The study investigated the unbiodegradable fraction of particulate chemical oxygen demand (PCOD) in thickened waste activated sludge (TWAS) using semicontinuous-flow completely-mixed anaerobic ...
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 ...
Scientists have developed an innovative solar-powered method to transform sewage sludge -- a by-product of wastewater treatment -- into green hydrogen for clean energy and single-cell protein for ...