CN113976620A - Microbial remediation soil treatment system and method for heavy metal contaminated soil - Google Patents
Microbial remediation soil treatment system and method for heavy metal contaminated soil Download PDFInfo
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- CN113976620A CN113976620A CN202111255207.XA CN202111255207A CN113976620A CN 113976620 A CN113976620 A CN 113976620A CN 202111255207 A CN202111255207 A CN 202111255207A CN 113976620 A CN113976620 A CN 113976620A
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- 239000002689 soil Substances 0.000 title claims abstract description 165
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 28
- 230000000813 microbial effect Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005067 remediation Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 110
- 238000003756 stirring Methods 0.000 claims abstract description 74
- 244000005700 microbiome Species 0.000 claims abstract description 24
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 241000894006 Bacteria Species 0.000 claims description 23
- 238000009825 accumulation Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 6
- 230000001580 bacterial effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 241000233866 Fungi Species 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
- B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
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- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Mycology (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a microbial remediation soil treatment system and method for heavy metal contaminated soil, which comprises a uniform stirring structure; the homogenizing structure comprises a blending chamber; a separation cavity is arranged in the middle of the mixing chamber; the stirring chamber is divided into a stirring cavity and a stir-frying cavity by a separation cavity; the soil after being crushed by the crushing cavity is sprinkled into the stir-frying cavity through the separation cavity, and the pushing structure in the separation cavity sprinkles the microbial liquid into the soil; the stirring structure in the stirring cavity correspondingly stirs the soil. The invention provides a microbial remediation soil treatment system and a treatment method for heavy metal contaminated soil, which can effectively utilize the action of microorganisms for stabilizing heavy metals in the soil.
Description
Technical Field
The invention relates to the field of microbial soil remediation.
Background
The land resources are limited, but the soil is polluted in the process of human activities, and the polluted soil is difficult to utilize; thus, contaminated soil needs to be remediated so that the soil can be reused; wherein the soil pollution comprises heavy metal polluted soil, and the microorganisms are used for consuming and transforming the heavy metals in the soil so as to achieve the aim of restoring the soil; when the microorganisms are used for repairing soil, the microorganisms can be uniformly distributed in the soil, the existence form of heavy metals in the soil can be converted to a greater extent, the heavy metals are stabilized, and the repairing effect is improved.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a microbial remediation soil treatment system and a treatment method for heavy metal contaminated soil, which can effectively utilize the effect of microbial transformation on heavy metals in the soil.
The technical scheme is as follows: in order to achieve the purpose, the technical scheme of the invention is as follows:
the microbial remediation soil treatment system for the heavy metal contaminated soil comprises a uniform stirring structure; the homogenizing structure comprises a blending chamber; a separation cavity is arranged in the middle of the mixing chamber; the stirring chamber is divided into a stirring cavity and a stir-frying cavity by a separation cavity; the soil after being crushed by the crushing cavity is sprinkled into the stir-frying cavity through the separation cavity, and the pushing structure in the separation cavity sprinkles the microbial liquid into the soil; the stirring structure in the stirring cavity correspondingly stirs the soil.
Further, a plurality of feed inlets are arranged at the edge part of the top of the mixing chamber; the separation cavity comprises a lower sliding plate and a liquid sprinkling cavity; the middle part of the lower sliding plate is arranged in a downward concave manner; the middle part of the lower sliding plate is provided with a lower leakage opening; the discharge end of the lower leakage opening is fixedly connected with the liquid sprinkling cavity; the liquid sprinkling cavity is in an inverted disc shape, and the discharge end of the lower leakage opening is correspondingly communicated with the feed end of the liquid sprinkling cavity; a rotating shaft is arranged in the middle of the top of the crushing cavity; one end of the rotating shaft extends downwards and penetrates into the liquid spraying cavity; a plurality of grinding rods are fixedly arranged on the side wall of the rotating shaft; the length of the grinding rods is suitable for the arrangement of the side wall of the lower sliding plate; a pushing structure is fixedly arranged at the extending end of the rotating shaft; soil after crushing falls into in the spill intracavity and pushes up the long-pending unrestrained intracavity of stir-fry that falls through pushing up the structure, just push up the structure and release microorganism fungus liquid to soil in.
