【摘要】 采用两级逆向垂直潜流人工湿地去除污水中的营养物质.一级人工湿地以连续流方式进水,NH4-N平均去除率为30%,TP平均去除率为62%,硝化和反硝化作用不明显.二级人工湿地中,NH4-N平均去除率为98.6%,TP去除率为100%;硝酸盐氮平均为19.5mg/L.二级人工湿地进行的是硝化过程,而少有反硝化过程.更多还原

【Abstract】 This research applied two-stage inverse vertical subsurface flow constructed wetlands to removal nutrients in wastewater.The first stage CW was fed continuously,averaged NH₄-N and TP removal rates were 30% and 62%,individually,no obvious nitrification and denitrification.In the second stage CW,averaged NH₄-N and TP removal rates were 98.6% and 100%,individually;NO₃-N concentration averaged 19.5mg/L,no significant denitrification.更多还原