Sludge landfill sludge water and rainwater intercepting well

Abstract

The utility model discloses a sludge water and rainwater intercepting well for a sludge landfill, belongs to the field of waste water and rainwater collecting devices, and solves the problem that the water content of sludge for landfill is higher. A water seepage barrel is arranged in the reinforcement cage, a gravel layer is arranged between the reinforcement cage and the water seepage barrel, a plurality of perforated water collecting pipes are arranged in the gravel layer, the ends of the perforated water collecting pipes lead to the inside of the water seepage barrel, and filter cloth wraps the outer walls of the perforated water collecting pipes. The structure design is simple and clear, the catch basin is formed by the reinforcement cage, the gravel layer and the water seepage barrel, sludge water and rainwater are collected through the perforated water collecting pipe and then guided into the water seepage barrel, and meanwhile the problems of high water content of sludge and rainwater collection are solved. The device is relatively simple and convenient to process, manufacture and install, does not need complex technology and large-scale professional equipment in actual construction, is convenient to popularize and apply in sludge landfills with different scales, and has good practicability and economical efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of wastewater and rainwater collection device, concretely relates to a sludge landfill site sludge water and rainwater intercepting well. BACKGROUND

[0002] At present, more than 60% of sludge is disposed through landfill, and this method has many disadvantages although it is simple, low in cost and high in efficiency. Before the implementation of the relevant specification standards of sludge disposal in sewage treatment plants, due to the factors such as dehydration difficulty and cost, the moisture content of the sludge entering the landfill is generally high. Because the exhaust and drainage of the landfill are not smooth, the sludge is easy to block the gas and leachate collection and drainage system of the landfill, so that the landfill becomes a man-made "swamp". At the same time, the open sludge landfill site, when it rains, a large amount of rainwater infiltration will further increase the moisture content of the sludge, so that the sludge in the pit presents a flow state, and the soil shear strength is greatly reduced, which has a great adverse effect on the safety and stability of the sludge pit and the surrounding garbage heap. At the same time, the stinking water produced in the sludge pit is also easy to cause environmental pollution problems. Therefore, it is urgent to repair and treat these landfill sludge, and it is particularly important to invent a kind of intercepting well which can effectively collect the sludge water and rainwater of the sludge landfill site. SUMMARY

[0003] The utility model aims at providing a sludge landfill site sludge water and rainwater intercepting well to solve the problem of high moisture content of the sludge entering the landfill.

[0004] The technical scheme of the utility model is: a sludge landfill site sludge water and rainwater intercepting well, which comprises a steel reinforcement cage, a water seepage barrel is arranged in the steel reinforcement cage, a gravel layer is arranged between the steel reinforcement cage and the water seepage barrel, a plurality of perforated water collecting pipes are arranged in the gravel layer, the end of the perforated water collecting pipe is connected to the inside of the water seepage barrel, and filter cloth is wrapped around the outer wall of the perforated water collecting pipe.

[0005] As a further improvement of the utility model, the perforated water collecting pipes are arranged along the radial direction of the water seepage barrel.

[0006] As a further improvement of the utility model, the perforated water collecting pipes are arranged in multiple layers along the height direction of the water seepage barrel.

[0007] As a further improvement of the utility model, a sealing glue is arranged at the connection between the perforated water collecting pipe and the water seepage barrel.

[0008] As a further improvement of the utility model, a siphon pipe is arranged in the water seepage barrel, and a siphon pump is arranged on the siphon pipe.

[0009] As a further improvement of the utility model, a water level sensor is arranged in the water seepage barrel, and the water level sensor is connected with the siphon pump.

[0010] The beneficial effects of this utility model are as follows: The structural design is simple and clear. It uses a steel cage, gravel layer, and infiltration tank to form an intercepting well. Sludge discharge water and rainwater are collected through perforated collection pipes and then guided into the infiltration tank, simultaneously solving the problems of high sludge moisture content and rainwater collection. This utility model employs a siphon drainage system, ensuring the stability and continuity of drainage from the intercepting well, and features a wider water collection range and higher efficiency. The processing, manufacturing, and installation of this utility model are relatively simple. In actual construction, it does not require complex technology or large-scale professional equipment, making it easy to promote and apply in sludge landfills of different sizes, and possessing good practicality and economic benefits. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the planar structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the elevation structure of this utility model.

[0013] In the diagram: 1-reinforcing cage; 2-gravel layer; 201-perforated water collection pipe; 3-seepage bucket; 4-siphon pipe; 401-siphon pump. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings.

