热活化过硫酸盐氧化修复柴油污染土壤

发布时间：2018-03-26 03:03

  本文选题：硫酸根自由基　切入点：柴油　出处：《环境污染与防治》2017年10期

【摘要】：采用热活化过硫酸盐法,考察了过硫酸盐浓度、温度、水土比和初始pH对柴油污染土壤氧化修复的影响,并分析了其动力学和热力学参数。结果表明,当Na2S2O8摩尔浓度为0.8mmol/g、温度为70℃、水土比为2.0mL/g、初始pH为11.00时,反应72h后的柴油降解率最高,达到77.85%。动力学和热力学分析表明,热活化过硫酸盐氧化降解柴油过程为自发、吸热、熵增的过程,表观活化能为-80.73kJ/mol。
[Abstract]:The effects of persulfate concentration, temperature, water / soil ratio and initial pH on oxidation and remediation of diesel-contaminated soil were investigated by thermal activated persulfate method. The kinetic and thermodynamic parameters were analyzed. When the molar concentration of Na2S2O8 is 0.8 mmol / g, the temperature is 70 鈩，

本文编号：1666049