CN114314859A - Method for treating pollution by permeation type reaction wall - Google Patents
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- CN114314859A CN114314859A CN202111647704.4A CN202111647704A CN114314859A CN 114314859 A CN114314859 A CN 114314859A CN 202111647704 A CN202111647704 A CN 202111647704A CN 114314859 A CN114314859 A CN 114314859A
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000000945 filler Substances 0.000 claims abstract description 63
- 244000005700 microbiome Species 0.000 claims abstract description 26
- 230000004888 barrier function Effects 0.000 claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 230000008859 change Effects 0.000 claims abstract description 15
- 238000002161 passivation Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000003385 bacteriostatic effect Effects 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 47
- 230000035699 permeability Effects 0.000 claims description 40
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 claims description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 230000033116 oxidation-reduction process Effects 0.000 claims description 9
- 239000012459 cleaning agent Substances 0.000 claims description 7
- 230000007547 defect Effects 0.000 claims description 7
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
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- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 3
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Abstract
The invention relates to the technical field of soil and underground water pollution treatment, in particular to a method for treating pollution by a permeable reactive barrier, which comprises the following steps: installing a monitoring assembly to monitor the active filler in the reaction wall and the operation parameters of the downstream water body of the reaction wall in real time; judging whether the active filler in the reaction wall is passivated or not according to the change state of the operation parameters, and if passivation occurs, performing depassivation treatment on the reaction wall; judging whether the active filler in the reaction wall is blocked by gas or not according to the change state of the operation parameters, and if so, conducting gas guide treatment on the reaction wall; and judging whether the content of the microorganisms in the reaction wall is greater than a preset value of the microorganisms according to the change state of the operation parameters, and if so, performing bacteriostatic treatment on the reaction wall. The method has the advantages that problems occurring in the operation process of the reaction wall are monitored in real time, corresponding solutions are made in time, the reaction wall failure caused by various factors can be accurate, and the reaction wall can stably operate for a long time.
Description
Technical Field
The invention relates to the technical field of soil and underground water pollution treatment, in particular to a method for treating pollution by a permeable reactive barrier.
Background
The permeable reactive barrier technology is that a wall filled with active filler is installed under the polluted site to form a passive reactive area to intercept or remove pollutants in underground water. In the prior art, when a reaction wall body is built by a biological adhesive filling method, biological adhesive used in the building process is remained in the built wall body, so that the integral permeability coefficient is reduced, and whether further removal is needed is monitored and judged. Along with the continuous increase of the operation time of the reaction wall, the interception and treatment capacity of the reaction wall on pollutants is greatly reduced, and finally the reaction wall fails.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the pollution treatment capability of the permeable reactive barrier in the prior art is obviously reduced or even fails along with the lengthening of the running time, thereby providing a method for treating pollution by the permeable reactive barrier.
In order to solve the technical problem, the invention provides a method for treating pollution by a permeable reactive barrier, which comprises the following steps:
installing monitoring components in the reaction wall and at the downstream of the reaction wall to monitor the active filler in the reaction wall and the operation parameters of the water body at the downstream of the reaction wall in real time;
judging whether the active filler in the reaction wall is passivated or not according to the change state of the operation parameters, and if passivation occurs, performing depassivation treatment on the reaction wall;
judging whether the active filler in the reaction wall is blocked by gas or not according to the change state of the operation parameters, and if so, conducting gas guide treatment on the reaction wall;
and judging whether the content of the microorganisms in the reaction wall is greater than a preset value of the microorganisms according to the change state of the operation parameters, and if so, performing bacteriostatic treatment on the reaction wall.
Optionally, the operating parameter is one or more of hexavalent chromium concentration, pH, temperature, groundwater level and flow rate, oxidation reduction potential, resistivity, biochemical oxygen demand, chemical oxygen demand, product gas content, permeability coefficient.
Optionally, the product gas content is a nitrogen content and/or a methane content and/or a hydrogen content.
Optionally, the method further comprises: and after the reaction wall is built, if the permeability coefficient of the reaction wall is smaller than the preset permeability range, injecting biological enzyme into the reaction wall.
Optionally, the method further comprises: after the reaction wall is built, if the permeability coefficient of the reaction wall is larger than the preset permeability range and the concentration of hexavalent chromium is larger than the preset concentration range, judging that the reaction wall at the corresponding detection position has a defect, and repairing the defect part.
