Grupo de Procesos de Oxidación Avanzada, Departamento de Ingeniería Textil y Papelera, Universidad Politécnica de Valencia, Campus de Alcoy, Plaza Ferrandiz y Carbonell s/n, Alcoy, Spain.
Water Res. 2009 Oct;43(18):4441-50. doi: 10.1016/j.watres.2009.07.011. Epub 2009 Jul 15.
The effect of eleven inorganic ions (Cl(-), NO(3)(-), SO(4)(2-); PO(4)(3-), Na(+); NH(4)(+), Ca(2+), Mg(2+), Zn(2+), Cu(2+) and Al(3+)) on the photo-Fenton elimination of pesticides has been investigated. Phosphate and chloride have been demonstrated to have an inhibitory role; on the other hand, the reaction was accelerated in the presence of Cu(2+), most probably due to a copper-driven Fenton-like process. The solar photo-Fenton treatment of a mixture of four commercial pesticides was studied at pilot plant scale in the presence of chlorides. Samples with coincident dissolved organic carbon (DOC) showed similar chemical composition, which resulted in a comparable biocompatibility, however longer irradiation periods were needed to reach the desired mineralization when Cl(-) was present. It was demonstrated that the chemical process was able to improve significantly the biocompatibility of the effluent, as shown by the inhibition of respiration of activated sludge, BOD/COD ratio and Zahn-Wellens test.
研究了 11 种无机离子（Cl(-)、NO(3)(-)、SO(4)(2-)、PO(4)(3-)、Na(+)、NH(4)(+)、Ca(2+)、Mg(2+)、Zn(2+)、Cu(2+) 和 Al(3+)）对农药光芬顿消除的影响。磷酸盐和氯化物被证明具有抑制作用；另一方面，在 Cu(2+)的存在下，反应加速，这很可能是由于铜驱动的类芬顿过程。在存在氯化物的情况下，在中试规模上研究了四种商业农药混合物的太阳能光芬顿处理。具有相同溶解有机碳 (DOC) 的样品具有相似的化学成分，因此具有相当的生物相容性，但当存在 Cl(-) 时，需要更长的辐照时间才能达到所需的矿化。结果表明，该化学过程能够显著提高废水的生物相容性，如活性污泥的呼吸抑制、BOD/COD 比和 Zahn-Wellens 试验所示。
