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[1]HUO Zhang-li,ZHU Guang-long,ZHANG Jiang-ting,et al.Remediation Function of Simulated Artificial Wetland Plants to Water Eutrophication[J].Research of Soil and Water Conservation,2014,21(05):267-271.

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Remediation Function of Simulated Artificial Wetland Plants to Water Eutrophication

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 05 Page number: 267-271 Column: Public date: 2014-10-28

Title:: Remediation Function of Simulated Artificial Wetland Plants to Water Eutrophication

Author(s):: HUO Zhang-li¹, ZHU Guang-long¹, ZHANG Jiang-ting², WEI Xue-zhi¹; 1. College of Life Science, Shanxi Normal University, Linfen, Shanxi 041004, China;
2. Department of Water Conservancy of Shanxi Province, Taiyuan 030000, China

Keywords:: constructed wetlands; eutrophication; hygrophyte; uptake efficiency

CLC:: X52

DOI:: -

Abstract:: Four types of hygrophyte including Phragmites australis, Scirpus triqueter, Mentha haplocalyx and Oenanthe javanica were planted in simulated artificial wetland that was constructed with river sand and eutrophic water to study the removal efficiency of total nitrogen(TN), total phosphorus(TP), ammonia nitrogen(NH₄⁺-N) and chemical oxygen demand(COD) in the water. Result showed that four kinds of plants had significant purifying effect to different concentration of eutrophic water than CK(P < 0.01). With respect to TP uptake, the highest uptake efficiency was 89.30% by Phragmites australis under mild treatment; but under moderate treatment, Scirpus triqueter had the highest uptake efficiency that was 74.96%; there was no significant difference uptake TP under severe treatment among all of the plants. With respect to TN uptake, under mild and moderate treatment, the Phragmites australis had the highest removal efficiency, which was 86.76% and 73.27% respectively. However, the highest uptake efficiency was 51.80% by Scirpus triqueter under severe treatment. With respect to NH₄⁺-N uptake, there was no significant difference to uptake NH₄⁺-N under mild treatment among all of the plants, whereas the highest uptake efficiency was Mentha haplocalyx under moderate treatment, and 58.30% by Oenanthe javanica under severe treatment. With respect to COD uptake, the Scirpus triqueter had the highest uptake efficiency in all treatments, the uptake efficiency was 77.57%,74.42% and 62.89% under mild, moderate, and severe treatment, respectively. So this study suggests that Phragmites australis and Scirpus triqueter are superior to sewage treatment in the constructed wetland.

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