CN-224212480-U - Landfill leachate treatment device

CN224212480UCN 224212480 UCN224212480 UCN 224212480UCN-224212480-U

Abstract

A garbage leachate treatment device relates to the technical field of sewage treatment devices and comprises a sedimentation tank, wherein the sedimentation tank is divided into a buffer area, a stirring area, a sedimentation area and a clear water area through a partition board, and a through hole is formed in the bottom of the partition board. The stirring device is arranged in the stirring area. The first overflow pipe is arranged between the stirring area and the sedimentation area, and the second overflow pipe is arranged between the sedimentation area and the clear water area. And an inclined tube sedimentation component is arranged in the sedimentation zone. The flushing device is arranged on the inclined tube and is used for flushing the sedimentation wall of the inclined tube, so that the problem of sludge accumulation is solved. The sedimentation tanks can be arranged in parallel, so that the treatment efficiency is improved, and the sedimentation tank has a standby function. The cooperation of immersible pump and three-way valve can draw water when washing and wash and clear up mud. The bottom of the sedimentation zone is in a conical structure and is provided with a spiral feeder. The utility model can realize high-efficiency precipitation operation, improve the treatment efficiency of the landfill leachate and ensure the continuity of the treatment process.

Inventors

Rong tiantian
SONG ZIJUAN
DING CHAOYANG
ZANG JIAYU
HU JINGSONG

Assignees

河南永迈环保科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250607

Claims (6)

1. A landfill leachate treatment device, comprising: The sedimentation tank (1) is divided into a buffer area (1-1), a stirring area (1-2), a sedimentation area (1-3) and a clear water area (1-4) by a partition board area in the sedimentation tank (1), and a through hole is arranged at the bottom of the partition board between the buffer area (1-1) and the stirring area (1-2); The stirring device (2) is arranged in the stirring zone (1-2); the first overflow pipe (3) is arranged between the stirring area (1-2) and the sedimentation area (1-3), a water inlet of the first overflow pipe (3) is positioned at the top of the stirring area (1-2), and a water outlet of the first overflow pipe is positioned at the bottom of the sedimentation area (1-3); The inclined tube sedimentation assembly (4) is arranged in the sedimentation zone (1-3) and comprises a plurality of inclined tubes arranged in an array; The flushing devices (5) are arranged in a plurality of mode, and the flushing devices (5) are respectively arranged on the inclined pipes and used for flushing the sedimentation walls of the inclined pipes; The second overflow pipe (6) is arranged between the sedimentation zone (1-3) and the clear water zone (1-4), and a water inlet of the second overflow pipe (6) is positioned at the top of the sedimentation zone (1-3).
2. The landfill leachate treatment device according to claim 1, wherein: the number of the sedimentation tanks (1) is two, and the two sedimentation tanks (1) are arranged in parallel.
3. The landfill leachate treatment device according to claim 2, wherein: A submersible pump is arranged in a clear water area (1-4) of the sedimentation tank (1), and a water outlet of the submersible pump in one sedimentation tank (1) is correspondingly communicated with a flushing device (5) of the sedimentation tank (1) and a buffer area (1-1) of the other sedimentation tank (1) respectively through a first three-way valve; the water inlet of the submersible pump is correspondingly communicated with the clear water zone (1-4) and the sedimentation zone (1-3) of the sedimentation tank (1) respectively through a second three-way valve.
4. The landfill leachate treatment device according to claim 1, wherein: the flushing device (5) comprises a flushing pipe (5-1) arranged in the inclined pipe, and a plurality of flushing nozzles (5-2) facing the sedimentation wall of the inclined pipe are arranged on the pipe body of the flushing pipe (5-1) at intervals.
5. The landfill leachate treatment device according to claim 1, wherein: the bottom of the sedimentation zone (1-3) is in a conical structure, and the bottom of the sedimentation zone is provided with a spiral feeder (7).
6. The landfill leachate treatment device according to claim 1, wherein: The stirring device (2) comprises a driving motor (2-1) arranged at the top of a stirring zone (1-2) of the sedimentation tank (1), a stirring shaft (2-2) extending into the stirring zone (1-2) is arranged at the output end of the driving motor (2-1), a plurality of stirring blades (2-3) are arranged at intervals of the shaft body of the stirring shaft (2-2), and the inclination directions of two adjacent stirring blades (2-3) are opposite.

