In many of the same hot regions of the world prone to drought and water contamination grows a tree whose seeds attract and kill bacteria in water. It's a thin-branched, gangly-looking plant ...

A sand filter, or "filtration basin", is a stormwater quality treatment system that works by using a two-component clarification system: the first is a sediment forebay for settling large particles ...

Did you know that boiling water removes some bacteria but not contaminants like chlorine and lead? In fact, boiling water can actually elevate its lead concentration. If your goal is to have filtered ...