CN107457271A - A kind of repairing method of microorganism of heavy-metal contaminated soil - Google Patents
A kind of repairing method of microorganism of heavy-metal contaminated soil Download PDFInfo
- Publication number
- CN107457271A CN107457271A CN201710931126.4A CN201710931126A CN107457271A CN 107457271 A CN107457271 A CN 107457271A CN 201710931126 A CN201710931126 A CN 201710931126A CN 107457271 A CN107457271 A CN 107457271A
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- China
- Prior art keywords
- microorganism
- reactor
- soil
- heavy
- volatilization gas
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Classifications
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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
Abstract
The invention discloses a kind of repairing method of microorganism of heavy-metal contaminated soil,Including biological reaction apparatus body,Reactor is provided with biological reaction apparatus body,Sucking pump,Volatilization gas purging line,Agitator,Nutrient supply pipeline,Microorganism enters pipeline,Volatilization gas controls blower fan,Closure,Monitor,Depositing reservoir,It is mounted with that nutrient supply pipeline enters pipeline with microorganism in the side of reactor,The nutriment needed to the delivered inside microorganism of reactor and Institute of Micro-biology,The agitator on closure is constantly by microorganism simultaneously,Nutriment and the soil of heavy metal pollution are stirred,Microorganism is set to be sufficiently mixed with soil,Accelerate the degraded of microorganism heavy metal,Reactor takes sealed processing,Blower fan is controlled to be oriented discharge by volatilization gas by gas caused by reaction,Avoid pernicious gas from evaporateing into air to damage human body.
Description
Technical field
The present invention relates to technical field of land improvement, specially a kind of repairing method of microorganism of heavy-metal contaminated soil.
Background technology
The recovery technique of heavy-metal contaminated soil mainly has a conventional method and the major class of biological restoration two, and conventional method is main
Have：Heavy metal pollution of soil and soil replacement method, immobilization and stabilisation, chemical cleaning method, chemical reduction method, electro reclamation, but these methods
Somewhat expensive, soil pollution are due to that the harmful substance contained in soil is excessive, have exceeded the self-purification capacity of soil, so as to cause
Composition of the soil, 26S Proteasome Structure and Function are changed, and harmful substance is built up in soil, heavy metal pollution of soil mainly wraps
The significant elements of bio-toxicity such as mercury (Hg), cadmium (Cd), lead (Pb), chromium (Cr) and metalloid arsenic (As) are included, and have certain poison
Property zinc (Zn), copper (Cu), the element such as nickel (Ni), vertical distribution poor mobility, holdup time in soil be long, can only
The transformation and migration of form occurs, it is impossible to be degraded by microorganisms." Itai-itai diseases " and " minamata disease " that occur in history precisely due to
Heavy metal pollution and pathogenic typical case.Therefore, exploring effective restorative procedure of heavy metal pollution of soil turns into the task of top priority.
At present, heavy metal pollution of soil governance way mainly has two kinds, first, changing presence shape of the heavy metal in soil
State, it is set to switch to stable state by activated state；Second, heavy metal is removed from soil.Method mainly has gongwu chemical method, bag
Include：Heavy metal pollution of soil, complexometry, electronic chemical method, heat treating process etc. are rinsed, be not suitable for the larger soil of contaminated area；It is biological prosthetic
Method includes：Phytoremediation, microorganism remediation and animal reparation etc., plant and lower animal repairing method to the effect of soil remediation not
It is too notable；Microorganism remediation utilizes the certain micro-organisms heavy metal in soil that there is absorption, precipitation, oxidation and reduction etc. to make
With so as to reduce the toxicity of heavy metal in soil.
The present invention is relevant with soil improvement, especially with regard to a kind of repairing method of microorganism of heavy-metal contaminated soil.
The content of the invention
It is an object of the invention to provide a kind of repairing method of microorganism of heavy-metal contaminated soil, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the present invention provides following technical scheme：A kind of microorganism remediation of heavy-metal contaminated soil
Method, including biological reaction apparatus body, the biological reaction apparatus body are provided with reactor, set above the reactor
There is closure, the bottom of reactor is provided with connecting pipe, and the centre of connecting pipe is provided with sucking pump, the other end of the connecting pipe
Provided with depositing reservoir.
Preferably, the left side side wall of the reactor is provided with nutrient supply pipeline, the nutrient supply pipeline
Lower section enters pipeline provided with microorganism, and the bottom of the reactor is inverted circular cone.
Preferably, agitator is provided with the left of the upper surface of the closure, the bottom of the agitator is provided with stirring vane,
The side of the agitator is provided with volatilization gas purging line, monitor, one end of the volatilization gas purging line and sealing
Lid connection, the other end of volatilization gas purging line are provided with volatilization gas control blower fan.
Preferably, the depositing reservoir takes sealed design.
