Effectiveness of vegetation on phosphorus removal from reclaimed water by a subsurface flow wetland in a coastal area

Constructed wetlands for domestic wastewater treatment in a Mediterranean climate region in Chile

“…Phosphorous removal increased at higher phosphorous concentration. On the contrary, Shan et al (2011), found that the removal efficiencies of CWs with plants might be higher when the nutrient load de crease.…”

“…It is known that different porous media through physicochemical mechanisms can improve phosphorous removal, (Vymazal, 2007;Cui et al 2008). For other hand, plants, mainly through uptake processes, can rise until 40% the removal, or indirectly they can influence positively the growth or activation of microbial removal (Camacho et al 2007;Shan et al 2011), thereby then plants as well as the media could improve the removal efficiency, suggesting a synergistic relation of both in phosphorous removal.…”

A combined application of different engineering and biological techniques to remediate a heavily polluted river

“…TP decreased from 1.4 to 0.1 mg L −1 , and then increased to ∼0.3 mg L −1 . The results indicated BAF process and ecological floating bed can remove phosphate (Yang et al, 2009;Shan et al, 2011), decreasing TP concentration significantly. 3.3.…”

“…In order to enhance the purification by ecological floating beds (Hadad and Maine, 2007;Shan et al, 2011;Jia et al, 2011), local hydrophytic plants were used to set up ecological floating beds along the riverbank at different locations. In order to recover the river ecosystem and also improve its esthetic appeal, mechanical aeration, biological aerated filters, artificial biofilms and ecological floating bed were all combined.…”

Phosphorus removal performance and biological dephosphorization process in treating reclaimed water by Integrated Vertical-flow Constructed Wetlands (IVCWs)

“…Constructed wetlands (CWs) are recognized as a low-cost technology for treating wastewater (Faulwetter et al, 2009) and have been widely used for their low construction and operation costs, convenient management, and excellent removal efficiency. Wastewater treatment plants followed by constructed wetlands [horizontal subsurface-flow constructed wetland (Andreo-Martinez et al, 2017), subsurface flow wetland (Shan et al, 2011), horizontal flow constructed wetlands (Matamoros et al, 2017), and vertical-flow constructed wetland (Zhang et al, 2015)] are an effective advanced treatment for organic matter removal. As different wetland types have varied effects on the redox condition and could accelerate the process of biological phosphorus removal, many researchers have integrated various types of wetlands in certain systems to create hybrid-constructed wetlands in order to obtain higher treatment efficiency (Zhao et al, 2011).…”