalting efficiency of organics can be improved bysimultaneously introducing positive and negative charge in membrane.
- References:
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- Similar References:
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