Optionally, during the operation of the reaction wall, if the oxidation-reduction potential in the reaction wall exceeds a preset potential range and the concentration of hexavalent chromium at the downstream of the reaction wall rises to exceed the preset concentration range, determining that the active filler in the reaction wall is passivated;
and when the passivation of the active filler in the reaction wall is judged, filling a filler cleaning agent into the reaction wall until the oxidation-reduction potential is changed to a preset range, and the concentration of the downstream hexavalent chromium of the reaction wall is changed to a preset concentration range, so that the depassivation treatment is completed.
Optionally, during the operation of the reaction wall, if the concentration of hexavalent chromium at the downstream of the reaction wall rises to exceed a preset concentration range, and the gas content of the product in the reaction wall is unchanged, the permeability coefficient is reduced, and the pH value is increased, determining that the active filler in the reaction wall is passivated;
and when the passivation of the active filler in the reaction wall is judged, filling a filler cleaning agent into the reaction wall until the concentration of the hexavalent chromium at the downstream of the reaction wall is changed to be within a preset concentration range, and finishing the depassivation treatment.
Optionally, during the operation of the reaction wall, if the concentration of hexavalent chromium at the downstream of the reaction wall rises to exceed a preset concentration range, the gas content of the product in the reaction wall increases, and the permeability coefficient decreases, it is determined that gas blockage exists in the active filler;
and when the existence of gas blockage in the active filler is judged, extracting and guiding gas to the reaction wall until the concentration of the downstream hexavalent chromium of the reaction wall is changed to be within a preset concentration range, the content of the product gas in the reaction wall is reduced, and the permeability coefficient is restored to be within the preset permeability range, so that the gas guiding treatment is completed.
Optionally, during the operation of the reaction wall, if the concentration of hexavalent chromium at the downstream of the reaction wall rises to exceed a preset concentration range, the biochemical oxygen demand in the reaction wall increases, the chemical oxygen demand increases, and the permeability coefficient decreases, determining that the content of microorganisms in the wall is greater than a preset microorganism value;
and when the content of the microorganisms in the reaction wall is judged to be larger than the preset value of the microorganisms, a bacteriostatic agent is injected into the reaction wall to finish bacteriostatic treatment.
The technical scheme of the invention has the following advantages:
1. the invention provides a method for treating pollution by a permeable reactive barrier, which comprises the following steps: installing monitoring components in the reaction wall and at the downstream of the reaction wall to monitor the active filler in the reaction wall and the operation parameters of the water body at the downstream of the reaction wall in real time; judging whether the active filler in the reaction wall is passivated or not according to the change state of the operation parameters, and if passivation occurs, performing depassivation treatment on the reaction wall; judging whether the active filler in the reaction wall is blocked by gas or not according to the change state of the operation parameters, and if so, conducting gas guide treatment on the reaction wall; and judging whether the content of the microorganisms in the reaction wall is greater than a preset value of the microorganisms according to the change state of the operation parameters, and if so, performing bacteriostatic treatment on the reaction wall.
By monitoring the operation of the reaction wall and the water body at the downstream of the reaction wall in real time, the reaction wall does not need to be excavated in the inspection process, and the wall body is not damaged. The method can monitor the problems occurring in the operation process of the reaction wall in real time and make corresponding solutions in time. The reactive barrier can accurately avoid the failure of the reactive barrier caused by the factors of the passivation or inactivation of the active filler, the blockage of the pores in the active filler by gas, the blockage of the pores in the active filler by microorganisms and the like, so that the reactive barrier can monitor and treat the problems in the operation process in time, can stably operate for a long time, and prolongs the service life of the reactive barrier.
2. In the method for treating pollution of the permeable reaction wall, if the concentration of hexavalent chromium at the downstream of the reaction wall rises to exceed the preset concentration range, the content of product gas in the reaction wall is unchanged, the permeability coefficient is reduced, and the pH value is increased during the operation of the reaction wall, the active filler in the reaction wall is judged to be passivated; and when the passivation of the active filler in the reaction wall is judged, filling a filler cleaning agent into the reaction wall until the concentration of the hexavalent chromium at the downstream of the reaction wall is changed to be within a preset concentration range, and finishing the depassivation treatment. Carry out real time monitoring to the reaction wall operation through monitoring subassembly, when handling reactive filler in the reaction wall, the operating parameter who utilizes to monitor, control the processing step, can accomplish the processing procedure when the operating parameter who monitors returns normal level, realized the accurate processing to the reaction wall, when guaranteeing the treatment effect, the waste of filler cleaner when having avoided handling, reduce the use of medicament, prevent that the medicament from too much permeating soil and groundwater from causing the influence.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a bio-packed permeable reaction wall according to an embodiment of the present invention.
