Biochar-loaded microorganism preparation device for soil and groundwater remediation

Abstract

The utility model discloses a biochar loaded microorganism preparation device for soil and groundwater remediation, which is matched with a material mixing tank and a material pushing pump for use and comprises a titration assembly and a granulation assembly, and the titration assembly comprises a fixed frame, a plurality of titration head units and a vibration material pushing unit; the vibration pushing unit comprises a spring, a vibration plate and a vibration motor; the titrating head unit comprises a titrating head, a material storage tank, a material pushing rod and a material supply pipe. The liquid dropping device disclosed by the utility model can be used for conveniently preparing the biochar-loaded microbial composite product in a microsphere form, and the structure is suitable for small-batch preparation and is relatively high in preparation efficiency. According to the specific structure, discontinuous liquid drop titration is achieved under the action of the vibration motor and the spring, and the liquid drop titration device has the advantages of being simple in structure, low in manufacturing cost and convenient to maintain. The granulating bin main body can realize the stirring and flushing effects through the arrangement of the tangential flushing liquid port, and compared with mechanical stirring, the damage to the granules can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to soil groundwater remediation technical field, concretely is a kind of soil groundwater remediation with biochar load microbial preparation device. BACKGROUND

[0002] Soil and groundwater pollution is a global environmental problem, mainly caused by industrial emissions, excessive use of fertilizers and pesticides in agriculture, and improper disposal of waste during urbanization. This pollution not only affects water quality, but also can have long-term effects on the ecosystem and human health through the food chain.

[0003] Using biochar to load microorganisms for soil and groundwater remediation is a current focus of attention. By combining the adsorption properties of biochar and the biodegradation ability of microorganisms, the removal efficiency of pollutants such as organic pollutants is effectively improved.

[0004] In specific applications, biochar can be directly applied to contaminated soil or groundwater to remove pollutants using its adsorption and biodegradation functions. It can also be placed in a permeable reactive barrier (PRB). Currently, the commonly used biochar load microorganisms are mostly granular materials, and there is no mature equipment. There are related patents, such as patent CN210012803U, a biochar load microbial preparation device for soil remediation, which mainly involves the preparation of biochar, but does not involve the preparation of biochar load microbial composite products. INVENTION CONTENTS

[0005] The purpose of the utility model is to provide a biochar load microbial preparation device for soil and groundwater remediation to solve the problems in the prior art.

[0006] To achieve the above purpose, the technical scheme of the utility model provides a biochar load microbial preparation device for soil and groundwater remediation, which is used in cooperation with a mixing tank and a pushing pump, and includes a titration assembly and a granulation assembly. The titration assembly includes a fixed frame, a plurality of titration head units, and a vibration pushing unit. The fixed frame includes a bottom plate, a top plate, and a side plate fixedly connected between the bottom plate and the top plate. The vibration pushing unit includes a spring, a vibration plate, and a vibration motor. The titration head unit includes a titration head, a storage tank, a pushing rod, and a feeding pipe. The titration head is fixed to the bottom plate of the fixed frame. The storage tank is a hollow cylindrical cavity structure with a bottom connected to the titration head and a top plate having a through hole. The storage tank is connected to the pushing pump through the feeding pipe. One end of the pushing rod is arranged inside the storage tank and is slidably connected to the inner wall of the storage tank. The other end of the pushing rod extends out of the through hole in the top plate. The upper part of the pushing rod is connected to the top plate of the fixed frame through the spring. The top of the pushing rod is fixedly connected to the vibration plate through the through hole in the top plate, and the vibration motor is arranged on the vibration plate.

[0007] Further, the titration head unit is four; the push rod includes a push plate and a push rod, the push plate is arranged in the storage tank and is in close and slidable connection with the inner wall of the storage tank, the top of the push plate is connected with the push rod, and the other end of the push rod extends out of the through hole in the top plate of the storage tank; a convex ring is arranged in the upper part of the push rod, a spring is arranged on the convex ring, and the other end of the spring is connected with the bottom surface of the top plate.

[0008] Further, the storage tank is individually connected to the push pump through a hose or is provided with a hard feeding pipe between multiple storage tanks and then is connected to the push pump through a hose.

[0009] Further, a gap is arranged between the vibrating plate and the top plate.

[0010] Further, the granulation assembly comprises a granulation bin body, a liquid inlet and a liquid outlet; the granulation bin body is a hollow rotary cavity structure, the bottom plate is arranged on the upper part of the granulation bin body, and the titration head unit is located at the opening in the upper part of the granulation bin body; the granulation bin body is provided with a discharge port in the lower part, and the liquid inlet and the liquid outlet are arranged on the side surfaces of the upper part and the lower part of the granulation bin body.

