The conventional anaerobic digestion process, requiring long solids retention times (SRTs) to digest solids, is currently viewed as impractical for the pulp and paper industry because of high capital ...

GREENFIELD -- Department of Public Works director Donald Oulette presented inflated municipal cost data as he made the case for investing in a $6 million anaerobic digester to handle sewage sludge, ...

TYRONE — Borough Council this week authorized its solicitor to draw up an ordinance for a standing committee whose first task would be evaluating whether to install an anaerobic sludge digester at the ...