CN116197228A - Be used for prosthetic automatic leaching device of heavy metal in soil - Google Patents
Be used for prosthetic automatic leaching device of heavy metal in soil Download PDFInfo
- Publication number
- CN116197228A CN116197228A CN202310013846.8A CN202310013846A CN116197228A CN 116197228 A CN116197228 A CN 116197228A CN 202310013846 A CN202310013846 A CN 202310013846A CN 116197228 A CN116197228 A CN 116197228A
- Authority
- CN
- China
- Prior art keywords
- leaching device
- reaction tank
- way
- soil
- leaching
- 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.)
- Pending
Links
- 238000002386 leaching Methods 0.000 title claims abstract description 74
- 239000002689 soil Substances 0.000 title claims abstract description 49
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 239000003814 drug Substances 0.000 claims description 29
- 239000007921 spray Substances 0.000 claims description 15
- 238000011084 recovery Methods 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 6
- 239000003153 chemical reaction reagent Substances 0.000 claims description 5
- 238000005067 remediation Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 239000010865 sewage Substances 0.000 abstract description 14
- 238000004064 recycling Methods 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000000376 reactant Substances 0.000 description 8
- 238000005406 washing Methods 0.000 description 7
- 239000008394 flocculating agent Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000013543 active substance Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021654 trace metal Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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
- B09C1/02—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses an automatic leaching device for restoring heavy metals in soil, which is used for cleaning polluted soil through an integrated leaching device, is simple to operate and convenient to use, and is connected with a sewage treatment device after the leaching device for treating and recycling sewage, so that secondary pollution to the environment is avoided, and meanwhile, water resources are saved.
Description
Technical Field
The invention belongs to the technical field of soil remediation, and particularly relates to an automatic leaching device for heavy metal remediation in soil.
Background
Soil heavy metal pollution refers to the fact that the content of trace metal elements in soil exceeds a background value due to human activities, and the content is too high caused by excessive deposition, and is generally called soil heavy metal pollution. Heavy metals refer to metals having a specific gravity of 5.0 or more, such as Fe, mn, zn, cd, hg, ni, co, etc.; as is a metalloid, but because of its chemical nature and environmental behavior many resemble heavy metals, arsenic is often included in the discussion of heavy metals, and is included directly in the heavy metal context. Because of the high levels of iron and manganese in soil, they are not generally considered as soil polluting elements, but under strong reducing conditions, the poisoning caused by iron and manganese is also of sufficient importance.
The soil leaching is a process of spraying or penetrating the leaching solution into the soil to enable the leaching solution to flow through a soil layer to be repaired, analyzing or fixing pollutants in the soil, and concentrating and recycling the flushing solution containing the pollutants. The principle of the soil leaching is that the active substances in the leaching solution are combined with heavy metals in the soil or form soluble heavy metal ions through complexation. Heavy metal ions in soil are generally transferred to leaching solution, so that the treatment capacity of the soil can be reduced, and solid-to-liquid phase transfer is realized. The efficient fixation of heavy metal ions in soil can be realized by selecting different leacheates, the migration risk is reduced, and the aim of treating polluted soil at low cost and high efficiency is further realized.
Along with strengthening the importance degree of heavy metal contaminated soil restoration work, the restoration device of different heavy metal contaminated soil constantly appears on the market, wherein most common is spray type restoration device, but wherein most restoration device structure is complicated, inconvenient user's use, needs special study or professional restoration professional use, has increased the go on the degree of difficulty of soil restoration work to conventional spray type restoration device is easy because waste water treatment is improper causes secondary pollution and the waste of water resource of environment.
Therefore, the invention aims to provide the automatic leaching device for restoring the heavy metals in the soil, which is convenient to use, simple to operate and capable of treating, recycling and reutilizing the sprayed wastewater.
Disclosure of Invention
In order to solve the technical problems, the invention provides an automatic leaching device for restoring heavy metals in soil, which cleans polluted soil through an integrated leaching device, is simple to operate and convenient to use, and is connected with a sewage treatment device after the leaching device to treat and recycle sewage, so that secondary pollution to the environment is avoided, and meanwhile, water resources are saved.
In order to achieve the technical purpose, the invention is realized by the following technical scheme: an automatic leaching device for remediation of heavy metals in soil, comprising: conveyor, leaching device, connecting pipe, reaction tank, filter press and medicine bottle;
the conveyor is connected with the leaching device in one way through a connecting pipe;
the water outlet of the leaching device is connected with the reaction tank in one way through a connecting pipe;
the overflow port of the reaction tank is connected with a recovery pipe, and the sludge discharge port at the bottom of the reaction tank is connected with a filter press in one way;
the filter pressing outlet of the filter press is connected with the recovery pipe;
the recovery pipe is connected with the inlet of the medicine bottle in one way, and the medicine bottle is connected with the leaching device and the reaction tank in one way.
