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Digestion Performance of Various Combinations of Thermophilic and Mesophilic Sludge Digestion Systems
Various combinations of single‐ and multi‐stage anaerobic and aerobic‐anaerobic digestion systems were studied to evaluate their solids reduction potential with capabilities to control sulfur‐based biosolids odor compounds. All the multi‐stage digestion systems removed more volatile solids than the single‐stage anaerobic digestion systems, even at the same overall retention time. However, digestion systems with mesophilic digestion as the final stage showed a much lower headspace organic sulfur content in the dewatered biosolids than the systems with thermophilic digestion as the final stage. This observation leads to the conclusion that placing a mesophilic anaerobic digestion system at the end of multi‐stage digestion systems will enable greater sulfur‐based odor reduction from dewatered biosolids with greater solid reduction than single‐stage mesophilic or thermophilic digestion systems.
Digestion Performance of Various Combinations of Thermophilic and Mesophilic Sludge Digestion Systems
Various combinations of single‐ and multi‐stage anaerobic and aerobic‐anaerobic digestion systems were studied to evaluate their solids reduction potential with capabilities to control sulfur‐based biosolids odor compounds. All the multi‐stage digestion systems removed more volatile solids than the single‐stage anaerobic digestion systems, even at the same overall retention time. However, digestion systems with mesophilic digestion as the final stage showed a much lower headspace organic sulfur content in the dewatered biosolids than the systems with thermophilic digestion as the final stage. This observation leads to the conclusion that placing a mesophilic anaerobic digestion system at the end of multi‐stage digestion systems will enable greater sulfur‐based odor reduction from dewatered biosolids with greater solid reduction than single‐stage mesophilic or thermophilic digestion systems.
Digestion Performance of Various Combinations of Thermophilic and Mesophilic Sludge Digestion Systems
Kim, Jongmin (author) / Novak, John T. (author)
Water Environment Research ; 83 ; 44-52
2011-01-01
9 pages
Article (Journal)
Electronic Resource
English
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