Re: How Can Water Distribution Systems Be Kept Secure?

UV is actually a very good disinfectant. It works by damaging the DNA/RNA of bacteria and virii. There is evidence of some viruses being re-activated by sunlight. UV coupled with a primary disinfectant like Cl makes a pretty safe system. The 4ft GE Quartz UV bulbs are powerful. The water should be clear - turbid water attentuates the UV too much. In very poor places where many children die of dehydration because of contaminated water and where there is little or no money for water systems, aid workers have taught the kids to put water into clear plastic drink bottles ( the kind our landfills are clogged with ) and leave it in the sun. It works quite well. How are RO systems at removing microorganisms? Mike