Description of reference numerals: 1. a one-way vent pipe; 2. an active filler; 3. circulating the gas guide pipe; 4. a circulating gas guide branch pipe; 5. an isolation cover body.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 shows a permeable reactive barrier provided in this embodiment, which includes: hold the pond, locate active filler 2, circulation air duct 3 and the isolation lid 5 in holding the pond.
The inside of the containing tank is filled with an active filler 2. Circulation air duct 3 buries underground in active filler 2, and circulation air duct 3 is provided with the multiunit along the length direction interval of holding the pond. Keep apart lid 5 and set up 2 upsides at active filler, circulation air duct 3 runs through and keeps apart lid 5 and set up.
A plurality of circulating air guide branch pipes 4 are axially arranged on the circulating air guide pipe 3 at intervals, the circulating air guide branch pipes 4 are communicated with the circulating air guide pipe 3, and the circulating air guide branch pipes 4 at the same height are uniformly distributed along the circumferential direction of the circulating air guide pipe 3. The air guide branch is arranged in a downward inclination way. Keep apart still to run through on the lid 5 and be provided with one-way permeability cell 1, one-way permeability cell 1 extends towards active filler 2 along vertical direction, installs gaseous check valve or one-way ventilated membrane in order to realize one-way ventilative in one-way permeability cell 1, makes gas can only outwards flow in the reaction wall, and air or rainwater outside the reaction wall can not get into from one-way permeability cell and obtain in the wall body.
In order to improve the stability of the reaction wall during long-term operation and the precision degree of pollution control, a plurality of monitoring assemblies are installed in the pipe cavity of the circulating air guide branch pipe embedded in the active filler 2. The monitoring component is internally provided with monitoring equipment such as a microorganism electrode, a temperature sensor, a water level meter, a flow velocity velocimeter, a potentiometer probe, a PH composite electrode and the like so as to monitor parameters such as pH, temperature, groundwater level and flow velocity, oxidation-reduction potential, resistivity, permeability coefficient and the like in the active filler 2 in real time.
The method for treating pollution by using the permeable reactive barrier provided by the embodiment comprises the following steps:
and installing monitoring components in the active filler in the reaction wall and the underground water at the downstream of the reaction wall so as to monitor the operation parameters of the active filler in the reaction wall and the water at the downstream of the reaction wall in real time. In this embodiment, the monitoring assembly is installed in the inner cavity of the circulating air guide branch pipe. Along the extension direction of the reaction wall, one circulating gas guide pipe 3 is arranged every 10-20 meters, and the specific interval distance can be determined according to the actual conditions of soil and underground water of a construction site. A peristaltic pump is arranged at the top of a circulating air duct arranged in underground water, and the underground water is periodically and quantitatively pumped to detect partial indexes. The permeable reactive wall is provided with a one-way vent pipe and a circulating gas-guide pipe, wherein a micro bubble collector is distributed in the circulating gas-guide pipe, and when gas cannot be led out in time through the one-way vent pipe, an extraction method is adopted, after gas-liquid separation, the gas is discharged, and then liquid is injected back into the active filler of the reactive wall.
The operating parameters include hexavalent chromium concentration, pH, temperature, groundwater level and flow rate, oxidation-reduction potential, resistivity, biochemical oxygen demand, chemical oxygen demand, product gas content, and permeability coefficient. Wherein the product gas content is nitrogen content and methane content and hydrogen content. And judging the wall condition by comprehensively analyzing the data monitored in real time. If the construction condition does not reach the standard, a quick remedial measure is taken; in the operation process of the reaction wall, the operation state of each section of wall body is comprehensively judged by monitoring various indexes in real time, and all or part of the wall body is correspondingly processed according to specific problems. Signals of the monitoring components can be transmitted to the monitoring and early warning system in a centralized mode, monitoring data are uploaded to the online control platform in real time, if indexes of local areas exceed set normal range values, the system automatically gives an alarm, and segmented maintenance can be conducted on the reaction wall with abnormal indexes in a manual mode or an automatic mode after authorization.
