中文摘要：

研究了采用液电等离子体降解含酚废水的模型物2，4-二硝基苯酚及液电等离子体降解含酚废水过程．研究发现，在16kv下反应30min，2，4-DNP基本被降解．废水经过液电等离子体降解后，形成等离子体酸类物质，其pH值降到3．30左右，电导率增加到300μS／cm．废水的初始电导率增加会抑制液电等离子体放电过程；其初始pH值在4．00左右时，降解率最高；空气流速对2，4-DNP降解的影响不大，鼓入大量空气可提高气液传质，利于酚类降解．

英文摘要：

The degradation process of the model compound in phenols wastewater, 2,4-dinitrophenol （2,4-DNP）, was studied by hydro-electric plasma. The results showed that 2,4-DNP was degraded basically at a discharge voltage of 16 kV for 30 rain. A kind of plasma acidic substances was formed after hydro-electric plasma degraded, and the pH of wastewater decreased to about 3.30,the conductivity increased to 300μS/cm. The discharge process of hydro-electric plasma would be inhibited by the increasing of initial conductivity. The degradation rate of 2,4-DNP would decrease with the decrease of initial pH, and the degradation rate was highest at the initial pH of 4.00. The air-flow rate has little affect on the degradation, but enough air will improve the gas-liquid mass transfer and benefit the degradation of phenols.