The indicator shows .the annual quantity of sludge from wastewater treatment plants in Slovenia and ways of sludge treatment
Sludge from wastewater treatment plants is defined as waste material that is a by-product of wastewater purification in wastewater treatment plants or remains after emptying domestic wastewater cesspools.
The treatment of this kind of waste is governed by the Decree on waste management (Official Gazette of the Republic of Slovenia nr. 37/15, 69/15), Decree on the treatment of biodegradable waste and the use of compost or digestate (Official Gazette of the Republic of Slovenia nr. 99/13, 56/15) , Waste management program and a program to prevent waste of the Republic of Slovenia and the Decree on the management of sewage sludge from the urban waste water treatment plants (Official Gazette of the Republic of Slovenia, No. 62/08).
Special requirements regarding the emission of substances in wastewater discharged from urban wastewater treatment plants are defined in the Decree on the emission of substances in wastewater discharged from urban wastewater treatment plants.
Waste Water Treatment Plants Database, Environmental Agency of the Republic of Slovenia, 2016
2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | ||
---|---|---|---|---|---|---|---|---|---|---|---|
production of sewage sludge | 1000 t of dry matter | 8.8 | 8.2 | 7 | 9.01 | 12.87 | 16.98 | 20.16 | 21.63 | 20.43 | 28.59 |
use in agriculture | 1000 t of dry matter | 0.3 | 0.5 | 1.1 | 0.46 | 0.13 | 0.07 | 0.03 | 0.02 | 0.01 | 0.01 |
composting | 1000 t of dry matter | 1 | 0.9 | 0.9 | 0 | 0 | 0.12 | 0 | 3.53 | 2.29 | 0.51 |
landfill of waste | 1000 t of dry matter | 7.5 | 6.8 | 5 | 7.13 | 9 | 9.55 | 9.31 | 9.2 | 8.11 | 5.72 |
other | 1000 t of dry matter | np | np | np | 1.42 | 3.74 | 7.24 | 5.59 | 3.64 | 3.15 | 5.5 |
incineration | 1000 t of dry matter | np | np | np | np | np | np | 5.23 | 5.26 | 6.87 | 16.85 |
Waste Water Treatment Plants Database, Environmental Agency of the Republic of Slovenia, 2016
Program ravnanja z odpadki in program preprečevanja odpadkov Republike Slovenije, 2016
Marjan Zajc, Janja Podakar, Barbara Bernard Vukadin, Slovenian Environment agency