Key Laboratory of Pollution Processes and Environmental Criteria at Ministry of Education, College of Environmental Science and Engineering, Nankai University, Weijin Road 94, Tianjin 300071, China.
Water Res. 2012 Feb 1;46(2):403-12. doi: 10.1016/j.watres.2011.11.002. Epub 2011 Nov 15.
This study examined effects of Fenton oxidation on trace level pharmaceuticals and personal care products (PPCPs) commonly occurring in wastewater. The tested PPCPs included acetaminophen, atenolol, atrazine, carbamazepine, metoprolol, dilantin, DEET, diclofenac, pentoxifylline, oxybenzone, caffeine, fluoxetine, gemfibrozil, ibuprofen, iopromide, naproxen, propranolol, sulfamethoxazole, bisphenol-A and trimethoprim. Transformations of effluent organic matter (EfOM) caused by Fenton oxidation were also quantified. All tested PPCPs, except atrazine and iopromide, were completely removed by Fenton treatment carried out using a 20mg/L Fe (II) concentration and a 2.5 H(2)O(2)/Fe (II) molar ratio. Up to 30% on the total carbon concentration was removed during Fenton treatment which was accompanied by the oxidation of EfOM molecules and formation of oxidation products such as oxalic, formic and acetic acids and, less prominently, formaldehyde, acetaldehyde, propionaldehyde and glycolaldehyde. The absorbance of EfOM treated with Fenton reagent at varying Fe (II) concentration and contact time underwent a consistent decrease. The relative decrease of EfOM absorbance was strongly and unambiguously correlated with the removal of all tested PPCPs.
本研究考察了芬顿氧化法对废水中常见的痕量药物和个人护理产品（PPCPs）的影响。测试的 PPCPs 包括对乙酰氨基酚、阿替洛尔、莠去津、卡马西平、美托洛尔、苯妥英、DEET、双氯芬酸、己酮可可碱、邻苯二甲酸二乙酯、咖啡因、氟西汀、吉非贝齐、布洛芬、碘普罗胺、萘普生、普萘洛尔、磺胺甲噁唑、双酚 A 和甲氧苄啶。芬顿氧化引起的废水有机物（EfOM）转化也被定量了。所有测试的 PPCPs，除莠去津和碘普罗胺外，均被 20mg/LFe(II)浓度和 2.5H2O2/Fe(II)摩尔比的芬顿处理完全去除。在芬顿处理过程中，总碳浓度去除率高达 30%，同时伴随着 EfOM 分子的氧化和氧化产物的形成，如草酸、甲酸和乙酸，以及不太明显的甲醛、乙醛、丙醛和乙二醇醛。用不同浓度的芬顿试剂处理的 EfOM 的吸光度持续下降。EfOM 吸光度的相对降低与所有测试的 PPCPs 的去除率呈强且明确的相关性。
