Method for increasing performance of reverse osmosis membrane
A technology of reverse osmosis membrane and performance, which is used in reverse osmosis, semi-permeable membrane separation, chemical instruments and methods, etc. Permeable membrane operating costs and other issues, to achieve the effect of reducing the frequency of pollution, improving the desalination rate and water flux, and reducing the cost
Inactive Publication Date: 2017-01-25
VONTRON MEMBRANE TECH CO LTD
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The invention relates to the technical field of reverse osmosis membrane performance improving, in particular to a method for increasing the performance of a reverse osmosis membrane. The method includes: using a pickling agent to perform acid pickling on the reverse osmosis membrane after interface polymerization is completed, then using a chemical surface treating agent to perform chemical surface treatment, and using a humectant to perform moisturizing treatment on the reverse osmosis membrane. The method has the advantages that the charge density and chemical components of the polyamide desalting layer of the reverse osmosis membrane can be precisely regulated, the desalting rate and water flux of the reverse osmosis membrane are improved at the same time, the hydrophilicity of the reverse osmosis membrane is increased, pollution occurrence frequency is lowered, the cleaning recovery ability of the reverse osmosis membrane during the actual operation of the reverse osmosis membrane is increased, the defect of an imperfect desalting layer network structure caused by the interface polymerization is overcome, the content of residual monomer is reduced, the desalting rate is increased by 0.5%, and the flux is increased by 20-60%.
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Residual monomerHydrophily +6
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