Preferably, the top of the leaching device is provided with a vibrating screen, the upper top wall of the leaching device is provided with a spray header, the lower part of the spray header is provided with a crushing gear, the lower part of the leaching device is provided with a stirrer, one side of the stirrer is correspondingly provided with a mud outlet, the lower part of the stirrer is provided with a movable anti-seepage baffle and a filter screen, and the bottom of the leaching device is provided with a water outlet relative to the other side of the mud outlet;
preferably, the connecting pipe is provided with a one-way valve at each one-way connection part;
preferably, the reaction tank is arranged in a conical shape, the top wall of the reaction tank is provided with a spray header, the middle part of the reaction tank is provided with an overflow port, and the bottom part of the reaction tank is provided with a mud discharge port;
preferably, the filter press is a plate-and-frame filter press;
preferably, the reagent bottle comprises a leaching agent bottle, a reactant bottle and a flocculating agent bottle, wherein the leaching agent bottle is connected with a spray header in the leaching device in a one-way manner, the reactant bottle is connected with the bottom of the leaching device in a one-way manner, and the flocculating agent bottle is connected with the reaction tank in a one-way manner;
preferably, the inner wall of the medicament bottle is provided with a liquid level meter, the center of the interior of the medicament bottle is provided with a stirring fan, and the outlet of the medicament bottle is provided with a metering pump.
The beneficial effects of the invention are as follows:
the conveyer is carried contaminated soil to integrated leaching device feed inlet department shale shaker, can remove the back through broken gear further broken with impurity in the soil, the top shower head opens simultaneously, but the broken soil drip washing medicament of spraying simultaneously, so that soil fully drip washing, fall into agitator department afterwards, the agitator below is equipped with portable prevention of seepage baffle, treat contaminated soil and remove prevention of seepage baffle shrink after medicament intensive mixing, the muddy water that has heavy metal contaminant is through filter screen infiltration integrated leaching device lower part, reactant bottle is connected to integrated leaching device lower part, muddy water gets into the retort after the reactant is carried out the preliminary treatment, be equipped with the shower head in the retort, the flocculating agent bottle is connected to the shower head pipeline, the supernatant fluid after the flocculation gets into the recovery tube through the overflow mouth, waste water recycling is used for the preparation of medicament bottle after the mud mouth inflow board frame pressure filter press filter of lower part mud carries out medicament, the device easy operation, convenient use, can carry out treatment recycling to sewage, avoided causing secondary pollution to the environment, water resource has been practiced thrift simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the present invention;
in the drawings, the structural names represented by the reference numerals are as follows:
1-conveyor, 2-leaching device, 21-vibrating screen, 22-shower head, 23-crushing gear, 24-stirrer, 25-mud outlet, 26-movable anti-seepage baffle, 27-filter screen, 28-water outlet, 3-connecting pipe, 31-check valve, 32-recovery pipe, 4-reaction tank, 41-overflow port, 42-mud outlet, 5-filter press, 51-filter press outlet, 6-leaching agent bottle, 61-liquid level meter, 62-stirring fan, 63-metering pump, 7-reactant bottle, 8-flocculating agent bottle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, an automatic leaching device for restoring heavy metals in soil, comprising: conveyor 1, leaching device 2, connecting pipe 3, reaction tank 4, filter press 5, and medicine bottle;
at present, a spray type repairing device is common, but most of the repairing devices are complex in structure and inconvenient for users to use, special study or professional repairing professionals are required to use, the difficulty in carrying out soil repairing work is increased, and the conventional spray type repairing device is easy to cause secondary pollution of the environment and waste of water resources due to improper treatment of waste water.
