Effect of Wetland plants growth characteristics on Purifying Wastewater in Constructed Wetland
Phragmites australis and Typha angustifolia were wetland plants widely used in constructed wetlands to purify wastewater, which were studied to investigate the effects of their growth characteristics on purifying wastewater. Results showed that the leaf photosynthetic rate, transpiration rate and SPAD value of wetland plants were different. The leafphotosynthetic rate, transpiration rate, and SPAD value of T. angustifolia were significantly higher than those of P. australis (P <0.05). The evapotranspiration loss was also significantly higher in T. angustifoliatreatment than in P. australis treatment(P<0.05). The removal efficiency of CODMn, NH4 +-N, NO3 --N, TN and TP were high in T. angustifolia treatment than in P.australis treatment, and the removal efficiency of CODMn, NH4 +-N and TN were significantly different between T.angustifolia treatment and P. australis treatment(P<0.05).Wetland plants with higher photosynthetic rate,transpiration rate and SPAD value have the higher removal of efficiency of CODMn, NH4 +-N and TN.
constructed wetlands purifying capacity wetland plants growth characteristics
Defu Xu Yingxue Li Xiaoli Zhao Hua Fang
Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control,Nanjing University of Information Science & Technology,Nanjing 210044,China
国际会议
The 5th International Congress on Mathematical Biology(第五届国际生物数学大会 ICMB 2011)
南京
英文
1126-1130
2011-06-01（万方平台首次上网日期，不代表论文的发表时间）