On a visit to Bangladesh in 2011–where an estimated 20 million people are exposed to arsenic in local drinking water–scientist Liangjie Dong worked with a team to teach residents how to use a ...

A byproduct of the manufacture of pulp using the sulfite process for making paper, sodium lignosulfonate, can be used to immobilize and soak up toxic chromium compounds from soil and water, according ...

Researchers have invented filter paper that can inhibit the growth of specific bacteria that usually contaminate drinking water. These nanoparticle-coated cellulose-foam-based filter papers could be ...