Soil remediation equipment utilizing microorganisms

Abstract

The utility model discloses soil remediation equipment utilizing microorganisms, and belongs to the field of soil remediation. Comprising a rotary cultivator used for turning up soil; the microorganism cultivation tank is used for cultivating microorganisms; the feeding assembly is arranged on the rotary cultivator and used for feeding the microorganisms in the microorganism cultivation tank into soil; the flow switch is arranged on the microorganism cultivation tank, an outlet of the flow switch is connected with a feeding pipe, and the other end of the feeding pipe is connected with the feeding assembly; an inner cavity of the microorganism cultivation tank comprises a dormancy area cavity and a cultivation area cavity, the dormancy area cavity is communicated with the bottom of the cultivation area cavity through a pipeline, dormancy gas is arranged in the dormancy area, a growth lamp strip is arranged in the cultivation area, and a microbial agent inlet communicated with the cultivation area cavity is formed in the microorganism cultivation tank. The soil remediation equipment has the beneficial effect that the soil remediation equipment utilizing the microorganisms is provided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of soil remediation, in particular, to a soil remediation device using microorganisms. BACKGROUND

[0002] Petroleum components are roughly divided into aliphatic hydrocarbons, aromatic hydrocarbons, paraffin, resin and asphaltene, and some of the hydrocarbons in petroleum components have been listed as priority pollutants, which are a great threat to human health and environmental health. Petroleum hydrocarbons can diffuse in the medium and be adsorbed to the soil matrix, which has an adverse effect on the biological community and physicochemical properties of the soil. Due to the large area of oil-contaminated soil, the traditional methods of incineration and landfill are too expensive in terms of energy consumption and site cost, and chemical remediation often cannot avoid the problem of secondary pollution, while microbial remediation is concerned due to its cost-effectiveness and ecological friendliness. Soil microbial remediation technology is a remediation technology that uses indigenous microorganisms or artificially domesticated microorganisms with specific functions to reduce the activity of harmful pollutants in the soil or degrade them into harmless substances under suitable environmental conditions. Compared with chemical remediation technology and physical remediation technology, microbial remediation technology has lower application cost, less negative impact on soil fertility and metabolic activity, and can avoid the impact on human health and the environment due to the transfer of pollutants.

[0003] Bioaugmentation can be divided into biological culture method of cultivating indigenous microorganisms and inoculation method of introducing exogenous microorganisms. The biological culture method is to add nutrients and electron acceptors (such as oxygen or hydrogen peroxide, etc.) to the oil-contaminated soil at regular intervals to meet the growth needs of the original indigenous microorganisms in the soil and improve their degradation capacity of petroleum pollutants. The inoculation method is to introduce the exogenous microorganisms that are directionally selected and domesticated into the oil-contaminated soil and add the nutrients required for their growth, so as to achieve the purpose of soil remediation through the degradation of petroleum pollutants by the exogenous microorganisms.

[0004] Therefore, there is a need for a soil remediation device using microorganisms, which combines the cultivation of microorganisms with spraying and turning, combines the microorganism cultivation device with a mini-tiller, and performs small-area soil petroleum hydrocarbon pollution remediation. At the same time, it is convenient to transport and operate, and can achieve rapid response. CONTENT OF THE INVENTION

[0005] The content part of the present application is used to introduce the concept in a brief form, which will be described in detail in the specific embodiment part. The content part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0006] To solve the technical problems mentioned in the background section, some embodiments of the present application provide a soil remediation device using microorganisms, comprising: a rotary cultivator for turning up soil; a microbial cultivation tank for cultivating microorganisms; a feeding assembly arranged on the rotary cultivator for feeding the microorganisms in the microbial cultivation tank to the soil; a flow switch arranged on the microbial cultivation tank, the flow switch outlet is connected with a feeding pipe, the other end of the feeding pipe is connected with the feeding assembly; the microbial cultivation tank comprises: a dormant zone cavity and a cultivation zone cavity, the bottom of the dormant zone cavity and the cultivation zone cavity are communicated by a pipeline, the dormant zone is provided with a dormant gas, the cultivation zone is provided with a growth lamp strip, and the cultivation zone is provided with a microbial agent inlet.

[0007] By arranging the dormant zone cavity and the cultivation zone cavity in the microbial cultivation tank, the microorganisms that need to be cultivated and the microorganisms that have been cultivated are separated, and the waste of microorganisms is reduced.

[0008] Further, the feeding assembly comprises: a storage bin arranged on the rotary cultivator for storing microbial liquid; an atomizing nozzle connected with the storage bin for atomizing and spraying the microbial liquid.

[0009] By arranging the storage bin, the dormant microorganisms are activated, and the effect of the microorganisms is improved.

[0010] Further, the dormant zone cavity is provided with a partition plate, the upper and lower ends of the partition plate extend to the bottom of the dormant zone cavity, and the partition plate divides the dormant zone cavity into a first part connected with the flow switch and a second part communicated with the dormant zone cavity through the pipeline.