Description

Landfill leachate treatment device Technical Field The utility model relates to the technical field of sewage treatment devices, in particular to a garbage leachate treatment device. Background The landfill leachate is high-concentration organic wastewater generated by the combined action of the factors such as the water content of the garbage, leaching of precipitation, microorganism metabolism and the like in the process of storing and burying the garbage. The composite material has complex components, contains various organic matters, heavy metal ions, ammonia nitrogen, pathogens and other harmful substances, and can cause serious pollution to surrounding water, soil and ecological environment if the composite material is directly discharged without effective treatment, thereby threatening ecological balance and human health. The traditional garbage leachate treatment method mainly comprises a biological treatment method, a physicochemical treatment method, a membrane treatment method and the like. The biological treatment method utilizes the metabolism of microorganisms to decompose organic substances in the percolate, but the method is sensitive to the change of water quality and water quantity of the percolate, and has poor treatment effect on high-concentration ammonia nitrogen and partial refractory organic substances. Physical and chemical treatment methods such as coagulating sedimentation, activated carbon adsorption and the like can effectively remove part of pollutants in percolate, but often have the problems of high treatment cost, secondary pollution generation, unstable treatment effect and the like. In practical landfill leachate treatment engineering, in order to overcome the limitation of a single treatment method, a process flow of a combination of multiple methods is generally adopted. However, even so, existing processing techniques still face challenges such as processing efficiency to be improved, running costs to remain high, and equipment maintenance to be complicated. Especially in the sedimentation link, the traditional sedimentation tank structure and sedimentation mode often have difficulty in realizing high-efficient separation of sludge and clarified water, and the burden of subsequent treatment procedures is increased, and the stable operation and treatment effect of the whole treatment system are affected. Therefore, a device capable of treating the landfill leachate more efficiently and stably is developed, the precipitation process is optimized, the separation efficiency of sludge and clarified water is improved, and the device has important practical significance for improving the overall treatment level of the landfill leachate. Disclosure of utility model In order to overcome the defects in the background technology, the utility model discloses a garbage leachate treatment device. In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: a landfill leachate treatment device comprising: the sedimentation tank is divided into a buffer area, a stirring area, a sedimentation area and a clear water area by a partition board, wherein a through hole is arranged at the bottom of the partition board between the buffer area and the stirring area; the stirring device is arranged in the stirring area; The first overflow pipe is arranged between the stirring area and the sedimentation area, a water inlet of the first overflow pipe is positioned at the top of the stirring area, and a water outlet of the first overflow pipe is positioned at the bottom of the sedimentation area; The inclined tube sedimentation assembly is arranged in the sedimentation area and comprises a plurality of inclined tubes arranged in an array; the flushing devices are respectively arranged on the inclined pipes and used for flushing the sedimentation walls of the inclined pipes; the second overflow pipe is arranged between the sedimentation area and the clear water area, and a water inlet of the second overflow pipe is positioned at the top of the sedimentation area. Preferably, the number of the sedimentation tanks is two, and the two sedimentation tanks are arranged in parallel. Preferably, a submersible pump is arranged in the clear water area of the sedimentation tank, the water outlet of the submersible pump in one sedimentation tank is correspondingly communicated with the flushing device of the sedimentation tank and the buffer area of the other sedimentation tank respectively through a first three-way valve, and the water inlet of the submersible pump is correspondingly communicated with the clear water area and the sedimentation area of the sedimentation tank respectively through a second three-way valve. Preferably, the flushing device comprises a flushing pipe arranged in the inclined pipe, and a plurality of flushing nozzles facing the sedimentation wall of the inclined pipe are arranged on the pipe body of the flushing pipe at intervals. Prefera