Which of the following is a byproduct of wastewater treatment that can be recycled?

Biosolids are a byproduct of wastewater treatment that can be recycled and reused. They are the organic solids that remain after the wastewater has been treated and come from the sedimentation of solids and the biological processes that occur during the treatment. These biosolids can be processed further to reduce pathogens and improve nutrient content, allowing them to be utilized as a soil amendment or fertilizer in agriculture, landscaping, and other applications. This recycling not only helps in reducing waste but also contributes to sustainable practices by returning nutrients to the soil.

In contrast, sewage refers to the raw wastewater that enters treatment plants, and it is not a recyclable product itself. Effluent is the treated water that is discharged from a wastewater treatment facility; while it can be released back into water bodies or reused for irrigation, it is not a solid byproduct that can be recycled in the same manner as biosolids. Grit consists of inorganic solids such as sand, gravel, and silt that settle out during initial treatment processes; it is typically removed and disposed of rather than recycled.