http://www.cnr.it/ontology/cnr/individuo/prodotto/ID229499
Reduced temperature hydrolysis at 134 °C before thermophilic anaerobic digestion of waste activated sludge at increasing organic load (Articolo in rivista)
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- Reduced temperature hydrolysis at 134 °C before thermophilic anaerobic digestion of waste activated sludge at increasing organic load (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.biortech.2013.05.069 (literal)
- Alternative label
Gianico A., Braguglia C.M., Cesarini R., Mininni G. (2013)
Reduced temperature hydrolysis at 134 °C before thermophilic anaerobic digestion of waste activated sludge at increasing organic load
in Bioresource technology
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Gianico A., Braguglia C.M., Cesarini R., Mininni G. (literal)
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- http://dx.doi.org/10.1016/j.biortech.2013.05.069 (literal)
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- Titolo
- Reduced temperature hydrolysis at 134 °C before thermophilic anaerobic digestion of waste activated sludge at increasing organic load (literal)
- Abstract
- The performance of thermophilic digestion of waste activated sludge, either untreated or thermal pretreated, was evaluated through semi-continuous tests carried out at organic loading rates in the range of 1-3.7 kg VS/m3 d.
Although the thermal pretreatment at T = 134 ?C proved to be effective in solubilizing organic matter, no significant gain in organics degradation was observed. However, the digestion of pretreated sludge showed significant soluble COD removal (more than 55%) whereas no removal occurred in control reactors.
The lower the initial sludge biodegradability, the higher the efficiency of thermal pretreated digestion was observed, in particular as regards higher biogas and methane production rates with respect to the parallel untreated sludge digestion. Heat balance of the combined thermal hydrolysis/thermophilic digestion process, applied on full-scale scenarios, showed positive values for direct combustion of methane.
In case of combined heat and power generation, attractive electric energy recoveries were obtained, with a positive heat balance at high load. (literal)
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