高铁酸钾氧化去除水中邻氯苯酚的研究  

On removing O-chlorophenol from the homeleftover sewage with oxidation of potassium ferrate(Ⅵ)

作　　者：张春玲[1] 蒋煜峰[1] 朱琨[1] 王鹏[1] 冯丽梅[1] 方少辉[1] 王蓓蕾[1] 

机构地区：[1]兰州交通大学环境与市政工程学院,兰州730070

出　　处：《安全与环境学报》2011年第6期57-59,共3页Journal of Safety and Environment

基　　金：甘肃金桥水科技创新基金项目(2009jq-7)

摘　　要：以实验室自制高铁酸钾(K_2FeO_4)为氧化剂,对水中邻氯苯酚(OCP)的氧化条件进行了研究。结果表明,当高铁酸钾的投加量与邻氯苯酚质量比为5:1时,邻氯苯酚去除率达到60%;当投加氧化剂后反应时间为10 min时,邻氯苯酚去除率达到60%;在反应温度为30℃时,邻氯苯酚有效去除率达到60%;在反应体系pH值为9～10时,邻氯苯酚去除率为65%。反应体系中pH值9～10,反应时间10 min,温度30℃,氧化剂投加量质量比5:1,为K_2FeO_4去除水中邻氯苯酚的最佳试验条件。The paper is inclined to present its experimental findings on the relation among the K2FeO4 dosage use, the reaction time, pH value and the reaction temperature on the degradation efficiency of OCP. In this paper, we have conducted a series of experiments on the oxidative degradation effects of OCP in simulating sewage with potassium ferrate（K2FeO4） that takes place usually in the levorotary in hoping to find the effect of K2FeO4 dosage, reaction time, pH value and reaction temperature on the degradation efficiency of OCP. The suggested simulated tests are designed by using potassium ferrate as oxidant for wet oxidation and OCP of the background condition for the 0.2 mg/mL as the actual water sample. The suggested procedure of the experiment is that, putting K2FeO4 into the contaminated water directly under the constant stirring reaction after the scheduled time, the reaction can be let to go and end up with by adding Na2SO3,and then centrifuged. And, finally, a four-amino-antipyrine spectro-photometric method can be used to determine a supernatant constant volume of 1mL in the 25 mL colorimetric tube. The K2FeO4 with high oxidation we have found in experiments, tends to be vulnerable to be degenerate and deteriorate in the natural environment, which makes the need to store K2FeO4 of the particular importance during the experiments. The results of our experiments indicate that the removal efficiency of OCP in sewage was affected by such factors as adding K2FeO4 dose, acid and alkali conditions, reaction time as well as temperature. On the condition that K2FeO4 dosage and OCP mass ratio can reach 5：1, the effective removing rate of OCP is expected to reach 60%. And if the reaction time can be added 10 more minutes after oxidant, the OCP removal rate can also reach 60%. In addition, when the reaction system pH is 9-10, the above said removal rate can be expected to go beyond 65%. However, the optimal conditions prove to be as follows： When the reaction system pH is 9-10, the reaction time was 10 min, the te

关 键 词：环境工程学 高铁酸钾 邻氯苯酚 水处理 去除率 

分 类 号：TU991.2[建筑科学—市政工程]