Landfill leachate deodorization equipment

Abstract

The utility model provides landfill leachate deodorization equipment, relates to the technical field of odor treatment, treats front-end high-concentration odor (hydrogen sulfide and the like), reduces the overall system load, and solves the problems of high drug consumption and high cost of the existing leachate deodorization equipment. The device comprises a first equipment cavity, an adsorption decomposition cavity, a chemical washing cavity, an adsorption demisting cavity and a second equipment cavity, a first filler support used for containing iron-carbon filler is horizontally arranged in the middle of the adsorption decomposition cavity, an aeration pipe is located below the first filler support, a first spraying assembly is arranged at the top in the adsorption decomposition cavity, and a second spraying assembly is arranged at the bottom in the adsorption decomposition cavity. A gas distribution pipe is arranged at the gas outlet end of the top of the adsorption and decomposition cavity and is communicated with the chemical washing cavity through a communicating gas pipe. The utility model has the beneficial effects that the load of the subsequent process is reduced, and the dosage is reduced; the filler can be repeatedly used, the service life is prolonged, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of odor treatment, in particular to the technical field of odor treatment of garbage leachate. Background Art

[0002] After anaerobic fermentation, the concentration of odor produced by landfill leachate is hundreds or even thousands of times higher than that of ordinary sewage. Common treatment processes include the following: biological method, due to the high concentration of inlet air, it is difficult to cultivate microorganisms and the treatment effect is not obvious; adsorption method, the adsorption filler is easily saturated, the filler needs to be replaced frequently and the cost is high; chemical washing consumes a large amount of drugs and produces a lot of wastewater. Utility Model Content

[0003] The utility model aims to treat high-concentration odor (such as hydrogen sulfide) at the front end, reduce the overall system load, and solve the problems of large drug consumption and high cost of existing leachate deodorization equipment.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A garbage leachate deodorization device, comprising a device housing, characterized in that the housing is composed of a first device chamber, an adsorption and decomposition chamber, a chemical washing chamber, an adsorption and demisting chamber, and a second device chamber;

[0006] A control cabinet and a fan are arranged in the first equipment cavity, and the inlet and outlet of the fan are respectively connected to an air inlet pipe and an air supply pipe, the air inlet pipe extends upward out of the first equipment cavity, and the air supply pipe extends into the adsorption and decomposition cavity and is connected to an aeration pipe;

[0007] A first filler support for placing iron-carbon fillers is horizontally arranged in the middle of the adsorption and decomposition chamber, the aeration pipe is located below the first filler support, a first spray assembly is arranged at the top of the adsorption and decomposition chamber, and an air distribution pipe is arranged at the air outlet end at the top of the adsorption and decomposition chamber, and the air distribution pipe is connected with the chemical washing chamber through a connecting air pipe;

[0008] A second filler support for placing a washing filler is horizontally arranged in the middle of the chemical washing chamber, the communicating air pipe extends to the bottom of the second filler support, a second spray assembly is arranged at the top of the chemical washing chamber, and the upper left side of the chemical washing chamber is connected with the adsorption demisting chamber;

[0009] A group of third filler brackets for placing activated carbon fillers are vertically arranged in the middle of the adsorption and demisting chamber, and an air outlet pipe is connected to the top of the left side of the adsorption and demisting chamber.

[0010] The second equipment cavity is provided with a first water tank, a second water tank, a first water pump and a second water pump. The first water tank is connected to the lower part of the adsorption and decomposition cavity through a connecting water pipe. The aeration pipe is located below the water storage layer of the adsorption and decomposition cavity. The water inlet end of the first water pump is connected to the first water tank through a water supply pipe. The water outlet end of the first water pump is connected to the first spray assembly through a water supply pipe. The second water tank is connected to the lower part of the chemical washing cavity through a connecting water pipe. The water inlet end of the second water pump is connected to the second water tank through a water supply pipe. The water outlet end of the second water pump is connected to the second spray assembly through a water supply pipe.

