水生植物对污染物的清除及其应用（Removal of pollutants from aquatic plants and their application）.docVIP

水生植物对污染物的清除及其应用（Removal of pollutants from aquatic plants and their application） The removal and application of pollutants by aquatic plants Human activities will cause large amounts of industry, agriculture and domestic waste to be discharged into the water, which will pollute the water. Water pollution can be divided into three categories: chemical pollution, physical pollution and biological pollution according to the difference of pollution impurities, basically chemical pollution. Specific pollution impurities are inorganic pollutants, inorganic toxic substances, organic toxic substances, plant nutrients and so on. As for the removal of these pollutants, aquatic plants play a very important role. A plant group whose physiology depends on the water environment and at least part of the reproductive cycle occurs in water or water. Aquatic plants can be divided into four categories: emergent plants, submerged plants, floating leaved plants and floating plants. Large aquatic plants are all taxa of aquatic plants except small algae. Aquatic plants are important components and primary producers of aquatic ecosystems. They play important roles in regulating the circulation and transmission of substances and energy in ecosystems. The utility model can also fix the suspended substance in water, and can act as a potential detoxification agent. The role of aquatic plants in the accumulation, metabolism and fate of environmental chemicals can not be ignored. Using aquatic plants to monitor aquatic pollution, pollutant ecotoxicological assessment and biological accumulation, into the food chain after modification and transport, has very important significance for [1] plant ecological protection and animal health. 1 removal of pollutants by aquatic plants 1.1 removal of nitrogen and phosphorus by aquatic plants Lake eutrophication has become a worldwide environmental problem. The enrichment of nitrogen and phosphorus by aquatic macrophytes is one of the effective ways to cont