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

2017 ◽  
Vol 243 ◽  
pp. 204-211 ◽  
Author(s):  
Lu Du ◽  
Qianru Chen ◽  
Panpan Liu ◽  
Xia Zhang ◽  
Huihui Wang ◽  
...  
Keyword(s):  
Constructed Wetlands ◽  
Phosphorus Removal ◽  
Reclaimed Water ◽  
Vertical Flow ◽  
Vertical Flow Constructed Wetlands

Comparative research on phosphorus removal by pilot-scale vertical flow constructed wetlands using steel slag and modified steel slag as substrates

2015 ◽  
Vol 71 (7) ◽  
pp. 996-1003 ◽  
Author(s):  
Yupan Yun ◽  
Xiaoqin Zhou ◽  
Zifu Li ◽  
Sayed Mohammad Nazim Uddin ◽  
Xiaofeng Bai
Keyword(s):  
Constructed Wetlands ◽  
Phosphorus Removal ◽  
Steel Slag ◽  
Pilot Scale ◽  
Phosphorus Concentration ◽  
Vertical Flow ◽  
Phosphorus Adsorption ◽  
Vertical Flow Constructed Wetlands ◽  
Low Phosphorus ◽  
Set Up

This research mainly focused on the phosphorus removal performance of pilot-scale vertical flow constructed wetlands with steel slag (SS) and modified steel slag (MSS). First, bench-scale experiments were conducted to evaluate the phosphorus adsorption capacity. Results showed that the Langmuir model could better describe the adsorption characteristics of the two materials; the maximum adsorption of MSS reached 12.7 mg/g, increasing by 34% compared to SS (9.5 mg/g). Moreover, pilot-scale constructed wetlands with SS and MSS were set up outdoors. Then, the influence of hydraulic retention time (HRT) and phosphorus concentration in phosphorus removal for two wetlands were investigated. Results revealed that better performance of the two systems could be achieved with an HRT of 2 d and phosphorus concentration in the range of 3–4.5 mg/L; the system with MSS had a better removal efficiency than the one with SS in the same control operation. Finally, the study implied that MSS could be used as a promising substrate for wetlands to treat wastewater with a high phosphorus concentration. However, considering energy consumption, SS could be regarded as a better alternative for substrate when treating sewage with a low phosphorus concentration.

Wavy Subsurface Flow and Vertical Flow Constructed Wetlands: Effects of Aeration and Wastewater Composition on Wetland Clogging

2015 ◽  
Vol 141 (9) ◽  
pp. 04015018 ◽  
Author(s):  
Yongzheng Ren ◽  
Qilong Gong ◽  
Tian C. Zhang ◽  
Jianxiong Kang ◽  
Dongqi Liu
Keyword(s):  
Constructed Wetlands ◽  
Subsurface Flow ◽  
Vertical Flow ◽  
Vertical Flow Constructed Wetlands

Removal of chlorpyrifos in recirculating vertical flow constructed wetlands with five wetland plant species

Chemosphere ◽  
2019 ◽  
Vol 216 ◽  
pp. 195-202 ◽  
Author(s):  
Xiao-Yan Tang ◽  
Yang Yang ◽  
Murray B. McBride ◽  
Ran Tao ◽  
Yu-Nv Dai ◽  
...  
Keyword(s):  
Plant Species ◽  
Constructed Wetlands ◽  
Vertical Flow ◽  
Wetland Plant ◽  
Vertical Flow Constructed Wetlands
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