Department of Applied Chemistry and Physics, Faculty of Biological and Environmental Sciences, University of León, Campus de Vegazana s/n, E-24071, Spain.
Water Res. 2010 Mar;44(5):1429-39. doi: 10.1016/j.watres.2009.10.032. Epub 2009 Oct 31.
This study assessed the ability to remove pharmaceuticals and personal care products (PPCPs) of three different full-scale hybrid pond-constructed wetlands and a conventional wastewater treatment plant (WWTP). The four systems were fed with primary-treated urban wastewaters. The three hybrid systems consisted of several different subsystems (ponds, surface flow constructed wetlands and horizontal subsurface flow constructed wetlands) connected in series, and their PPCP degradation efficiency was monitored. In addition, the enantiomeric behaviour of ibuprofen was studied in all the subsystems. The hybrid systems were at least as efficient in PPCP removal as the WWTP, removal efficiencies mainly exceeding 70%. Moreover, enantiomeric analysis indicates that ibuprofen removal followed a predominantly aerobic and microbiological pathway. Constructed wetlands and ponds are therefore successful technologies for removing PPCPs from wastewater and the most significant removal process in these systems is biologically mediated.
本研究评估了三种不同规模的混合池塘-人工湿地和传统污水处理厂（WWTP）去除药品和个人护理产品（PPCPs）的能力。四个系统均以一级处理的城市废水为进水。三个混合系统由几个不同的子系统（池塘、表面流人工湿地和水平潜流人工湿地）串联组成，并监测其 PPCP 降解效率。此外，还研究了所有子系统中布洛芬的对映体行为。混合系统在去除 PPCP 方面的效率至少与 WWTP 一样高，去除效率主要超过 70%。此外，对映体分析表明，布洛芬的去除遵循主要是好氧和微生物途径。因此，人工湿地和池塘是从废水中去除 PPCPs 的成功技术，这些系统中最重要的去除过程是生物介导的。
