USDA field pilots replaced most woodchips with corn cobs in nitrate bioreactors; the 75% corn-cob beds removed nitrate up to 10 times faster

Discover how USDA field trials reveal that corn cobs, when used in nitrate bioreactors, can remove harmful nitrates from farm drainage water at a significantly faster and cheaper rate than traditional woodchips.

Raccontata daeconomictimes.indiatimes.com