A METHOD OF REMOVING ORGANIC POLLUTANTS FROM WATER AND WASTEWATER

摘要

The present invention provides a catalyst (N-doped TiO2) used in water and wastewater treatment process under visible and solar radiation for the removal of microorganism and organic compounds with high efficiency for a long period of time. According to the present invention, photocatalyitc oxidation of organic pollutants and microorganism in aqueous solution was carried out in both batch and continuous photoreactor. The photocatalyst (N-doped TiO2) was used in both suspended and immobilized form. The support material for coating catalyst (N-doped TiO2) is preferably an inert material. The catalyst was prepared by a modified sol-gel procedure using triethylamine as nitrogen source. Nano sized catalyst (N-doped TiO2) demonstrated high photocatalytic activity under visible and solar radiation. The continuous photocatalytic reactor operates effectively at ambient temperature and pressure.