In order to solve the above problems in practical use, in this embodiment, the conveyor 1 is connected to the rinsing device 2 in one way through the connecting pipe 3; the water outlet 28 of the leaching device 2 is connected with the reaction tank 4 in one way through the connecting pipe 3; the overflow port 41 of the reaction tank 4 is connected with the recovery pipe 32, and the sludge discharge port 42 at the bottom of the reaction tank 4 is connected with the filter press 5 in one way; the filter pressing outlet 51 of the filter press 5 is connected with the recovery pipe 32; the recovery pipe 32 is connected with the inlet of the medicine bottle in one way, and the medicine bottle is connected with the leaching device 2 and the reaction tank 4 in one way through the connecting pipe 3. The conveyer 1 carries heavy metal contaminated earth to leaching device 2 and carries out the drip washing, the medicament bottle carries out the medicament and adds in the drip washing process, clean earth after the drip washing is discharged through leaching device 2 lower part, and discharge the sewage after the drip washing to retort 4 through outlet 28, the precipitation treatment of sewage is carried out to the inside medicament that adds of retort 4, the supernatant flows into the recovery tube through overflow port 41, the earth that the retort 4 lower part was precipitated flows into pressure filter 5 through mud discharge port 42, pressure filter 5 carries out the reprocessing of precipitation sewage, the water after the filter pressing gets into recovery tube 32 through filter pressing export 51, the sewage after the processing flows into the medicament bottle through recovery tube 32 and recycles, the whole easy operation of device, need not professional study and can operate, and the device carries out the treatment cycle with the sewage after the drip washing and recycles, both avoided the sewage to the secondary pollution of environment, water resource has been practiced thrift.
The top of the leaching device 2 is provided with a vibrating screen 21 for screening out impurities in soil, a spray header 22 is arranged on the upper top wall of the leaching device, leaching of the soil is carried out, a crushing gear 23 is arranged on the lower portion of the spray header 22, the soil after the impurities are screened out is further crushed by the crushing gear 23 while leaching, the soil is convenient to fully leach, a stirrer 24 is arranged on the lower portion of the leaching device 2, the leached soil falls to the lower portion of the leaching device 2 for stirring, a mud outlet 25 is correspondingly formed in one side of the stirrer 24 for discharging clean soil after leaching, a movable anti-seepage baffle 26 and a filter screen 27 are arranged on the lower portion of the stirrer 24 for carrying out anti-seepage and filtering of the soil, a water outlet 28 is formed in the bottom of the leaching device 2 opposite to the mud outlet 25, and filtered water is discharged through the water outlet 28 and flows into the reaction tank 4.
The connecting pipe 3 is provided with a one-way valve 31 at each one-way joint, which is convenient for the one-way flow of sewage and medicament, prevents backflow and weakens the sewage treatment effect.
The retort 4 sets up to the taper, and the effect is better when flocculation precipitation for taper retort 4, and the roof sets up shower head 22 on the retort 4 and melts of flocculating agent, and overflow mouth 41 is seted up at the retort 4 middle part and the discharge of supernatant fluid after the flocculation precipitation is carried out, and mud discharge mouth 42 is seted up to the retort 4 bottom and the mud water mixture after the sediment is discharged to pressure filter 5.
The filter press 5 is arranged as a plate-and-frame filter press for carrying out filter pressing on the mud-water mixture and recycling filtered water.
Example 2
Based on example 1, in this embodiment, the reagent bottle includes a leaching agent bottle 6, a reactant bottle 7, and a flocculant bottle 8, the leaching agent bottle 6 is unidirectionally connected with a spray header 22 inside the leaching device 2 to deliver the leaching agent, the reactant bottle 7 is unidirectionally connected with the bottom of the leaching device 2 to deliver the reactant to the bottom of the leaching device 2 to perform preliminary reaction treatment of sewage, and the flocculant bottle 8 is unidirectionally connected with the reaction tank 4 to deliver the flocculant to the reaction tank 4.
The liquid level meter 61 is arranged on the inner wall of the medicament bottle, the stirring fan 62 is arranged at the center of the inner part of the medicament bottle, the metering pump 63 is arranged at the outlet of the medicament bottle, and the automatic proportioning of medicaments and the medicament adding to the leaching device 2 and the reaction tank 4 can be realized.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed.
Claims (7)
1. Be used for prosthetic automatic leaching device of heavy metal in soil, a serial communication port includes: conveyor, leaching device, connecting pipe, reaction tank, filter press and medicine bottle;
the conveyor is connected with the leaching device in one way through a connecting pipe;
the water outlet of the leaching device is connected with the reaction tank in one way through a connecting pipe;
the overflow port of the reaction tank is connected with a recovery pipe, and the sludge discharge port at the bottom of the reaction tank is connected with a filter press in one way;
the filter pressing outlet of the filter press is connected with the recovery pipe;
the recovery pipe is connected with the inlet of the medicine bottle in one way, and the medicine bottle is respectively connected with the leaching device and the reaction tank in one way.
2. The automatic leaching device for restoring heavy metals in soil according to claim 1, wherein the top of the leaching device is provided with a vibrating screen, the upper top wall of the leaching device is provided with a spray header, the lower part of the spray header is provided with a crushing gear, the lower part of the leaching device is provided with a stirrer, one side of the stirrer is correspondingly provided with a mud outlet, the lower part of the stirrer is provided with a movable anti-seepage baffle and a filter screen, and the bottom of the leaching device is provided with a water outlet relative to the other side of the mud outlet.
