Composting of Biosolids
Composting is the biological degradation of organic materials under controlled aerobic conditions. The process is used to stabilize wastewater solids prior to their use as a soil amendment or mulch in landscaping, horticulture, and agriculture. Stabilization of wastewater solids prior to use destroys pathogens (disease causing organisms), minimizes odors, and reduces vector (e.g., flies) attraction potential.
The biosolids technology fact sheet for in-vessel composting in biosolids discusses composting in a contained vessel, enabling the operator to maintain closer control over the process in comparison with other composting methods.