Update on 2-Phase AG Systems – 2008
This paper is about the acid-gas (AG) anaerobic digestion process. This is the first update presented by the authors since 2003. The AG process is arguably the fastest growing digestion technology among larger wastewater treatment plants (WWTPs) in the United States and is gaining popularity in the United Kingdom. Earlier papers have described the process and its evolution from a single mesophilic plant where the process was used in an effort to eliminate foaming problems and improve VSS destruction, through the first multi-phase plants, to plants producing Class A biosolids. This paper discusses the recent trend of effectively using the AG process to treat organic wastes, the rapid spread of the AG process in the United Kingdom, and an update discussing the current status of most known AG projects.
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Document Type: Research Article
Publication date: 2008-01-01
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