3. An automatic leaching device for the remediation of heavy metals in soil according to claim 1 wherein the connecting tube is provided with a one-way valve at each one-way junction.
4. The automatic leaching device for restoring heavy metals in soil according to claim 1, wherein the reaction tank is conical, a spray header is arranged on the upper top wall of the reaction tank, an overflow port is arranged in the middle of the reaction tank, and a sludge discharge port is arranged at the bottom of the reaction tank.
5. An automatic leaching device for the remediation of heavy metals in soil according to claim 1, wherein the filter press is configured as a plate and frame filter press.
6. The automatic leaching device for restoring heavy metals in soil according to claim 1, wherein the reagent bottles comprise leaching agent bottles, reagent bottles and flocculant bottles, the leaching agent bottles are connected with a spray header in the leaching device in a one-way manner, the reagent bottles are connected with the bottom of the leaching device in a one-way manner, and the flocculant bottles are connected with a reaction tank in a one-way manner.
7. The automatic leaching device for restoring heavy metals in soil according to claim 6, wherein the inner wall of the medicament bottle is provided with a liquid level meter, the center of the interior of the medicament bottle is provided with a stirring fan, and the outlet of the medicament bottle is provided with a metering pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310013846.8A CN116197228A (en) | 2023-01-05 | 2023-01-05 | Be used for prosthetic automatic leaching device of heavy metal in soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310013846.8A CN116197228A (en) | 2023-01-05 | 2023-01-05 | Be used for prosthetic automatic leaching device of heavy metal in soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116197228A true CN116197228A (en) | 2023-06-02 |
Family
ID=86510535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310013846.8A Pending CN116197228A (en) | 2023-01-05 | 2023-01-05 | Be used for prosthetic automatic leaching device of heavy metal in soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116197228A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN112337963A (en) * | 2020-11-05 | 2021-02-09 | 中国石油化工股份有限公司 | Method and device for removing soil cyanide |
| CN112893424A (en) * | 2019-12-04 | 2021-06-04 | 陕西千彩园林景观工程有限公司 | Soil prosthetic devices is used in gardens |
| CN215614043U (en) * | 2021-05-20 | 2022-01-25 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Soil prosthetic devices of usefulness is administered to environment |
-
2023
- 2023-01-05 CN CN202310013846.8A patent/CN116197228A/en active Pending
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|---|---|---|---|---|
| CN103316907A (en) * | 2013-06-07 | 2013-09-25 | 东江环保股份有限公司 | Heavy-metal-polluted site soil leaching remediation method and device |
| CN203750981U (en) * | 2014-02-19 | 2014-08-06 | 江苏日升环保工程有限公司 | Complete equipment for soil remediation by adopting elution method |
| CN104307868A (en) * | 2014-09-16 | 2015-01-28 | 青海省环境科学研究设计院 | Method for removing hexavalent chromium from polluted soil |
| CN204747063U (en) * | 2015-04-14 | 2015-11-11 | 桑德环境资源股份有限公司 | Drip washing repair system is reinforceed to heavy metal chromium -contaminated soil's supersound |
| CN206083405U (en) * | 2016-08-29 | 2017-04-12 | 广西博世科环保科技股份有限公司 | Can handle high load capacity heavy metal combined pollution's multistage elution system of uniting |
| CN206779146U (en) * | 2017-03-24 | 2017-12-22 | 沈阳赛思环境工程设计研究中心有限公司 | Dystopy Soil leaching prosthetic appliance |
| CN207929762U (en) * | 2017-12-13 | 2018-10-02 | 国家林业局桉树研究开发中心 | A kind of soil remediation controlling device |
| CN208033276U (en) * | 2018-01-13 | 2018-11-02 | 深圳市修远文化创意有限公司 | A kind of packaged type agricultural land soil prosthetic device |
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| CN109290351A (en) * | 2018-11-30 | 2019-02-01 | 中机国际环保科技有限公司 | Heavy-metal contaminated soil processing system and technique |
| CN112893424A (en) * | 2019-12-04 | 2021-06-04 | 陕西千彩园林景观工程有限公司 | Soil prosthetic devices is used in gardens |
| CN112337963A (en) * | 2020-11-05 | 2021-02-09 | 中国石油化工股份有限公司 | Method and device for removing soil cyanide |
| CN215614043U (en) * | 2021-05-20 | 2022-01-25 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Soil prosthetic devices of usefulness is administered to environment |
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