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hjic-1260	doi.org	https://doi.org/10.33927/hjic-2025-13
hjic-1260	eur-lex.europa.eu	https://eur-lex.europa.eu/eli/dir/2024/3019/oj/eng
hjic-1260	eur-lex.europa.eu	https://eur-lex.europa.eu/eli/dir/2024/3019/oj/eng
hjic-1260	doi.org	https://doi.org/10.1016/j.dwt.2024.100299
hjic-1260	doi.org	https://doi.org/10.1016/j.jwpe.2024.105725
hjic-1260	doi.org	https://doi.org/10.1016/j.psep.2023.11.078
hjic-1260	doi.org	https://doi.org/10.33927/hjic-2022-19
hjic-1260	doi.org	https://doi.org/10.1021/es5006169
hjic-1260	doi.org	https://doi.org/10.1016/j.jclepro.2023.139562
hjic-1260	doi.org	https://doi.org/10.1016/j.scitotenv.2021.145833
hjic-1260	doi.org	https://doi.org/10.3390/resources11100094
hjic-1260	doi.org	https://doi.org/10.1016/j.chemosphere.2024.142705
hjic-1260	www.epa.ie	https://www.epa.ie/publications/research/water/research255.php
hjic-1260	www.iso.org	https://www.iso.org/standard/37456.html
hjic-1260	www.iso.org	https://www.iso.org/standard/38498.html
hjic-1260	net.jogtar.hu	https://net.jogtar.hu/jogszabaly?docid=a0400028.kvv
hjic-1260	net.jogtar.hu	https://net.jogtar.hu/jogszabaly?docid=a0100050.kor
hjic-1260	20102014.kormany.hu	https://20102014.kormany.hu/download/7/d7/70000/hungarian%20energy
hjic-1260	www.chemengonline.com	https://www.chemengonline.com/challenges-handlingfilamentous-viscous-wastewater-sludge
hjic-1260	www.iiste.org	https://www.iiste.org/journals/index.php/jetp/article/view/276
hjic-1260	sgc.camero.se	http://sgc.camero.se/ckfinder/userfiles/files/basicdataonbiogas
hjic-1260	doi.org	https://doi.org/10.1016/j.watres.2020.116058
hjic-1260	doi.org	https://doi.org/10.3390/w13091246
hjic-1260	doi.org	https://doi.org/10.3390/w16081177
hjic-1260	doi.org	https://doi.org/10.1016/j.watres.2014.03.023
hjic-1260	www.epa.ie	https://www.epa.ie/publications/research/water/research-255.php
hjic-1260	www.epa.ie	https://www.epa.ie/publications/research/water/research-255.php
hjic-1260	doi.org	https://doi.org/10.1007/s11367-017-1316-9
hjic-1260	doi.org	https://doi.org/10.1016/j.scitotenv.2022.156422
hjic-1260	doi.org	https://doi.org/10.33927/hjic-2023-17
hjic-1260	www.iso.org	https://www.iso.org/standard/37456.html
hjic-1260	www.iso.org	https://www.iso.org/standard/38498.html
hjic-1260	net.jogtar.hu	https://net.jogtar.hu/jogszabaly?docid=a0400028.kvv
hjic-1260	net.jogtar.hu	https://net.jogtar.hu/jogszabaly?docid=a0100050.kor
hjic-1260	doi.org	https://doi.org/10.1016/j.jclepro.2023.137507
hjic-1260	2010-2014.kormany.hu	https://2010-2014.kormany.hu/download/7/d7/70000/hungarian%20energy%20strategy%202030.pdf
hjic-1260	2010-2014.kormany.hu	https://2010-2014.kormany.hu/download/7/d7/70000/hungarian%20energy%20strategy%202030.pdf
hjic-1260	2010-2014.kormany.hu	https://2010-2014.kormany.hu/download/7/d7/70000/hungarian%20energy%20strategy%202030.pdf
hjic-1260	doi.org	https://doi.org/10.1007/s11367-016-1246-y
hjic-1260	doi.org	https://doi.org/10.1007/s11367-016-1246-y
hjic-1260	doi.org	https://doi.org/10.1016/j.scitotenv.2023.167801
hjic-1260	doi.org	https://doi.org/10.1201/9781498710817
hjic-1260	www.chemengonline.com	https://www.chemengonline.com/challenges-handling-filamentous-viscous-wastewater-sludge
hjic-1260	www.chemengonline.com	https://www.chemengonline.com/challenges-handling-filamentous-viscous-wastewater-sludge
hjic-1260	www.iiste.org	https://www.iiste.org/journals/index.php/jetp/article/view/27633
hjic-1260	www.iiste.org	https://www.iiste.org/journals/index.php/jetp/article/view/27633
hjic-1260	sgc.camero.se	http://sgc.camero.se/ckfinder/userfiles/files/basicdataonbiogas2012.pdf
hjic-1260	sgc.camero.se	http://sgc.camero.se/ckfinder/userfiles/files/basicdataonbiogas2012.pdf
hjic-1260	doi.org	https://doi.org/10.1016/j.biombioe.2023.106996
hjic-1260	doi.org	https://doi.org/10.1016/j.biteb.2024.101856
hjic-1260	doi.org	https://doi.org/10.1016/j.jclepro.2018.11.073
hjic-1260	doi.org	https://doi.org/10.1016/j.jclepro.2021.129107
hjic-1260	doi.org	https://doi.org/10.1016/j.ese.2022.100180
hjic-1260	doi.org	https://doi.org/10.1016/j.jenvman.2024.123732
hjic-1260	doi.org	https://doi.org/10.1007/978-3-319-56475-3_34
hjic-1260	doi.org	https://doi.org/10.1016/j.jclepro.2018.04.125
hjic-1260	doi.org	https://doi.org/10.1016/j.scitotenv.2019.07.378
hjic-1260	doi.org	https://doi.org/10.1016/j.jwpe.2024.105664
hjic-1260	doi.org	https://doi.org/10.1016/j.scitotenv.2012.07.084
hjic-1260	doi.org	https://doi.org/10.1016/j.jenvman.2013.08.018
hjic-1260	doi.org	https://doi.org/10.1016/j.jclepro.2016.07.209