Currently, approximately 108 Tg of nitrogen (N) is fixed annually through the Haber–Bosch process to produce fertilizer for food production 1, consuming 3–5% of global natural gas and emitting 0.46 Gt ...

What goes down your toilet can end up on farm fields across the United States. Biosolids, or sewage sludge, are the solid byproducts of the wastewater treatment process. Rich in nutrients, they can be ...

The enhancement of composting technology to stabilize sludge pretreated by ozonation and ultrasonic was tested for 35 days. Secondary sludge produced by biological process are characterized with ...