Synergetic disintegration of waste activated sludge: improvement of the anaerobic digestion and hygienization of sludge
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F18%3A00005662" target="_blank" >RIV/46747885:24620/18:00005662 - isvavai.cz</a>
Result on the web
<a href="https://www.ncbi.nlm.nih.gov/pubmed/30421665" target="_blank" >https://www.ncbi.nlm.nih.gov/pubmed/30421665</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/10934529.2018.1474579" target="_blank" >10.1080/10934529.2018.1474579</a>
Alternative languages
Result language
angličtina
Original language name
Synergetic disintegration of waste activated sludge: improvement of the anaerobic digestion and hygienization of sludge
Original language description
The main aim of this study was to investigate the impact of a hybrid disintegration process with the use of alkalization and freezing by dry ice on waste activated sludge (WAS) and on the course of the process of mesophilic methane fermentation. In order to achieve the mentioned goal, various analytical techniques were used for assessment of the sludge disintegration and its influence on the further biogas production. As a result of the investigation, it was found that the chemical-thermal process of destruction of WAS results in an increased concentration of organic compounds in the supernatant (expressed as a change in the value of the soluble chemical oxygen demand - SCOD). The use of disintegrated WAS and feeding of the material into the fermentation digester influences, depending on its proportion by volume, the production of biogas and the biogas yield (higher biogas production by ca. 39% in comparison to blank sample was achieved with the appropriately disintegrated sludge). The hybrid process is simple and easy to implement in the full technical scale and does not influence or change the pH value of the sludge feed into the fermentation chambers (the dry ice neutralizes the high pH of the sludge). Additionally, it was determined that the herein developed process, can improve hygienization 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
2018
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
53
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
1067-1074
UT code for WoS article
000450411500004
EID of the result in the Scopus database
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