Exhaust bin combined overwater nursery and use method

Abstract

The invention discloses an exhaust bin combined overwater nursery and a use method, and belongs to the field of purification of black and odorous water bodies. The exhaust bin combined overwater nursery is mainly used for in-situ synchronous purification and reclamation of urban bed mud. The exhaust bin combined overwater nursery comprises single overwater nurseries, combined connection members and a gas supply system, wherein each single overwater nursery comprises a mud collecting tank formed in the upper part of the single overwater nursery, a horizontal separation board at the middle of the single overwater nursery and an exhaust bin arranged at the lower part of the single overwater nursery; a retaining board at the periphery of each mud collecting tank is provided with a water overflowing port; a water communicating pipe is vertically downward embedded into each horizontal separation board; a vertical separation board is arranged in each exhaust bin; the combined connection members are positioned at the outer sides of the retaining boards of all the single overwater nurseries and are used for combining adjacent single overwater nurseries together; the gas supply system is formed by connecting a fan with gas inlet pipes of all the single overwater nurseries through a gas distribution manifold and a gas distributor. According to the exhaust bin combined overwater nursery disclosed by the invention, contaminated bed mud in the water bodies is subjected to in-situ concentration for planting grass; by taking contaminants such as ammonia nitrogen and phosphorus in the mud as fertilizer through a lawn root system, the aim of degrading is achieved and secondary reshipment pollution and treatment difficulty of the bed mud are reduced.

Description

Technical field: [0001] The invention belongs to the field of purification of black and odorous water bodies, and in particular relates to a water nursery combined with a lower gas chamber for in-situ simultaneous purification and resource utilization of urban bottom mud and its use method. Background technique: [0002] In recent years, the phenomenon of river water pollution has become more and more obvious. Most rivers have experienced extreme phenomena such as eutrophication and black and odorous water quality. The pollution problem of the bottom mud, and the dry stalks and branches and leaves of the plants in the artificial floating islands sinking in the water in autumn and winter will also accelerate the consumption of dissolved oxygen in the water body. The biogas is continuously released into the water body under the effect of uplift, which intensifies the stench and blackening of the water body. [0003] The treatment mechanism of artificial floating islands on po...

AI Technical Summary

Problems solved by technology

[0004] Nowadays, sediment dredging technology is mostly used in river channel treatment, but due to the large amount of sediment in black and odorous water bodies and high water content, the transportation and storage costs are high, and secondary pollution is easy to occur, and the sludge during the two dredging periods is gradually Problems such as accumulation of stinky, long-term foul smell, and inability to deal with them in time have become the technical bottleneck of sediment dredging. Therefore, there is a strong practical need to develop a water purification device that can collect and process black and odorous sediment in time for resource utilization.

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