February 2006: Volume 48, Number 2
Spaghetti filters for water
The American Chemical Society has published information suggesting that perchlorate and nitrates may be best removed from drinking water with tubes of bacteria known as spaghetti filters. The bacteria grow on membranes and are then wrapped into long, thin threads resembling spaghetti. Bundled into cylinders, the filters are effective in removing a variety of nitrates and perchlorate, which have gained notoriety as of late in the United States after studies showed its prevalence in drinking water supplies around military bases and other manufacturing facilities.