[0011] By arranging the partition plate, the microorganisms that have not been cultivated are prevented from being directly sprayed to the soil, and the effect is affected.

[0012] Further, a U-shaped tube is arranged between the first part and the second part, and the two ends of the U-shaped tube extend to the bottom end positions of the first part and the second part respectively.

[0013] By arranging the U-shaped tube, when the microbial liquid in the first part is sprayed, the liquid level is lowered, and under the action of atmospheric pressure, the microbial liquid in the second part continues to flow to the first part through the U-shaped tube.

[0014] Further, a motor is further arranged on the microbial cultivation tank, the output end of the motor is fixedly connected with a driving wheel, a hollow tube is rotatably arranged on the microbial cultivation tank, one end of the hollow tube extends into the second part, a driven wheel engaged with the driving wheel is fixedly connected to the hollow tube, and a stirring branch is arranged on the hollow tube and located in the second part.

[0015] By arranging the motor, the microbial liquid in the second part is stirred to ensure the dormancy effect of the microorganisms.

[0016] Further, the hollow tube extends to the hibernation gas, and the stirring rod is provided with a gas outlet hole communicated with the hollow tube.

[0017] Through the gas outlet hole, when the hollow tube rotates, the stirring rod rotates, and the hibernation gas is thrown out of the microbial liquid through the gas outlet hole.

[0018] Further, the microbial cultivation tank is provided with a gas pump, the gas pump is connected with the hibernation gas, and the gas pump is connected with the upper end of the hollow tube through a rotating seal.

[0019] The gas pump is arranged to discharge the hibernation gas to the microbial liquid through the gas outlet hole.

[0020] Further, the rotary tiller is provided with a rotary tiller group.

[0021] The soil is turned up through the rotary tiller group.

[0022] The beneficial effects of the present application are that a soil remediation device using microorganisms is provided, the cultivation and spraying of microorganisms are combined, the microbial cultivation device and the micro tiller are combined, small-area soil petroleum hydrocarbon pollution remediation is carried out, the device is convenient to transport and operate, and quick response can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings constituting a part of the present application are used to provide a further understanding of the present application, so that other features, objects and advantages of the present application become more apparent. The illustrative embodiment drawings of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application.

[0024] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn according to the scale.

[0025] In the drawings:

[0026] Figure 1 is a whole schematic diagram according to an embodiment of the present application;

[0027] Figure 2 is Figure 1 The cross-sectional schematic diagram of the microbial cultivation tank in the embodiment.

[0028] Reference numerals:

[0029] 100, rotary cultivator; 101, microbial cultivation tank; 102, flow switch; 103, storage bin; 104, atomizing nozzle; 105, rotary cultivator blade group; 106, dormant zone cavity; 107, cultivation zone cavity; 108, growth lamp strip; 109, inoculant inlet; 110, air pump; 111, partition plate; 112, first part; 113, second part; 114, U-shaped tube; 115, motor; 116, driving wheel; 117, hollow tube; 118, driven wheel; 119, stirring support rod. DETAILED DESCRIPTION

[0030] Embodiments of the present disclosure will be described in more detail with reference to the drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly and completely understood. It should be understood that the drawings of the present disclosure are only for illustrative purposes and are not intended to limit the scope of protection of the present disclosure.

[0031] It should also be noted that, for ease of description, only the parts related to the present application are shown in the drawings. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0032] It should be noted that the concepts of "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0033] It should be noted that the adjectives "one", "multiple" mentioned in the present disclosure are illustrative and not limiting, and those skilled in the art should understand that, unless otherwise explicitly stated in the context, it should be understood as "one or more".

[0034] The present disclosure will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0035] Reference Figures 1-2The utility model provides a kind of soil remediation equipment using microorganism, comprising: rotary cultivator 100, microorganism culture tank 101, flow switch 102, storage bin 103, atomizing nozzle 104.Rotary cultivator 100 is provided with rotary cultivator set 105 for turning up soil.Microorganism culture tank 101 inner cavity includes: dormancy area cavity 106 and cultivation area cavity 107, and the bottom of dormancy area cavity 106 and cultivation area cavity 107 is communicated by pipeline, and dormancy gas is arranged in dormancy area, and growth lamp band 108 is arranged in cultivation area, and microorganism culture tank 101 is provided with fungicide inlet 109 communicated with cultivation area cavity 107.

[0036] In one embodiment, the inner cavity of the dormancy area cavity 106 is provided with a partition plate 111, the upper and lower ends of the partition plate 111 extend to the bottom of the dormancy area cavity 106, and the partition plate 111 divides the dormancy area cavity 106 into a first part 112 connected with the flow switch 102 and a second part 113 communicated with the dormancy area cavity 106 by a pipeline. A U-shaped tube 114 is arranged between the first part 112 and the second part 113, and the two ends of the U-shaped tube 114 extend to the bottom end positions of the first part 112 and the second part 113 respectively. The U-shaped tube 114 is arranged to keep the liquid levels of the first part 112 and the second part 113 consistent.

