Title: Effect of Several Herbaceous Plants on Purification of Sewage
Abstract: The purification effect of Medicago sativa,Trifolium repens,Lolium perenne,Festuca arundinacea and Poa pratensis on TN,TP and COD in sewage was studied by using potting simulation method based on vermiculite to provide the theoretical basis for ecological construction and non-point source pollution management of riverside buffer zone along Liaohe River Basin.The results showed that 5tested herbaceous plants all have good purification effect on TN,TP and COD in sewage,and the purification rate show a declining trend with elongation of their growth time.The TN,TP and COD purification effect of 5tested herbaceous plants is Medicago sativa Trifolium repens.Festuca arundinacea Lolium perennePoa pratensis,Trifolium repens Festuca arundinacea Lolium perenne Medicago sativaPoa pratensis.and Festuca arundinacea Trifolium repens Lolium perenne Medicago sativaPoa pratensis respectively.The TN purification rate of Medicago sativa and Trifolium repens can reach 26.80% and 24.99 after 35drespectively.The TP purification rate of Trifolium repens and Festuca arundinaceais up to 66.28% and 65.48% after 35 dseparately.The COD purification rate of Festuca arundinacea and Trifolium repens is 36.85% and 34.46% after 35 d respectively.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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