CN113926840A - Biological pile repairing method for organic contaminated soil - Google Patents
Biological pile repairing method for organic contaminated soil Download PDFInfo
- Publication number
- CN113926840A CN113926840A CN202111226789.9A CN202111226789A CN113926840A CN 113926840 A CN113926840 A CN 113926840A CN 202111226789 A CN202111226789 A CN 202111226789A CN 113926840 A CN113926840 A CN 113926840A
- Authority
- CN
- China
- Prior art keywords
- soil
- pile
- filter screen
- biological
- driving rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mycology (AREA)
- Health & Medical Sciences (AREA)
- Botany (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a biological pile repairing method for organic contaminated soil, which comprises the following steps: crushing soil, mixing with water, and stirring to obtain soil slurry; filtering the soil slurry to remove large-particle impurities, mixing the filtered soil slurry with the bacterial residues, simultaneously doping a fertilizer, and uniformly stirring to form a mixed solution; carrying out suction filtration and concentration on the mixed solution to form a wet material, and adjusting the pH value of the wet material; piling the wet materials into a biological pile, repairing the biological pile, controlling the water content and the temperature of the biological pile in the repairing process, and aerating; and (4) turning the pile regularly, and finishing soil remediation when the content of organic pollutants in the biological pile is lower than a standard value. The method for restoring the biological heap carries out the steps of crushing, pulping and filtering on the soil in advance, removes large-particle impurities in the soil, homogenizes soil particles, is convenient for subsequent operation, avoids impurity interference, is beneficial to the implementation of a biological restoration process, shortens the restoration period and improves the thoroughness of biological restoration.
Description
Technical Field
The invention relates to the technical field of soil remediation, in particular to a method for remedying an organic contaminated soil by a biological pile.
Background
After the volatile organic pollutants enter the soil, the physical and chemical properties of the soil are changed, the soil quality is changed, the activity of soil microorganisms is influenced, harm to crops and plants is reduced, and the serious threat to the human health is caused. For the treatment of the volatile organic pollutants, methods such as physical extraction or chemical oxidation are often adopted for removal, but the treatment easily causes secondary pollution due to the occurrence of chemical reaction, and the physical extraction often causes a tailing phenomenon, so that the pollutants cannot be effectively removed.
The biological technology has the advantages of low repair cost, easy maintenance, environmental protection, no secondary pollution and the like, and is favored. For the soil polluted by high-concentration organic matters, as the concentration of organic pollutants in the soil is greatly increased, the permeability of the soil and nutrients required for the growth of microorganisms are greatly changed, so that the bioremediation is greatly limited. And the simple bioremediation has the problems of long restoration period, incomplete degradation, strict environmental condition requirements and the like.
Disclosure of Invention
The invention aims to provide a method for repairing a biological pile of organic contaminated soil, which solves the problems of long repair period, incomplete degradation, strict environmental condition requirement and the like in the existing biological repair technology.
The invention realizes the purpose through the following technical scheme:
a method for restoring a biological pile of organically-polluted soil comprises the following steps:
the method comprises the following steps: crushing soil, mixing the crushed soil with water in an amount which is 3-5 times the mass of the crushed soil, and fully stirring at the rotating speed of 800 plus materials and 1200rpm to form soil slurry;
step two: filtering the soil slurry by using a filtering device to remove large-particle impurities, mixing the filtered soil slurry with the mushroom dregs, simultaneously adding a fertilizer containing C, N, P elements, and uniformly stirring to form a mixed solution;
step three: filtering the mixed solution, concentrating to obtain wet material with water content of 22-28%, and adjusting pH of the wet material to 7-7.5;
step four: piling the wet materials into a biological pile, and repairing the biological pile, wherein the water content of the biological pile is controlled to be 22-28% and the temperature is controlled to be 50-60 ℃ in the repairing process, and meanwhile, the biological pile is aerated;
step five: and (4) turning the pile regularly, performing sampling inspection on the biological pile, and finishing soil remediation when the content of organic pollutants in the biological pile is lower than a standard value.
