NITROGEN ACCUMULATION IN A CONSTRUCTED WETLAND FOR DAIRY WASTEWATER TREATMENT

摘要

A free water surface(FWS)constructed wetland was installed at a diary in Glendale, Arizona, to study the potential of such a wetland to remove nitrogen(N)from wastewater. The study objectives were:(1)to determine N removal from the wastewater, and(2)to evaluate N accumulation in soil and plant tissues. The system consisted of eight cells(70 x 9 x 1.5 m)planted with Typha domingensis, Scirpus validus, and Phragmites australis.