| With the rapid development of the industry and agriculture in China,the human damage increases sharply in rivers,especially the large amount of waste is discharged directly into the river ecological environment,the pollution degree of river water quality is becoming more and more general.The serious pollution of river water will pose a critical threat to the quality of human life and economic in social development.Therefore,it is of great importance to accelerate the comprehensive treatment of water pollution in Fuyang river,and purify the water quality quickly and effectively.In this paper,the natural and social conditions of the river were investigated,and then according to the domestic and international river water purification and ecological restoration technology,the purification technology in Fuyang river was put forward combined with the analysis of pollution sources.The main research contents and conclusions are as follows:1)In order to purify the water in Fuyang river quickly,this paper studied the effect of biofilm technology on the removal of COD,TN and TP.The results show that the effect of biofilm technology on the removal of COD,TN and TP in river water is expected.The effect of biofilm technology on the water quality of Fuyang river is obvious,especially for the removal of TN and COD in river water.2)This paper studies the reeds aquatic plant communities and typha communities along the river to the changing law of pollutant concentration in water and two types of aquatic plant community in vivo accumulation of pollutants as along the change rule.The results show that the reed community and cattail of water pollutant reduction effect is bigger,it can purify Fufang river water body effectively.3)Meanwhile the ecological floating island water hyacinth and canna the ecological floating island under the different levels of pollution in Fufang river water body and the change rule of TN,TP removal effect under different hydraulic retention time,under the same pollution water in the river of TN and TP removal efficiency were also studied.The results show that under the different levels of pollution,water hyacinth ecological floating island and canna the ecological floating island on the removal rate of TN and TP in Fuyang river water body with the increase of TN and TP concentration in river water and increase,water hyacinth ecological floating island ofriver water purification effect is better than that of canna ecological floating island.Under different HRT,the ecological floating island water hyacinth and canna the ecological floating island on the removal rate of TN and TP in Fuyang river water body increases as the growth of the hydraulic retention time,overall,water hyacinth ecological floating island of river water purification effect is better. |