Fans of old Chinese martial-arts dramas will have heard of the saying "use poison to combat poison." I've always considered that to be ridiculous, but it turns out the idea is ahead of its time, as now you can purify water using bacteria.
Forget what you know about bacteria and germs. Bacteria is not evil, it's just another simple organism trying to survive and propagate. Researchers at Sam Houston State University in Texas have successfully designed a portable water purification system that uses a set of common bacterial strains to create potable water in less than … Read more