科研之友
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摘要
In order to satisfy the processing requirements of refractory organic matters, we proposed a design of gas-liquid two-phase pulsed discharge reactor with nozzle-cylinder electrode. In order to reduce cost and facilitate observation of discharges, the cylindrical reactor is made of transparent plexiglass, and it is equipped with a nozzle electrode and a cylindrical electrode, both made of stainless steel. We tested the reactor and observed relatively uniform gas-liquid two-phase discharges on solution surface. We prepared simulated dye wastewater using azo dye acid orange II, and tested the reactor's effectiveness in processing this solution. The results show that acid orange II in the simulated wastewater was effective degraded in the reactor. Increasing the reactor's peak applied voltage from -26 kV to -36 kV, the degradation rate of acid orange II rose by 10%, while the output of O3, which plays an important role in degrading acid orange II, increased by 6 mg/L. With 30-minutes discharge at peak voltage of -36 kV, repetitive pulse frequency of 50 Hz, and zero gap distance between the discharge nozzle electrode and solution surface, the proposed reactor reached energy efficiency of 2.05×10-3mol/J. The conclusions provided an experimental foundation for further studies on the discharge effect of multi-nozzle-cylinder discharge plasma systems.
- 出版日期2015
- 单位上海海事大学
