Role of root surface iron plaque in phosphorous removal from wastewater by wetland plants
The P removal efficiency with two levels of P in inflow by two lab-scale wetland systems with and without iron plaque on Typhaangustifolia plant roots and the mechanism of P removal in sewage by iron plaque were studied through the P contents in the iron plaque, the plant roots and shoots. The resul...
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Zhejiang University Press
2011-03-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
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| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2011.02.016 |
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| author | LIU Jing CHEN Xin LUO An-cheng WANG Shan-shan JU Wei-wei |
| author_facet | LIU Jing CHEN Xin LUO An-cheng WANG Shan-shan JU Wei-wei |
| author_sort | LIU Jing |
| collection | DOAJ |
| description | The P removal efficiency with two levels of P in inflow by two lab-scale wetland systems with and without iron plaque on Typhaangustifolia plant roots and the mechanism of P removal in sewage by iron plaque were studied through the P contents in the iron plaque, the plant roots and shoots. The results showed that with the lower P level, the mean removal efficiency of P were 85% and 55% with and without iron plaque, respectively, and with the higher P level, the removal efficiency of P were 76% and 1.7% during the first 12 days of the system application, respectively. The removal efficiency of P in the system with iron plaque was higher than the system without iron plaque. The P content on iron plaque was lower after the experiment, comparing the beginning of the experiment. The decrement of P adsorbed on the iron plaque was 51%, 55% and 23%, 27% in the direction of water flow when the inflow was treated with low and high level of P, respectively. Simultaneously, the amount of P accumulated in the plant roots and shoots was more than that of the beginning stage, in the direction of water flow which increased by 31%, 16% and 28%, 25% in the plant roots, respectively, and in plant shoots increased by 65%, 65% and 73%, 73%, respectively, with low and high level of P inflow. The accumulated amount of P absorbed in the plant roots and shoots were increased by iron plaque. The results suggest that the iron plaque on root surface of the wetland plant plays an important role in accelerating P uptake efficiency by the plants and P removal efficiency in the wastewater. |
| format | Article |
| id | doaj-art-c519178c21284d808d7e155460f01d2b |
| institution | DOAJ |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2011-03-01 |
| publisher | Zhejiang University Press |
| record_format | Article |
| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-c519178c21284d808d7e155460f01d2b2025-08-20T02:54:53ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552011-03-013722423010.3785/j.issn.1008-9209.2011.02.01610089209Role of root surface iron plaque in phosphorous removal from wastewater by wetland plantsLIU JingCHEN XinLUO An-chengWANG Shan-shanJU Wei-weiThe P removal efficiency with two levels of P in inflow by two lab-scale wetland systems with and without iron plaque on Typhaangustifolia plant roots and the mechanism of P removal in sewage by iron plaque were studied through the P contents in the iron plaque, the plant roots and shoots. The results showed that with the lower P level, the mean removal efficiency of P were 85% and 55% with and without iron plaque, respectively, and with the higher P level, the removal efficiency of P were 76% and 1.7% during the first 12 days of the system application, respectively. The removal efficiency of P in the system with iron plaque was higher than the system without iron plaque. The P content on iron plaque was lower after the experiment, comparing the beginning of the experiment. The decrement of P adsorbed on the iron plaque was 51%, 55% and 23%, 27% in the direction of water flow when the inflow was treated with low and high level of P, respectively. Simultaneously, the amount of P accumulated in the plant roots and shoots was more than that of the beginning stage, in the direction of water flow which increased by 31%, 16% and 28%, 25% in the plant roots, respectively, and in plant shoots increased by 65%, 65% and 73%, 73%, respectively, with low and high level of P inflow. The accumulated amount of P absorbed in the plant roots and shoots were increased by iron plaque. The results suggest that the iron plaque on root surface of the wetland plant plays an important role in accelerating P uptake efficiency by the plants and P removal efficiency in the wastewater.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2011.02.016wetland plantsiron plaquephosphorous removalphosphorous uptake |
| spellingShingle | LIU Jing CHEN Xin LUO An-cheng WANG Shan-shan JU Wei-wei Role of root surface iron plaque in phosphorous removal from wastewater by wetland plants 浙江大学学报. 农业与生命科学版 wetland plants iron plaque phosphorous removal phosphorous uptake |
| title | Role of root surface iron plaque in phosphorous removal from wastewater by wetland plants |
| title_full | Role of root surface iron plaque in phosphorous removal from wastewater by wetland plants |
| title_fullStr | Role of root surface iron plaque in phosphorous removal from wastewater by wetland plants |
| title_full_unstemmed | Role of root surface iron plaque in phosphorous removal from wastewater by wetland plants |
| title_short | Role of root surface iron plaque in phosphorous removal from wastewater by wetland plants |
| title_sort | role of root surface iron plaque in phosphorous removal from wastewater by wetland plants |
| topic | wetland plants iron plaque phosphorous removal phosphorous uptake |
| url | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2011.02.016 |
| work_keys_str_mv | AT liujing roleofrootsurfaceironplaqueinphosphorousremovalfromwastewaterbywetlandplants AT chenxin roleofrootsurfaceironplaqueinphosphorousremovalfromwastewaterbywetlandplants AT luoancheng roleofrootsurfaceironplaqueinphosphorousremovalfromwastewaterbywetlandplants AT wangshanshan roleofrootsurfaceironplaqueinphosphorousremovalfromwastewaterbywetlandplants AT juweiwei roleofrootsurfaceironplaqueinphosphorousremovalfromwastewaterbywetlandplants |