And in the initial stage of operation after the reaction wall is built, if the permeability coefficient of the reaction wall in a certain area is detected to be smaller than the preset permeability range, judging that more biogums used for supporting the side wall of the accommodating pool in the building process are remained in the active filler of the reaction wall, wherein the biogums block the pores of the active filler to influence the permeability of the reaction wall. At the moment, biological enzyme is injected into the reaction wall through the circulating gas-guide tube, so that the degradation process of the biological glue is accelerated, and the influence of the biological glue on the permeability coefficient of the reaction wall is eliminated.
And at the initial stage of finishing the operation of the reaction wall construction, if the permeability coefficient of the reaction wall is greater than the preset permeability range and the concentration of hexavalent chromium is greater than the preset concentration range, judging that the reaction wall at the corresponding detection position has defects, directly flowing water after the water flow is not purified by the reaction wall, and then arranging a partition board or constructing a patch at the defect part for repairing.
During the long-term operation of the reaction wall:
and judging whether the active filler in the reaction wall is passivated or not according to the change state of the operation parameters, and if passivation occurs, performing depassivation treatment on the reaction wall. Specifically, during the operation of the reaction wall, if the oxidation-reduction potential in the reaction wall exceeds the preset potential range and the concentration of hexavalent chromium at the downstream of the reaction wall rises to exceed the preset concentration range, it is determined that the active filler in the reaction wall is passivated. When the passivation of the active filler in the reaction wall is judged, a filler cleaning agent is injected into the reaction wall through the circulating gas guide pipe until the oxidation-reduction potential is changed to a preset range, and the concentration of the downstream hexavalent chromium of the reaction wall is changed to a preset concentration range, so that the passivation removal treatment is completed. During the operation of the reaction wall, if the concentration of the hexavalent chromium at the downstream of the reaction wall rises to exceed the preset concentration range, and the gas content of the product in the reaction wall is unchanged, the permeability coefficient is reduced, and the pH value is increased, the active filler in the reaction wall is judged to be passivated; when the reactive filler in the reaction wall is passivated, filling a filler cleaning agent into the reaction wall through the circulating gas guide pipe until the concentration of the hexavalent chromium at the downstream of the reaction wall is changed to be within a preset concentration range, and finishing depassivation treatment.
And judging whether the active filler in the reaction wall is blocked by gas or not according to the change state of the operation parameters, and if so, conducting gas guide treatment on the reaction wall. Specifically, during the operation of the reaction wall, if the concentration of hexavalent chromium at the downstream of the reaction wall rises to exceed a preset concentration range, the gas content of a product in the reaction wall is increased, and the permeability coefficient is reduced, it is determined that gas blockage exists in the active filler; when the active filler is judged to have gas blockage, the reaction wall is extracted and guided by the circulating gas guide pipe until the concentration of the downstream hexavalent chromium of the reaction wall is changed to be within a preset concentration range, the gas content of the product in the reaction wall is reduced, and the permeability coefficient is restored to be within the preset permeability range, so that gas guiding treatment is completed.
And judging whether the content of the microorganisms in the reaction wall is greater than a preset value of the microorganisms according to the change state of the operation parameters, and if so, performing bacteriostatic treatment on the reaction wall. Specifically, during the operation of the reaction wall, if the concentration of hexavalent chromium at the downstream of the reaction wall rises to exceed a preset concentration range, the biochemical oxygen demand in the reaction wall increases, the chemical oxygen demand increases, and the permeability coefficient decreases, the content of microorganisms in the wall is judged to be greater than the preset value of the microorganisms; and when the content of the microorganisms in the reaction wall is judged to be larger than the preset value of the microorganisms, the bacteriostat is injected into the reaction wall through the circulating gas guide pipe, when the concentration of the hexavalent chromium at the downstream of the reaction wall returns to the normal level, the biochemical oxygen demand and the chemical oxygen demand in the wall body of the reaction wall are reduced to the normal level, and the permeability coefficient is recovered, the content of the microorganisms is reduced, the injection of the bacteriostat is stopped, and the bacteriostat treatment is finished.
