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

A Washington State University-led research team says it has found a way to turn sewage sludge into pipeline-quality renewable ...

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

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 pilot study of a new method for treating sewage sludge from a wastewater treatment plant efficiently created renewable natural gas while reducing the cost of the treatment. The work, reported in the ...

The Altoona Water Authority has negotiated a $380,000 discount with the contractor building its digester complex at the Westerly Sewer Treatment Plant in return for granting a second extension of the ...

The state Department of Environmental Protection plans to issue a notice of violation to York City after overflowing digesters at the wastewater treatment plant discharged an estimated 5,000 gallons ...