The two phase anaerobic digestion process: sludge stabilization and pathogens reduction
- 1 November 2000
- journal article
- Published by IWA Publishing in Water Science & Technology
- Vol. 42 (9) , 41-47
- https://doi.org/10.2166/wst.2000.0166
Abstract
Regulations for land application of wastewater sludges require the performing of treatment with a high efficiency on pathogens reduction. a reduction of 61% of the Volatile Solids content of the sludge, a reduction of fecal coliform, polio virus and Ascaris egg of 5.5, 4.0 and 2.6 respectively are achieved with a thermmophilic/mesophilic Two Phase Anaerobic Digestion process. According to the EPA 40 CFR 503 regulation, the process produces Class A biosolids and could be recommended as a Process to Further Reduce Pathogens.Keywords
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