More is better? Constructed wetlands filled with different amount of Fe oxides showed opposite phosphorus removal performance

2021 ◽  
pp. 129749
Author(s):  
Xiaojin Hu ◽  
Xiaodong Wan ◽  
Wei Tan ◽  
Huijun Xie ◽  
Linlan Zhuang ◽  
...  
Keyword(s):  
Constructed Wetlands ◽  
Phosphorus Removal ◽  
Fe Oxides

Vegetation contribution on phosphorus removal in constructed wetlands

2020 ◽  
Vol 152 ◽  
pp. 105853 ◽  
Author(s):  
Carmelo Maucieri ◽  
Michela Salvato ◽  
Maurizio Borin
Keyword(s):  
Constructed Wetlands ◽  
Phosphorus Removal

Study of oyster shell as a potential substrate for constructed wetlands

2013 ◽  
Vol 13 (4) ◽  
pp. 1007-1015 ◽  
Author(s):  
Zhen Wang ◽  
Jian Dong ◽  
Lin Liu ◽  
Gefu Zhu ◽  
Chaoxiang Liu
Keyword(s):  
Constructed Wetlands ◽  
Phosphorus Removal ◽  
Oyster Shell ◽  
Swine Wastewater ◽  
Vertical Flow ◽  
Flow State ◽  
Phosphorus Adsorption ◽  
Study Results ◽  
Predominant Form ◽  
Potential Substrate

We tested the suitability of oyster shell (OS) as a substrate for phosphorus removal in constructed wetlands (CWs) treating swine wastewater. OS is proven to have a significant phosphorus adsorption capacity; significant phosphorus removal was achieved in vertical subsurface flow constructed wetlands (VSSFs) that were filled with OS and used to treat swine wastewater. In the VSSF system, OS adsorption and precipitation played the greatest role in phosphorus removal, and the phosphorus distribution in the substrate layers was attributed to the vertical flow state of wastewater in the system. Ca–P was the predominant form of phosphorus in the system. Overall, the study results showed that OS could be used for phosphorus removal in CWs. OS also allowed for reuse of a waste substance, making the overall system more environmentally friendly.

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