[0015] like Figure 1 , Figure 2 As shown, a sludge landfill drainage and rainwater interception well includes a steel cage 1, a seepage bucket 3 inside the steel cage 1, a gravel layer 2 between the steel cage 1 and the seepage bucket 3, and a plurality of perforated water collection pipes 201 inside the gravel layer 2. The ends of the perforated water collection pipes 201 lead to the inside of the seepage bucket 3, and the outer wall of the perforated water collection pipes 201 is wrapped with filter cloth.

[0016] The perforated water collection pipe 201 is arranged radially along the seepage tank 3. The perforated water collection pipe 201 has multiple layers along the height direction of the seepage tank 3.

[0017] The connection between the perforated water collection pipe 201 and the seepage bucket 3 is sealed with sealant.

[0018] The seepage tank 3 is equipped with a siphon pipe 4. A siphon pump 401 is installed on the siphon pipe 4. A water level sensor is installed inside the seepage tank 3 and is connected to the siphon pump 401.

[0019] Example 1

[0020] An area with high sludge moisture content and poor drainage was selected as the implementation site in a sludge landfill. Before installation, the area was measured and marked to determine the accurate location of the interception well.

[0021] According to the design requirements, the reinforcing cage 1 is made of steel bars with a diameter of Φ=6~8mm, which are woven into a barrel-shaped structure. The reinforcing cage 1 has a square mesh with a side length not greater than 15mm, and the barrel structure of the reinforcing cage 1 has a diameter D=2m. The reinforcing cage 1 is transported to the predetermined position of the sludge landfill site and placed vertically in the sludge layer to ensure that the reinforcing cage is installed firmly and vertically.

[0022] A water seepage barrel 3 is installed inside the reinforcing cage 1, which has a diameter D=1.5m. The position of the water seepage barrel 3 is adjusted so that it is located at the center of the reinforcing cage 1. After the installation of the water seepage barrel 3, a gravel layer 2 is laid between the water seepage barrel 3 and the reinforcing cage 1, which is filled with gravel with a particle size of d=15~20mm using a layered laying method, and each layer has a uniform thickness. A perforated water collection pipe 201 is installed in the gravel layer 2 at the same time, which has water collection holes with a diameter of 10mm on the side wall, and is wrapped with a layer of filter cloth or gauze with a hole diameter of 1mm and fixed to prevent impurities such as gravel from entering the perforated water collection pipe 201 and affecting the water collection effect. The perforated water collection pipe 201 is connected to the side wall of the water seepage barrel 3 to ensure tight connection, and the connection is sealed with sealant or other materials to prevent water leakage.

[0023] The inlet of the siphon pipe 4 is located near the bottom of the water seepage barrel to better collect the water accumulated in the water seepage barrel 3. The other end is connected to the external drainage system, and the siphon pump 401 is installed on the siphon pipe 4 to provide power for drainage. After installation, the siphon pump 401 is debugged.

[0024] Rainwater and sludge water penetrate through the gaps of the gravel layer 2 into the perforated water collection pipe 201, and the water flows into the water seepage barrel 3 through the perforated water collection pipe 201. When the water level in the water seepage barrel 3 reaches the set height of the water level sensor, the water level sensor sends a signal to the siphon pump 401, which starts to work. The siphon pump 401 generates suction force, causing the siphon pipe 4 to form a siphon effect, which drains the water in the water seepage barrel 3 through the siphon pipe 4 to a designated location, achieving the interception and discharge of sludge water and rainwater.

Claims

1. A sludge landfill site effluent and stormwater interceptor, characterised in that: The utility model provides a reinforced cage (1), the inside of reinforced cage (1) is equipped with seepage bucket (3), is equipped with gravel layer (2) between reinforced cage (1) and seepage bucket (3), is equipped with multiple perforated water collecting pipes (201) in gravel layer (2), the end of perforated water collecting pipe (201) leads to the inside of seepage bucket (3), and the outer wall of perforated water collecting pipe (201) is wrapped with filter cloth.

2. The sewage sludge landfill site effluent and rainwater intercepting well according to claim 1, characterized in that: The perforated water collecting pipe (201) is arranged along the radial direction of the seepage bucket (3).

3. The sewage sludge landfill site effluent and stormwater interceptor according to claim 2, characterized in that: The perforated water collecting pipe (201) is provided with multiple layers along the height direction of the seepage bucket (3).

4. The sewage sludge landfill site effluent and stormwater interceptor according to claim 3, characterized in that: A sealing glue is arranged at the connection between the perforated water collecting pipe (201) and the seepage bucket (3).

5. A sewage interceptor according to any one of claims 1 to 4, characterised in that: The seepage bucket (3) is provided with a siphon pipe (4), and the siphon pipe (4) is provided with a siphon pump (401).

6. The sewage sludge landfill effluent and stormwater interceptor according to claim 5, characterized in that: A water level sensor is arranged in the seepage bucket (3), and the water level sensor is connected to the siphon pump (401).

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