Preferably, a kind of repairing method of microorganism of heavy-metal contaminated soil, comprises the following steps：
A, the soil containing metallic pollution is placed into reactor, the closure of reactor is shut；
B, nutriment is provided to inside reactor by the nutrient supply pipeline on the left of reactor, while passes through micro- life
Thing enters pipeline and the microorganism reacted with heavy metal is provided to the inside of reactor；
C, the reaction of the heavy metal in the microorganism and soil of monitor moment monitoring inside reactor, and heavy metal
Palliating degradation degree, while the agitator on closure constantly stirs soil, by nutrients, microorganism, soil, sufficiently mixing is stirred
Mix；
D, by the degradation reaction of certain time, volatilization gas controls blower fan will by the volatilization gas purging line of connection
Caused gas discharges reactor；
E, soil is discharged into clear by the sucking pump on the pipeline that will pass through reactor bottom by the soil that biological respinse has been degraded
The good soil of degradation treatment and degradation product are carried out resolution process by clear pond, depositing reservoir, then by the degradation material of degradation treatment with
Biological prosthetic good soil separates and discharges depositing reservoir.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention is polluted using microbial degradation, is recovered the original soil function of soil and is recovered the nutrient of soil,
No chemicals degraded heavy metal is taken, it is more environmentally-friendly；
(2) in the present invention, the agitator on closure is constantly by the mud of microorganism, nutriment and heavy metal pollution
Soil is stirred, and microorganism is sufficiently mixed with soil, accelerates the degraded of microorganism heavy metal；
(3) in the present invention, reactor takes sealed processing, and wind is controlled by volatilization gas by gas caused by reaction
Machine is oriented discharge, avoids pernicious gas from evaporateing into air and human body is damaged.
Brief description of the drawings
Fig. 1 is the biological reaction apparatus body construction schematic diagram of the present invention.
In figure：1st, biological reaction apparatus body；2nd, reactor；3rd, sucking pump；4th, volatilization gas purging line；5th, agitator；
6th, nutrient supply pipeline；7th, microorganism enters pipeline；8th, volatilization gas control blower fan；9th, closure；10th, monitor；11st, it is clear
Clear pond.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme applied to the present invention in example carries out clear, complete
Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of protection of the invention.
Referring to Fig. 1, the present invention provides a kind of technical scheme：A kind of repairing method of microorganism of heavy-metal contaminated soil,
Including biological reaction apparatus body 1, biological reaction apparatus body 1 is provided with reactor 2, and the left side side wall of reactor 2 is provided with
Nutrient supply pipeline 6, the lower section of nutrient supply pipeline 6 enter pipeline 7 provided with microorganism, and the bottom of reactor 2 is inversion
Circular cone, the top of reactor 2 is provided with closure 9, and the bottom of reactor 2 is provided with connecting pipe, and the centre of connecting pipe is provided with
Sucking pump 3, the other end of connecting pipe are provided with depositing reservoir 11, and depositing reservoir 11 is taken sealed design, avoided outside the thing inside pond
Let out, or other microorganisms of air enter depositing reservoir 11 and caused dead for the microorganism for heavy metal of degrading.
In the present invention, agitator 5 is provided with the left of the upper surface of closure 9, the bottom of agitator 5 is provided with stirring vane, led to
Cross the driving stirring vane of agitator 5 sufficiently to be mixed microorganism, soil, nutriment, accelerate microorganism in soil
Heavy metal degraded, the side of agitator 5 be provided with volatilization gas purging line 4, monitor 10, volatilization gas purging line 4
One end be connected with closure 9, the other end of volatilization gas purging line 4 is provided with volatilization gas control blower fan 8, volatilization gas control
Blower fan 8 processed will.
A kind of repairing method of microorganism of heavy-metal contaminated soil comprises the following steps：
A, the soil containing metallic pollution is placed into reactor 2, the closure 9 of reactor 2 is shut；
B, passed through simultaneously to nutriment is provided inside reactor 2 by the nutrient supply pipeline 6 in the left side of reactor 2
Microorganism enters pipeline 7 and the microorganism reacted with heavy metal is provided to the inside of reactor 2；
C, the reaction of the heavy metal in the microorganism and soil inside the moment of monitor 10 monitoring reactor 2, and a huge sum of money
The palliating degradation degree of category, while the agitator 5 on closure 9 constantly stirs soil, nutrients, microorganism, soil is sufficient
Mix；
D, by the degradation reaction of certain time, volatilization gas control volatilization gas purging line 4 of the blower fan 8 by connection
Caused gas is discharged into reactor 2；
E, soil is discharged into clear by the sucking pump on the pipeline that will pass through reactor bottom by the soil that biological respinse has been degraded
The good soil of degradation treatment and degradation product are carried out resolution process by clear pond, depositing reservoir, then by the degradation material of degradation treatment with
Biological prosthetic good soil separates and discharges depositing reservoir 11.
