An ecological restoration method for in-situ stabilization of heavily polluted river sludge

Abstract

Abstract The utility model relates to an ecological restoration device for in situ stabilization of heavily polluted floating sludge in river bed, comprising a three-dimensional planting web of natural plant-fiber and a plurality of pioneer aquatic plants, wherein the three-dimensional planting web of natural plant-fiber is fixedly connected to the surface of a floating sludge layer in the river bed, and the surface and internal side of the three-dimensional planting web of natural plant-fiber are coated with a modified layer formed from natural high-molecule material with high viscosity; inside said three-dimensional planting web of natural plant-fiber is filled with turf, and said pioneer aquatic plants are planted in meshes of the three-dimensional planting web of natural plant-fiber. The utility model provides in situ ecological management of floating sludge in river, which greatly reduces cost, has a relatively simple technical process, and strong operability of engineering implementation and is easy to spread compared to dredging of bottom sludge in the river bed. Ill *1 * ~ * * * * tt " 3* * ~<r B ttt q j 'N N a I $\ \~' a * * a tZ. t~ *c,,$ 0 "~#v ( *~~-<> :~v *~' ~ 'I * '~ Nj * 4) 'N-' -. ~1W: ~ 'X. '2 1 N 1 ~' "' - - -**~'~~' ~*'~" a -t t,~ 1~ &r N ~ ik / ~ '~ \' A

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to the in-situ control and ecological treatment of heavily polluted floating mud in river courses and estuary areas, in particular to the in-situ control of black and smelly floating mud in river courses when dredging is not possible in small riverside rivers in rural areas or in urban rivers. Comprehensive ecological restoration method. Background technique [0002] The floating mud on the surface of the river channel has high moisture content, high organic matter content, low density, and is easily suspended under the action of water dynamic disturbance, water bioturbation or water flow impact, which not only causes water turbidity, but more importantly, causes a large amount of pollutants in the sediment to be released again increase the water pollution load. At present, the main method is to dredge the bottom mud for environmental protection, transfer it to land ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the existing technologies are aimed at curing the silt piled up on the bank after dredging, such as the patented high water content silt curing agent (CN 104086070 A), the silt curing agent and the silt curing process using the silt curing agent (201410254633.5) the silt curing agent and Its manufacturing method (201310710591.7), a marine dredging and beach mud solidification material (201110174860.3), etc. are mainly aimed at the disposal technology of floating mud after dredging, and the in-situ underwater solidification and in-situ pollution control technology of black and odorous floating mud on the surface of water bodies extremely unreported

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