Enhanced Biological Treatment of Industrial Wastewater With Bimetallic Zero-Valent Iron.

The article focuses on the use of bimetallic zero-valent iron in enhanced biological treatment of industrial wastewaters. It states that municipal wastewater is traditionally treated via biological processes such as aerobic organisms in suspended systems or surface-anchored biofilms, while industrial process wastes often possess toxic pollutants that are less biodegradable. It examines the use of iron shavings for enhanced biological treatment of wastewater from industrial processes, with the shavings containing iron, chromium, silica, and a few other trace elements. It comments on reactions of iron shavings with chlorinated aliphatic compounds, organic dyes, and with nitrobenzenes and chlorinated phenols.