Myriophyllum aquaticum Constructed Wetland Effectively Removes Nitrogen in Swine Wastewater.

ABSTRACT: Removal of nitrogen (N) is a critical aspect in the functioning of constructed wetlands (CWs), and the N treatment in CWs depends largely on the presence and activity of macrophytes and microorganisms. However, the effects of plants on microorganisms responsible for N removal are poorly understood. In this study, a three-stage surface flow CW was constructed in a pilot-scale within monospecies stands of Myriophyllum aquaticum to treat swine wastewater. Steady-state conditions were achieved throughout the 600-day operating period, and a high (98.3%) average ammonia removal efficiency under a N loading rate of 9 kg ha^-1 d^-1 was observed. To determine whether this high efficiency was associated with the performance of active microbes, the abundance, structure, and

SUBMITTER: Sun H 

PROVIDER: S-EPMC5635519 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature