Nitrification of secondary effluent using a variant of the vertical flow bed system was investigated. In this vertical flow bed oxygen required for the nitrification process is supplied by a passive air pump. The passive air pump is based on a fill and draw cycle, where oxygen depleted air is removed from the system and fresh air is introduced. Each volume of effluent drained is displaced by an equal volume of fresh air. Experimental results of nitrification and the corresponding oxygen consumption show good agreement with theoretical calculations based on physico-chemical considerations.
Research Article|March 01 1997
Investigation of alternative method for nitrification in constructed wetlands
Water Sci Technol (1997) 35 (5): 63-70.
Michal Green, Eran Friedler, Yuri Ruskol, Iris Safrai; Investigation of alternative method for nitrification in constructed wetlands. Water Sci Technol 1 March 1997; 35 (5): 63–70. doi: https://doi.org/10.2166/wst.1997.0166
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