Bipolar membrane electrodialysis device and method for treating sodium sulfate wastewater by using same
A technology of bipolar membrane electrodialysis and electrodialysis, which is applied in electrodialysis, separation methods, water/sewage treatment, etc., can solve the problems of not realizing the maximization of economic value, and achieve convenient storage and application, and a large amount of wastewater treatment , high economic value
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Embodiment 1
[0150] Example 1 Bipolar membrane metathesis five-chamber electrodialysis device
[0151] Add respectively corresponding solutions in each water tank of the device, wherein: adding 2L concentration is the sodium sulfate solution of 0.1mol / L (usually 0.05-0.2mol / L) in the water tank of the pole chamber; 1% (usually 1-5%) HCl solution; add 1mol / L (usually 1-3mol / L) ammonium chloride solution to the ammonium chloride chamber water tank; add 1% mass concentration to the ammonium sulfate chamber water tank (usually 1-5%) ammonium sulfate solution; add 0.5mol / L (usually 0.5-1.5mol / L) sodium sulfate waste water in the sodium sulfate chamber water tank, add mass concentration in the alkali chamber water tank and be 1% (usually 1-5%) sodium hydroxide solution;
[0152] Then turn on the circulation pump corresponding to each water tank, that is, turn on the circulation pump arranged on the conduit connecting each water tank and the corresponding compartment in the membrane stack, adjus...
Embodiment 2
[0164] Except that the direct current power supply is turned on for electrodialysis, and the control voltage is constant at 12V during the metathesis reaction, the rest are the same as in Example 1, and the measurement results are shown in Table 1.
Embodiment 3
[0166] Except that the DC power supply is turned on for electrodialysis and the control voltage is constant at 15V during the metathesis reaction, the rest are the same as in Example 1, and the measurement results are shown in Table 1.
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