Further, the push structure comprises a semicircular block; the semicircular block is correspondingly arranged in the liquid spraying cavity, and the side wall of the semicircular block is arranged in a gap with the inner wall of the liquid spraying cavity; the extending end of the rotating shaft is correspondingly and fixedly connected to the middle of the semicircular block, and one end of the rotating shaft, which is used for fixing the semicircular block, is of an elastic structure; a limiting ring edge is fixedly arranged at the inner edge of the liquid sprinkling cavity in the circumferential direction; the surface of the limit ring edge is correspondingly limited on the edge of the semicircle block; a convex block is fixedly arranged between the contact position of the edge of the limiting ring and the semicircular block; a vibration device is arranged in the lug;
a plurality of blanking holes are formed in the semicircular block in a penetrating mode, and the blanking holes gradually decrease towards one end of the edge of the semicircular block; the plurality of blanking holes are arranged at intervals in the circumferential direction; a plurality of notches are circumferentially formed in the edge of the liquid sprinkling cavity; the notches are arranged corresponding to the edges of the semicircular blocks; and the soil is sprinkled into the stir-frying cavity through the feeding hole and the gap.
Furthermore, a liquid accumulation chamber is formed inside the semicircular block; the liquid accumulation chamber is communicated with the bacteria liquid storage box through a conduit in the rotating shaft; a plurality of seepage holes are formed in the curved surface of the semicircular block and the inner wall of the blanking hole; soil is leaking the in-process down, the axis of rotation drives the semicircle piece and rotates the dispersion in soil, just the indoor fungus liquid of hydrops leaks the contact in the soil that leaks down through oozing the hole.
Further, the bottom of the stir-frying cavity is of a downward convex semicircular shape; the inner wall of the stir-frying cavity is provided with a sliding rail in a winding way; the sliding rails are arranged at intervals in the fluctuating way at the bottom of the stir-frying cavity; the slide rail is correspondingly clamped in the stirring structure; the plurality of stirring structures are suitable for the arrangement of the intervals among the sliding rails; the stirring ends of the stirring structures correspondingly stir the soil in the stir-frying cavity in an up-and-down surrounding manner;
the stirring structure comprises an installation block; one side of the mounting block is fixed on the sliding device in the slide rail; the bottom of the mounting block is fixedly provided with a connecting strip; an arc-shaped strip block is fixed at one end of the connecting strip, which is far away from the mounting block; the mounting block drives the arc-shaped strip block to circularly move along the track of the slide rail through the connecting strip; the arc-shaped strip blocks are suitable for being arranged on the bottom surface of the stir-frying cavity, and the arc-shaped strip blocks move circularly in an up-and-down alternating mode to stir soil and bacterial liquid.
Furthermore, one end of the arc-shaped strip block, which is far away from the connecting strip, is gradually reduced, and one side of the arc-shaped strip block in the rotating direction is a curved surface; an air cavity is formed in the arc-shaped strip block; one side wall of the air cavity corresponding to the surface of the arc-shaped strip block is of an elastic structure, and a plurality of elastic bulges are fixedly arranged on the side wall of the air cavity elastic structure; the air cavity is communicated with the air pump through an air pipe in the connecting strip; intermittent pressurization in the air cavity causes a plurality of elastic bulges to bulge; a plurality of arc type strip is corresponding turns over stirs in soil, the protruding corresponding intermittent type nature of elasticity is raised and is shoulder in soil.
Furthermore, a distributing structure is arranged on the side wall of the other side of the arc-shaped strip block relative to the curved surface; the distributing structure comprises a swinging strip; the swing strip is suitable for the arc-shaped strip block track arrangement; the swinging device on the side wall of the arc-shaped strip block is in driving connection with the swinging strip; a liquid guide pipe is arranged inside the swing strip; the liquid guide pipe is communicated with the bacteria liquid storage chamber on the arc-shaped bar block through a connecting hole; a plurality of dividing pieces are fixedly arranged on one side of the swing strip away from the arc-shaped strip block; the plurality of dividing sheets are arranged along the extending track of the swinging strip at intervals; the edge position of the cutting piece is a cutting edge; a liquid seepage interval is arranged inside the dividing sheet; the liquid seepage section is communicated with the liquid guide pipe; a plurality of liquid seepage holes are formed in the side wall of the partition sheet; when the arc-shaped strip block moves and turns over the soil, the bacterium liquid in the seepage interval seeps out through the seepage hole and is mixed into the soil.