The filter device comprises a box body, wherein a rotatable filter screen is arranged on the box body, part of the screen surface of the filter screen is transversely intercepted in the box body and divides the box body into an upper cavity and a lower cavity, the rest screen surface of the filter screen extends out of the box body, a water inlet pipe with a water pump is arranged in the upper cavity of the box body, a partition plate is movably sleeved on the water inlet pipe, the edge of the partition plate is in sliding contact with the inner wall of the upper cavity of the box body, a driving rod is arranged on the outer side edge of the box body, the driving rod movably penetrates through the center position of the filter screen and is in threaded fit with the filter screen, and the top end of the driving rod is connected with the top surface of the partition plate through a linkage rod;
the division board moves upwards along the outer wall of the water inlet pipe when the water pressure in the cavity of the box body is increased, the linkage rod and the driving rod are synchronously driven to move upwards, and then the filter screen is driven to rotate, so that different screen surfaces of the filter screen are transversely intercepted in the box body.
The improved structure is characterized in that a first limiting stopper used for limiting the filter screen to rotate towards only one direction is arranged at the edge position of the filter screen, a rotating seat is arranged at the end part of the linkage rod, the top end of the driving rod is connected with the rotating seat in a rotatable fit manner, and a second limiting stopper used for limiting the driving rod to rotate towards only one direction is arranged on the rotating seat;
when the driving rod moves upwards, torque force is generated between the driving rod and the filter screen, the driving rod is kept to be fixed under the action of the second limiting stopper, and the filter screen rotates under the action of the torque force; when the driving rod moves downwards, torque force in the opposite direction is generated between the driving rod and the filter screen, the filter screen is kept to be fixed under the action of the first limiting stopper, and the driving rod rotates under the action of the torque force.
The improved water inlet pipe is characterized in that the water inlet pipe is sleeved with a spring piece, and the bottom end of the spring piece is connected with the top surface of the partition plate.
The further improvement is that the aperture of the filter screen is 1-3 mm.
The further improvement is that the mushroom dregs are residues of mushroom culture medium materials, and the particle size of the mushroom dregs is 1-3 mm.
The further improvement is that the mixing mass ratio of the soil slurry, the mushroom dregs and the fertilizer is 10-20:1: 1.5.
The invention has the beneficial effects that:
(1) the method for repairing the biological heap carries out the steps of crushing, pulping and filtering on the soil in advance, removes large-particle impurities in the soil, homogenizes soil particles, is convenient for subsequent operation, avoids impurity interference, is beneficial to the implementation of a biological repair process, shortens a repair period and improves the thoroughness of biological repair; practice proves that the repair period is shortened by about 40%, and the removal rate of organic pollutants is improved by about 15%.
(2) When slurry is filtered, a specially-made filtering device is adopted, the mesh surface can be automatically adjusted on the premise of no power source according to the blocking condition of a filter screen, the non-blocked mesh surface is switched into use, the blocked mesh surface is switched out, the non-stop cleaning is realized, the filtering process is always operated, and the integral filtering efficiency is obviously improved.
Drawings
FIG. 1 is a schematic view of a filter device;
in the figure: 1. a box body; 2. a filter screen; 3. a water pump; 4. a water inlet pipe; 5. a partition plate; 6. a drive rod; 7. a linkage rod; 8. a first stopper; 9. a rotating base; 10. a second stopper; 11. a spring member.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
A method for restoring a biological pile of organically-polluted soil comprises the following steps:
the method comprises the following steps: crushing soil, mixing the crushed soil with 3 times of water by mass, and fully stirring at the rotating speed of 800rpm to form soil slurry;
step two: filtering the soil slurry by using a filtering device to remove large-particle impurities, mixing the filtered soil slurry with mushroom dregs, wherein the mushroom dregs are residues of mushroom culture base materials, the particle size of the mushroom dregs is 1mm, simultaneously doping a fertilizer containing C, N, P elements, and uniformly stirring to form a mixed solution, wherein the mixed mass ratio of the soil slurry, the mushroom dregs and the fertilizer is 10:1: 1.5;
step three: carrying out suction filtration and concentration on the mixed solution to form a wet material with the water content of 22-28%, and adjusting the pH value of the wet material to 7;
step four: piling the wet materials into a biological pile, and repairing the biological pile, wherein the water content of the biological pile is controlled to be 22% and the temperature is controlled to be 50 ℃ in the repairing process, and meanwhile, the biological pile is aerated;
step five: and (4) turning the pile regularly, performing sampling inspection on the biological pile, and finishing soil remediation when the content of organic pollutants in the biological pile is lower than a standard value.
