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Daily News Blog

Archive for the 'Biosolids' Category


02
Mar

Sewage Sludge Creates a “Safe Haven” for Covid Viral Particles, Placing Public Health at Risk

(Beyond Pesticides, March 2, 2022) Covid (SARS-CoV-2) is being detected in wastewater, sludge, and biosolids, providing a “safe haven” for the virus and creating a health risk for wastewater workers and farmers. Published in Geoscience Frontiers, an international team of researchers systematically reviewed the available literature on the prevalence of pandemic coronavirus in wastewater in order to better determine risks to workers and public health. The timely review comes as many communities and states are reevaluating their use reclaimed human effluent due to a range of toxic contaminants, including per and polyfluoroalkyl substances (PFAS). Researchers found 20 articles from published literature that met the criteria for their review. Each of three environmental materials –wastewater effluent, sludge, and biosolids were analyzed for the presence of Covid. Effluent is the liquid that remains after a sewage treatment process, sludge is organic matter separated from effluent, and biosolids are the fully processed product that is then often applied to farm fields. Of the three materials, sludge contained the highest prevalence of covid RNA, followed by biosolids and then effluent, according to modeling of the data employed by researchers. Covid amounts were found to be related to the number of infected individuals living within […]

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08
Jun

Sewage Sludge Fertilizers Sold at Hardware Stores Found to be Contaminated with PFAS Chemicals

(Beyond Pesticides, June 8, 2021) Biosolid-based fertilizer products like Milorganite, often sold to consumers as “organic,” are contaminated with dangerous PFAS chemicals, according to a study published by Sierra Club and Ecology Center. Biosolids, also known as sewage sludge, have been found in the past to contain residues of hazardous pesticides, heavy metals, antibiotics and other pharmaceuticals, personal care products, and a range of other toxicants. While the latest news may not be surprising for careful shoppers who have long avoided biosolid fertilizers, none of these risks are relayed to consumers on fertilizer packages. With fertilizer regulations failing the American consumer, it becomes more important than ever to seek out certified organic fertilizer products. Sierra Club and Ecology Center looked at nine fertilizer products, each produced from the sewage sludge of a particular American city. For instance, Milorganite, perhaps the most well-known biosolid sludge fertilizer, is derived from the Milwaukee, Wisconsin sewage treatment system. Other products were derived from locations including Sacramento, CA (Synagro); Tacoma, WA (TAGRO); Madison, GA (Pro Care); Las Vegas, NV (Ecoscraps); Eau Claire, WI (Menards Premium Natural Fertilizer); Jacksonville, FL (Greenedge); North Andover, MA (Earthlife); and Washington, DC (Cured Bloom). As the report notes, many of […]

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