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ATAD – Found, Developed, Forgotten? A historical and practical assessment of a technology for stabilization and disinfection of animal manure

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Autoheated thermophilic aerobic digestion (ATAD) has been operating at full scale Germany for nearly three decades. The process typically operates at 6–8 hydraulic retention time and is capable of achieving a high degree of stabilization pathogen reduction to meet international requirements (e.g. US EPA 503 class The process is characterized by high reaction rates which are achieved thermophilic temperatures ranging from 50–60°C. In the completely mixed aerated environment thermophilic temperatures are attained and sustained without the addition of sublemental heat by conserving the heat released during biological degradation.

Document Type: Research Article


Publication date: January 1, 2000

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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 These proceedings are not peer reviewed.

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