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Bipolar membrane electrodialysis
Function:
It can achieve the transformation from salt to corresponding acid and base.
Application scope:
Preparation of acid and alkali from inorganic salts such as sodium chloride, lithium sulfate, and sodium sulfate; Preparation of organic acids from organic acid salts such as sodium gluconate, sodium lactate, and potassium methionine; Preparation of organic bases from tetramethylammonium bromide.
Water inlet requirements for bipolar membrane electrodialysis system
(1) Inlet water temperature: 5-30 ℃;
(2) Influent SS: ≤ 1mg/L;
(3) Chromaticity: colorless or with a transmittance greater than 80%;
(4) Oil and surfactant: ≤ 0.1mg/L;
(5) Free from flocculent substances;
(6) Cannot contain highly polar organic solvents (especially ketones and benzene ring substances, with a requirement of ≤ 0.1mg/L), COD<100ppm;
(7) Cannot contain strong oxidizing or reducing substances (ORP absolute value ≤ 200mV);
(8) Total amount of divalent and above cations:<1ppm;
(9) Silicon content<10ppm;
(10) Extreme liquid requirement: COD<100mg/L; SS<1mg/L; Fluoride ions<2mg/L; Sodium hypochlorite concentration<0.5%.
It can achieve the transformation from salt to corresponding acid and base.
Application scope:
Preparation of acid and alkali from inorganic salts such as sodium chloride, lithium sulfate, and sodium sulfate; Preparation of organic acids from organic acid salts such as sodium gluconate, sodium lactate, and potassium methionine; Preparation of organic bases from tetramethylammonium bromide.
Water inlet requirements for bipolar membrane electrodialysis system
(1) Inlet water temperature: 5-30 ℃;
(2) Influent SS: ≤ 1mg/L;
(3) Chromaticity: colorless or with a transmittance greater than 80%;
(4) Oil and surfactant: ≤ 0.1mg/L;
(5) Free from flocculent substances;
(6) Cannot contain highly polar organic solvents (especially ketones and benzene ring substances, with a requirement of ≤ 0.1mg/L), COD<100ppm;
(7) Cannot contain strong oxidizing or reducing substances (ORP absolute value ≤ 200mV);
(8) Total amount of divalent and above cations:<1ppm;
(9) Silicon content<10ppm;
(10) Extreme liquid requirement: COD<100mg/L; SS<1mg/L; Fluoride ions<2mg/L; Sodium hypochlorite concentration<0.5%.