The present invention is polluted using microbial degradation, is recovered the original soil function of soil and is recovered the nutrient of soil, adopts
No chemicals degraded heavy metal is taken, it is more environmentally-friendly；Agitator on closure is constantly by microorganism, nutriment and a huge sum of money
Belong to the soil polluted to be stirred, microorganism is sufficiently mixed with soil, accelerate the degraded of microorganism heavy metal；Reactor
Sealed processing is taken, controls blower fan to be oriented discharge by volatilization gas by gas caused by reaction, avoids harmful gas
Body evaporate into air and human body is damaged.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of repairing method of microorganism of heavy-metal contaminated soil, including biological reaction apparatus body (1), it is characterised in that：
The biological reaction apparatus body (1) is provided with reactor (2), and the top of the reactor (2) is provided with closure (9), reaction
The bottom of device (2) is provided with connecting pipe, and the centre of connecting pipe is provided with sucking pump (3), and the other end of the connecting pipe is provided with clear
Clear pond (11).
A kind of 2. repairing method of microorganism of heavy-metal contaminated soil according to claim 1, it is characterised in that：It is described anti-
The left side side wall of device (2) is answered to be provided with nutrient supply pipeline (6), the lower section of the nutrient supply pipeline (6) is provided with micro- life
Thing enters pipeline (7), and the bottom of the reactor (2) is inverted circular cone.
A kind of 3. repairing method of microorganism of heavy-metal contaminated soil according to claim 1, it is characterised in that：It is described close
Cover and agitator (5) is provided with the left of the upper surface of (9), the bottom of the agitator (5) is provided with stirring vane, the agitator
(5) side be provided with volatilization gas purging line (4), monitor (10), one end of the volatilization gas purging line (4) with it is close
(9) connection is covered, the other end of volatilization gas purging line (4) is provided with volatilization gas control blower fan (8).
A kind of 4. repairing method of microorganism of heavy-metal contaminated soil according to claim 1, it is characterised in that：It is described clear
Take sealed design in clear pond (11).
A kind of 5. repairing method of microorganism of heavy-metal contaminated soil according to claim 1, it is characterised in that：Including with
Lower step：
A, the soil containing metallic pollution is placed into reactor (2), the closure (9) of reactor (2) is shut；
B, led to simultaneously to offer nutriment inside reactor (2) by the nutrient supply pipeline (6) on the left of reactor (2)
Cross inside of the microorganism into pipeline (7) to reactor (2) and the microorganism reacted with heavy metal is provided；
C, the reaction of the heavy metal in monitor (10) moment monitoring reactor (2) internal microorganism and soil, and a huge sum of money
The palliating degradation degree of category, while the agitator (5) on closure (9) constantly stirs soil, and nutrients, microorganism, soil are filled
The mixing divided；
D, the volatilization gas purging line (4) for passing through connection by the degradation reaction of certain time, volatilization gas control blower fan (8)
By caused gas discharge reactor (2)；
E, soil is discharged into depositing reservoir by the sucking pump on the pipeline that will pass through reactor bottom by the soil that biological respinse has been degraded,
The good soil of degradation treatment and degradation product are carried out resolution process by depositing reservoir, then repair the degradation material of degradation treatment with biology
Good soil separates and discharges depositing reservoir (11) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931126.4A CN107457271A (en) | 2017-10-09 | 2017-10-09 | A kind of repairing method of microorganism of heavy-metal contaminated soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710931126.4A CN107457271A (en) | 2017-10-09 | 2017-10-09 | A kind of repairing method of microorganism of heavy-metal contaminated soil |
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| CN107457271A true CN107457271A (en) | 2017-12-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108746200A (en) * | 2018-07-11 | 2018-11-06 | 淮阴师范学院 | A kind of microorganism remediation heavy-metal contaminated soil device |
| CN110140463A (en) * | 2019-06-11 | 2019-08-20 | 陆炯 | Soil enrichment repair system and restorative procedure |
| CN112427445A (en) * | 2020-11-04 | 2021-03-02 | 中建水务环保有限公司 | Soil type high load microorganism water environment prosthetic devices |
| CN114029339A (en) * | 2021-11-09 | 2022-02-11 | 上海园林绿化建设有限公司 | System and method for restoring polluted soil by using microbial degradation technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108746200A (en) * | 2018-07-11 | 2018-11-06 | 淮阴师范学院 | A kind of microorganism remediation heavy-metal contaminated soil device |
| CN110140463A (en) * | 2019-06-11 | 2019-08-20 | 陆炯 | Soil enrichment repair system and restorative procedure |
| CN112427445A (en) * | 2020-11-04 | 2021-03-02 | 中建水务环保有限公司 | Soil type high load microorganism water environment prosthetic devices |
| CN112427445B (en) * | 2020-11-04 | 2021-06-15 | 中建水务环保有限公司 | Soil type high load microorganism water environment prosthetic devices |
| CN114029339A (en) * | 2021-11-09 | 2022-02-11 | 上海园林绿化建设有限公司 | System and method for restoring polluted soil by using microbial degradation technology |
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Application publication date: 20171212 |
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