AN UPDATE ON FULL SCALE 2-PHASE AG SYSTEMS – 2002
Abstract:This paper is about what is arguably the fastest growing digestion technology among larger US wastewater treatment plants. In an earlier paper the primary author assessed a broad range of two-phase digestion processes, including AG (two-phase Acid/Gas) processes. At that time only one of these was in operation, several were in design or construction and all were in the US. The focus was originally on improved volatile solids (VS) destruction, elimination of foam, lower construction and operating costs, greater stability and continuously fed process versions. This paper emphasizes applying AG processes to get Class A biosolids and the use of batch or intermittent versions. This paper includes an update on the status of these plus the current status of known projects. This paper is based upon status as of October 2001. The podium presentation will be updated to the most recent information available. This will be the 2002 update of earlier papers.
Document Type: Research Article
Publication date: January 1, 2002
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