Example 2
A method for restoring a biological pile of organically-polluted soil comprises the following steps:
the method comprises the following steps: crushing soil, mixing the crushed soil with 4 times of water by mass, and fully stirring at the rotating speed of 1000rpm to form soil slurry;
step two: filtering the soil slurry by using a filtering device to remove large-particle impurities, mixing the filtered soil slurry with mushroom dregs, wherein the mushroom dregs are residues of mushroom culture base materials, the particle size of the mushroom dregs is 2mm, simultaneously doping a fertilizer containing C, N, P elements, and uniformly stirring to form a mixed solution, wherein the mixed mass ratio of the soil slurry, the mushroom dregs and the fertilizer is 15:1: 1.5;
step three: carrying out suction filtration and concentration on the mixed solution to form a wet material with the water content of 25%, and adjusting the pH value of the wet material to 7.2;
step four: piling the wet materials into a biological pile, and repairing the biological pile, wherein the water content of the biological pile is controlled to be 25% and the temperature is controlled to be 55 ℃ in the repairing process, and meanwhile, aerating the biological pile;
step five: and (4) turning the pile regularly, performing sampling inspection on the biological pile, and finishing soil remediation when the content of organic pollutants in the biological pile is lower than a standard value.
Example 3
A method for restoring a biological pile of organically-polluted soil comprises the following steps:
the method comprises the following steps: crushing soil, mixing the crushed soil with water in an amount which is 5 times the mass of the crushed soil, and fully stirring at the rotating speed of 1200rpm to form soil slurry;
step two: filtering the soil slurry by using a filtering device to remove large-particle impurities, mixing the filtered soil slurry with mushroom dregs, wherein the mushroom dregs are residues of mushroom culture base materials, the particle size of the mushroom dregs is 3mm, simultaneously doping a fertilizer containing C, N, P elements, and uniformly stirring to form a mixed solution, wherein the mixed mass ratio of the soil slurry, the mushroom dregs and the fertilizer is 20:1: 1.5;
step three: carrying out suction filtration and concentration on the mixed solution to form a wet material with the water content of 28%, and adjusting the pH value of the wet material to 7.5;
step four: piling the wet materials into a biological pile, and repairing the biological pile, wherein the water content of the biological pile is controlled to be 28% and the temperature is controlled to be 60 ℃ in the repairing process, and meanwhile, aerating the biological pile;
step five: and (4) turning the pile regularly, performing sampling inspection on the biological pile, and finishing soil remediation when the content of organic pollutants in the biological pile is lower than a standard value.
In the three embodiments, the adopted filtering device may adopt a conventional structure, and may also adopt the following structure: as shown in fig. 1, the filtering device comprises a box body 1, wherein a rotatable filter screen 2 is installed on the box body 1, part of the screen surface of the filter screen 2 is transversely intercepted in the box body 1 and divides the box body 1 into an upper cavity and a lower cavity, the rest of the screen surface of the filter screen 2 extends out of the box body 1, a water inlet pipe 4 with a water pump 3 is arranged in the upper cavity of the box body 1, a partition plate 5 is movably sleeved on the water inlet pipe 4, the edge of the partition plate 5 is in sliding contact with the inner wall of the upper cavity of the box body 1, a driving rod 6 is arranged on the outer side edge of the box body 1, the driving rod 6 movably penetrates through the central position of the filter screen 2 and is in threaded fit with the filter screen 2, and the top end of the driving rod 6 is connected with the top surface of the partition plate 5 through a linkage rod 7; the partition plate 5 moves upwards along the outer wall of the water inlet pipe 4 when the water pressure in the cavity of the box body 1 is increased, the linkage rod 7 and the driving rod 6 are synchronously driven to move upwards, and then the filter screen 2 is driven to rotate, so that different screen surfaces of the filter screen 2 are transversely intercepted in the box body 1, and the non-power-source automatic adjustment of the screen surfaces is realized.
