Abstract: In order to find out the suitable artificial plants in the ecological restoration of the malodorous river, four kinds of artificial plants commonly used in engineering were compared. The results of experiment indicated that, string artificial plants and stereoscopic elastic filler showed a faster biofilm generation speed. At the same time, they also showed strong ability to deal with TN, TP, NH₄⁺-N and COD_Mn. In the pilot experiment, stereoscopic elastic filler combined with the ecological floating island and the aeration technology showed a good treatment effect. Comprehensive price factor, it is recommended to use a small amount of use in the case of priority to the use of string artificial plants, in the case of large use, can use stereoscopic elastic filler or combination of the two kinds artificial plants.

Key words: malodorous river, ecological restoration, artificial plants, biofilm, treatment effect