Development of a chlorine-resistant polyamide reverse osmosis membrane

Shintani, Takuji; Matsuyama, Hideto; Kurata, Naoki

doi:10.1016/j.desal.2006.08.009

Cited by 112 publications

(58 citation statements)

References 12 publications

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“…The support membrane was prepared by the same method used in the previous work. 5 A solution of 18 wt % PSf in N,N-dimethylformamide was cast onto a glass plate with an applicator with a 254-lm gap. The glass plate was immediately immersed in a water bath at room temperature.…”

Section: Membrane Preparationmentioning

confidence: 99%

“…5 Salt rejection and water permeability were measured under the condition of pH 5 6.5-7 at 258C with a common continuous pump-type RO apparatus under an applied pressure of 1.0 MPa. The solutes used for the rejection tests were NaCl (weight-average molecular weight 5 58), Na 2 SO 4 (142), MgCl 2 (94), MgSO 4 (120), NH 4 SO 3 (80), ethanol (46), and isopropyl alcohol (60).…”

Section: Flat Membrane Performancesmentioning

confidence: 99%

“…6 Compared with this polyamide, the polyamide synthesized from N,N 0 -DMMPD showed much higher chlorine resistance. 5 The polyamide synthesized from N-phenylethylenediamine (N-PED) had lower chlorine resistance than that from N,N 0 -DMMPD. However, it still had high chlorine resistance.…”

Section: Introductionmentioning

confidence: 99%

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Development of a chlorine‐resistant polyamide nanofiltration membrane and its field‐test results

Shintani

Matsuyama

Kurata

et al. 2007

J of Applied Polymer Sci

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For the development of chlorine-resistant nanofiltration membranes, a thin-film-composite membrane was prepared by the interfacial polymerization of N-phenylethylenediamine and 1,3,5-benzenetricarbonyl trichloride on a microporous polysulfone support substrate. The polymerization on the substrate surface was confirmed by Fourier transform infrared measurements, and membrane surface properties such as the roughness and f potential were characterized. Rejections of NaCl and isopropyl alcohol of the prepared membrane were 95 and 50%, respectively. The membrane showed much higher chlorine resistance than a commercial polyamide membrane when the membranes were immersed in an aqueous NaOCl solution. A field test was carried out with a spiral-type membrane module. Tap water was treated by this module for more than 70 days under the condition of continuous NaOCl injection. The prepared membrane module was quite stable, and no distinguished change in the rejection and flux was recognized.

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Section: Membrane Preparationmentioning

confidence: 99%

Section: Flat Membrane Performancesmentioning

confidence: 99%

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Development of a chlorine‐resistant polyamide nanofiltration membrane and its field‐test results

Shintani

Matsuyama

Kurata

et al. 2007

J of Applied Polymer Sci

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“…The experiments indicated that the chlorine resistance of the polyamides could be effectively improved by using aromatic diamines compounds with a mono Cl or CH 3 substituent at the ortho position of the amino group. Moreover, Shintania et al [21] investigated the chlorine resistance of polyamides synthesized using various diamines and acid chlorides. The results showed that the chlorine resistance generally increased in the order of polyamides synthesized from aromatic, cycloaliphatic and aliphatic diamines, respectively.…”

Section: Introductionmentioning

confidence: 99%

Aromatic-cycloaliphatic polyamide thin-film composite membrane with improved chlorine resistance prepared from m-phenylenediamine-4-methyl and cyclohexane-1,3,5-tricarbonyl chloride

Liu

Lü

et al. 2009

Journal of Membrane Science

111

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“…Subsequently, the salt rejection of the membrane decreases and the flux increases. The literatures also suggest non-MPD amines for chlorine-resistant membranes (Kawaguchi, 1984, Glater, 1994and Shintani, 2007. In this regard, a chlorineresistant CRM membrane has been developed using a non-MPD amine.…”

Section: Weftec®08mentioning

confidence: 99%

Chlorine Resistant Membrane and The Mechanism of Membrane Degradation by Chlorine

Koo¹,

Lee²,

Jung³

et al. 2008

proc water environ fed

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Polyamide reverse osmosis membrane used successfully for water desalination is made from the interfacial reaction of meta-phenylenediamine (MPD) with trimesoyl chloride. One problem with the membrane is that its performance is deteriorated upon prolonged exposure to chlorine often used for disinfecting feed water. ATR-FTIR and XPS analysis show chlorine reacts with the amide hydrogen and is attached to the polyamide membrane. A chlorine resistant membrane has been made using a non-MPD amine and appears to be five times as chlorine-resistant as the MPD-based membrane. ATR-FTIR and XPS analysis also show the chlorine-resistant membrane picks up chlorine much less than the MPD-based membrane upon exposure to chlorine. Monochloramine does not appear to affect adversely polyamide membranes.

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Development of a chlorine-resistant polyamide reverse osmosis membrane

Cited by 112 publications

References 12 publications

Development of a chlorine‐resistant polyamide nanofiltration membrane and its field‐test results

Development of a chlorine‐resistant polyamide nanofiltration membrane and its field‐test results

Aromatic-cycloaliphatic polyamide thin-film composite membrane with improved chlorine resistance prepared from m-phenylenediamine-4-methyl and cyclohexane-1,3,5-tricarbonyl chloride

Chlorine Resistant Membrane and The Mechanism of Membrane Degradation by Chlorine

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