Stručni rad
https://doi.org/10.33765/thate.12.1.2
SEWAGE SLUDGE MANAGEMENT AT THE CENTRAL WASTEWATER TREATMENT PLANT LJUBLJANA – CHARACTERIZATION OF ITS PROPERTIES, POSSIBILITIES FOR SUSTAINABLE UTILIZATION AND LEGISLATIVE OBSTACLES
Vesna Mislej
orcid.org/0000-0002-5793-589X
; JP VODOVOD KANALIZACIJA SNAGA d.o.o., Ljubljana, Slovenia
Viktor Grilc
; Environmental Protection College Velenje, Velenje, Slovenia
Barbara Novosel
; University of Ljubljana, Faculty of Chemistry and Chemical Technology, Ljubljana, Slovenia
Ana Mladenovič
; Slovenian National Building and Civil Engineering Institute, Ljubljana, Slovenia
Vesna Zalar Serjun
; Slovenian National Building and Civil Engineering Institute, Ljubljana, Slovenia
Sažetak
The treated sewage sludge under consideration is a hygienized biodegradable waste in the form of pellets. It can be used as a fertilizer, but only for spreading on non-agricultural land. Regarding “waste to energy” philosophy, the specification of pellets as an alternative solid fuel according to EN 15359 resulted in “NCV4; Cl1; Hg3-4” class. The major problem regarding the final pellets utilization is the lack of facilities for energy and material recovery from this type of waste in Slovenia. According to the newest legislation regarding the waste management, a product status for residues generated in combustion and pyrolysis of pellets on a laboratory and semi-pilot scale was not achieved. The holistic approach to final pellets utilization was studied and regarding the full-scale level of self-sufficient sewage sludge management in Slovenia, some legislative provisions become significant obstacles.
Ključne riječi
sewage sludge management; sustainable utilization; legislative obstacles
Hrčak ID:
267155
URI
Datum izdavanja:
14.12.2021.
Posjeta: 641 *