钻井废弃泥浆中CMC的协同降解方法研究  

Study on CMC method of synergetic degradation in waste drilling fluid

作　　者：杨胜科[1] 王艳华[1] 李元岗[1] 王文科[1] 

机构地区：[1]长安大学环境科学与工程学院,陕西西安710054

出　　处：《应用化工》2008年第11期1260-1263,共4页Applied Chemical Industry

基　　金：国家自然科学基金项目资助(40472131)

摘　　要：提出了一种降解石油废弃泥浆中羧甲基纤维素钠(CMC)的UV/Fenton-TiO2协同降解方法,考察了催化剂用量、pH值以及Fenton试剂用量等因素对反应的影响。结果表明,该方法降解效果显著,在紫外光照射下,30%的H2O2用量为4.00 mL,FeSO4.7H2O用量为0.3794 g,TiO2催化剂0.50 g,pH=5,完全降解浓度为60.0 mg/L,体积为2 L的CMC溶液只需15 min。该方法具有降解效率高、时间短、费用低、实验操作简单易行等特点。This article proposes a degeneration method of CMC in waste drilling fluid by UV/Fenton-TiO2 synergetic degradation. Inspecting the influence of the catalyst dosage, the pH value and Fenton reagent dosage and so on to the response. The result indicates that the degeneration effect of UV/ Fenton-TiO2 synergetic degeneration method is remarkable：Under the ultraviolet light illumination,30% H2O2 dosage is 4.00 mL, FeSO4 - 7 H2O dosage is 0.379 4 g,TiO2 catalyst is 0.50 g, pH = 5, degrading CMC solution only needs 15 min completely, its concentration is 60.0 mg/L and the volume is 2 L. This degeneration efficiency of the method is high, the time is short, the expense is low and the experiment operation is easy and feasible.

关 键 词：CMC UV/FENTON UV/TIO2 UV/Fenton—TiO2 协同作用 

分 类 号：O657.32[理学—分析化学]