JP2024025592A - Device and method for restoration of cadmium-contaminated soil - Google Patents
Device and method for restoration of cadmium-contaminated soil Download PDFInfo
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- JP2024025592A JP2024025592A JP2022134076A JP2022134076A JP2024025592A JP 2024025592 A JP2024025592 A JP 2024025592A JP 2022134076 A JP2022134076 A JP 2022134076A JP 2022134076 A JP2022134076 A JP 2022134076A JP 2024025592 A JP2024025592 A JP 2024025592A
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- Prior art keywords
- soil
- assembly
- desorption
- partition plate
- central partition
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Links
- 239000002689 soil Substances 0.000 title claims abstract description 209
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000003795 desorption Methods 0.000 claims abstract description 107
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 14
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003814 drug Substances 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims description 45
- 238000005067 remediation Methods 0.000 claims description 38
- 239000003795 chemical substances by application Substances 0.000 claims description 27
- 238000006243 chemical reaction Methods 0.000 claims description 26
- 230000006378 damage Effects 0.000 claims description 22
- WLZRMCYVCSSEQC-UHFFFAOYSA-N cadmium(2+) Chemical compound [Cd+2] WLZRMCYVCSSEQC-UHFFFAOYSA-N 0.000 claims description 21
- 239000008139 complexing agent Substances 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 13
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000010668 complexation reaction Methods 0.000 claims description 6
- 229940079593 drug Drugs 0.000 claims description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 6
- 230000000536 complexating effect Effects 0.000 claims description 5
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical group OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004317 sodium nitrate Substances 0.000 claims description 3
- 235000010344 sodium nitrate Nutrition 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000013508 migration Methods 0.000 claims description 2
- 230000005012 migration Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000011109 contamination Methods 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B09C1/08—Reclamation of contaminated soil chemically
-
- 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
- B09C1/085—Reclamation of contaminated soil chemically electrochemically, e.g. by electrokinetics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
- Road Repair (AREA)
Abstract
Description
本発明は、カドミウム汚染土壌修復の技術分野に関し、具体的に、カドミウム汚染土壌を
修復する装置および方法に関する。
The present invention relates to the technical field of remediating cadmium-contaminated soil, and specifically relates to an apparatus and method for remediating cadmium-contaminated soil.
重金属であるカドミウムによる土壌汚染は、危険性が高く、毒性が強く、安定しており、
除去が困難であり、原因としては、地下貯蔵タンクからの漏出、農薬や殺虫剤の過剰使用
、埋立地からの廃棄物浸出などが挙げられ、重金属であるカドミウム汚染の修復技術とし
て、既存技術では物理的修復、化学的ドレンチング、ファイトレメディエーションが主で
ある。
既存技術で提供される薬液ドレンチ装置は、土壌表面にしか修復剤を散布できないため、
土壌の固化や外気温が高いなどの問題により、土壌修復剤が土壌内部に入りにくく、修復
効果が悪く、さらに、既存技術で提供される修復装置は移動性がないため、広い室外農業
土壌の修復処理には不都合である、などの問題がある。
Soil contamination with the heavy metal cadmium is highly dangerous, highly toxic, and stable.
Removal is difficult, and causes include leakage from underground storage tanks, excessive use of pesticides and insecticides, and waste leaching from landfills. Existing technologies are not available for remediation of cadmium contamination, a heavy metal. The main methods are physical repair, chemical drenching, and phytoremediation.
Chemical drench equipment provided by existing technology can only spray remediation agents on the soil surface;
Due to problems such as soil solidification and high outside temperature, it is difficult for soil remediation agents to penetrate into the soil, resulting in poor remediation effects.Furthermore, the remediation devices provided by existing technologies are not mobile, making it difficult to apply them to large areas of outdoor agricultural soil. There are problems such as inconvenience for repair processing.
本発明が解決しようとする技術的問題は、従来技術では室外で大規模のカドミウム汚染土
壌を現場で修復することができず、従来技術で提供された修復装置は土壌の修復効果が悪
いということである。
The technical problem that the present invention aims to solve is that the conventional technology cannot remediate large-scale cadmium-contaminated soil outdoors on-site, and the remediation devices provided by the conventional technology have poor soil remediation effects. It is.