[0011] Further, the granulation assembly further comprises a flushing liquid port, the flushing liquid port is arranged in the middle lower part of the granulation bin body, and the axis of the flushing liquid port does not pass through the central axis of the granulation bin body.

[0012] The technical scheme of the utility model can realize preparation of biochar load microorganism composite product, and the biochar load microorganism composite product in the form of microspheres can be conveniently prepared through the liquid dropping device, the structure is suitable for small batch preparation, and the preparation efficiency is higher. In the specific structure, the discontinuous liquid drop titration is realized under the action of the vibrating motor and the spring, the structure is simple, the manufacturing cost is low, and the maintenance is convenient. The stirring and flushing effects can be realized through the setting of the tangential flushing liquid port of the granulation bin body, and compared with mechanical stirring, the damage to the particles is more easily reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall scheme schematic diagram of the utility model.

[0014] Figure 2 It is the overall schematic diagram of the preparation device of the utility model.

[0015] Figure 3 It is the local cutaway schematic diagram of the utility model.

[0016] Figure 4 It is the local cutaway enlarged schematic diagram of the titration head unit and the vibrating push unit of the utility model. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0018] As shown in the accompanying Figures 1-3 The preparation device of the utility model relates to a kind of biological carbon load microorganism preparation devices for soil groundwater remediation, which is suitable for preparing biological carbon load microorganism composite product by colloidal granulation, and the typical preparation process is as follows: after the pulverized biological carbon and microbial inoculum solution are mixed according to the preset ratio, sodium alginate solution is added to form a colloid, then the colloid is titrated into calcium chloride solution to form particles, and then biological carbon load microorganism composite product is obtained by washing and drying, and the specific preparation process is not the content of the present application.

[0019] As shown in the accompanying Figure 1 Preparation device C is used with mixing tank and pusher pump, for the process of titration and granulation of colloid, and mixing tank A and pusher pump B can be selected from existing products.

[0020] As shown in the accompanying Figure 2 、 3 , 4, the preparation device includes titration assembly 1 and granulation assembly 2, the titration assembly 1 includes fixed frame 11, several titration head units 12 and vibration pusher unit 13.

[0021] The fixed frame 11 includes bottom plate 111 and top plate 112, and the top plate 112 and the bottom plate 111 are fixedly connected by side plate 113.

[0022] The vibration pusher unit 13 includes spring 131, vibration plate 132 and vibration motor 133.

[0023] The titration head unit 12 includes titration head 121, storage tank 122, pusher rod 123 and feed pipe 124. Four titration head units 12 are provided in the drawing. The titration head 121 is a spray head with a cavity inside, fixed on the bottom plate 111, the storage tank 122 is a hollow cylindrical cavity structure, the bottom is communicated with the titration head 121, and the top plate is provided with a through hole. The storage tank 122 is communicated to the pusher pump through the feed pipe 124, and hard feed pipe is provided between the plurality of storage tanks 122 in the drawing, then connected to the pusher pump through hose, or each storage tank 122 can be connected to the pusher pump through hose.

[0024] The pushing rod 123 comprises a pushing plate 1231 and a pushing rod 1232, the pushing plate 1231 is arranged inside the storage tank 122 and is in close and slidable connection with the inner wall of the storage tank 122, the top of the pushing plate 1231 is connected with the pushing rod 1232, and the other end of the pushing rod 1232 extends out of the through hole of the top plate of the storage tank 122.

[0025] A convex ring 1233 is arranged on the upper part of the pushing rod 1232, a spring 131 is arranged on the convex ring 1233, and the other end of the spring 131 is connected with the bottom surface of the top plate 112. The top of the pushing rod 1232 extends out of the through hole arranged on the top plate 112 and is fixedly connected with a vibrating plate 132, and a gap is arranged between the vibrating plate 132 and the top plate. A vibrating motor 133 is arranged on the vibrating plate.

[0026] In use, the pushing pump pushes the colloid in the mixing tank to the storage tank 122, and under the action of the vibrating motor 133 and the spring 131, the pushing rod 123 can be driven to vibrate up and down with a small displacement, so that the colloid in the storage tank 122 can be pushed out in the form of discontinuous liquid drops. The structure is suitable for small-batch preparation, and compared with the current commonly used manual needle tube titration, the preparation efficiency is higher and it is convenient for subsequent experimental verification.

