Oxidation of pharmaceuticals by chlorine dioxide in biologically treated wastewater
Oxidation of pharmaceuticals by chlorine dioxide in biologically treated wastewater
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DOI：
10.1016/j.cej.2012.01.093
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发表时间：
2012-03-15
影响因子：
15.1
通讯作者：
Andersen, H. R.
中科院分区：
文献类型：
--
作者：
Hey, G.;Grabic, R.;Andersen, H. R.
采用0-20 mg/L的二氧化氯（ClO 2）溶液对56种活性药物成分（API）混合物的生物处理废水进行了实验室处理。收集了来自瑞典的两个废水处理厂的废水流出物，一个具有延长的脱氮（低COD），一个没有（高COD）。约三分之一的受试原料药即使在最高ClO 2剂量（20 mg/L）下也能抵抗降解，而其他原料药在最低ClO 2水平（0.5 mg/L）下降解率降低90%以上。在低COD废水中，超过一半的API在5 mg/L ClO 2下被氧化，而在高COD废水中，用8 mg/L ClO 2处理后观察到API氧化的显著增加。本研究说明了成功的降解过程中的几个原料药处理废水与二氧化氯。(c)2012爱思唯尔有限公司版权所有。
Biologically treated wastewater spiked with a mixture of 56 active pharmaceutical ingredients (APIs) was treated with 0-20 mg/L chlorine dioxide (ClO2) solution in laboratory-scale experiments. Wastewater effluents were collected from two wastewater treatment plants in Sweden, one with extended nitrogen removal (low COD) and one without (high COD). About one third of the tested APIs resisted degradation even at the highest ClO2 dose (20 mg/L), while others were reduced by more than 90% at the lowest ClO2 level (0.5 mg/L). In the low COD effluent, more than half of the APIs were oxidized at 5 mg/L ClO2, while in high COD effluent a significant increase in API oxidation was observed after treatment with 8 mg/L ClO2. This study illustrates the successful degradation of several APIs during treatment of wastewater effluents with chlorine dioxide. (c) 2012 Elsevier B.V. All rights reserved.