SLATER, Iowa — 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 ...

This is how things looked on the Robb Ewoldt farm in April as the bioreactor was being installed. A bioreactor is a big trench filled with wood chips that filters tile drainage water before it goes ...

MUSCATINE COUNTY, Iowa — Iowa lawmakers say improving the state's water quality will be near the top of the agenda as the legislature meets in Des Moines. Senate File 512 aims to make more money ...

This is a preview. Log in through your library . Abstract The performance of a low cost and simple ceramic filter to a membrane bioreactor (MBR) process was evaluated for greywater treatment. The ...

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 ...

A lawsuit filed two years ago by the Des Moines Water Works against three drainage districts in northwest Iowa drew a lot of attention to agriculture-generated nutrients in Iowa's streams and rivers.