Further, the bottom of the stir-frying cavity is provided with a semi-circular bottom shell; the semicircular bottom shell is correspondingly detachably arranged at the bottom of the stir-frying cavity; the arc-shaped strip block is correspondingly arranged on the inner wall of the semicircular bottom shell; one end of the semicircular bottom shell is hinged with the bottom of the stir-frying cavity; a fixed block is fixedly arranged at the edge of the other end of the semicircular bottom shell; a matching block is fixedly arranged on the side wall of the bottom of the stir-frying cavity corresponding to the fixed block; when the fixed block corresponds to the matching block, the fixed block is fixedly connected with the fixed block and the matching block through bolts;
a support ring block is fixedly arranged at the bottom edge of the stir-frying cavity in the circumferential direction; and a plurality of supporting legs are fixedly arranged at the bottom of the supporting ring block at circumferential intervals.
Further, the first step: adding the crushed soil into the crushing cavity through the feeding hole, and stirring and loosening the soil with one side being formed into blocks through the mutual matching action of the crushing rods; then the soil is introduced into the liquid sprinkling cavity through the lower leakage opening;
the second step is as follows: the rotating shaft drives the semicircular block to rotate, and the bacteria liquid is correspondingly seeped out of the liquid accumulation chamber to the surface of the semicircular block through the seepage hole; when the soil is guided by the semicircular blocks to move dispersedly, the seeped bacteria liquid is correspondingly mixed in the soil;
the third step: the soil leaked from the liquid sprinkling cavity falls into the stir-frying cavity; the arc-shaped strips move in an upward and downward mode relative to the annular direction and stir the soil; and in the stirring process, the dividing pieces on the swing strip on one side of the arc-shaped strip block are correspondingly divided into the soil, and the bacteria liquid seeped from the dividing pieces is correspondingly mixed into the soil.
Has the advantages that: the invention can uniformly mix microorganisms into the soil, thereby better converting the existence form of heavy metals in the soil and reducing the harm of the heavy metals; including but not limited to the following benefits:
1) when the soil passes through the surface of the semicircular block, the soil can be fully contacted with the oozed microbial liquid, so that the microbes can be more uniformly distributed and collected in the soil, and the repairing effect is further improved;
2) arc type strip piece is in the rotation in-process up-and-down fluctuation motion and is turned over the stirring to soil, and the corresponding protruding intermittent type nature uplift of a plurality of elasticity of drive of air cavity sends out from making between the soil to scatter, temporarily leaves the space to in the branch spill structure fills the microorganism to between the space of reserving, through the secondary add microorganism, accelerate the efficiency of conversion.
Drawings
FIG. 1 is a diagram of a processing system architecture;
FIG. 2 is a view showing the structure of the homogenizing;
FIG. 3 is a view of the structure of a semi-circular bottom shell;
FIG. 4 is a view of the construction of the blending chamber;
FIG. 5 is a diagram of a compartment;
FIG. 6 is a diagram of a semicircular block;
FIG. 7 is a view showing a structure of a stirring structure;
FIG. 8 is a view of the structure of the swing bar;
fig. 9 is a view showing a structure of a divided piece.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figures 1-9: the microbial remediation soil treatment system for heavy metal contaminated soil comprises a uniform stirring structure 1; the homogenizing structure 1 comprises a stirring chamber 11; a separation cavity 12 is arranged in the middle of the mixing chamber 11; the stirring chamber 11 is divided into a stirring cavity 13 and a stir-frying cavity 14 by a separating cavity 12; the soil after being crushed by the crushing cavity 13 is distributed into the stir-frying cavity 14 through the separating cavity 12, and the pushing structure 2 in the separating cavity 12 distributes the microbial liquid into the soil; the stirring structure 3 in the stirring cavity 14 correspondingly stirs the soil. Add the soil after smashing into the blending chamber earlier, make between the soil more loose, then leak down the partitioned cavity to the pushing structure can be even when pushing up the soil mix the microorganism fungus liquid into soil, later soil and microorganism fungus liquid fall to stir-fry intracavity and stir the structure through stirring and stir evenly, and then improve the prosthetic effect of microorganism.
