This is a preview. Log in through your library . Abstract A test was conducted to induce foaming by varying the waste activated sludge (WAS) content in the feed sludge at increasingly higher organic ...

The death of a sewage plant maintenance worker in 2004 set the stage for a multimillion dollar project to build two egg-shaped sewage “digesters” at Spokane’s wastewater treatment plant on Aubrey L.

MAXIMISING THE benefits of an anaerobic digestion system by achieving a higher gas yield, reducing foaming and eliminating maintenance problems were the important benefits achieved following the ...

Anaerobic digesters should be familiar equipment to designers and operators alike because they have been a standard feature of WwTWs since the 1930s and the focus of yet more attention since the Kyoto ...

The catwalk atop Spokane’s two new egg-shaped sewer digesters next to the Spokane River offers a panoramic view of a honeycomb of pipes, pumps and valves – the guts of a $45 million investment in the ...