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The potential of ozonation to reduce impact of waste sludge-entrapped microplastics to biogas production
ID
Lekše, Nina
(
Author
),
ID
Griessler Bulc, Tjaša
(
Author
),
ID
Žgajnar Gotvajn, Andreja
(
Author
)
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MD5: F0C3273669CCFB5E5CB528C4AF39129B
URL - Source URL, Visit
https://www.tandfonline.com/doi/full/10.1080/01919512.2024.2332286
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Abstract
Due to low degradability of plastic materials, high usage, and low cost, microplastics (MPs) is becoming ubiquitous environmental pollutant. Wastewater treatment plants (WWTP) are one of main sources, where most of the MPs from wastewaters ends in waste sludge. Anaerobic digestion is one of most promised techniques of waste sludge management. The aim of this paper was to evaluate the impact of polyethylene terephthalate (PET) and polypropylene (PP) microplastics in the waste sludge with and without ozonation as possible pretreatment, on biogas and methane production with OxiTop$^®$ method. In the first set of experiments, PET inhibited (up to 6% at 0.1 g $L^{−1}$) or promoted (up to 3% at 1 g $L^{−1}$) methane production but increased cumulative biogas production (up to 38% at 0.5 g $L^{−1}$). PP inhibited methane production (up to 5% at 0.5 g $L^{−1}$) but its impact on biogas production was dependent upon concentration of MPs added. In the second set of experiments, pretreatment of non-contaminated waste sludge by ozonation (3.54 $g_{ozone}$ $h^{−1}$) inhibited methane yield. Longer time of ozonation of PP-contaminated waste sludge reduced inhibition of methane yield, while in the case of PET-contaminated waste sludge, it was increased.
Language:
English
Keywords:
biogas production
,
methane yield
,
ozonation
,
polyethylene terephthalate
,
polypropylene
,
waste sludge
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FKKT - Faculty of Chemistry and Chemical Technology
ZF - Faculty of Health Sciences
Publication status:
Published
Publication version:
Version of Record
Year:
2024
Number of pages:
Str. 255–266
Numbering:
Vol. 46, no. 3
PID:
20.500.12556/RUL-155486
UDC:
66.094.3-926.214
ISSN on article:
0191-9512
DOI:
10.1080/01919512.2024.2332286
COBISS.SI-ID:
191347203
Publication date in RUL:
04.04.2024
Views:
273
Downloads:
188
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Record is a part of a journal
Title:
Ozone: science & engineering
Shortened title:
Ozone: sci. eng.
Publisher:
Taylor & Francis, International Ozone Association
ISSN:
0191-9512
COBISS.SI-ID:
2223382
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Secondary language
Language:
Slovenian
Keywords:
proizvodnja bioplina
,
donos metana
,
ozonacija
,
polietilenteraftalat
,
polipropilen
,
odpadno blato
Projects
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
P2-0191
Name:
Kemijsko inženirstvo
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
P3-0388
Name:
Mehanizmi varovanja zdravja
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
J2-4427
Name:
Algne tehnologije za zelene produkte - ALGreen
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
L7-4422
Name:
"Uptake": ponovna uporaba vode in blata iz čistilnih naprav v kmetijstvu: privzem in porazdelitev prioritetnih onesnažil v modelni rastlini paradižnika
Funder:
ARIS - Slovenian Research and Innovation Agency
Project number:
I0-0022
Name:
Mreža raziskovalnih infrastrukturnih centrov Univerze v Ljubljani (MRIC UL)
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