Torrades Francesc, Pérez Montserrat, Mansilla Héctor D, Peral José
Departament d'Enginyeria Qui;mica, E.T.S.E.I. de Terrassa, Universitat Politècnica de Catalunya, c/Colom 11, 08222 Terrassa (), Barcelona, Spain.
Chemosphere. 2003 Dec;53(10):1211-20. doi: 10.1016/S0045-6535(03)00579-4.
Multivariate experimental design was applied to the treatment of a cellulose conventional bleaching effluent in order to evaluate the use of the Fenton reagent under solar light irradiation. The effluent was characterised by the general parameters total organic carbon (TOC), chemical oxygen demand and color, and it was analysed for chlorinated low molecular weight compounds using GC-MS. The main parameters that govern the complex reactive system: Fe(II) and H(2)O(2) initial concentration, and temperature were simultaneously studied. Factorial experimental design allowed to assign the weight of each variable in the TOC removal after 15 min of reaction. Temperature had an important effect in the organic matter degradation, especially when the ratio of Fenton reagents was not properly chosen. Fenton reagent under solar irradiation proved to be highly effective for these types of wastewaters. A 90% TOC reduction was achieved in only 15 min of treatment. In addition, the GC-MS analysis showed the elimination of the chlorinated organic compounds initially detected in the studied bleaching effluents.
采用多变量实验设计处理纤维素常规漂白废水，以评估芬顿试剂在太阳光照射下的使用效果。该废水通过总有机碳（TOC）、化学需氧量和颜色等常规参数进行表征，并使用气相色谱 - 质谱联用仪（GC - MS）分析其中的氯化低分子量化合物。同时研究了控制复杂反应体系的主要参数：Fe(II)和H₂O₂的初始浓度以及温度。析因实验设计能够确定反应15分钟后每个变量对TOC去除的影响权重。温度对有机物降解有重要影响，尤其是在芬顿试剂比例选择不当的情况下。结果表明，太阳光照射下的芬顿试剂对这类废水具有高效处理效果。仅处理15分钟，TOC去除率就达到了90%。此外，GC - MS分析表明，研究的漂白废水中最初检测到的氯化有机化合物已被去除。
