Current chemical oxygen demand (COD) analyses generate wastes containing hexavalent and trivalent chromium, mercury, and silver. Waste disposal is difficult, expensive, and poses environmental hazards ...

Researchers at Tohoku University have created a new catalyst that can partly renew itself while working, opening ...

Scientists determine for the first time the chemical composition of a type of red giant star with more carbon than oxygen in its atmosphere ...

Succession of redox processes is sometimes assumed to define a basic microbial community structure for ecosystems with oxygen gradients. In this paradigm, aerobic respiration, denitrification ...