[0011] A further improvement is that the control cabinet includes a PLC controller and a human-machine interface touch screen.

[0012] A further improvement is that: the first filler bracket, the second filler bracket and the third filler bracket are all hollow filler brackets.

[0013] A further improvement is that a first drain pipe is connected to the bottom of the adsorption decomposition chamber.

[0014] A further improvement is that: a first drain valve is connected to the first drain pipe.

[0015] A further improvement is that a second drain pipe is connected to the bottom of the chemical washing chamber.

[0016] A further improvement is that: a second drain valve is connected to the second drain pipe.

[0017] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0018] An adsorption and decomposition chamber is provided to reduce the high concentration of odorous gases, lighten the load for subsequent processes, reduce the amount of drugs used, and save costs; a chemical washing chamber is provided to neutralize and react using the principle of chemical reaction to reduce the odor concentration to a large extent, thereby saving the investment in drugs; an adsorption and demisting chamber can prevent water vapor from being carried away by the wind and remove methane; it solves the problem of unstable treatment of high-concentration odor and high drug consumption;

[0019] The air inlet of the adsorption and decomposition chamber is distributed by aeration in water. The odor is directly blown in and aerated to form tiny bubbles, which greatly increases the contact area between the odor and water and improves the effect and efficiency of removing high-concentration NH3 in the odor. Through the aeration method combined with the air distribution pipe, the gas can evenly enter the packing layer after it exits the water surface, basically achieving no short-flow phenomenon. At the same time, the packing of the spray component can be reused to extend the service life and save costs. It solves the problem of frequent replacement of packing due to easy adsorption saturation in traditional adsorption methods. The equipment is integrated, and each process section is compactly arranged, occupying a small area. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the plane structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the elevation structure of the utility model.

[0023] Explanation of the accompanying drawings: first equipment chamber 1, adsorption and decomposition chamber 2, first filler bracket 21, air distribution pipe 22, first exhaust pipe 23, chemical washing chamber 3, second filler bracket 31, connecting air pipe 32, second exhaust pipe 33, adsorption and demisting chamber 4, third filler bracket 41, air outlet pipe 42, second equipment chamber 5, first water tank 51, second water tank 52, first water pump 53, second water pump 54, connecting water pipe 55, water supply pipe 56, fan 6, air inlet pipe 61, air supply pipe 62, aeration pipe 63, first spray assembly 7, second spray assembly 8, control cabinet 9. DETAILED DESCRIPTION

[0024] See also Figure 1-Figure 2 As shown, the technical solution adopted in this specific embodiment is: a garbage leachate deodorization device, including a device box, the box is composed of a first device chamber 1, an adsorption and decomposition chamber 2, a chemical washing chamber 3, an adsorption and demisting chamber 4, and a second device chamber 5;

[0025] The first equipment chamber 1 is provided with a control cabinet 9 and a fan 6, the inlet and outlet of the fan 6 are respectively connected with an air inlet pipe 61 and an air supply pipe 62, the air inlet pipe 61 extends upwardly out of the first equipment chamber 1, and the air supply pipe 62 extends into the adsorption decomposition chamber 2 and is connected with an aeration pipe 63;

[0026] A first filler support 21 for placing iron-carbon fillers is horizontally arranged in the middle of the adsorption and decomposition chamber 2, and the aeration pipe 63 is located below the first filler support 21. A first spray assembly 7 is arranged at the top of the adsorption and decomposition chamber 2, and an air distribution pipe 22 is arranged at the top gas outlet end of the adsorption and decomposition chamber 2. The air distribution pipe 22 is connected to the chemical washing chamber 3 through a connecting air pipe 32.

[0027] A second filler support 31 for placing a washing filler is horizontally arranged in the middle of the chemical washing chamber 3, and the communicating air pipe 32 extends to the bottom of the second filler support 31. A second spray assembly 8 is arranged at the top of the chemical washing chamber 3, and the upper left side of the chemical washing chamber 3 is connected with the adsorption demisting chamber 4;

[0028] A group of third filler brackets 41 for placing activated carbon fillers are vertically arranged in the middle of the adsorption demisting chamber 4, and an air outlet pipe 42 is connected to the top of the left side of the adsorption demisting chamber 4.

