Gerald Pollock, Head of Bioengineering at the Pollock Laboratory at the Univ. of Washington, may be on the cusp of a Sun-powered water filtering system that could change the way water is cleaned and used in our world. Because of the molecular makeup of the filtered water, it's conceivable that the discovery could also alter the potential in wet-cell batteries. A small working prototype has been built but he is currently in partnership with Mote Laboratories here in Longboat Key to build a larger working model. Here's a link to the article:
Interesting if it works on a large scale. A couple of questions:
- How much does it take (money/materials/machinery) to make the magic Nafion?
- How long does the Nafion last until either it is exhausted or clogged up with what it filters out (it seems unlikely that all the bad stuff will be flushed away)?
- How does it do with things other than common organic materials that are often found in the sorts of water supplies you want to filter (e.g. heavy metals, industrial waste, petro chemicals)?
- What are you going to do with all the "waste" water the thing produces (this is already becoming an issue with desalinization plants)? If the waste water has a high concentration of pollutants in it, you will have a whole other problem.