Through detailed analyses, Nesse found that several of the biogas digestate samples of processed food waste contained almost as much pharmaceutical residues as digestate of sewage sludge. "It was ...

Phosphorus, which today comes mostly from nonrenewable reserves of phosphate rock, typically winds up in municipal waste streams. In the best cases, wastewater treatment plants sequester about 90% of ...

Farmers are being reminded of recent updates to slurry, manure, sewage sludge and anaerobic digestate (AD) regulations. SAC consulting told The SF that these changes mean that there are a few ...

In the best cases, wastewater treatment plants sequester about 90% of that phosphorus in “sludge” and decompose that sludge into something known as digestate. Engineers hope to establish a more ...

While the company does not currently handle any other AD digestate from plants processing food waste, it does handle around 36,000 tonnes a year of digestate produced from sewage sludge. A spokesman ...