[0029] The second equipment chamber 5 is provided with a first water tank 51, a second water tank 52, a first water pump 53, and a second water pump 54. The first water tank 51 is connected to the lower part of the adsorption and decomposition chamber 2 through a connecting water pipe 55. The aeration pipe 63 is located below the water storage layer of the adsorption and decomposition chamber 2. The water inlet end of the first water pump 53 is connected to the first water tank 51 through a water supply pipe 56, and the water outlet end of the first water pump 53 is connected to the first spray assembly 7 through a water supply pipe 56. The second water tank 52 is connected to the lower part of the chemical washing chamber 3 through a connecting water pipe 55, the water inlet end of the second water pump 54 is connected to the second water tank 52 through a water supply pipe 56, and the water outlet end of the second water pump 54 is connected to the second spray assembly 8 through a water supply pipe 56; wherein, the first water tank 51, the first water pump 53, and the first spray assembly 7 form a cycle, and the second water tank 52, the second water pump 54, and the second spray assembly 8 form a cycle.

[0030] Among them, water tank 1 and water tank 2 are both equipped with automatic water replenishment and automatic drainage.

[0031] Wherein, sodium hypochlorite or liquid alkali is added into the water tank 2.

[0032] Among them, the filler in the adsorption and decomposition chamber 2 adopts a new type of iron-carbon. The new type of iron-carbon filler is sintered at a high temperature of about 1300° and has the characteristics of iron-carbon integration, fusion catalyst, microporous framework alloy structure, large specific surface area, strong activity, light weight, and high current density. By utilizing the unique characteristics of the filler, it can adsorb and decompose sulfur-containing substances in odorous gases.

[0033] The washing filler in the chemical washing chamber 3 is a multi-faceted hollow ball filler made of polypropylene plastic.

[0034] The activated carbon filler in the adsorption demisting chamber 4 is bamboo charcoal, which mainly adsorbs methane and prevents water vapor from taking it away.

[0035] Wherein, the control cabinet 9 includes a PLC controller and a human-machine interface touch screen.

[0036] The first filler bracket 21 , the second filler bracket 31 and the third filler bracket 41 are all hollow filler brackets.

[0037] Wherein, a first drain pipe 23 is connected to the bottom of the adsorption decomposition chamber 2 .

[0038] The first drain pipe 23 is connected with a first drain valve. When the turbidity of the circulating liquid in the water storage layer of the adsorption and decomposition chamber 2 is too high, it needs to be partially discharged through the first drain valve and then replenished with fresh water.

[0039] The bottom of the chemical washing chamber 3 is connected to a second drain pipe 33. The sodium hypochlorite or liquid alkali solution in the chemical washing chamber 3 continuously reacts and neutralizes with the odor molecules, and after reaching saturation, it is discharged through the drain valve, and then the reagent and water source are replenished.

[0040] The second drain pipe 33 is connected to a second drain valve.

