What are biosolids?
Biosolids are treated sewage sludges. Sewage sludge is the solids that are collected from the wastewater treatment process but which have not undergone further treatment. Sludge normally contains up to around 3 % solids. Biosolids are a product of the sewage sludge once it has undergone further treatment to reduce disease causing pathogens and volatile organic matter significantly, producing a stabilised product suitable for beneficial use. Biosolids, normally contain between 15 % to 90 % solids. Biosolids are carefully treated and monitored and they must be used in accordance with regulatory requirements.
Biosolids are the nutrient-rich solid organic matter recovered from the treatment of domestic wastewater in a wastewater treatment facility. Biosolids are a beneficial resource, containing essential plant nutrients and organic matter and are recycled as a fertilizer and soil amendment on agricultural land. When treated and processed, these wastewater residuals can be recycled and applied as fertilizer to improve and maintain productive agricultural soils and enhance plant growth.
Biosolids are a beneficial byproduct of wastewater treatment. These solids are separated from the wastewater and fully treated to create a safe, stabilized, useful product especially beneficial for re-use due to their nutrient-rich organic material. But thats only part of the story. To plants and earthworms, biosolids are food. To soil, they are a valuable resource that can improve soil tilth and structure.
