Biosolids are a byproduct from municipal sewage treatment that may be used as an organic soil conditioner and fertilizer after treatment to reduce pathogens. Biosolids are a complex mixture that contains organic and inorganic compounds and organisms from wastewaters of households, commercial
and industrial facilities, as well as compounds added or formed during wastewater treatment processes. Do biosolids serve as a point source of hazardous pollutants, or has the material been applied over a large area that serves as a more diffuse source?
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