【摘要】 采用热活化过硫酸钾的方法氧化降解呋虫胺废水,通过高效液相色谱仪检测其残留浓度,探讨过硫酸钾降解呋虫胺的反应动力学。结果表明,呋虫胺的氧化降解符合一级动力学模型,随着温度的升高和氧化剂浓度的升高其降解速率逐渐增加。在pH值=8.0、温度为70℃、过硫酸钾浓度为10 mmol/L时,呋虫胺的降解反应速率常数k为0.0303 min^-1,半衰期(t_1/2)为22.8761min。呋虫胺降解的反应活化能Ea=133.489k J/mol。更多还原

【Abstract】 In this paper,dinotefuran has been degraded by thermal activation of potassium sulfate method in waste water.The residual concentration of dinotefuran is determined by high performance liquid chromatography,moreover the reaction kinetics of dinotefuran is explored.The results show that the oxidative degradation of dinotefuran conforms to the first-order kinetic model,and the degradation rate increases gradually with temperature and oxidant concentration increased.Under pH 8.0,the reaction temperature of 70℃ and potassium sulfate concentration of 10 mmol/L,the rate constant k of dinotefuran degradation reaction is 0.0303 min^-1 and half-life(t_1/2) is 22.8761 min.The reaction activation energy of dinotefuran degradation is 133.489 kJ/mol.更多还原