Biosolids Dryer

  • May 27, 2014
Image Biosolids Dryer

Manatee County constructed a Thermal Dryer in 2008 to process treated sludge from the treatment plants and create a marketable fertilizer. This eliminated the County’s need to land spread all of the treated sludge. All material from the treatment plants is now processed in the Thermal Dryer and marketed to local farmers as Class AA Biosolids.

  • Biosolids are the nutrient-rich organic materials resulting from the treatment of sewage sludge (the name for the solid, semisolid or liquid untreated residue generated during the treatment of domestic sewage in a treatment facility).


  • When treated and processed, sewage sludge becomes biosolids which can be safely recycled and applied as fertilizer to sustainably improve and maintain productive soils and stimulate plant growth.


  • Only biosolids that meet the most stringent standards spelled out in the Federal and state rules can be approved for use as a fertilizer (Manatee County meets these standards).


  • Now, through a Voluntary Environmental Management System, being developed for biosolids (EMS) by the National Biosolids Partnership (NBP), community-friendly practices will also be followed (Manatee County is currently pursuing NBP certification).


  • Although cities decide how best to manage their biosolids, the U.S. Environmental Protection Agency (EPA) is obligated and continues to provide the public with educational information, based on the best science, about the safe recycling and disposal of biosolids.