[0037] In one embodiment, the microorganism culture tank 101 is further provided with a motor 115, the output end of the motor 115 is fixedly connected with a driving wheel 116, the microorganism culture tank 101 is rotatably provided with a hollow tube 117 with one end extending into the second part 113, the hollow tube 117 is fixedly connected with a driven wheel 118 engaged with the driving wheel 116, and the hollow tube 117 is further provided with a stirring branch 119 located in the second part 113.

[0038] The one end of the hollow tube 117 extends into the dormancy gas, and the stirring branch 119 is provided with a gas outlet hole communicated with the inner cavity of the hollow tube 117.

[0039] In one of the above embodiments, the microorganism culture tank 101 is provided with a gas pump 110, the gas inlet end of the gas pump 110 is connected with the dormancy gas, and the gas outlet end of the gas pump 110 is connected with the upper end of the hollow tube 117 through a rotary seal (for reference, a rotary seal).

[0040] Working process: the microbial mother culture is added into the microbial culture tank 101, and the growth lamp belt 108 is used for cultivation in the culture area cavity to improve the activity and quantity of the microorganism. The cultivated microorganism enters the dormancy area cavity 106 containing dormant gas. When used, the flow switch 102 is used to control the injection into the storage bin 103 installed on the micro tiller. Since the concentration of the dormant gas after the dormancy area is reduced, the microorganism automatically restores activity. The microorganism with restored activity is sprayed on the micro tiller travel route by the atomizing nozzle 104. When the micro tiller travels, the contaminated soil sprayed with the microbial agent is turned over, so that the microbial agent is more uniformly mixed with the contaminated soil, and the soil remediation efficiency is improved.

[0041] The worker only needs to control the micro tiller to control the travel area and route, so that only one worker can perform small-area soil remediation work.

[0042] The above description is only some of the preferred embodiments of the present disclosure and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the application involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the above inventive concept. For example, the above features are replaced with the technical features disclosed in the embodiments of the present disclosure (but not limited to) having similar functions to form technical solutions.

Claims

1. A soil remediation device utilizing microorganisms, characterized in that: include: Rotary tillers are used to turn over soil; Microbial culture tanks are used to cultivate microorganisms. The feeding component, mounted on the rotary tiller, is used to feed the microorganisms from the microbial cultivation tank into the soil; A flow switch is installed on the microbial culture tank. A feeding pipe is connected to the outlet of the flow switch, and the other end of the feeding pipe is connected to the feeding component. The inner cavity of the microbial culture tank includes: The dormancy zone cavity and the cultivation zone cavity are connected at their bottoms by a pipe. The dormancy zone is equipped with dormancy gas, and the cultivation zone is equipped with a growth light strip. The microbial cultivation tank is equipped with a bacterial agent inlet that is connected to the cultivation zone cavity.

2. The soil remediation equipment utilizing microorganisms according to claim 1, characterized in that: The feeding assembly includes: The storage bin, located on the rotary tiller, is used to store microbial liquid; The atomizing nozzle, connected to the storage bin, is used to atomize and spray out the microbial liquid.

3. The soil remediation device utilizing microorganisms according to claim 2, characterized in that: A partition plate is installed inside the dormant zone cavity. The upper and lower ends of the partition plate extend to the bottom of the dormant zone cavity. The partition plate divides the dormant zone cavity into a first part connected to the flow switch and a second part connected to the dormant zone cavity through a pipe.

4. A soil remediation device utilizing microorganisms according to claim 3, characterized in that: A U-shaped tube is provided between the first part and the second part, with both ends of the U-shaped tube extending to the bottom of the first part and the second part, respectively.

5. A soil remediation device utilizing microorganisms according to claim 4, characterized in that: The microbial culture tank is also equipped with a motor, and the output end of the motor is fixedly connected to a drive wheel. A hollow tube with one end extending into the second part is rotatably installed on the microbial culture tank. A driven wheel that meshes with the drive wheel is fixedly connected to the hollow tube. A stirring support rod located in the second part is also installed on the hollow tube.

6. A soil remediation device utilizing microorganisms according to claim 5, characterized in that: One end of the hollow tube extends into the dormant gas, and the stirring rod is provided with a small vent hole that communicates with the inner cavity of the hollow tube.

7. A soil remediation device utilizing microorganisms according to claim 6, characterized in that: The microbial culture tank is equipped with an air pump. The air pump inlet is connected to a dormant gas, and the air pump outlet is connected to the upper end of the hollow tube via a rotating seal.

8. A soil remediation device utilizing microorganisms according to claim 1, characterized in that: The rotary tiller is equipped with a set of rotary tillage blades.

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