The edge part of the top of the mixing chamber 11 is provided with a plurality of feed inlets 111; the separation chamber 12 comprises a lower sliding plate 121 and a liquid sprinkling chamber 123; the middle part of the lower sliding plate 121 is arranged in a downward concave manner; the middle part of the lower sliding plate 121 is provided with a lower leakage opening 122; the discharge end of the lower leakage opening 122 is fixedly connected with the liquid sprinkling cavity 123; the liquid sprinkling cavity 123 is in an inverted disc shape, and the discharge end of the lower leakage opening 122 is correspondingly communicated with the feed end of the liquid sprinkling cavity 123; a rotating shaft 131 is arranged in the middle of the top of the crushing cavity 13; one end of the rotating shaft 131 extending downwards penetrates into the liquid sprinkling cavity 123; a plurality of crushing rods 132 are fixedly arranged on the side wall of the rotating shaft 131; the length of the grinding rods 132 is suitable for the arrangement of the side wall of the lower sliding plate 121; the extending end of the rotating shaft 131 is fixedly provided with a stacking structure 2; the ground soil falls into the liquid sprinkling cavity 123 and is pushed and sprinkled into the stir-frying cavity 14 through the pushing structure 2, and the pushing structure 2 releases the microbial liquid into the soil; the rotation axis drives and grinds pole and stirs loose soil, makes soil looser, and when loose soil fell into to spill the sap cavity, the pushing structure can be corresponding when driving soil motion mix the microorganism fungus liquid between the soil to the microorganism disperses more heavy metals in the conversion soil, reaches the purpose of restoreing soil.
The push structure 2 comprises a semicircular block 21; the semicircular block 21 is correspondingly arranged in the liquid sprinkling cavity 123, and the side wall of the semicircular block 21 is arranged in a gap with the inner wall of the liquid sprinkling cavity 123; the extending end of the rotating shaft 131 is correspondingly and fixedly connected to the middle of the semicircular block 21, and the end of the rotating shaft 131, which is used for fixing the semicircular block 21, is of an elastic structure; a limiting ring edge 124 is fixedly arranged at the inner edge of the liquid sprinkling cavity 123 in the circumferential direction; the surface of the limit ring edge 124 is correspondingly limited on the edge of the semicircular block 21; a convex block 125 is fixedly arranged between the position where the limit ring edge 124 is contacted with the semicircular block 21; a vibration device is arranged in the lug 125; the rotating shaft drives the semicircular block to rotate, the semicircular block is pressed against the convex block, and the convex block correspondingly drives the semicircular block to vibrate in the rotating process of the semicircular block, so that microorganisms can be favorably seeped to the surface of the semicircular block to be contacted with soil, and the semicircular block can be favorably dispersed and leaked downwards in the vibrating process to avoid blockage;
a plurality of blanking holes 211 are formed in the semicircular block 21 in a penetrating manner, and the blanking holes 211 gradually decrease towards one end of the edge of the semicircular block 21; the plurality of blanking holes 211 are arranged at intervals in the circumferential direction; a plurality of notches 126 are annularly formed in the edge of the liquid sprinkling cavity 123; a plurality of notches 126 are arranged corresponding to the edges of the semicircular block 21; the soil is sprinkled into the stir-frying cavity 14 through the blanking hole 211 and the gap 126; when the soil passes through the surface of the semicircular block, the soil can be fully contacted with the oozed microbial liquid, so that the microbes can be more uniformly distributed and collected in the soil, and the repairing effect is improved.
An accumulated liquid chamber 212 is arranged in the semicircular block 21; the liquid accumulation chamber 212 is communicated with the bacteria liquid storage box through a conduit in the rotating shaft 131; a plurality of seepage holes 22 are formed in the curved surface of the semicircular block 21 and the inner wall of the blanking hole 211; in the process of soil leakage, the rotating shaft 131 drives the semicircular block 21 to rotate and disperse in the soil, and the bacteria liquid in the liquid accumulation chamber 212 leaks out to contact with the leaked soil through the leakage hole 22; the soil moving in this way is continuously contacted with the oozed bacterial liquid, the microorganisms are more uniformly doped into the soil, and the microorganisms are utilized to more comprehensively transform the heavy metals in the soil, so that the aim of restoring the soil is fulfilled.
The bottom of the stir-frying cavity 14 is of a downward convex semicircular shape; the inner wall of the stir-frying cavity 14 is provided with a sliding rail 141 in a winding way; the slide rails 141 are arranged at intervals in the fluctuating way at the bottom of the stir-frying cavity 14; the slide rail 141 is correspondingly clamped in the stirring structure 3; the stirring structures 3 are arranged in a manner of adapting to the intervals among the slide rails 141; the stirring ends of the stirring structures 3 correspondingly stir the soil in the stir-frying cavity 14 in an up-and-down surrounding manner; a plurality of stirring structures are along slide rail endless motion, because the slide rail distance turns over the height of stir-fry chamber bottom and differs to stirring the structure and being in the height that turns over the stir-fry intracavity also different, stirring the structure at the pivoted in-process, a plurality of stirring structures are at the circumferential motion that fluctuates from top to bottom, and then can stir the soil of stir-fry intracavity to turning over, thereby can be better with the microorganism homogenize and distribute to soil.
