Washington State University researchers have piloted a process that transforms sewage sludge into renewable natural gas with 99% methane purity, significantly boosting energy recovery compared to ...

A new method for treating sewage sludge efficiently created renewable natural gas while slashing in half the cost of the ...

Sewage sludge is usually the part nobody wants to think about. It is costly to handle, hard to get rid of, and after ...

A team of scientists, including one from WSU, have completed a pilot study that shows by pretreating sewer sludge, they can ...

A pilot study of a new method for treating sewage sludge from a wastewater treatment plant efficiently created renewable ...

A new process is changing the definition of waste from an inherently expensive burden in wastewater treatment plants, a part ...

Over recent years there has been a growing realisation that the treatment and disposal of sludge presents a major challenge to the water industry. Rising sludge production coupled with more demanding ...

Purac has been undertaking a project with South West Water (SWW) to help the utility apply Hazards Analysis Critical Control Point (HACCP) to meet the Revised Sludge (Use in Agriculture) Regulations.

Until 1992, ocean dumping was permitted in the Atlantic Ocean. According to Kate Ascher, author of The Works, New York City took its sewage (initially in raw form, later post-processing) to the ...