Number of wastewater treatment plants (urban - tertiary treatment of which nitrogen removal of plants) reached 26.0 in 2013 in Bulgaria, according to Eurostat. This is 18.2% more than in the previous year.
Historically, Number of Wastewater Treatment Plants (Urban - tertiary treatment of which nitrogen removal of plants) in Bulgaria reached an all time high of 26.0 in 2013 and an all time low of 15.0 in 2010.
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