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In order to evaluate the electrolytic decomposition process of ammonia, the effects of current density and chloride ion were investigated. The Ti/RuO2- Pt electrode was used as the anode, and Ti electrode as the cathode. The current densities, of 5mA/cm2, 10mA/cm2, and 15mA/cm2, were applied during electrolysis. It was indicated that the ammonia-nitrogen removal efficiency increased with the current...
The exploring work of using the synthetic diamond film electrode to degrade pollutants through electrochemical oxidation technology has become one of the most concerned research hot spots in the environmental electrochemistry fields. BDD film electrode is an innovative material having the widest electrochemical window and an excellent stability in an acid or alkali solution. BDD film electrode has...
This paper investigated the effect of ammonia-nitrogen to the removal of phenol by electrochemical oxidation in the Chloride System. The electrode of RuO2-Pt/Ti was used as the anode and a Ti plate as the cathode. The results of cyclic voltammetry experiments showed that the RuO2-Pt/Ti anode had no effect of the direct oxidation for both phenol and ammonia- nitrogen, which suggested that the intermediate...
Electrochemical process was developed for wastewater treatment of phenolic compounds. The most reactive hydroxyl radical was generated by electrochemical approach and could effectively degrade organic pollutants. The toxicity of wastewater was largely reduced. The degradation pathway was proposed.
An electrochemical heterogeneous catalytic process was applied to remove nitrobenzene from wastewater. Three key factors, including applied potential, supporting electrolyte concentration, and pH, were tested for their effects on the nitrobenzene removal. The optimal condition was determined as an applied potential of 40 V, Na2SO4 concentration of 500 mg L-1 and a pH of 10. Under the optimal condition,...
In this paper, the elimination of o-nitrophenol (o-NPh) in aqueous solutions by electrochemical oxidation at titanium-based bismuth-doped lead dioxide (Ti/Bi-PbO2 ) anode and carbon gas diffusion cathode (carbon GDC) was investigated. Four factors of the degradation, i.e. current density I, initial pH, electrolysis temperature T, air input A, were studied. Under the conditions of I = 20 mA/cm2, pH...
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