Furthermore, a first stopper 8 for limiting the filter screen 2 to rotate only in one direction is arranged at the edge of the filter screen 2, a rotating seat 9 is arranged at the end of the linkage rod 7, the top end of the driving rod 6 is connected with the rotating seat 9 in a rotatable fit manner, and a second stopper 10 for limiting the driving rod 6 to rotate only in one direction is arranged on the rotating seat 9; when the driving rod 6 moves upwards, torque force is generated between the driving rod 6 and the filter screen 2, at the moment, the driving rod 6 is kept to be fixed under the action of the second stopper 10, and the filter screen 2 rotates under the action of the torque force; when the driving rod 6 moves downwards, torque force in the opposite direction is generated between the driving rod 6 and the filter screen 2, at the moment, the filter screen 2 is kept not to rotate under the action of the first limiting stopper 8, and the driving rod 6 rotates under the action of the torque force.
In the invention, the first limiter 8 and the second limiter 10 both adopt ratchet principle structures, namely, a tooth socket is arranged at the outer ring position of the filter screen 2 or the driving rod 6, and the filter screen 2 or the driving rod 6 can only rotate towards a certain direction through the matching of a stopping pawl and the tooth socket. In addition, the water inlet pipe 4 is sleeved with a spring part 11, and the bottom end of the spring part 11 is connected with the top surface of the partition plate 5. The aperture of the filter screen 2 is 1-3mm, preferably 2 mm.
The filtering process of the filtering device is as follows: the water pump 3 works to drive soil slurry to enter the upper cavity of the box body 1 along the water inlet pipe 4, and under the filtering action of the filter screen 2, water enters the lower cavity of the box body 1 and is finally discharged from the water outlet. When the inside of the box body 1 is filtered, part of the mesh surface of the filter screen 2 transversely intercepted in the box body 1 plays a role in filtering, when large-particle impurities are more and the part of the mesh surface is blocked, the efficiency of filtrate on the mesh surface is reduced, the water inlet pipe 4 keeps water inlet, so that slurry in the upper cavity is gradually increased, the partition plate 5 is forced to gradually move upwards along the water inlet pipe 4, the linkage rod 7 and the driving rod 6 are further driven to move upwards, torque force is generated between the driving rod 6 and the filter screen 2, at the moment, the driving rod 6 keeps non-rotating under the action of the second stopper 10, the filter screen 2 rotates under the action of the torque force, the non-blocked mesh surface is rotated for use, the blocked mesh surface is rotated out, and non-stop cleaning is realized; after the adjustment wire side, filtrating efficiency resumes, goes up the internal thick liquid of cavity and reduces gradually, and division board 5 moves down under the effect of spring part 11 this moment for drive actuating lever 6 moves down, produces the torsional forces of opposite direction between actuating lever 6 and the filter screen 2, and filter screen 2 keeps not changeing under the effect of first stopper 8 this moment, and actuating lever 6 rotates under the torsional forces effect. The design can make the filter screen 2 only rotate towards one direction all the time, avoid the blocked screen surface that just rotates out to reverse again and rotate into the box 1, be convenient for clear up. It can be seen that as long as the net surface of the filter net 2 is blocked, when effective filtration cannot be achieved, the filter net 2 can be automatically rotated and adjusted under the action of hydraulic pressure, an external power source is not needed, shutdown is not needed, and only the rotated blocked net surface needs to be cleaned in time. When the impurity content is small, the filter screen 2 will not be adjusted by rotation.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (7)
1. A method for restoring a biological pile of organically-polluted soil is characterized by comprising the following steps:
the method comprises the following steps: crushing soil, mixing the crushed soil with water in an amount which is 3-5 times the mass of the crushed soil, and fully stirring at the rotating speed of 800 plus materials and 1200rpm to form soil slurry;
step two: filtering the soil slurry by using a filtering device to remove large-particle impurities, mixing the filtered soil slurry with the mushroom dregs, simultaneously adding a fertilizer containing C, N, P elements, and uniformly stirring to form a mixed solution;
step three: filtering the mixed solution, concentrating to obtain wet material with water content of 22-28%, and adjusting pH of the wet material to 7-7.5;
step four: piling the wet materials into a biological pile, and repairing the biological pile, wherein the water content of the biological pile is controlled to be 22-28% and the temperature is controlled to be 50-60 ℃ in the repairing process, and meanwhile, the biological pile is aerated;
step five: and (4) turning the pile regularly, performing sampling inspection on the biological pile, and finishing soil remediation when the content of organic pollutants in the biological pile is lower than a standard value.
