Alkalizacja jako metoda wstępnej hydrolizy osadu czynnego przed procesem fermentacji beztlenowej

• Autorzy: Grübel Klaudiusz , Wacławek Stanisław

Identyfikatory

DOI

10.53052/pjmee.2021.1.02

Warianty tytułu

EN

Alkalization as a method of preliminary hydrolysis of waste activated sludge before the anaerobic digestion process

• Języki publikacji: PL

Abstrakty

EN

The aim of the research work was to determine the possibility of initial hydrolysis of the waste activated sludge with the use of the alkalization process. On the basis of the tests performed, it was found that the obtained pH value drops quite quickly after adding NaOH. In practice, after a period of 30 minutes, a further decrease in the pH value takes place, but at a lower rate. Therefore, 30 minutes was considered as a technically valid reaction time. After this reaction time, the COD (soluble COD; S-COD) values were recorded. They represented the release of organic matter into the liquid phase. In addition, a second disintegration method was carried out, on the alkalized earlier waste activated sludge, based on the phenomenon of hydrodynamic cavitation. Carrying out such a hybrid method of destroying activated sludge flocs and microorganisms contributed to the achievement of much greater hydrolysis effects. On the basis of the conducted research, it can be concluded that the use of such hydrolysis processes lead to good results in relation to further sludge processing, e.g. anaerobic digestion, which may result in a significant improve- ment in biogas production and an increase in biogas yield.

Słowa kluczowe

PL

alkalizacja; osad czynny; hydroliza; dezintegracja hydrodynamiczna

EN

alkalization; waste activated sludge; hydrolysis; hydrodynamic disintegration

• Wydawca: Wydawnictwo Naukowe Uniwersytetu Bielsko-Bialskiego
• Czasopismo: Polish Journal of Materials and Environmental Engineering
• Rocznik: 2021
• Tom: Vol. 1 (21)
• Strony: 16--25
• Opis fizyczny: Bibliogr. 19 poz., tab., wykr.

Twórcy

autor

Grübel Klaudiusz

• University of Bielsko-Biala, Department of Environmental Protection and Engineering, Willowa 2, 43-309 Bielsko-Biala, Poland

• https://orcid.org/0000-0002-0787-9324+

autor

Wacławek Stanisław

• Technical University of Liberec, Institute for Nanomaterials, Advanced Technologies and Innovation, Studentská 1402/2, 46117 Liberec 1, Czech Republic

• https://orcid.org/0000-0002-8430-8269

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).