River and lake water environment treatment equipment and treatment method

The invention discloses river and lake water environment treatment equipment and treatment method.The river and lake water environment treatment equipment comprises a trash holding chain formed by assembling a plurality of second floating discs, connecting bent rods and fixing rods, and a plurality of ecological floating beds used for cultivating hydroponic plants are fixedly installed at the tops of the second floating discs through bolts; the two ends of the trash holding chain are fixedly connected with the river bank through positioning modules, the bottom of the second floating disc is rotationally sleeved with a first floating disc for driving floating objects through water flow, and a blockage removing component used for preventing the floating objects from being wound around the first floating disc is installed on the fixing rod. According to the device, the trash holding chain formed by connecting the floating discs, the impeller and the ecological floating bed is installed on the river channel, the