Improvement of the thermophilic anaerobic digestion and hygienisation of waste activated sludge by synergistic pretreatment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F19%3A00006225" target="_blank" >RIV/46747885:24620/19:00006225 - isvavai.cz</a>
Result on the web
<a href="https://www.tandfonline.com/doi/full/10.1080/10934529.2019.1579540" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/10934529.2019.1579540</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/10934529.2019.1579540" target="_blank" >10.1080/10934529.2019.1579540</a>
Alternative languages
Result language
angličtina
Original language name
Improvement of the thermophilic anaerobic digestion and hygienisation of waste activated sludge by synergistic pretreatment
Original language description
Hybrid disintegration of waste activated sludge (WAS) before the thermophilic anaerobic stabilization of WAS contributes to the intensification of organic compounds decomposition and increases the effectiveness of the anaerobic stabilization process compared to the fermentation of raw WAS. This article investigates the influence of a chemical–thermal pretreatment procedure with the use of NaOH and freezing by the dry ice on WAS. We found that the hybrid pretreatment of WAS causes higher concentration of released organics in the liquid phase (represented here as a change in soluble chemical oxygen demand – SCOD value) in comparison to these disintegration techniques used separately. The use of disintegrated WAS (WASD) as an additional material in the digester chambers impacts (varying on its proportion added), the generation of biogas and its yield. The recorded amount of the produced biogas and biogas yield after 21 days of fermentation increased by 26.6% and 2.7%, respectively (in comparison to blank sample). In addition, it was observed that the hybrid process before anaerobic stabilization contributes to a higher hygienisation of the digested sludge.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20701 - Environmental and geological engineering, geotechnics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering
ISSN
1093-4529
e-ISSN
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Volume of the periodical
54
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
694-700
UT code for WoS article
000471976900011
EID of the result in the Scopus database
2-s2.0-85062345004