Removal of pesticides from water combining low pressure UV photolysis with nanofiltration
Removal of pesticides from water combining low pressure UV photolysis with nanofiltration
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DOI：
10.1016/j.seppur.2013.04.044
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发表时间：
2013-08
影响因子：
8.6
通讯作者：
Sandra Sanches;A. Penetra;A. Rodrigues;V. Cardoso;E. Ferreira;M. Benoliel;M. T. Crespo;J. Crespo;V. Pereira
中科院分区：
文献类型：
--
作者：
Sandra Sanches;A. Penetra;A. Rodrigues;V. Cardoso;E. Ferreira;M. Benoliel;M. T. Crespo;J. Crespo;V. Pereira
事实证明，低压紫外线光解和纳滤的结合对于饮用水处理非常有效，因为地表水中添加的几种新兴农药被高度去除。发现在操作过程中形成的副产物的浓度和纳滤渗透液的雌激素活性总是非常低，这表明光解过程中形成的副产物被纳滤过程有效地保留。此外，进一步处理/处置渗余物的需要以及相应的成本也可能降低。该组合工艺有望去除选定的微污染物和形成的副产物，同时减少实现水消毒所需的氯剂量，从而减少消毒副产物的形成。
The combination of low pressure ultraviolet photolysis and nanofiltration proved to be extremely efficient for the treatment of drinking water since several emerging pesticides spiked in surface water were found to be highly removed. The concentration of the by-products formed and estrogenic activity of the nanofiltration permeate was found to be always very low during operation, showing that the by-products formed during photolysis were efficiently retained by the nanofiltration process. Moreover, the need to further treat/dispose the retentate and the respective costs are also likely to decrease. The combined process is promising to remove the selected micropollutants and formed by-products while reducing the chlorine doses needed to achieve water disinfection, therefore decreasing also the formation of disinfection by-products.