TY - JOUR N2 - This study investigated the operation of three full-scale Lemna System surface fl ow municipal wastewater treatment plants, built according to the Lemna Corporation design. These plants consist of two ponds, the first aerated and the second for duckweed, with a barrier grid in the latter to ensure uniform plant distribution across its area. According to designers duckweed improves the efficiency of wastewater treatment. The three treatment plants are situated in central Poland and they differ in the occurrence of duckweed, two of them, located in Raków and Bąkowiec, operate without duckweed. and the third in Falęcin Stary, Lemna minor covers ca. 90% of second pond surface. The efficiency of Lemna System wastewater treatment was found not to differ between the plants with and without duckweed. The aerated pond played the main role in reduction of pollutants in the investigated Lemna Systems L1 - http://journals.pan.pl/Content/86078/PDF/10265-Volume41-Issue3_paper_06.pdf L2 - http://journals.pan.pl/Content/86078 PY - 2015 IS - No 3 DO - 10.1515/aep-2015-0029 KW - municipal wastewater KW - Constructed wetlands KW - Lemna System KW - Lemna minor A1 - Ozimek, Teresa A1 - Dąbrowski, Wojciech A1 - Florkiewicz, Maria PB - Polish Academy of Sciences VL - vol. 41 DA - 2015[2015.01.01 AD - 2015.12.31 AD] T1 - Duckweed does not improve the efficiency of municipal wastewater treatment in lemna system plants / Rzęsa nie poprawia efektywności oczyszczania ścieków komunalnych w oczyszczalniach typu Lemna System UR - http://journals.pan.pl/dlibra/publication/edition/86078 T2 - Archives of Environmental Protection ER -