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Two-phase, anaerobic digestion consists of at least four separate concepts: Acid/gas phase Anaerobic Digestion (sometimes called DuPage two phase digestion), Anaerobic Stabilization Thermophilic Mesophilic Digestion (ASTM) and Temperature Phased Digestion (TPAD)and Thermal Hydroylis/Gas phase Anaerobic Digestion (THG). Based upon information from full scale operating systems, these have the ability – versus similar sized single stage mesophilic digesters – to produce less, and a better quality, biosolids, while usually being more economical to build and operate. These technologies offer the possibility of inexpensive, fast expansions / upgrades of existing anaerobic digestion systems.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864701785019001

Publication date: January 1, 2001

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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