【摘要】 研究了1.2%的H2O2以及10-2mol/L的NaNO3溶液体系中,γ辐照技术降解六氯苯的降解效果的差异,分析研究了其反应动力学方程;反应前后溶液体系的Cl-浓度;另外对γ辐照降解HCB的降解产物进行了研究.研究结果表明,5%的异丙醇和10-2mol/L的NaNO3溶液体系对γ辐照降解HCB具有抑制作用,而在低剂量下1.2%的H2O2对γ辐照降解HCB具有促进作用,空白采用一级动力学方程拟合效果最佳,异丙醇溶液体系拟合效果最差;γ辐照降解HCB的降解产物主要为氯苯类化合物,且反应体系中Cl-浓度是随着辐照剂量的增加而增加的,γ辐照技术能够有效地对六氯苯进行脱氯.更多还原

【Abstract】 In this study the effects of these inorganic additives to the degradation efficiencies of hexachlorobenzene(HCB)by γ irradiation and the change of the concentration of Cl-were investigated,and the kinetics of the reaction were researched.The results showed that,the degradation rate was restrained in 5 % Isopropyl alcohol and 10-2 mol/L NaNO3 solution,the degradation rate was accelerated in 1.2 % H2O2.The process of the reaction can be simulated by stair kinetics equation,when the solution was added none,and the equation simulated worst in 5 % Isopropyl alcohol solution.The main degradation outcome of HCB by γ irradiation was chlorobenzene,the concentration of Cl-increased as the dose increased.更多还原