2. The method for repairing the bio-pile used for the organic contaminated soil according to claim 1, wherein the filtering device comprises a box body (1), a rotatable filter screen (2) is installed on the box body (1), part of a net surface of the filter screen (2) is transversely intercepted in the box body (1) and divides the box body (1) into an upper cavity and a lower cavity, the rest net surface of the filter screen (2) extends out of the box body (1), a water inlet pipe (4) with a water pump (3) is arranged in the upper cavity of the box body (1), a partition plate (5) is movably sleeved on the water inlet pipe (4), the edge of the partition plate (5) is in sliding contact with the inner wall of the upper cavity of the box body (1), a driving rod (6) is arranged on the outer side edge of the box body (1), the driving rod (6) movably penetrates through the central position of the filter screen (2) and is in threaded fit with the filter screen (2), the top end of the driving rod (6) is connected with the top surface of the partition plate (5) through a linkage rod (7);
the partition plate (5) moves upwards along the outer wall of the water inlet pipe (4) when the water pressure in the cavity of the box body (1) is increased, the linkage rod (7) and the driving rod (6) are synchronously driven to move upwards, and then the filter screen (2) is driven to rotate, so that different net surfaces of the filter screen (2) are transversely intercepted in the box body (1).
3. The method for restoring the bio-pile used for the organically-polluted soil according to claim 2, wherein a first stopper (8) for limiting the filter screen (2) to rotate only in one direction is arranged at the edge position of the filter screen (2), a rotating base (9) is arranged at the end part of the linkage rod (7), the top end of the driving rod (6) is connected with the rotating base (9) in a rotatable fit manner, and a second stopper (10) for limiting the driving rod (6) to rotate only in one direction is arranged on the rotating base (9);
when the driving rod (6) moves upwards, torque force is generated between the driving rod (6) and the filter screen (2), at the moment, the driving rod (6) is kept to be fixed under the action of the second limiter (10), and the filter screen (2) rotates under the action of the torque force; when the driving rod (6) moves downwards, torque force in the opposite direction is generated between the driving rod (6) and the filter screen (2), at the moment, the filter screen (2) is kept to be fixed under the action of the first limiting stopper (8), and the driving rod (6) rotates under the action of the torque force.
4. The method for restoring the bio-pile of organically-polluted soil according to claim 2, wherein the water inlet pipe (4) is sleeved with a spring member (11), and the bottom end of the spring member (11) is connected with the top surface of the separation plate (5).
5. The method for remediating the bio-pile of organically-polluted soil according to claim 2, wherein the aperture of the filter screen (2) is 1-3 mm.
6. The method for remediating a heap of organically contaminated soil as recited in claim 1, wherein the mushroom dregs are mushroom culture medium residues, and the mushroom dregs have a particle size of 1 to 3 mm.