The stirring structure 3 comprises a mounting block 31; one side of the mounting block 31 is fixed on the sliding device in the slide rail 141; the bottom of the mounting block 31 is fixedly provided with a connecting strip 32; an arc-shaped strip block 33 is fixed at one end of the connecting strip 32 far away from the mounting block 31; the mounting block 31 drives the arc-shaped strip block 33 to circularly move along the track of the slide rail 141 through the connecting strip 32; the arc-shaped strips 33 are arranged on the bottom surface of the stir-frying cavity 14 in a suitable manner, and the arc-shaped strips 33 move circularly in an up-and-down alternating manner to stir soil and bacterial liquid; the sliding device drives the mounting block to circularly move along the track of the sliding rail, the mounting block drives the arc-shaped strip block to circularly rotate through the connecting strip, and the arc-shaped strip block moves up and down in the rotating process so as to stir soil; thereby stirring and collecting the microorganisms into the soil.
One end of the arc-shaped strip block 33, which is far away from the connecting strip 32, is gradually reduced, and one side of the arc-shaped strip block 33 in the rotating direction is a curved surface; an air cavity 331 is formed inside the arc-shaped strip 33; one side wall of the air cavity 331 corresponding to the surface of the arc-shaped strip 33 is of an elastic structure, and a plurality of elastic protrusions 332 are fixedly arranged on the side wall of the elastic structure of the air cavity 331; the air cavity 331 is communicated with the air pump through an air pipe in the connecting strip 32; intermittent pressurization in the air cavity 331 causes the elastic protrusions 332 to bulge; a plurality of arc-shaped strips 33 correspondingly stir up in soil, and the corresponding intermittence of the elastic protrusions 332 is shoulder charged in soil. Arc type strip piece is when stirring soil, and the corresponding a plurality of elastic bulge intermittent type nature uplifts of drive of air cavity send out to scatter from making between the soil, temporarily leaves the space to in the branch spill structure fill the microorganism to between the space of reserving, through the secondary add microorganism, accelerate the efficiency of conversion.
The side wall of the other side of the arc-shaped strip block 33, which is opposite to the curved surface, is provided with a distributing structure 4; the distributing structure 4 comprises a swinging bar 41; the swing strip 41 is suitable for the track arrangement of the arc-shaped strip blocks 33; the swinging device on the side wall of the arc-shaped strip block 33 is in driving connection with the swinging strip 41; a liquid guide pipe 411 is arranged inside the swing strip 41; the liquid guide pipe 411 is communicated with the bacteria liquid storage chamber on the arc-shaped bar block 33 through a connecting hole; a plurality of dividing sheets 42 are fixedly arranged on one side of the swing strip 41 away from the arc-shaped strip block 33; a plurality of the dividing sheets 42 are arranged along the extending track of the swinging strip 41 at intervals; the edge position of the dividing sheet 42 is a cutting edge; a liquid seepage interval 421 is arranged inside the dividing sheet 42; the liquid seepage section 421 is communicated with the liquid guide pipe 411; a plurality of liquid seepage holes 422 are formed in the side wall of the dividing sheet 42; when the arc-shaped bar 33 moves and turns over the soil, the bacteria liquid in the liquid seepage interval 421 seeps out through the liquid seepage hole 422 and is mixed into the soil. When the arc-shaped strip blocks stir soil, the cutting pieces are correspondingly cut into the soil, and meanwhile the liquid seeping holes seep bacteria liquid to the surfaces of the cutting pieces, so that the soil can be correspondingly contacted with the bacteria liquid, the bacteria liquid is added into the soil from the secondary side, and the uniform distribution of microorganisms can be effectively collected in the soil through the stirring of the arc-shaped strip blocks, so that the conversion speed is accelerated, and the repair degree is improved.
