【摘要】 为研究大连地区复合人工湿地对污染河水的净化效果,在大连复州河河滩上构建了4种不同组合的复合人工湿地。一年多的试验结果表明,组合1对COD、NH+4-N、TP的去除效果优于其他组合,对应平均去除率分别为46%、35%、28%;4种组合对TN去除效率差别不大,平均去除率为18%~20%;温度与TN和NH+4-N去除率之间呈正相关,其变化对两者去除效果影响较大;水力负荷对人工湿地的COD、NH+4-N、TP去除效果有较大影响,适当的水力负荷能保证人工湿地系统好的处理效果。更多还原

【Abstract】 In order to study the purification effect of composite artificial wetland on polluted river water in Dalian area,four kinds of different composite artificial wetlands were constructed on the river bank of Fuzhou River in Dalian.More than one year,the experimental results show that COD,NH+4-N and TP removal effects of the first combination is stronger than the other combinations,and the corresponding average removal rates were 46%,35%,28%,respectively.The removal efficiency of TN has no significant difference between four kinds of combinations and the average removal rate was 18%-20%.There was a positive correlation between temperature and TN and NH+4-N removal rate.Temperature variation has great influence on the removal effects of TN and NH+4-N.Hydraulic load affects the removal effects of COD,NH+4-N and TP greatly,and an appropriate hydraulic load can guarantee the good effect of constructed wetlands.更多还原