Study on hypochlorite degradation of aromatic polyamide reverse osmosis membrane

By Guodong Kang, Cong-jie Gao, Wei-dong Chen, Xingming Jie, Yiming Cao, Q. Yuan. 2007

353 citations recorded by the source corpus.

Subfields: Biomedical Engineering, Electrical and Electronic Engineering, Water Science and Technology

View Paper: https://www.semanticscholar.org/paper/31e52e12747714ef957135cf0b11d1cee27d8dff

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In Biomedical Engineering

In Electrical and Electronic Engineering

In Water Science and Technology

Citations in the corpus

Surface coating on the polyamide TFC RO membrane for chlorine resistance and antifouling performance improvement (2014, background): “It has been reported that the chlorine resistances of the aromatic polyamide ROmembranes can be improved by coating with polymers as protective layers [16–18], which cover the sensitive sites of aromatic polyamides or sacrificial layers [19,20], thereby protecting them from chlorine attack.”
Thin-film composite forward osmosis membranes functionalized with graphene oxide–silver nanocomposites for biofouling control (2017, background): “However, no pre-treatment can 65 completely eliminate biofouling, and it is well known that the polyamide layer of TFC 66 membranes undergoes degradation in the presence of chemical oxidants such as chlorine [8].”
Biocide application for controlling biofouling of SWRO membranes — an overview (2009, background): “The challenges using free chlorine as a biocide are related to its strong oxidation potential and possible chemical attack of the amide functional group in the polyamide RO membrane [41–44].”
Surface modification of nanostructured ceramic membranes for direct contact membrane distillation (2009, background): “Furthermore, the rate of chlorine attack should theoretically be higher at more alkaline pHs, however the loss of hydrophobicity (taken as an indicator of chlorine attack) in each case was relatively independent of solution pH. Although the mechanism of chlorine attack on RO membranes is complex, it”
Recent advances in polymer and polymer composite membranes for reverse and forward osmosis processes (2016, background): “[218-226] Current SWRO desalination requires chlorination-dechlorination-rechlorination; in which the extra dechlorination and rechlorination steps increase chemical use, energy consumption and operation cost.”