Activated sludge waste water processing is one of the most common technologies used in municipal waste water treatment facilities. Bioregenerative waste water treatment research at the NASA Johnson ...

TOKYO -- Getting rid of household waste water from sinks, toilets, baths and the like is a growing problem around the world. In modern cities, such water finds its way into municipal sewage treatment ...

The study investigated the unbiodegradable fraction of particulate chemical oxygen demand (PCOD) in thickened waste activated sludge (TWAS) using semicontinuous-flow completely-mixed anaerobic ...

Precision Energy Services, Inc. (PES) of Hayden, Idaho, recently designed and supplied a recycled paper mill sludge-to-energy system for Atlantic Packaging in Ontario, Canada. This system is designed ...

The University of Twente is helping the paper industry to convert paper sludge -- the largest waste stream from paper factories -- into bio-oils and raw materials suitable for re-use. At the end of ...

Ever thought of putting sewage on your plants? Scientists say thermally conditioned sewage sludge serves as an excellent fertilizer to improve soil properties. The major advantage over commercial ...

Greater use of biomass for power generation is often constrained by the high moisture content of these fuels. As water content increases, heating value drops, hampering the economics of the biomass ...