15 小时之前 · This is a public service announcement to any farmer who either has fertilized their crops with sewage sludge or is considering doing so this spring to save on input costs. Stop. Don’t. To do otherwise potentially puts your farm at risk. The Environmental Protection Agency promotes the agricultural use of biosolids, which is sewage sludge […]

2025年1月27日 · Leslie Smith, better known as Skip, no longer drinks the water from his well. The 69-year-old retired veteran says he can’t after tests found dangerous contaminants in it that he says came from the next-door farm that spread sewage sludge — the byproduct of human waste — for decades. Smith now purchases bottled water after tests done by the Sierra Club on his drinking water and pond ...

2025年1月14日 · The findings for the draft risk assessment show that there may be human health risks associated with exposure to the “forever chemicals” PFOA or PFOS with all three methods of using or disposing of sewage sludge – land application of biosolids, surface disposal in …

2025年1月6日 · This basic page provides context for how biosolids and sewage sludge relate to each other, and how regulations provide a framework for use or disposal.

2025年1月17日 · The draft risk assessment reflects the agency’s latest scientific understanding of the risks to human health and the environment posed by the presence of PFOA and PFOS in sewage sludge.

Sewage sludge is the most important byproduct from wastewater treatment plants (WWPTs), and its smart management greatly contributes to energy/resource self-sufficiency of WWTPs and greenhouse gases (GHGs) emission reduction with lesser environmental risks or hazards. This special issue aims to provide a platform for the researchers worldwide to communicate and share their new advancements and ...

2024年6月1日 · This review collected data confirming the agronomic value of sewage sludge, including long-term field studies and data on the presence of pollutants along with possible ways to reduce them. Particular attention is given to the technologies available for fertiliser production from sewage sludge which are operating at full scale.

Process can reduce sludge volume and enhance dehydration and combustion performance. The product contains various phytohormones, humic substances and essential nutrients. The method offers 42 times the energy efficiency of conventional anaerobic digestion. This approach can promote waste resource recycling and sustainable urban management.

2025年1月27日 · Over the past five months, Spectrum News investigated the use of sewage sludge — also known as biosolids — on farmland and efforts to ban it because it can be contaminated with cancer-causing “forever chemicals.” Sewage sludge is the semi-solid byproduct at the end of the wastewater ...

1 天前 · Publicly owned treatment works (POTWs) are urging a federal court to dismiss a case brought by environmentalists seeking to force EPA to set PFAS limits in sludge, pointing to the agency’s recent risk assessment of two of the chemicals in sludge to argue plaintiffs would be making EPA skip necessary rulemaking to establish such regulations. “Plaintiffs ignore the Congressionally-mandated ...