The bottom of the stir-frying cavity 14 is provided with a semicircular bottom shell 142; the semicircular bottom shell 142 is correspondingly detachably mounted at the bottom of the stir-frying cavity 14; the arc-shaped strip 33 is correspondingly arranged on the inner wall of the semicircular bottom shell 142; one end of the semicircular bottom shell 142 is hinged with the bottom of the stir-frying cavity 14; a fixing block 143 is fixedly arranged on the edge of the other end of the semicircular bottom shell 142; a matching block 144 is fixedly arranged on the side wall of the bottom of the stir-frying cavity 14 corresponding to the fixing block 143; when the fixed block 143 corresponds to the matching block 144, the fixed block 143 is fixedly connected to the fixed block 143 and the matching block 144 through bolts; a supporting ring block 145 is fixedly arranged at the bottom edge of the stir-frying cavity 14 in the circumferential direction; and a plurality of supporting feet 146 are fixedly arranged at the bottom of the supporting ring block 145 in the circumferential direction at intervals. Through the cooperation of fixed block and cooperation piece, can be corresponding close or open the semicircle drain pan, can pour out soil when opening the semicircle drain pan, convenient operation is swift.
The first step is as follows: the ground soil is firstly added into the stirring cavity 13 through the feeding hole 111, and the soil with one side being blocked is stirred and loosened through the mutual cooperation of the grinding rods 132; then the soil is introduced into the liquid sprinkling cavity 123 through the lower leakage opening 122; the loose soil can be conveniently added with the microbial liquid, and the microbes can transform heavy metals in a wider range, repair the soil and reduce harm.
The second step is as follows: the rotating shaft 131 drives the semicircular block 21 to rotate, and the bacteria liquid seeps out of the liquid accumulation chamber 212 correspondingly through the seepage hole 22 to the surface of the semicircular block 21; when the soil is guided by the semicircular block 21 to move dispersedly, the seeped bacteria liquid is correspondingly mixed in the soil; the moved soil passes through the surface of the semicircular block, and the bacterial liquid seeped out of the surface of the semicircular block can be contacted with the soil, so that the microorganisms can be uniformly distributed and collected in the soil.
The third step: the soil leaked from the sprinkling cavity 123 falls into the stir-frying cavity; the arc-shaped strips 33 move in an upward and downward mode relative to the annular direction and stir the soil; in the stirring process, the dividing pieces 42 on the swinging strips 41 on one side of the arc-shaped strip block 33 are correspondingly divided into the soil, and the bacteria liquid seeped out from the dividing pieces 42 is correspondingly mixed into the soil; by uniformly doping microorganisms into the soil for many times, the heavy metals in the soil can be better converted, and the harm is reduced.
The above is only a preferred embodiment of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made to the embodiments described above without departing from the principles of the invention described above, and such modifications and adaptations are intended to be within the scope of the invention.
Claims (9)
1. Heavy metal contaminated soil's microbial remediation soil processing system, its characterized in that: comprises a homogenizing structure (1); the homogenizing structure (1) comprises a mixing chamber (11); a separation cavity (12) is arranged in the middle of the mixing chamber (11); the stirring chamber (11) is divided into a stirring cavity (13) and a stir-frying cavity (14) by a separating cavity (12); the soil after being crushed by the crushing cavity (13) is distributed into the stir-frying cavity (14) through the separating cavity (12), and the microbial liquid is distributed into the soil by the pushing structure (2) in the separating cavity (12); the stirring structure (3) in the stirring cavity (14) correspondingly stirs the soil.
2. The microbial remediation soil treatment system for heavy metal contaminated soil of claim 1, wherein: the edge part of the top of the mixing chamber (11) is provided with a plurality of feed inlets (111); the separation chamber (12) comprises a lower sliding plate (121) and a liquid sprinkling chamber (123); the middle part of the lower sliding plate (121) is arranged in a downward concave manner; a lower leakage opening (122) is formed in the middle of the lower sliding plate (121); the discharge end of the lower leakage opening (122) is fixedly connected with the liquid sprinkling cavity (123); the liquid sprinkling cavity (123) is in an inverted disc shape, and the discharge end of the lower leakage opening (122) is correspondingly communicated with the feed end of the liquid sprinkling cavity (123); a rotating shaft (131) is arranged in the middle of the top of the crushing cavity (13); one end of the rotating shaft (131) extending downwards penetrates into the liquid spraying cavity (123); a plurality of crushing rods (132) are fixedly arranged on the side wall of the rotating shaft (131); the length of the grinding rods (132) is suitable for the arrangement of the side wall of the lower sliding plate (121); a pushing structure (2) is fixedly arranged at the extending end of the rotating shaft (131); the ground soil falls into the liquid spraying cavity (123) and is sprayed into the stir-frying cavity (14) through the accumulation pushing structure (2), and the accumulation pushing structure (2) releases microbial liquid into the soil.
