Bipolar membrane is a kind of ion exchange membrane with special functions. Hydrolysis happens and produces H+ and OH– in the middle region of the membrane under the influence of external electric field. Bipolar membrane electrodialysis technology makes this particular function in composite to ordinary electrodialysis to realize the production and regeneration of acid/alkali. The application of bipolar membrane electrodialysis technology can not only achieve the conversion of organic acid salt or organic alkali salt, but also produce NaOH or HCl, which can be used in the production process. The bipolar membrane electrodialysis will play an increasingly important role in clean production and resource recycling.
Main technical indexes of bipolar membrane
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Bipolar membrane
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Product type
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TWBPI
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Thickness
（mm）
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0.18～0.23
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water content
（%）
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20～30
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Water dissociation voltage（V,100MA/cm2，25℃）
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≤1.8
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Water dissociation efficient（25℃,0.5M Na2SO4）
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≥0.97
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Application: organic acid production ,reuse of salty water ,etc.
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Application:
Organic salts produce organic acid base / inorganic salts to produce inorganic acids and bases
Ferrate preparation
Chemical synthesis in organic phase
Treatment of uranium processing wastewater
Regeneration of sodium sulfate in the production of rayon
Gas absorption
Extraction and transformation of organic acids in fermentation broth
Precipitation separation of soybean protein isolate
Production of caseinate
Juice stabilization
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