摘要
利用高锰酸钾氧化法处理三氯乙烯(TCE)污染的地下水,以去离子水作为氧化反应的试剂水。在不同TCE体积分数(0.5,5,20,50,100)×10-6,KMnO4与TCE的摩尔比值[n(KMnO4)/n(TCE)],即P值,并配制2 P,5 P,10 P,20 P,50 P的不同溶液,在完全混合的理想状态下研究TCE的去除效率并探讨反应中TCE的去除效率与反应时间的关系。研究结果表明,当TCE浓度相同但P值不同的条件下,随P值越高,TCE氧化去除效率越高。当P值相同但TCE浓度不同的条件下,TCE浓度越高,TCE氧化去除效率越高。
In this paper,potassium permanganate was used as the oxidant to remediate TCE-contaminated groundwater and the deionizer water was the reagent water used in oxidation.In different concentrations of TCE（0.5,5,20,50,100 mg/L）,potassium permanganate and TCE molar ratio（[KMnO4/TCE],P value）（2P,5P,10P,20P,50P）,in the completely mixed state of an ideal to the removal efficiency of TCE and the relationship between the reaction of TCE removal efficiency and reaction time were studied.Experiment results indicate that the higher the P value,the higher the TCE oxidation rate.As the P values of the same but the different concentration of TCE conditions,the higher the concentrations of TCE,the higher oxidation removal efficiency of TCE.
出处
《环境科技》
2010年第6期11-13,共3页
Environmental Science and Technology
关键词
高锰酸钾
三氯乙烯
硫代硫酸钠
地下水
Potassium permanganate
Trichlorocthylene
Sodium thiosulfate
Groundwater
