A proposed plant that would use a high-heat process to turn sludge into fertilizer has residents worried about odors and property values.

“Our work reveals a more effective way to control how nitrogen moves and transforms during sludge conversion,” said the study’s corresponding author. “By introducing a two-stage process, we can ...

KALAMAZOO, MI -- Wastewater sludge hauling has tripled in price for the city of Kalamazoo since 2018, so the city is trying to find innovative solutions to reduce the financial burden. The city now ...