3. The microbial remediation soil treatment system for heavy metal contaminated soil of claim 2, wherein: the push structure (2) comprises a semicircular block (21); the semicircular block (21) is correspondingly arranged in the liquid sprinkling cavity (123), and the side wall of the semicircular block (21) is arranged in a gap with the inner wall of the liquid sprinkling cavity (123); the extending end of the rotating shaft (131) is correspondingly and fixedly connected to the middle of the semicircular block (21), and one end, fixed with the semicircular block (21), of the rotating shaft (131) is of an elastic structure; a limiting ring edge (124) is fixedly arranged on the inner edge of the liquid sprinkling cavity (123) in the circumferential direction; the surface of the limiting ring edge (124) is correspondingly limited on the edge of the semicircular block (21); a convex block (125) is fixedly arranged between the position, which is contacted with the semicircular block (21), on the limit ring edge (124); a vibration device is arranged in the lug (125);
a plurality of blanking holes (211) are formed in the semicircular block (21) in a penetrating mode, and the blanking holes (211) gradually decrease towards one end of the edge of the semicircular block (21); the plurality of blanking holes (211) are arranged at intervals in the circumferential direction; a plurality of notches (126) are annularly formed in the edge of the liquid sprinkling cavity (123); a plurality of notches (126) are arranged corresponding to the edge of the semicircular block (21); the soil is sprinkled into the stir-frying cavity (14) through the blanking hole (211) and the gap (126).
4. The microbial remediation soil treatment system for heavy metal contaminated soil of claim 3, wherein: a liquid accumulation chamber (212) is formed in the semicircular block (21); the liquid accumulation chamber (212) is communicated with the bacteria liquid storage box through a conduit in the rotating shaft (131); a plurality of seepage holes (22) are formed in the curved surface of the semicircular block (21) and the inner wall of the blanking hole (211); in the process of soil leakage, the rotating shaft (131) drives the semicircular block (21) to rotate and disperse in the soil, and the bacteria liquid in the liquid accumulation chamber (212) leaks out through the leakage hole (22) and contacts with the leaked soil.
5. The microbial remediation soil treatment system for heavy metal contaminated soil of claim 2, wherein: the bottom of the stir-frying cavity (14) is of a downward convex semicircular shape; the inner wall of the stir-frying cavity (14) is provided with a sliding rail (141) in a winding way; the sliding rails (141) are arranged in an up-and-down mode at intervals at the bottom of the stir-frying cavity (14); the slide rail (141) is correspondingly clamped in the stirring structure (3); the stirring structures (3) are suitable for the arrangement of the sliding rails (141) at intervals; the stirring ends of the stirring structures (3) are correspondingly stirred in the soil in the stir-frying cavity (14) in an up-and-down surrounding manner;
the stirring structure (3) comprises a mounting block (31); one side of the mounting block (31) is fixed on an inner sliding device of the sliding rail (141); the bottom of the mounting block (31) is fixedly provided with a connecting strip (32); an arc-shaped strip block (33) is fixed at one end of the connecting strip (32) far away from the mounting block (31); the mounting block (31) drives the arc-shaped strip block (33) to circularly move along the track of the sliding rail (141) through the connecting strip (32); the arc-shaped strip blocks (33) are suitable for being arranged on the bottom surface of the stir-frying cavity (14), and the arc-shaped strip blocks (33) move circularly in an up-and-down alternating mode to stir soil and bacterial liquid.
6. The microbial remediation soil treatment system for heavy metal contaminated soil of claim 5, wherein: one end of the arc-shaped strip block (33) far away from the connecting strip (32) is gradually reduced, and one side of the arc-shaped strip block (33) in the rotating direction is of a curved surface type; an air cavity (331) is formed in the arc-shaped strip block (33); one side wall of the air cavity (331) corresponding to the surface of the arc-shaped strip block (33) is of an elastic structure, and a plurality of elastic bulges (332) are fixedly arranged on the side wall of the elastic structure of the air cavity (331); the air cavity (331) is communicated with the air pump through an air pipe in the connecting strip (32); the intermittent pressurization in the air cavity (331) causes a plurality of elastic bulges (332) to bulge; a plurality of arc type strip piece (33) is corresponding stirs in soil, the corresponding intermittent type nature of elastic bulge (332) is shoulder in soil.
