Low-cost inorganic cation exchange membrane for electrodialysis: optimum processing temperature for the cation exchanger

Low-cost and anti-degradation ion-exchange membrane named ETFE-g-poly(AA-co-SSS) with bifunctional groups prepared by the pre-irradiation grafting method.

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Novel low-cost cation exchange membrane containing hydrophilic cross-linked structure for enhanced electrodialysis properties

Journal of the Taiwan Institute of Chemical Engineers ◽

10.1016/j.jtice.2019.04.016 ◽

2019 ◽

Vol 100 ◽

pp. 269-276 ◽

Cited By ~ 3

Author(s):

Jinli Zhao ◽

Jianyou Wang ◽

Luqin Sun ◽

Qingbai Chen ◽

Huixia Lu

Keyword(s):

Cation Exchange ◽

Low Cost ◽

Cation Exchange Membrane ◽

Exchange Membrane

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Assessing plant-available potassium in soil using cation exchange membrane burial

Canadian Journal of Soil Science ◽

10.4141/cjss96-026 ◽

1996 ◽

Vol 76 (2) ◽

pp. 191-194 ◽

Cited By ~ 17

Author(s):

P. Qian ◽

J. J. Schoenau ◽

K. J. Greer ◽

Z. Liu

Keyword(s):

Cation Exchange ◽

Low Cost ◽

Cation Exchange Membrane ◽

Soil Types ◽

Alkaline Soil ◽

Mixed Solution ◽

K Uptake ◽

Availability Analysis ◽

Wide Range ◽

Exchange Membrane

We assessed a method for extraction of plant-available potassium using a cation exchange membrane (CEM) burial technique. The study compared the amounts of K extracted by CEM burial with three reference chemical-based extractants for 19 soil samples representing a wide range of soil types in Saskatchewan, Canada and the People’s Republic of China. The three reference extractants were (1) 1 M NH4OAc, (2) a mixed solution of 0.01 M EDTA, 0.25 M NaHCO3 and 0.01 M NH4F and (3) 1 M HNO3. Potassium extractable by 1 M NH4OAc ranged from 37 mg kg−1 to 1889 mg kg−1 among the 19 soils. The K availability as predicted by CEM was significantly correlated with the reference methods with the strongest relationship (r2 = 0.94, P < 0.001) with the EDTA-NH4F test. To evaluate the relative ability of CEM and the conventional tests to predict K availability to plants, canola and wheat were grown on the 19 soils in the growth chamber and plant K uptake was compared with test-predicted K availability. All test methods revealed a similar ability to predict K availability with good correlation (r2 = 0.70, P < 0.001) with plant uptake. However, the CEM method showed its advantages in predicting plant availability in a variety of soil types with large coefficients of determination in both acidic and neutral to alkaline soil groupings. The CEM burial technique could be readily adopted in soil K availability analysis because of low cost and simplicity as well as its consistency over a wide range of soil types. Key words: Cation exchange membrane, burial technique, extraction, plant K availability, plant K uptake, soil test

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Improvement of HI concentration performance for hydrogen production iodine–sulfur process using crosslinked cation-exchange membrane

Chemical Engineering Science ◽

10.1016/j.ces.2021.116575 ◽

2021 ◽

Vol 237 ◽

pp. 116575

Author(s):

Nobuyuki Tanaka ◽

Shin-ichi Sawada ◽

Tetsuya Yamaki ◽

Takehide Kodaira ◽

Takehiro Kimura ◽

...

Keyword(s):

Hydrogen Production ◽

Cation Exchange ◽

Cation Exchange Membrane ◽

Exchange Membrane

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Evaluation of Electrodialysis Desalination Performance of Novel Bioinspired and Conventional Ion Exchange Membranes with Sodium Chloride Feed Solutions

Membranes ◽

10.3390/membranes11030217 ◽

2021 ◽

Vol 11 (3) ◽

pp. 217

Author(s):

AHM Golam Hyder ◽

Brian A. Morales ◽

Malynda A. Cappelle ◽

Stephen J. Percival ◽

Leo J. Small ◽

...

Keyword(s):

Ion Exchange ◽

Cation Exchange ◽

Current Density ◽

Feed Solution ◽

Laboratory Scale ◽

Cation Exchange Membrane ◽

Limiting Current ◽

Ion Exchange Membranes ◽

Experimental Apparatus ◽

Exchange Membrane

Electrodialysis (ED) desalination performance of different conventional and laboratory-scale ion exchange membranes (IEMs) has been evaluated by many researchers, but most of these studies used their own sets of experimental parameters such as feed solution compositions and concentrations, superficial velocities of the process streams (diluate, concentrate, and electrode rinse), applied electrical voltages, and types of IEMs. Thus, direct comparison of ED desalination performance of different IEMs is virtually impossible. While the use of different conventional IEMs in ED has been reported, the use of bioinspired ion exchange membrane has not been reported yet. The goal of this study was to evaluate the ED desalination performance differences between novel laboratory‑scale bioinspired IEM and conventional IEMs by determining (i) limiting current density, (ii) current density, (iii) current efficiency, (iv) salinity reduction in diluate stream, (v) normalized specific energy consumption, and (vi) water flux by osmosis as a function of (a) initial concentration of NaCl feed solution (diluate and concentrate streams), (b) superficial velocity of feed solution, and (c) applied stack voltage per cell-pair of membranes. A laboratory‑scale single stage batch-recycle electrodialysis experimental apparatus was assembled with five cell‑pairs of IEMs with an active cross-sectional area of 7.84 cm2. In this study, seven combinations of IEMs (commercial and laboratory-made) were compared: (i) Neosepta AMX/CMX, (ii) PCA PCSA/PCSK, (iii) Fujifilm Type 1 AEM/CEM, (iv) SUEZ AR204SZRA/CR67HMR, (v) Ralex AMH-PES/CMH-PES, (vi) Neosepta AMX/Bare Polycarbonate membrane (Polycarb), and (vii) Neosepta AMX/Sandia novel bioinspired cation exchange membrane (SandiaCEM). ED desalination performance with the Sandia novel bioinspired cation exchange membrane (SandiaCEM) was found to be competitive with commercial Neosepta CMX cation exchange membrane.

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