多相催化-臭氧氧化法处理模拟有机磷农药废水

实验通过臭氧氧化法来降解模拟废水中的有机磷农药,将其转化为无害物质,并试验研究了在废水中加入2种自制的催化剂对降解结果的影响。采用气相色谱法测定水中有机磷农药的量。结果表明,只用臭氧处理的情况下1周后有机磷的去除率为78.03%;在催化剂A存在下,去除率可达93.85%;在催化剂B存在下,去除率可达为88.35%。结果表明,臭氧氧化法对此类污水具有较好的降解作用,尤其在有催化剂存在的情况下处理效果更好,在室温和中性介质中均属于一级反应。

Multiphase catalytic oxidation of organic phosphorus wastewater by ozone

The degradation of wastewater containing organic phosphorus pesticides by ozone and turning them into harmless substances are carried out.The effect of two kinds of catalysts made in laboratory are also investigated.The content of organic phosphorus pesticide was measured by gas chromatography.The results shown that after treated for one week,the removal rate of organic phosphorus pesticides is 78.03% when the wastewater is only handled by ozone;and is 93.85 percent with catalyst A;and the removal rate is 88.35 percent with catalyst B.The results also indicate that ozone has a good degrading property for organic phosphorus pesticides,when there is catalyst,the removal effect is better than that of when there is only ozone.The results indicate that the degrading reaction is first order reaction in neutral medium at room temperature.