Efficiency Analysis And Application Of Artificial Biological Floating Bed Technology In Lake Eutrophication Control

Water eutrophication is one of the most serious water environmental problems in the world.Water eutrophication not only causes serious danger to the ecological environment,but also causes certain economic losses.Water eutrophication makes the standard rate of water quality low and affects seriously the safety of drinking water.Restoring the abundance of aquatic plants and establishing a healthy water ecosystem are important means for the remediation of polluted water environment.Therefore,the article constructs an artificial biological floating bed system to repair eutrophic water.Firstly,the ecological floating island system mainly depends on the adsorption and absorption of plants,the degradation of rhizosphere microorganisms and the physical action of water itself,and chieves the aim of purifying water quality.It can select artificial biological floating bed plants of Allium,cabbage and jade belt grass,and carry out the initial culture of plants by hydroponically cultivating ecological floating island plants in indoor self-made eutrophic water body.The plants will be cultured to about 20 cm.After selecting the dominant ecological floating island system,it is applied to the outdoor eutrophication demonstration area near Wuliangsuhai.The effect of series use of ecological floating islands is used to study its effect on water purification.Secondly,floating bed plants can grow in water and grow well.Through photosynthesis,they absorb nutrients such as N and P in water for metabolism,increase plant biomass,and we can analyze the growth rate of artificial floating bed plants.After more than three months of experiments,we found that the artificial biological floating bed can effectively remove pollutants such as TN,TP,COD_CRin eutrophic waters,and compared with single floating bed plants,the artificial floating bed plants can effectively remove pollutants such as TN,TP,CODcr and so on,the purification effect of mixed floating bed plants is more remarkable.Finally,we study that plant harvesting will not have a destructive impact on the comprehensive water purification effect.After two harvests,the water purification efficiency of the floating bed system has been significantly improved,which shows that it is desirable to adopt a reasonable harvesting method.During harvesting,special attention should be paid to the preservation of new roots and buds so as to minimize the damage to the plant roots and restore the water purification efficiency of the floating bed system.Through this study,we can provide a new solution for the ecological control of wetland pollution,and provide effective technical guidance and reference for the implementation of wetland pollution control project in Wuliangsuhai.Artificial biological floating bed technology has strong competitiveness,can effectively use plant resources,reduce the emission of pollutants,and has high economic benefits,and easy to maintain and manage.