. . . . . . "2"^^ . "Venice (Italy)" . "2"^^ . . . "IWA" . . "Three-stage constructed wetland for treatment of municipal sewage consists of a saturated vertical flow wetland, free-drain vertical wetland and horizontal subsurface flow wetland staged in series. After the second stage the water is recirculated (1:1) to the first wetland. This arrangement was selected in order to primarily achieve high removal of both ammonia and nitrate. The average COD concentrations were 245, 102, 48 and 40 mg L-1 in the inflow and after each stage, respectively with the last concentration representing the final outflow. Removal of ammonia-N was also very efficient with respective concentrations of 26.6, 18.2, 2.7 and 2.8 mg L-1. The oxidation of ammonia-N took place in the second (freedrain) vertical stage and interestingly the NH4-N concentration remained below 2 mg L-1 during the whole January 2010 when the air temperatures were constantly below 0\u00B0C and occasionally dropped down to -20\u00B0C."@en . . "2010-10-04+02:00"^^ . . . "Wetland Systems for Water Pollution Kontrol" . "292860" . . "Kr\u00F6pfelov\u00E1, Lenka" . "Constructed wetlands; Czech Republic; intermittent feeding; nitrogen; wastewater"@en . "P(ME 876)" . "Three-stage constructed wetland for on-site wastewater treatment"@en . "[3AE89BA9853A]" . . . "Three-stage constructed wetland for treatment of municipal sewage consists of a saturated vertical flow wetland, free-drain vertical wetland and horizontal subsurface flow wetland staged in series. After the second stage the water is recirculated (1:1) to the first wetland. This arrangement was selected in order to primarily achieve high removal of both ammonia and nitrate. The average COD concentrations were 245, 102, 48 and 40 mg L-1 in the inflow and after each stage, respectively with the last concentration representing the final outflow. Removal of ammonia-N was also very efficient with respective concentrations of 26.6, 18.2, 2.7 and 2.8 mg L-1. The oxidation of ammonia-N took place in the second (freedrain) vertical stage and interestingly the NH4-N concentration remained below 2 mg L-1 during the whole January 2010 when the air temperatures were constantly below 0\u00B0C and occasionally dropped down to -20\u00B0C." . . "Three-stage constructed wetland for on-site wastewater treatment" . . . "Venice" . "2"^^ . "Three-stage constructed wetland for on-site wastewater treatment"@en . "RIV/25173154:_____/10:#0000158" . . "Vymazal, Jan" . "RIV/25173154:_____/10:#0000158!RIV11-MSM-25173154" . "Three-stage constructed wetland for on-site wastewater treatment" . "978-88-6060-300-5" .