Nano Water Treatment Needed

http://www.nanotech-now.com/news.cgi?story_id=28193

This story itself doesn't say anything groundbreaking, but other stories have mentioned the growing ubiquitousness of traces of pharmceuticals in water supplies around the world. (Lucky we live Hawaii where our 'treated' wastewater goes out to sea, and not into the drinking water supply loop.) Someone could do a lot of good and make bundles of cash if they could make a nano membrane that wicks these tiny compounds out of water. It would first be a high-end treatment technology for ultra pure drinking water, but eventually could be rolled out to treat wastewater so that these undigested and half-metabolizes drugs don't get into our ecosystems and drinking water sources in the first place.