Under the prerequisite of guaranteeing the treatment effect, through the operational aspect of real time monitoring reaction wall, monitor respectively a plurality of parts of reaction wall simultaneously, carry out the accurate location of pertinence to the wall body and restore when restoreing, the segmentation is restoreed the wall body and can be saved the processing cost more than 45%. The reactive barrier can accurately avoid the reactive barrier from losing efficacy caused by the factors of the passivation or inactivation of the active filler, the blockage of the pores in the active filler by gas, the blockage of the pores in the active filler by microorganisms and the like, so that the reactive barrier can monitor and treat the problems in the operation process in time, and the service life of the reactive barrier can be prolonged to 2.5 times of the original service life under the operation method.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. A method for treating pollution by a permeable reactive barrier is characterized by comprising the following steps:
installing monitoring components in the reaction wall and at the downstream of the reaction wall to monitor the active filler in the reaction wall and the operation parameters of the water body at the downstream of the reaction wall in real time;
judging whether the active filler in the reaction wall is passivated or not according to the change state of the operation parameters, and if passivation occurs, performing depassivation treatment on the reaction wall;
judging whether the active filler in the reaction wall is blocked by gas or not according to the change state of the operation parameters, and if so, conducting gas guide treatment on the reaction wall;
and judging whether the content of the microorganisms in the reaction wall is greater than a preset value of the microorganisms according to the change state of the operation parameters, and if so, performing bacteriostatic treatment on the reaction wall.
2. The method of treating pollution by an osmotic reaction wall of claim 1, wherein the operating parameter is one or more of hexavalent chromium concentration, pH, temperature, groundwater level and flow rate, oxidation-reduction potential, resistivity, biochemical oxygen demand, chemical oxygen demand, product gas content, and permeability coefficient.
3. The method for controlling pollution of a permeable reactive wall according to claim 2, wherein the product gas content is nitrogen content and/or methane content and/or hydrogen content.
4. The method for treating pollution by using the permeable reactive wall according to any one of claims 1 to 3, further comprising the following steps: and after the reaction wall is built, if the permeability coefficient of the reaction wall is smaller than the preset permeability range, injecting biological enzyme into the reaction wall.
5. The method for treating pollution by using the permeable reactive wall according to any one of claims 1 to 3, further comprising the following steps: after the reaction wall is built, if the permeability coefficient of the reaction wall is larger than the preset permeability range and the concentration of hexavalent chromium is larger than the preset concentration range, judging that the reaction wall at the corresponding detection position has a defect, and repairing the defect part.
6. The method for treating pollution by an osmotic reaction wall according to any one of claims 1 to 3, wherein during the operation of the reaction wall, if the redox potential in the reaction wall exceeds a preset potential range and the concentration of hexavalent chromium downstream of the reaction wall rises beyond a preset concentration range, it is determined that the active filler in the reaction wall is passivated;
and when the passivation of the active filler in the reaction wall is judged, filling a filler cleaning agent into the reaction wall until the oxidation-reduction potential is changed to a preset range, and changing the concentration of the downstream hexavalent chromium of the reaction wall to a preset concentration range to finish the depassivation treatment.
7. The method for treating pollution by using the permeable reactive barrier according to any one of claims 1 to 3, wherein during the operation of the reactive barrier, if the concentration of hexavalent chromium downstream of the reactive barrier rises to exceed a preset concentration range, and the content of product gas in the reactive barrier is unchanged, the permeability coefficient is reduced, and the pH value is increased, the reactive filler in the reactive barrier is judged to be passivated;
and when the passivation of the active filler in the reaction wall is judged, filling a filler cleaning agent into the reaction wall until the concentration of the hexavalent chromium at the downstream of the reaction wall is changed to be within a preset concentration range, and finishing the depassivation treatment.
8. The method for treating pollution by an osmotic reaction wall according to any one of claims 1 to 3, wherein during the operation of the reaction wall, if the concentration of hexavalent chromium downstream of the reaction wall rises to exceed a preset concentration range, and the content of product gas in the reaction wall increases and the permeability coefficient decreases, it is determined that gas blockage exists in the active filler;
and when the existence of gas blockage in the active filler is judged, extracting and guiding gas to the reaction wall until the concentration of the downstream hexavalent chromium of the reaction wall is changed to be within a preset concentration range, the content of the product gas in the reaction wall is reduced, and the permeability coefficient is restored to be within the preset permeability range, so that the gas guiding treatment is completed.
