| Related citation: | YANG Xu,YU Shui-li,ZHAO Yan,YAN Xiao-ju,XIU Chun-hai,WANG Dong-guang.Efficiency and mechanism of pretreatment on water supply in reservoirs of Yellow River by subsurface constructed wetlands[J].Journal of Harbin Institute Of Technology(New Series),2009,16(5):652-655.DOI:10.11916/j.issn.1005-9113.2009.05.011. |
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| Author Name | Affiliation | | YANG Xu | School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China
School of Geography Science,Harbin Normal University,Harbin 150025,China | | YU Shui-li | School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China | | ZHAO Yan | School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China | | YAN Xiao-ju | School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China | | XIU Chun-hai | School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China | | WANG Dong-guang | School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China |
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| Abstract: |
| In order to improve the source water quality of drinking water and mitigate the load of drinking water treatment plant,a pilot test was conducted with integrated horizontal flow constructed wetlands to pretreat the water supply in the reservoirs of Yellow River.Results show that under the hydraulic loading rate of 4 m3/(m2·d),the average removal rates of chemical oxygen demand (COD),total nitrogen (TN),ammonium nitrogen(NH4+-N),nitrate nitrogen (NO3--N),nitrite-nitrogen (NO2--N) and total phosphorus (TP) in the horizontal flow constructed wetlands are 49.68%,53.01%,48.48%,53.61%,62.57% and 49.56%,respectively.The study on purifying mechanism of the constructed wetlands indicates that the disposal of contamination by subsurface wetlands is the combined actions of physical chemistry,plants and microorganism. |
| Key words: constructed wetland water supply in reservoirs of Yellow River pretreatment efficiency and mechanism |
| DOI：10.11916/j.issn.1005-9113.2009.05.011 |
| Clc Number:X703 |
| Fund: |
