... and without secondary pollution Nano-TiO2 photocatalyst applications in Sewage treatment Feature:1. Product Name: Nano-TiO2, Nano Titanium Dioxide, ... harmless CO2 and H2O,3. Nano titanium dioxide for sewage treatment is not only residue-free, wide sterilization, corrosion-free, ... stimulating, non-toxic and not affected by organics, hard and soft water, PH, temperature and so on, but also the long ...