sfw是什么意思

The removal efficiencies of TN and TP of the constructed wetlands were above 50% for both VFW and SFW with HLR at 0.8 m~ 3/ ( m~ 2 · h), which is the best option.

对于五里湖水体，适宜的进水负荷为0.8m3/（m2·d）左右，此时垂直流、潜流人工湿地的TN和TP的去除效率均在50%以上。

With hydraulic load increasing, the maximum TP removal rate decline in SFW constructed wetlands is water onion, the maximum TN removal rate decline is purple leaf canna.

水力负荷增加，表流式人工湿地对总磷的去除率降低值最大的是水葱，紫叶美人蕉对总氮去除率降低值最大。

TN removal rate reduce of water onion in SFW the value difference is the largest.

潜流式水葱总氮的去除率与表流式的降低值的差值最大。