Water is one of the most valuable and necessary resources on this planet, and the demand rate is increasing greater than the supply rate. In response to rapidly growing water needs, we must become more efficient with our water usage. As agriculture is one of the primary uses of potable water across the globe, increases in efficiency in this aspect can have substantial impact. Smarter management...

Mine drainage waters vary considerably in the range and concentration of heavy metals they contain. Besides iron, manganese is frequently present at elevated concentrations in waters draining both coal and metal mines. Passive treatment systems (aerobic wetlands and compost bioreactors) are designed to remove iron by biologically induced oxidation/precipitation. Manganese, however, is problemat...