【摘要】 采用植生混凝土河道护坡模拟装置,分别在植生混凝土砌块上种植百喜草、紫花苜蓿、白三叶、早熟禾、黑麦草、红三叶、狗牙根等7种植物,考察不同植生混凝土对污染河水的净化效果。结果表明,黑麦草混凝土砌块的净化效果最好,对COD、NH4+-N、TN、TP和浊度的去除率分别为59.4%、84.2%、38.9%、95.1%和71.0%;而空白植生混凝土对污染河水也有一定的净化作用,对COD、NH4+-N、TN、TP和浊度的去除率分别为35.4%、52.5%、23.2%、68.9%和61.2%。更多还原

【Abstract】 The effect of simulated concrete embankment on water purification was studied in seven kinds of planting concrete blocks with different slope-protecting plants(Paspalum notatum,Medicago sativa L.,Trifolium repens,Poa pratensis L.,Lolium perenne L.,Trifolium pratense,Cynodon dactylon L.).The main object was to investigate the water purification effect of the planting concrete,which was a new type of embankment material.The results showed that the planting concrete blocks with Lolium perenne L.had the best performance,and the removal rates of COD,NH+4-N,TN,TP and turbidity were 59.4%,84.2%,38.9%,95.1% and 71.0% respectively.Blank planting concrete also had good purification effect,and the removal rates of COD,NH+4-N,TN,TP and turbidity were 35.4%,52.5%,23.2%,68.9% and 61.2% respectively.更多还原