Abstract
The Efficiency of Aquatic Macrophytes on the Nitrogen and Phosphorous Uptake from Pond Effluents in Different Seasons
Highlights
Aquatic macrophytes are widely used around the world in constructed wetlands for the purpose of removing N and P from polluted water Vymazal, [2013]
Unlike pH, water temperature and Dissolved oxygen (DO) were fluctuating within the seasons with high temperatures observed in summer and the lowest was observed in winter and DO was high during summer, see Figure 1
The presented results were not far from those obtained by [Yang et al, 2019], in which the amount of dissolved oxygen and temperature in water were varying within seasons, while pH was not affected by seasonal changes
Summary
Aquatic macrophytes are widely used around the world in constructed wetlands for the purpose of removing N and P from polluted water Vymazal, [2013]. Several studies were conducted regarding the use of aquatic macrophytes on treating wastewater from different sources; for example, Lu, Fu, & Yin, [2008]; Reddy & DeBusk, [1985] used E. crassipes to treat effluent from duck farm, Tabinda et al, [2019] used P. stratiotes, E. crassipes and Oedogonium sp. Floating macrophytes are not dependent on soil or water depth while submerged or merged ones depend on both. They tend to cover the water surface and block out the passage of light to the water below, denying algae to grow and reproduce by limiting the energy supply. Many aquatic macrophytes and other terrestrial plants were found to be hyper-accumulators or accumulators of organic as well as inorganic contaminants in different polluted areas Jatav and Singh, [2015]
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