Researchers from the Faculty of Biology at the University of Warsaw (UW) have developed an economic and ecological alternative to wastewater management in rural areas called Constructed Wetlands – passive wastewater treatment system.

Traditional treatment plants are not always the best solution. Sometimes for economic and financial reasons they can be very difficult to implement. They generate not only high investment costs, but also related to the maintenance and conservation of installations.

An alternative to a relatively densely built-up town (due to the need to build a sewage system collecting sewage from individual houses) are Constructed Wetlands passive wastewater treatment systems. They are universal solutions, because they treat various types of sewage. They are economically effective already for towns with 100 inhabitants and are easy to expand.

Prof. Łukasz Drewniak from the Faculty of Biology of the University of Warsaw emphasizes that passive systems are characterized by simple operation, resistance to uneven sewage inflow and competitive costs resulting from the lack of the need for mixing, aeration or heating.