Solar detoxification of wastewater: Bactericidal and photocatalytic activities of titania-based compounds in an externally-irradiated bubble column immobilized reactor

光辅助处理是废水回收最具吸引力的方法之一-对于淡水资源有限的澳大利亚来说，这是一个主要问题。然而，由于无法利用阳光和糟糕的光反应堆设计，商业开发受到阻碍。这项建议涉及的发展Co-TiO2光催化剂，可在可见光活化，以实现有机降解和细菌杀菌同时在室温。新的反应器允许从处理过的液体中就地分离固体催化剂，从而确保连续生产可循环使用的水。太阳能运行的移动或固定废水处理装置从当地和国际市场获得的巨大经济效益是显而易见的。

Light-assisted treatment is one of the most attractive methods for wastewater reclamation - a major issue for Australia with limited fresh water resources. However, commercial exploitation is hindered by inability to harness sunlight and poor photoreactor design. This proposal deals with the development of Co-titania photocatalyst activatable by visible light to effect organic degradation and bacterial sterilization simultaneously at room temperature. The new reactor permits in-situ separation of the solid catalyst from treated liquid thus ensuring continuous production of recyclable water. The huge economic returns of solar-operated mobile or stationary wastewater unit from local and international markets are obvious.