Nanotechnology advancing water treatment

A new report explains how nanotechnologies such as nanomembranes and nanoporous zeolites are being used for the treatment of water and wastewater. Nano-based filters are able to achieve 99.95 percent efficiency and remove some bacteria and viruses as well as contaminants such as mercury, arsenic, and perchlorate. "As the impact of these contaminants on humans is gradually realized,” say the authors, “it has become increasingly essential to monitor them at trace levels, which is impossible with conventional treatment methods."