Ecological recycling device for riverbed bottom mud

Abstract

The invention relates to the technical field of riverbed ecology, in particular to an ecological recycling device for riverbed bottom mud. The device comprises a suspension module, a circulation module and a controller. The bottom mud is in a low dissolved oxygen state in a riverbed, so that the decomposition activity of aerobic microorganisms in the bottom mud is inconvenient, organic matter in a water body is further converted under an anaerobic condition, and the water body quality of a riverway is reduced. Therefore, a folding rod arranged in the suspension module is matched with a waterwheel plate in the circulation module to control the state conversion of a floating platform and an anchor frame when the riverbed bottom mud is circulated, the bottom mud is transferred into an aeration net, metabolism of microorganisms in the bottom mud is facilitated, organic matter in the bottom mud is decomposed, and the bottom mud is deposited in the riverbed after circulation of the bottom mud is completed, so that the chemical oxygen demand of a water body is reduced, the growth of aquatic plants at the riverbed part is promoted, and the ecological balance of the riverbed is maintained, thereby improving the operation effect of the ecological recycling device for the riverbed bottom mud.

Description

technical field [0001] The invention relates to the technical field of riverbed ecology, in particular to an ecological recycling device for riverbed bottom mud. Background technique [0002] River bed sediment is usually a mixture of clay, silt, organic matter and various minerals. It is formed by depositing at the bottom of the water body after long-term physical, chemical and biological actions and water body transportation. When the water area is polluted, some pollutants in the water can be It is stored in the sediment through sedimentation or particulate matter adsorption, and is re-released under appropriate conditions to become a secondary pollution source. This pollution is called sediment pollution. Suspended solids, dissolved substances, sediment and aquatic organisms in river water and their composition The interaction between the parts will have a corresponding degree of influence on the water quality. [0003] At present, the bottom mud of the river bed is dir...

AI Technical Summary

Problems solved by technology

The middle part of the lifting cross arm is provided with a lifting strut, and the lower part of the lifting strut is provided with a river mud collection tube. The hose, the mud suction hose is connected to the sludge conveying pipe, and the sludge conveying pipe is connected to the sludge mixing tank. The upper part of the sludge mixing tank is equipped with a mud pump, and the mud discharge end of the mud pump is connected to a mud sprinkler pipe. Inside the sludge mixing tank There is a stirring structure, which is connected to the propulsion and driving structure of the hull itself through a clutch; this technical solution scrapes and absorbs the sediment and silt on the riverbed of the river to the hull, and then sprinkles it back to the upper layer of the river after stirring , evenly adsorb and spray the sludge and sewage from the anaerobic layer at the bottom, and convert them into nutrient sources for phytoplankton and zooplankton, which greatly reduces the cost of water quality ecological restoration, and also achieves the effect of water ecological self-repair; but this scheme The hull equipment used in the above is not convenient to use in small river channels, and its absorption of river mud at the bottom of the river bed will damage the ecological stability of the river bed, and it is difficult to achieve the effect of ecological balance at the bottom of the river bed

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