Krzysztof Wierzbicki, Andrzej Eymontt, Zenon Świgoń
Vol. no: 23
The construction of sanitary sewer systems in municipalities is increasingly challenging for them due to the high cost of their construction and the increasing scope of other new infrastructure investments financed by local governments. In place of collective systems, construction of individual treatment plants has begun for several years, of which, for example, about 200,000 were constructed in Poland in 2015. In the constructed treatment plants, in many cases, it was not possible to control the quality of treated wastewater due to the technologies used.