| Title: | Experimental and mathematical investigation of anaerobic granulate density via settling velocity |
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| Authors: | ID Klasinc, Aljaž (Author)
ID Zupančič, Gregor Drago (Author)
ID Hriberšek, Matjaž (Author)
ID Hribernik, Aleš (Author)
ID Lobnik, Aleksandra (Author)
ID Zadravec, Matej (Author) |
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| Files: |  processes-10-01833.pdf (2,17 MB)
MD5: 5A375CDDB21C4C5D9B06F6769EA4BC5A
 https://www.mdpi.com/2227-9717/10/9/1833
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FS - Faculty of Mechanical Engineering
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| Abstract: | The objective of this study was to determine the density of anaerobic granules on different
heights of a full-scale Upflow Anaerobic Sludge Bed reactor. The density was defined through the
settling velocities of anaerobic granules, measured in a full-scale Upflow Anaerobic Sludge Bed
reactor. In this study, granular density was calculated with the measured settling velocities and
developed mathematical model. The developed mathematical model is based on the Stokes model.
In the experiment, granules were taken from different heights of an Upflow Anaerobic Sludge Bed
reactor, from 0.6 to 7.6 m. The granules’ diameters varied between 1 and 5 mm. The granules were
taken from six different heights through the reactor. The settling velocity of the active granules
(with gas in the granule pore and on the surface of the granule) was measured first. After the active
granules’ settling velocity measurement, the granules were placed in a vortex to obtain degassed
granules (granules without any gas in the pores or on the surface), for which the settling velocities
were also measured later. It is shown that granules’ densities at different heights are independent of
the reactor height. |
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| Keywords: | Upflow Anaerobic Sludge Bed reactor, microstructure, anaerobic granular sludge, settling velocity, density |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 08.08.2022 |
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| Article acceptance date: | 09.09.2022 |
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| Publication date: | 12.09.2022 |
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| Publisher: | MDPI AG |
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| Year of publishing: | 2022 |
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| Number of pages: | Str. 1-11 |
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| Numbering: | Vol. 10, iss. 9 (1833) |
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| PID: | 20.500.12556/DKUM-92263  |
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| UDC: | 628.3:519.6 |
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| ISSN on article: | 2227-9717 |
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| COBISS.SI-ID: | 121036291 |
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| DOI: | 10.3390/pr10091833 |
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| Copyright: | © 2022 by the authors |
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| Publication date in DKUM: | 26.03.2025 |
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| Views: | 175 |
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| Downloads: | 15 |
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| Metadata: |    |
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| Categories: | Misc.
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