[0027] The granulation assembly 2 comprises a granulation bin body 21, a liquid inlet 22, a liquid outlet 23 and a flushing liquid inlet 24, the granulation bin body 21 is a rotary cavity structure with an inner cavity, the bottom plate 111 is arranged on the upper part of the granulation bin body 21, and the titration head unit 12 is located at the opening of the upper part of the granulation bin body 21. A discharge port is arranged on the lower part of the granulation bin body 21, the liquid inlet 22 and the liquid outlet 23 are arranged on the side surfaces of the upper part and the lower part of the granulation bin body 21, the axis of the liquid inlet 22 and the liquid outlet 23 passes through the central axis of the granulation bin body 21, and the flushing liquid inlet 24 is arranged on the middle and lower part of the granulation bin body 21 and the axis of the flushing liquid inlet 24 does not pass through the central axis of the granulation bin body 21. In use, calcium chloride solution is first added into the granulation bin body 21, then colloid titration is carried out, the remaining reaction liquid is discharged through the liquid outlet 23 after the titration is completed, and the cleaning liquid is poured into the flushing liquid inlet 24 at an inclined angle to realize the cleaning of the particles, and in addition, the preparation process can also realize the stirring action by adding calcium chloride solution through the flushing liquid inlet 24 by a circulating pump.

[0028] It should be noted that, unless otherwise clearly specified and limited, the terms such as "mounting", "connecting", "connecting", "fixing", "arranging" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A device for preparing a biochar-loaded microorganism for soil and groundwater remediation, which is used in cooperation with a mixing tank and a pushing pump, characterized in that, The titration assembly includes a fixed frame, a plurality of titration head units, and a vibrating pushing unit; the fixed frame includes a bottom plate, a top plate, and a side plate fixedly connected between the bottom plate and the top plate; the vibrating pushing unit includes a spring, a vibrating plate, and a vibrating motor; the titration head unit includes a titration head, a storage tank, a pushing rod, and a feeding pipe; the titration head 121 is fixed to the bottom plate of the fixed frame, the storage tank is a hollow cylindrical cavity structure, the bottom is communicated with the titration head, and the top plate is provided with a through hole; the storage tank is communicated to the pushing pump through the feeding pipe; one end of the pushing rod is arranged in the storage tank and is in close and slidable connection with the inner wall of the storage tank; the other end of the pushing rod extends out of the through hole in the top plate of the storage tank; the upper part of the pushing rod is connected to the top plate of the fixed frame through the spring; the top of the pushing rod is fixedly connected to the vibrating plate, and the vibrating motor is arranged on the vibrating plate.

2. The device for preparing the biochar-loaded microorganisms for soil and groundwater remediation according to claim 1, wherein The titration head unit is four; the pushing rod includes a pushing plate and a pushing rod, the pushing plate is arranged in the storage tank and is in close and slidable connection with the inner wall of the storage tank, the top of the pushing plate is connected to the pushing rod, and the other end of the pushing rod extends out of the through hole in the top plate of the storage tank; the upper part of the pushing rod is provided with a protruding ring, the protruding ring is provided with a spring, and the other end of the spring is connected to the bottom surface of the top plate.

3. The device for preparing the biochar-loaded microorganisms for soil and groundwater remediation according to claim 2, characterized in that, The storage tank is individually connected to the pushing pump through a hose or is connected to the pushing pump through a hose after a hard feeding pipe is arranged between a plurality of storage tanks.

4. The device for preparing the biochar-loaded microorganisms for soil and groundwater remediation according to claim 2, wherein A gap is arranged between the vibrating plate and the top plate.

5. The device for preparing the biochar-loaded microorganisms for soil and groundwater remediation according to claim 1, wherein The granulation assembly includes a granulation bin body, a liquid inlet, and a liquid outlet; the granulation bin body is a hollow rotary cavity structure, the bottom plate is arranged on the upper part of the granulation bin body, and the titration head unit is located at the opening of the upper part of the granulation bin body; the granulation bin body is provided with a discharge port at the lower part, and the liquid inlet and the liquid outlet are arranged on the side surfaces of the upper part and the lower part of the granulation bin body.

6. The device for preparing the biochar-loaded microorganisms for soil and groundwater remediation according to claim 5, wherein The granulation assembly further includes a flushing liquid port, the flushing liquid port is arranged in the middle lower part of the granulation bin body, and the axis of the flushing liquid port does not pass through the central axis of the granulation bin body.

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