scholarly journals Efficiency and mechanism of treating the polluted river water with constructed wetland

2007 ◽  
Vol 19 (1) ◽  
pp. 32-38 ◽  
Author(s):  
ZHAO Jian ◽  
◽  
ZHU Wei ◽  
ZHAO Lianfang
Keyword(s):  
River Water ◽  
Constructed Wetland ◽  
Polluted River

Floating constructed wetland for the treatment of polluted river water: A pilot scale study on seasonal variation and shock load

2016 ◽  
Vol 287 ◽  
pp. 62-73 ◽  
Author(s):  
Tanveer Saeed ◽  
Biprojit Paul ◽  
Rumana Afrin ◽  
Abdullah Al-Muyeed ◽  
Guangzhi Sun
Keyword(s):  
Seasonal Variation ◽  
River Water ◽  
Constructed Wetland ◽  
Pilot Scale ◽  
Shock Load ◽  
Polluted River

Bioaugmentation in lab scale constructed wetland microcosms for treating polluted river water and domestic wastewater in northern China

2014 ◽  
Vol 95 ◽  
pp. 151-159 ◽  
Author(s):  
Yuanyuan Shao ◽  
Haiyan Pei ◽  
Wenrong Hu ◽  
Christopher Peter Chanway ◽  
Panpan Meng ◽  
...  
Keyword(s):  
River Water ◽  
Constructed Wetland ◽  
Domestic Wastewater ◽  
Northern China ◽  
Polluted River

Nutrient Removal from Polluted River Water by Using Vertical and Horizontal Subsurface Flow Constructed Wetlands

2011 ◽  
Vol 393-395 ◽  
pp. 1304-1307 ◽  
Author(s):  
En Shi ◽  
Zong Lian She ◽  
Tian Xie ◽  
Jian Wu ◽  
Xiao Hui Fu
Keyword(s):  
River Water ◽  
Constructed Wetlands ◽  
Constructed Wetland ◽  
Nutrient Removal ◽  
Subsurface Flow ◽  
Vertical Flow ◽  
Experiment Research ◽  
Nitrogen And Phosphorus ◽  
Polluted River ◽  
Subsurface Flow Constructed Wetland

The main purpose of this study was to treat organic pollutants, nitrogen and phosphorus in polluted river water by the use of constructed wetland (CW) systems. A laboratory experiment research was conducted on subsurface flow constructed wetland systems operated in vertical flow (VF) and horizontal flow (HF) mode. The systems were unplanted and hydraulic retention times were identically 2.7 days. The average removal efficiencies for HFCW and VFCW were NH+ 4-N 64.9% and 75.2%, NO- 3-N 92.3% and 40.1%, COD 97.5% and 90.1%, TP 94.6% and 96.2%, respectively. The removal of NH+ 4-N and NO- 3-N in the different CW units were in order of VFCW (drained) > VFCW (flooded) > HFCW and HFCW > VFCW (flooded) > VFCW (drained), respectively. When the water level in the VFCW was changed, an obvious fluctuation of the effluent NH+ 4-N and NO- 3-N concentrations was observed.

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