Plataforma Solar de Almería-CIEMAT , Carretera de Senés km4, 04200 Tabernas, Spain.
Environ Sci Technol. 2012 Mar 6;46(5):2885-92. doi: 10.1021/es204112d. Epub 2012 Feb 16.
The goal of this paper was to develop a modified photo-Fenton treatment able to degrade micro pollutants in municipal wastewater treatment plant (MWTP) effluents at a neutral pH with minimal iron and H(2)O(2) concentrations. Complexation of Fe by ethylenediamine-N,N'-disuccinic acid (EDDS) leads to stabilization and solubilization of Fe at natural pH. Photo-Fenton experiments were performed in a pilot compound parabolic collector (CPC) solar plant. Samples were treated with solid phase extraction (SPE) and analyzed by HPLC-Qtrap-MS. The rapid degradation of contaminants within the first minutes of illumination and the low detrimental impact on degradation of bicarbonates present in the water suggested that radical species other than HO(•) are responsible for the efficiency of such photo-Fenton process. Disinfection of MWTP effluents by the same process showed promising results, although disinfection was not complete.
本文的目的是开发一种改良的光芬顿处理方法，能够在中性 pH 值和最低铁和 H2O2浓度下，降解市政污水处理厂（MWTP）废水中的微量污染物。乙二胺二琥珀酸（EDDS）与 Fe 的络合作用导致 Fe 在自然 pH 值下的稳定和溶解。光芬顿实验在一个中试复合抛物面集热器（CPC）太阳能设备中进行。样品用固相萃取（SPE）处理，并通过 HPLC-Qtrap-MS 进行分析。在光照的最初几分钟内污染物的快速降解以及对水中存在的碳酸氢盐的降解的低不利影响表明，HO（•）以外的自由基物种是这种光芬顿过程效率的原因。通过相同的过程对 MWTP 出水进行消毒也显示出了有前景的结果，尽管消毒并不完全。
