In the countries of the region, Hungary, with 80.4 percent of the population, is connected to the system with wastewater treatment with the least secondary treatment, convincingly in the first place, while in Serbia, that percentage is only 12.9 percent.
According to the data for 2018, Slovenia is behind Hungary (68.9 percent), Bulgaria (63.7 percent), Romania (48.1 percent) and Croatia (36.9 percent), the Republic Bureau of Statistics announced today.
Seen over a period of eight years, the greatest progress from 2010 to 2018 was made by Romania, where 11 years ago there were slightly more than 20% of the population connected to the wastewater treatment system by at least secondary treatment, while three years ago they approached 50 percent.
Bulgaria and Slovenia have also made significant progress, while Croatia has stagnated. Serbia made little progress, so in 2010 it was just below 10 percent, and eight years later it reached less than 13 percent.
Treatment of urban wastewater with at least secondary treatment, in fact, involves biological treatment with secondary collection or other processes, resulting in a removal of at least 70 percent in biological oxygen consumption and at least 75 percent in chemical oxygen demand, Danas reports.
