Department of Chemical Engineering, Grupo IMAES, Escuela Técnica Superior de Ingenieros Industriales, Instituto de Investigaciones Energéticas y Aplicaciones Industriales (INEI), Universidad de Castilla-La Mancha, Avda. Camilo José Cela 3, 13071 Ciudad Real, Spain.
J Environ Manage. 2013 Nov 30;130:64-71. doi: 10.1016/j.jenvman.2013.08.043. Epub 2013 Sep 21.
The mineralization of an aqueous solution of antipyrine (C11H12N2O), an emerging contaminant, using a solar photocatalytic oxidation process assisted with ferrioxalate was evaluated in a compound parabolic collector (CPC) pilot plant. Under the selected operating conditions ([H2O2] = 250 ppm, [Fe] = 14 ppm, pH = 2.7, and [(COOH)2·2H2O] = 80 ppm), 60% of TOC is removed just 5 min after treating an aqueous solution containing 50 ppm of antipyrine. The addition of oxalic acid up to a maximum concentration of 80 ppm significantly increases the mineralization rate during the first 15 min of the reaction. The synergism between the solar and dark H2O2/ferrioxalate process was quantified at 79%, calculated from the pseudo first-order mineralization rate constants. The operational costs due to the consumption of electrical energy, reagents and catalysts were calculated from the optimal conditions and compared with a novel sono-photocatalytic process using artificial UV-light. The results showed that the ferrioxalate-assisted solar photo-Fenton process was economically feasible, being able to achieve up to 60% mineralization with a total cost of 4.5 cent €/g TOC removed (1.1 €/m(3)).
采用复合抛物面集热器（CPC）中试装置，评估了铁草酸盐辅助的太阳光催化氧化法对安替比林（C11H12N2O）水溶液（一种新兴污染物）的矿化作用。在选定的操作条件下（[H2O2]=250ppm，[Fe]=14ppm，pH=2.7，[(COOH)2·2H2O]=80ppm），处理含有 50ppm 安替比林的水溶液 5min 后，TOC 的去除率达到 60%。在反应的前 15min 内，添加最多 80ppm 的草酸可显著提高矿化速率。根据准一级矿化速率常数，计算出太阳能和暗 H2O2/铁草酸盐工艺之间的协同作用为 79%。根据最佳条件计算了由于消耗电能、试剂和催化剂而产生的运营成本，并与使用人工 UV 光的新型声-光催化工艺进行了比较。结果表明，铁草酸盐辅助的太阳光-Fenton 法具有经济可行性，在总费用为 4.5 分欧元/gTOC 去除（1.1 欧元/m3）的情况下，可实现高达 60%的矿化率。
