In this work a photo electrochemical reactor (PEC) with a compound parabolic collector (CPC) has been designed and tested for the electrochemically assisted photocatalytic (EAP) disinfection of rainwater under real sun conditions in South Africa. The reactor consisted of a Ti mesh coated with aligned titania nanotubes with a carbon counter electrode in a concentric tubular configuration, within a borosilicate glass tube with a CPC. Environmental strains of Escherichia coli and Pseudomonas aeruginosa were used. The viability of the microorganisms was analysed by culture-based and by EMA-qPCR methods. The reactor was tested under real sun during the winter in South Africa with a relatively low UV irradiance (max: 13 Wm-2). Under real sun irradiation, EAP yielded a 5.5-log10 reduction for E. coli and a 5.8-log10 reduction for P. aeruginosa for culture-based analysis. The EAP treatment also showed improved results by EMA-qPCR analysis with a 2.4-log10 reduction in gene copies for E. coli and 3.0-log10 for P. aeruginosa.

在这项工作中，已经设计并测试了带有复合抛物线收集器（CPC）的光电化学反应器（PEC），用于在南非的真实阳光条件下对雨水进行电化学辅助的光催化（EAP）消毒。该反应器由涂有对准的二氧化钛纳米管的Ti网眼和同心管状配置的碳对电极组成，并在带有CPC的硼硅酸盐玻璃管内。大肠杆菌和铜绿假单胞菌的环境菌株被使用。通过基于培养的和通过EMA-qPCR方法分析微生物的生存力。在南非冬季，该反应堆在真实阳光下进行了测试，紫外线辐射相对较低（最大值：13 Wm-2）。在基于阳光的照射下，对于基于培养物的分析，EAP可使大肠杆菌减少5.5-log10 ，铜绿假单胞菌减少5.8-log10 。EAP处理还通过EMA-qPCR分析显示出更好的结果，大肠杆菌的基因拷贝减少了2.4 -log10，铜绿假单胞菌的拷贝减少了3.0-log10 。