7. The microbial remediation soil treatment system for heavy metal contaminated soil of claim 6, wherein: the side wall of the other side of the arc-shaped strip block (33) opposite to the curved surface is provided with a sprinkling structure (4); the distributing structure (4) comprises a swinging strip (41); the swing strip (41) is suitable for the track arrangement of the arc-shaped strip block (33); the swinging device on the side wall of the arc-shaped strip block (33) is in driving connection with the swinging strip (41); a liquid guide pipe (411) is arranged inside the swing strip (41); the liquid guide pipe (411) is communicated with the bacteria liquid storage chamber on the arc-shaped strip block (33) through a connecting hole; a plurality of dividing sheets (42) are fixedly arranged on one side of the swing strip (41) far away from the arc-shaped strip block (33); the plurality of dividing sheets (42) are arranged along the extending track of the swinging strip (41) at intervals; the edge position of the dividing sheet (42) is a cutting edge; a liquid seepage interval (421) is arranged inside the dividing sheet (42); the liquid seepage section (421) is communicated with the liquid guide pipe (411); a plurality of liquid seepage holes (422) are formed in the side wall of the dividing sheet (42); when the arc-shaped strip blocks (33) move and stir in soil, the bacteria liquid in the liquid seepage interval (421) seeps out through the liquid seepage holes (422) and is mixed into the soil.
8. The microbial remediation soil treatment system for heavy metal contaminated soil of claim 7, wherein: the bottom of the stir-frying cavity (14) is provided with a semi-circular bottom shell (142); the semicircular bottom shell (142) is correspondingly detachably mounted at the bottom of the stir-frying cavity (14); the arc-shaped strip block (33) is correspondingly arranged on the inner wall of the semi-circular bottom shell (142); one end of the semicircular bottom shell (142) is hinged with the bottom of the stir-frying cavity (14); a fixed block (143) is fixedly arranged at the other end edge of the semicircular bottom shell (142); a matching block (144) is fixedly arranged on the side wall of the bottom of the stir-frying cavity (14) corresponding to the fixing block (143); when the fixed block (143) corresponds to the matching block (144), the fixed block (143) is fixedly connected with the matching block (144) through bolts;
a supporting ring block (145) is fixedly arranged at the bottom edge of the stir-frying cavity (14) in the circumferential direction; and a plurality of supporting legs (146) are fixedly arranged at the bottom of the supporting ring block (145) at circumferential intervals.
9. The method for treating a system for remediating heavy metal contaminated soil by microorganisms as set forth in any one of claims 1 to 8, wherein the first step comprises: adding the ground soil into a stirring cavity (13) through a feeding hole (111), and stirring and loosening the soil with one side being blocked through the mutual cooperation of grinding rods (132); then the soil is introduced into the liquid spraying cavity (123) through the lower leakage opening (122);
the second step is as follows: the rotating shaft (131) drives the semicircular block (21) to rotate, and the liquid collecting chamber (212) correspondingly seeps bacteria liquid to the surface of the semicircular block (21) through the seepage hole (22); when the soil is guided by the semicircular block (21) to move dispersedly, the seeped bacteria liquid is correspondingly mixed into the soil;
the third step: the soil leaked from the liquid sprinkling cavity (123) falls into the stir-frying cavity; the arc-shaped strip blocks (33) move in an up-and-down mode relatively to the annular direction and stir the soil; and in the stirring process, the dividing pieces (42) on the swing strips (41) at one side of the arc-shaped strip blocks (33) are correspondingly divided into the soil, and the bacteria liquid seeped out from the dividing pieces (42) is correspondingly mixed into the soil.
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| WO2021012693A1 (en) * | 2019-07-25 | 2021-01-28 | 南京大学环境规划设计研究院集团股份公司 | Remediation apparatus for soil having mixed copper and nickel heavy metal pollution and use method thereof |
| CN112897682A (en) * | 2021-01-25 | 2021-06-04 | 唐霞芬 | Biological contact sewage treatment system and sewage treatment method thereof |
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| WO2021012693A1 (en) * | 2019-07-25 | 2021-01-28 | 南京大学环境规划设计研究院集团股份公司 | Remediation apparatus for soil having mixed copper and nickel heavy metal pollution and use method thereof |
| CN211194400U (en) * | 2019-09-21 | 2020-08-07 | 陕西新意达建材产业发展有限公司 | Concrete mixer for building |
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