7. The method for restoring the bio-pile of the organically-polluted soil according to claim 1, wherein the mixing mass ratio of the soil slurry, the mushroom dregs and the fertilizer is 10-20:1: 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111226789.9A CN113926840A (en) | 2021-10-21 | 2021-10-21 | Biological pile repairing method for organic contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111226789.9A CN113926840A (en) | 2021-10-21 | 2021-10-21 | Biological pile repairing method for organic contaminated soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113926840A true CN113926840A (en) | 2022-01-14 |
Family
ID=79280847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111226789.9A Withdrawn CN113926840A (en) | 2021-10-21 | 2021-10-21 | Biological pile repairing method for organic contaminated soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113926840A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH081179A (en) * | 1994-06-24 | 1996-01-09 | Tonen Corp | Biological filtering waste water treatment method and apparatus |
| CN202439206U (en) * | 2012-03-05 | 2012-09-19 | 胡兴业 | Non-stop screen exchanger for polypropylene waste material extruder by adopting sequential screwing method |
| CN202497759U (en) * | 2012-03-16 | 2012-10-24 | 东南大学 | Sewage filtering device without requiring shutdown |
| CN103008336A (en) * | 2012-12-28 | 2013-04-03 | 南京市环境保护科学研究院 | Ex-situ bioremediation method of soil contaminated by organic matters |
| CN106734169A (en) * | 2016-12-28 | 2017-05-31 | 广西博世科环保科技股份有限公司 | The processing method and processing equipment of repairing hexavalent chromium polluted soil |
| CN108838203A (en) * | 2018-07-18 | 2018-11-20 | 上海化工研究院有限公司 | A kind of contaminated soil multi-stage PCE and elution prosthetic device and technique |
-
2021
- 2021-10-21 CN CN202111226789.9A patent/CN113926840A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH081179A (en) * | 1994-06-24 | 1996-01-09 | Tonen Corp | Biological filtering waste water treatment method and apparatus |
| CN202439206U (en) * | 2012-03-05 | 2012-09-19 | 胡兴业 | Non-stop screen exchanger for polypropylene waste material extruder by adopting sequential screwing method |
| CN202497759U (en) * | 2012-03-16 | 2012-10-24 | 东南大学 | Sewage filtering device without requiring shutdown |
| CN103008336A (en) * | 2012-12-28 | 2013-04-03 | 南京市环境保护科学研究院 | Ex-situ bioremediation method of soil contaminated by organic matters |
| CN106734169A (en) * | 2016-12-28 | 2017-05-31 | 广西博世科环保科技股份有限公司 | The processing method and processing equipment of repairing hexavalent chromium polluted soil |
| CN108838203A (en) * | 2018-07-18 | 2018-11-20 | 上海化工研究院有限公司 | A kind of contaminated soil multi-stage PCE and elution prosthetic device and technique |
Non-Patent Citations (1)
| Title |
|---|
| 展漫军等: "菇渣应用于生物堆修复有机污染土壤的研究", 《江苏农业科学》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108246416A (en) | A kind of efficient pulverizing device for soil pollution processing | |
| US10875800B2 (en) | Methods and apparatuses for water treatment | |
| CN108543343B (en) | Kitchen is processing apparatus for sewage | |
| CN102086443B (en) | Microorganism combined with plant materials for removing cadmium in industrial wastewater and method for removing cadmium by using same | |
| CN113926840A (en) | Biological pile repairing method for organic contaminated soil | |
| CN108892306A (en) | A kind of mining filter plant | |
| CN112554261A (en) | River course device of decontaminating | |
| CN208485765U (en) | A kind of water pollution organism prosthetic device | |
| CN216191757U (en) | Novel integrated treatment device special for wetland | |
| CN215143279U (en) | Integrated organic garbage treatment device | |
| CN212652393U (en) | Heavy metal soil treatment device | |
| CN205672634U (en) | A kind of organochlorine pesticide pollution soil sanitation device prefiltration mechanism | |
| CN209619019U (en) | A kind of novel building sewage-treatment plant | |
| CN221319701U (en) | Sewage treatment device for municipal engineering | |
| CN210473188U (en) | Be applied to sewage treatment plant's solid-liquid separation equipment | |
| CN210764796U (en) | Domestic waste penetrant purifier | |
| CN110510789A (en) | A kind of Domestic waste penetrating fluid purification device | |
| CN207313258U (en) | A kind of bio-contact oxidation filtering settling pond | |
| CN220099012U (en) | Microorganism in-situ repair underwater expansion culture system | |
| CN207645956U (en) | A kind of wastewater treatment equipment | |
| CN220194126U (en) | Rural domestic sewage treatment device | |
| CN218392557U (en) | Be used for chemical industry sludge dewatering to break up device | |
| CN214767770U (en) | Landscape system organic contaminated soil prosthetic devices | |
| CN218890649U (en) | Integral type soil pollution treatment equipment | |
| CN218961917U (en) | Integrated municipal sewage and sludge treatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220114 |
|
| WW01 | Invention patent application withdrawn after publication |