Nanofiltration methods for removal of some organic compounds from waste waters

摘要

The progress in science and advanced engineering at nanometer scale provides a range of unprecedented opportunities to develop more efficiently (in terms of costs) and ecologically the processes of water purification. This paper provides a brief overview of the use of advanced materials to purify water contaminated with toxic metal ions, radio nuclides, inorganic and organic substances. It is tried to highlight the opportunities and challenges of using nanomaterials in purifying surface water, groundwater and industrial wastewater. Figure 1 highlights the four classes of materials at nanometer scale, which are assessed as functional materials for purifying waste waters: metal oxide nanoparticles, carbon nanotubes, zeolites and dendrites. They have a wide range of physicochemical properties which make them particularly attractive to the separation of sewage.