Davide Dionisi’s worked example demonstrates how sustainable wastewater treatment ... by the mass flow rate of microorganisms leaving the system. By introducing R, HRT, and SRT, and after some ...

Due to a lack of data, a model of sewage sludge incineration was not included in the assessment ... determining whether new biosolids limits for PFOA and PFOS are appropriate via their “risk ...

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator.

Sewage sludge has been used as fertilizer for many years. Wastewater treatment plants produce millions of tons of it and tens of millions of acres of farmland have been allowed to use it ...

How to understand the E.P.A.’s new warning about PFAS levels in sewage sludge. By Hiroko Tabuchi (Editors note: We are continuing to cover the Los Angeles fires. Scroll down for more on the latest.

In the context of biological wastewater treatment (BWT), the presence of phages can alter the efficiency of the treatment process and influence the quality of the treated effluent ... such as ...

Harmful chemicals in sewage sludge that is spread on pasture land as fertilizer are causing cancer, the Environmental Protection Agency said Tuesday. The risk is highest for people who regularly ...

Wastewater treatment plants do not remove PFAS; much of it ends up in the sludge, which is often recycled into fertilizer. The Deer Island Wastewater Treatment Plant, which manages sewage from 43 ...

This document has been published in the Federal Register. Use the PDF linked in the document sidebar for the official electronic format.