9. The method for treating pollution by using an osmotic reaction wall according to any one of claims 1 to 3, wherein during the operation of the reaction wall, if the concentration of hexavalent chromium downstream of the reaction wall rises beyond a preset concentration range, and the biochemical oxygen demand, the chemical oxygen demand and the permeability coefficient in the reaction wall increase, the content of microorganisms in the wall is judged to be greater than a preset microorganism value;
and when the content of the microorganisms in the reaction wall is judged to be larger than the preset value of the microorganisms, a bacteriostatic agent is injected into the reaction wall to finish bacteriostatic treatment.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116609841A (en) * | 2023-07-19 | 2023-08-18 | 北京建工环境修复股份有限公司 | Discontinuous permeation reaction wall operation and maintenance detection method based on complex resistivity signals |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070297858A1 (en) * | 2006-06-27 | 2007-12-27 | James Imbrie | Method for remediating a contaminated site |
| CN101119942A (en) * | 2004-12-20 | 2008-02-06 | 墨道什大学 | Microbial biocementation |
| CN103184037A (en) * | 2011-12-29 | 2013-07-03 | 中国石油化工股份有限公司 | Bio-enzyme solid-free completion fluid |
| CN109775862A (en) * | 2019-01-30 | 2019-05-21 | 中国环境科学研究院 | A kind of permeable reaction wall and underground water pollution biology in situ renovation method |
| CN210915560U (en) * | 2019-09-16 | 2020-07-03 | 内蒙古美成生态工程有限公司 | Permeable reactive barrier applied to repairing of underground water heavy metal Cr6+ in tailing reservoir |
| CN212151982U (en) * | 2019-12-30 | 2020-12-15 | 东华理工大学 | Groundwater pollution permeable reaction wall simulation prosthetic devices |
| CN212954583U (en) * | 2019-12-11 | 2021-04-13 | 北京高能时代环境技术股份有限公司 | System for repairing hexavalent chromium polluted groundwater |
| CN113480284A (en) * | 2021-06-09 | 2021-10-08 | 山东大学 | Cement-based pollutant blocking grouting material and preparation method thereof |
-
2021
- 2021-12-29 CN CN202111647704.4A patent/CN114314859A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101119942A (en) * | 2004-12-20 | 2008-02-06 | 墨道什大学 | Microbial biocementation |
| US20070297858A1 (en) * | 2006-06-27 | 2007-12-27 | James Imbrie | Method for remediating a contaminated site |
| CN103184037A (en) * | 2011-12-29 | 2013-07-03 | 中国石油化工股份有限公司 | Bio-enzyme solid-free completion fluid |
| CN109775862A (en) * | 2019-01-30 | 2019-05-21 | 中国环境科学研究院 | A kind of permeable reaction wall and underground water pollution biology in situ renovation method |
| CN210915560U (en) * | 2019-09-16 | 2020-07-03 | 内蒙古美成生态工程有限公司 | Permeable reactive barrier applied to repairing of underground water heavy metal Cr6+ in tailing reservoir |
| CN212954583U (en) * | 2019-12-11 | 2021-04-13 | 北京高能时代环境技术股份有限公司 | System for repairing hexavalent chromium polluted groundwater |
| CN212151982U (en) * | 2019-12-30 | 2020-12-15 | 东华理工大学 | Groundwater pollution permeable reaction wall simulation prosthetic devices |
| CN113480284A (en) * | 2021-06-09 | 2021-10-08 | 山东大学 | Cement-based pollutant blocking grouting material and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| THE INTERSTATE TECHNOLOGY & REGULATORY COUNCIL PRB: TECHNOLOGY UPDATE TEAM: "土力学原理", vol. 2018, 电子科技大学出版社, pages: 55 - 75 * |
| 程功弼等: "《土壤修复工程管理与实务》", 31 March 2019, pages: 107 * |
| 赵景联等: "《环境修复工程》", 31 March 2020, pages: 438 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116609841A (en) * | 2023-07-19 | 2023-08-18 | 北京建工环境修复股份有限公司 | Discontinuous permeation reaction wall operation and maintenance detection method based on complex resistivity signals |
| CN116609841B (en) * | 2023-07-19 | 2023-09-15 | 北京建工环境修复股份有限公司 | Discontinuous permeation reaction wall operation and maintenance detection method based on complex resistivity signals |
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