【作者】 孙勇； 李文哲； 杨旭；

【Author】 Sun Yong1,Li Wenzhe1,※,Yang Xu2 (1. School of Engineer Northeast Agricultural University,Harbin 150030, China ; 2.School of Geography,Harbin Normal University,Harbin 150025, China)

【机构】 东北农业大学工程学院； 哈尔滨师范大学地理科学学院；

【摘要】 采用潜流人工湿地对某牛场废水进行处理,以提高牛场出水水质,减轻环境污染。试验结果表明:该系统的处理效果良好,在1m3/(m2·d)的水力负荷条件下,潜流人工湿地对COD、TN、NH4+-N、TP的平均去除率均分别为69%,57%,51%、53.61%和56%。通过对湿地的净化机理研究表明:人工湿地对污染物的处理机理是物理、化学和生物及其协同作用。而且季节变化对湿地系统去除效率影响分析表明:夏季去除效果最佳,冬季去除效果最差。更多还原

【Abstract】 In order to mitigate environmental pollution and improve water quality of cow farm wastewater. The con- structed Wetland was applied to treat cows farm wastewater. The results show that the treatment effect of the system is favorable. under hydraulic loading rate 1 m3/m2·d, the average removal rates of chemical oxygen demand(COD), total nitrogen(TN), ammoniacal nitrogen(NH4+-N) and Total phosphorus (TP) in the horizontal flow constructed wetland were 69%,57%,51%、53.61% and 56%,respectively. he study on purifying mechanism of the constructed wetland indicates that the theory of disposal to contamination by subsurface wetland is the combined actions of physical chemi- stry,plants and microorganism. The contamination removal efficiency was compared according to seasonal change the removal efficiency of the system in summer was the highest,spring was higher than autumn and winter is the worst.更多还原