Organic Waste Cycle
Biosolids are a nutrient-rich organic by-product resulting from the treatment of wastewater.
Their life begins when wastewater is treated. The solids produced during the wastewater treatment process are stabilized/disinfected to become biosolids and can be managed in a liquid, semi-solid or solid form. Use useful agricultural products can be made through a number of processes including dewatering, alkaline stabilization, compositing, and heat drying and pelletization.
Eventually biosolids return to the soil in the form of fertilizers and soil amendments, where they help crops grow by replenishing the soil. They also help preserve landfills, promote tree growth, and replace topsoil—even slow runoff and soil erosion.
Once they return to the land, the cycle starts over.