Electro-catalytic Oxidation on Boron-doped Diamond Electrode Coupling Electro-desorption for Humidity Condensate Wastewater Treatment in Manned Spacecraft
A new method of electro-catalysis oxidation on Boron Doped Diamond(BDD)electrode coupling electro-desorption for Humidity Condensate Wastewater(HCW)treatment was presented to solve the high power consumption problem caused by HCW's low conductivity.Mixing ion exchange resins which had been exchanged with salt was filled in the BDD electro-catalytic reactor.Under the effect of electric field,the ions on the resins were eluted and solved in HCW.The ions carried out adsorption,desorption and orientational motion,and the conductivity of HCW was improved which could reduce the cell voltage significantly.The ions were adsorbed by resins again when electro-catalysis ended.The Total Organic Carbon(TOC)removal efficiency was affected by Na2SO4,Na3PO4 and NaNO3 electrolytes,while with the increase of NaCl electrolyte concentration,the TOC removal efficiency was reduced.
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