Denitrification bioreactors are engineered systems designed to remove nitrate from contaminated waters, particularly those influenced by agricultural practices. By utilising a solid carbon ...

A worker shovels wood chips in a bioreactor trench in a farm field, Tuesday, March 28, 2023, near Roland, Iowa. Simple systems called bioreactors and streamside buffers help filter nitrates from ...

Scientists have developed a new edge-of-field water-treatment system that reduces the load of excess nutrients washing into ...

A bioreactor is a big trench filled with wood chips that filters tile drainage water before it goes into a stream. Microbes feeding off the carbon in the woodchips "breath" nitrate, converting it into ...

CORWITH, Iowa — A bioreactor recently installed on Dennis Schwab’s farm north of Corwith will reduce nitrates flowing into the Boone River and ultimately into the Gulf of Mexico. Schwab, a ...

WATERLOO - A new woodchip bioreactor will reduce nitrates in tile water draining off an 80-acre Lanehaven Farms field about four miles south of here. The bioreactor – one of several components of the ...

Nick Helland’s central Iowa farm looks much like every other nearby farm on this chilly March day, with corn stubble stretching from a gravel road up over a low hill to the northern horizon. But look ...

This bioreactor in Gifford is scheduled to go online soon. The bioreactor will remove nitrates from the village’s wastewater stream. It will be the first municipal-operated one in the state. Our ...

SLATER, Iowa (AP) — Nick Helland’s central Iowa farm looks much like every other nearby farm on this chilly March day, with corn stubble stretching from a gravel road up over a low hill to the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SLATER, Iowa (AP) — Nick Helland’s central ...