[0041] The working principle of the utility model is as follows: when in use, odor is extracted by a fan and sent to an aeration pipe through an air supply pipe. The aeration pipe is located under the water storage layer of the adsorption and decomposition chamber. The odor is directly blown into the water and aerated by the aeration pipe, so that the odor forms tiny bubbles, and the contact surface between the odor and water is increased, which serves as the first deodorization process of the equipment. At the same time, water is sprayed downward through the first spray component, and the water flows downward from the top of the first filler bracket. The odorous gas passes upward from the bottom of the first filler bracket. The unique characteristics of the new carbon filler are used to adsorb and decompose the odor. The first spray component performs continuous cyclic spraying, which, on the one hand, flushes and regenerates the new iron-carbon filler, and on the other hand, makes the water, gas and filler contact evenly, so as to achieve effective adsorption and decomposition as the second deodorization process of the equipment; then the gas is discharged from the adsorption and decomposition chamber to the chemical decomposition chamber. The gas is evenly distributed through the gas distribution pipe to reduce the short-flow phenomenon in the adsorption and decomposition chamber, while reducing the gas velocity and prolonging the gas-liquid contact time. At this time, the second spray component sprays the solution downward, spraying downward from the top of the second filler bracket. When passing through the washing filler, it is divided to form fine droplets. When the gas passes through the washing filler from the bottom of the second filler bracket upward, it is fully contacted, adsorbed and reacted with the solution. It is continuously circulated and sprayed through the second spray component, and the solution and odor molecules are continuously reacted and neutralized, which serves as the third deodorization process of the equipment; afterwards, the gas rises into the adsorption and demisting chamber, passes through the third filler bracket and the bamboo charcoal therein, which is a kind of activated carbon and mainly absorbs methane and prevents water vapor from taking it away, which serves as the fourth deodorization process of the equipment; afterwards, the deodorized gas is discharged through the outlet pipe.

[0042] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. A landfill leachate deodorization device, comprising a device housing, characterized in that: The box body is composed of a first equipment chamber, an adsorption and decomposition chamber, a chemical washing chamber, an adsorption and demisting chamber, and a second equipment chamber; A control cabinet and a fan are arranged in the first equipment cavity, and the inlet and outlet of the fan are respectively connected to an air inlet pipe and an air supply pipe, the air inlet pipe extends upward out of the first equipment cavity, and the air supply pipe extends into the adsorption and decomposition cavity and is connected to an aeration pipe; A first filler support for placing iron-carbon fillers is horizontally arranged in the middle of the adsorption and decomposition chamber, the aeration pipe is located below the first filler support, a first spray assembly is arranged at the top of the adsorption and decomposition chamber, and an air distribution pipe is arranged at the air outlet end at the top of the adsorption and decomposition chamber, and the air distribution pipe is connected with the chemical washing chamber through a connecting air pipe; A second filler support for placing a washing filler is horizontally arranged in the middle of the chemical washing chamber, the communicating air pipe extends to the bottom of the second filler support, a second spray assembly is arranged at the top of the chemical washing chamber, and the upper left side of the chemical washing chamber is connected with the adsorption demisting chamber; A group of third filler brackets for placing activated carbon fillers are vertically arranged in the middle of the adsorption and demisting chamber, and an air outlet pipe is connected to the top of the left side of the adsorption and demisting chamber; The second equipment cavity is provided with a first water tank, a second water tank, a first water pump and a second water pump. The first water tank is connected to the lower part of the adsorption and decomposition cavity through a connecting water pipe. The aeration pipe is located below the water storage layer of the adsorption and decomposition cavity. The water inlet end of the first water pump is connected to the first water tank through a water supply pipe. The water outlet end of the first water pump is connected to the first spray assembly through a water supply pipe. The second water tank is connected to the lower part of the chemical washing cavity through a connecting water pipe. The water inlet end of the second water pump is connected to the second water tank through a water supply pipe. The water outlet end of the second water pump is connected to the second spray assembly through a water supply pipe.

2. The garbage leachate deodorization equipment according to claim 1, characterized in that: The control cabinet includes a PLC controller and a human-machine interface touch screen.

3. The garbage leachate deodorization equipment according to claim 1, characterized in that: The first filler bracket, the second filler bracket and the third filler bracket are all hollow filler brackets.

4. The garbage leachate deodorization equipment according to claim 1, characterized in that: The bottom of the adsorption and decomposition chamber is connected with a first drain pipe.

5. The garbage leachate deodorizing device according to claim 4, characterized in that: The first drain pipe is connected with a first drain valve.

6. The garbage leachate deodorization equipment according to claim 1, characterized in that: The bottom of the chemical washing chamber is connected with a second drain pipe.

7. The garbage leachate deodorizing device according to claim 6, characterized in that: The second drain pipe is connected with a second drain valve.

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