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[VD02] Waste water treatment
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Key message
Neutral

In recent years, the amount of waste water treated by processes of secondary or tertiary treatment increased, while the amount with primary treatment decreased. The amount of wastewater that was treated with secondary treatment processes, has, since 2002, increased by 211% or 38 million m 3(in 2002) to 84 million m 3(in 2013). Tertiary wastewater treatment was almost nonexistent in Slovenia in 2003, while in 2013 43 % of all treated wastewater, or 65 million m 3 wastewater was treated by tertiary processes.

Charts

Figure VD02-1: Share of Slovenian population whose urban waste water was treated, in individual years, in urban or common waste water treatment plants of a certain treatment level
Sources:

Waste Water Treatment Plants Database, Environmental Agency of the Republic of Slovenia, 2014; Statistical Office of the Republic of Slovenia, 2014

Show data
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
primary % 24.9 22.5 24.2 21.9 19.9 19.9 19.2 17.9 3.7 3.6
secondary % 10.5 12.8 11 14.8 17.7 18.4 21.2 20.7 36.1 36.1
tertiary % 1.2 1.6 1.5 1 1.1 1.2 7.9 11.2 11.2 11.8
primary number 492746 448435 481688 435788 396317 397656 383662 357713 74003 73453
secondary number 208723 254682 219445 295701 352249 367210 422657 413731 725049 728030
tertiary number 23863 31740 30630 20304 21407 23144 156973 223207 225939 238797
population - total number 1982603 1988887 1990272 1992035 1995718 1996773 1997004 2001114 2008516 2019406
2008 2009 2010 2011 2012 2013
primary % 1.3 0.5 0.5 0.5 0.5 0.5
secondary % 37.4 35.9 36.3 36.6 34.9 33.1
tertiary % 12.8 15.5 16.2 17.5 19.3 21.8
primary number 26646 9330 9559 9416 9433 9416
secondary number 755504 732439 744823 751779 716846 682113
tertiary number 258746 316986 331136 359537 397624 449417
population - total number 2022629 2042335 2049261 2052496 2056262 2059114
Figure VD02-2: Quantity of waste water treated in urban or common waste water treatment plants of a certain treatment level
Sources:

Waste Water Treatment Plants Database, Environmental Agency of the Republic of Slovenia, 2014

Show data
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
primary 1000 m3 66151 62146 68077 55558 57904 46981 43997 48536 8779 8035
secondary 1000 m3 25731 33223 30132 33590 38675 38485 48409 45642 72965 77945
tertiary 1000 m3 2886 4619 3371 3093 2748 2633 12744 26656 27933 27209
2008 2009 2010 2011 2012 2013
primary 1000 m3 4560 467 458 450 433 446
secondary 1000 m3 90991 90124 98010 77349 81751 84645
tertiary 1000 m3 30694 41063 47193 42064 48261 65269
Last modified
21.05.2014
Author(s)

Marjan Zajc, Agencija Republike Slovenije za okolje