FIGURE 3. Membrane bioreactor treatment system for direct conversion to potable water.
From the following article:
Science and technology for water purification in the coming decades
Mark A. Shannon, Paul W. Bohn, Menachem Elimelech, John G. Georgiadis, Benito J. Mariñas & Anne M. Mayes
Nature 452, 301-310(20 March 2008)
doi:10.1038/nature06599
Depiction of a next generation MBR-based treatment method that can potentially take wastewater from municipal, agricultural, livestock or other high-organic-content sources and convert it to potable water. Future methods may be able to omit the RO step with a nanofiltration membrane, and follow with a visible light disinfection step to ensure that all pathogens, including viruses, are inactivated.