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采用臭氧氧化去除水中的丁基黄药,研究了臭氧氧化丁基黄药的影响因素,考察了反应溶液的初始pH值、臭氧投加量、反应物初始浓度、自由基抑制剂对丁基黄药降解率的影响。结果表明,pH值、臭氧投加量越高,丁基黄药降解率越高,随着丁基黄药初始浓度的升高,丁基黄药的去除效率会下降,但绝对去除量会升高。碳酸氢根和叔丁醇能在一定程度上降低丁基黄药的降解效率。同时讨论了体系中COD、TOC、UV254、pH和电导率的变化情况,结果表明臭氧氧化很难将体系中的COD和TOC大幅度降低,反应体系pH随氧化时间的增加而降低的,GC-MS分析表明,丁基黄药氧化的臭氧化产物为醇类和羧酸类物质。
Ozone oxidation was used to remove butyl xanthate in water. The effects of ozone oxidation on butyl xanthate were studied. The effects of initial pH value, ozone dosage, initial concentration of reactants, Effect of drug degradation rate. The results showed that the higher the pH and ozone dosage, the higher the degradation rate of butyl xanthate, the butyl xanthate removal efficiency decreased with the initial concentration of butyl xanthate, but the absolute removal rate would increase high. Bicarbonate and tert-butanol can reduce the degradation efficiency of butylxanthin to a certain extent. The changes of COD, TOC, UV254, pH and conductivity of the system were also discussed. The results showed that it was hard to reduce the COD and TOC in the system by ozone oxidation and the pH of the reaction system decreased with the increase of oxidation time. MS analysis showed that the ozonation products of butyl xanthate were alcohols and carboxylic acids.