In a news release, town officials said that the grant money will be used to add an aerobic digester and a screw press, used to remove liquids from solids. Nederland voters in April approved a ballot ...

A combined anaerobic/aerobic sludge digestion system was studied to determine the effect of aerobic solids retention time (SRT) on its solids and nitrogen removal efficiencies. After the anaerobic ...

Higher aerobic digestion rates and improved levels of waste activated sludge stabilization were sought through a physico-chemical pretreatment step that modified the substrate of the conventional ...

The Adam Joseph Lewis Center at Oberlin (Ohio) College incorporates a wastewater-treatment system-deemed a 'living machine'-designed to recycle up to 2,000 gallons of the building's wastewater daily ...

The state of Colorado has new regulations for allowable levels of nitrogen in wastewater, so the city of Boulder sought an innovative solution. The city is using waste from Avery Brewing in Boulder to ...

Each year, the United States produces more than 12 million tons of sludge – the thick mixture of solid and liquid matter left over from processing wastewater and raw sewage in treatment plants. And it ...