Researchers at University of North Carolina (UNC) are developing a "rapid sand" filter that can provide fresh, clean, and safe drinking water to millions in developing countries. Dr. James Amburgey, ...

Mineral coatings on sand particles actually encourage microbial activity in the rapid sand filters that are used to treat groundwater for drinking, according to a paper. These findings resoundingly ...

The studied waterworks follows a treatment chain consisting of aeration and two sequential filtration steps. The aerated water flows downward through a first RSF, designed to remove ferrous iron, and ...

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 ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

WASHINGTON, DC – OCTOBER 10, 2014 - Mineral coatings on sand particles actually encourage microbial activity in the rapid sand filters that are used to treat groundwater for drinking, according to a ...