本発明の技術的解決手段は、カドミウム汚染土壌を修復する装置であり、一端が移動車両
に接続可能な油圧制御装置、前記油圧制御装置の他端に設けられた取付フレーム、前記取
付フレームに設けられた修復装置を含み、
前記修復装置は、前記取付フレームの下方に固定的に設けられた土壌脱着アセンブリ、前
記土壌脱着アセンブリの前端に設けられた土壌破壊アセンブリ、および前記土壌脱着アセ
ンブリの後端に設けられた連合修復アセンブリを含み、
前記土壌脱着アセンブリは、前記取付フレームの下方に平行に設けられた２つの円筒状の
脱着チャンバー、前記脱着チャンバーの前端に設けられた第１破砕アセンブリ、および前
記脱着チャンバーに設けられて破砕土壌に薬剤を噴出する脱着薬剤噴出アセンブリを含み
、
前記連合修復アセンブリは２つの脱着チャンバー間に垂直に設けられた中央仕切り板、そ
れぞれ前記脱着チャンバーの外側面に設けられた２つの側面カードプレート、前記側面カ
ードプレートと中央仕切り板に設けられた電解アセンブリ、および前記中央仕切り板の真
下に水平に設けられた錯化修復アセンブリを含み、
前記側面カードプレートの前端が脱着チャンバーに固定的に接続され、後端が中央仕切り
板に近接し、前記側面カードプレートの後端と中央仕切り板間に固定接続ラックが設けら
れ、
前記電解アセンブリは、前記中央仕切り板の側面に均一かつ垂直に設けられた複数組の第
１取付溝、側面カードプレート均一に且に垂直に設けられた複数組の第２取付溝、前記第
１取付溝内に設けられたカソード電極、および前記第２取付溝内に設けられたアノード電
極を含み、
前記移動車両に前記カソード電極、アノード電極に電気的に接続された電源が設けられ、
前記錯化修復アセンブリは、前記中央仕切り板の下方に固定的に設けられた反応タンク、
前記反応タンクの前端に設けられて錯化剤を噴出可能な第２噴出器、前記反応タンクの後
端に設けられた土壌排出口、および前記反応タンク内に設けられた混合アセンブリを含み
、
前記混合アセンブリは、反応タンク内に設けられて前端が第２噴出器に近接し、後端が土
壌排出口に接続された回転軸、前記回転軸の前半分に設けられた混合攪拌器、前記回転軸
の後半分に設けられたらせん排出器、および回転軸を駆動する動力モータを含む。
本発明の一側面として、前記反応タンクはＶ字形の溝であり、前記Ｖ字形の溝の土壌に接
触する両側表面が円弧面であり、
前記Ｖ字形の溝の上端に中央仕切り板に接続された土壌バッフルが設けられる。
説明すると、土壌バッフルを設けることで電気的に修復された土壌がＶ字形の溝内に進入
し、錯化反応を促進し、重金属カドミウムを処理する。
本発明の一側面として、２つの前記側面カードプレートと中央仕切り板間に取り付けられ
た側面土壌破壊装置を含み、
前記側面土壌破壊装置は、脱着チャンバーに設けられた固定接続ラック、前記固定接続ラ
ックに設けられて側面カードプレートに平行である駆動回転軸、前記駆動回転軸に設けら
れて駆動回転軸の軸線方向に沿って均一に分布する複数の土壌破壊ターボファン、および
前記固定接続ラックに設けられて土壌破壊ターボファンを駆動するための回転モータを含
む。
説明すると、側面土壌破壊装置の土壌破壊ターボファンの回転により、電気的に修復され
た土壌を中央仕切り板に追い込み、土壌をＶ字形の溝内に進入させて、Ｖ字形の溝内での
錯化反応を促進する。
本発明の一側面として、前記脱着薬剤噴出アセンブリは、前記脱着チャンバーの内壁に設
けられて中心軸線が脱着チャンバーの中心軸線に重なり合う噴出器取付リング、前記噴出
器取付リングに均一に設けられた第１噴出器、および脱着チャンバー間に設けられて前記
第１噴出器と連通する第１動力ポンプを含み、
前記第１動力ポンプは移動車両に設けられた薬剤貯液箱に接続される。
説明すると、脱着薬剤噴出アセンブリから土壌に脱着薬剤を注入することにより、脱着薬
剤が土壌に吸着したカドミウムとともにカドミウムイオンを形成し、カドミウムと土壌を
分離し、電気的な修復により形成された大量のカドミウムイオンを中央仕切り板のカソー
ド電極に移動させ、最終的に錯化薬剤によりカドミウムイオンを処理することができる。
本発明の一側面として、前記第１噴出器の脱着薬剤の噴出方向は土壌移動方向と一致し、
説明すると、第１噴出器から噴出した脱着薬剤と土壌移動方向が一致すると、土壌により
第１噴出器の詰まりを形成し、脱着薬剤の注入に不利になることを回避することができる
。
本発明の一側面として、前記第１破砕アセンブリは、脱着チャンバーの前端材料入口に設
けられた回転リング、および前記回転リング内に設けられた回転ブレードを含み、
前記回転ブレードは土壌を駆動して脱着チャンバー内に追い込むことができる。
説明すると、回転ブレードによって土壌を破砕分解するだけでなく、土壌を押し、土壌を
脱着チャンバー内に進入させて脱着を行うこともできる。
本発明の一側面として、前記土壌破壊アセンブリは、脱着チャンバー間に水平に設けられ
たトラス接続部材、前記トラス接続部材の中央に垂直に設けられた剛性支持板、および前
記剛性支持板の前端に設けられた土壌破壊コーンを含む。
説明すると、剛性支持板を設けることで、土壌破壊コーンとトラス接続部材の距離を増加
して、土壌の効果的な破壊を確保することができる。
本発明の一側面として、前記土壌破壊コーンは、剛性支持板に設けられた前端土壌破壊部
、前記前端土壌破壊部の下端に位置して土壌を両側へ分割するための鋤刃を含む。
説明すると、鋤刃を設けることで土壌破壊コーンで破壊された土壌を土壌破壊コーンの両
側へ分割し、鋤刃によって土壌を案内することで、鋤刃両側の脱着チャンバーに十分の土
壌を進入させることができる。
本発明は、カドミウム汚染土壌を修復する装置の修復方法をさらに提供し、この方法は以
下のステップを含み：
Ｓ１、移動車両の接続
油圧制御装置を移動車両に接続し、移動車両により修復装置を修復する土壌場所に輸送し
、油圧制御装置によって修復装置を１０～１５ｃｍの深さまで土壌に進入させた後、移動
車両によって修復装置を駆動して修復場所の土壌で前進させ、土壌破壊アセンブリによっ
て土壌を両側に分割し、土壌を脱着アセンブリ内に進入させ、
Ｓ２、カドミウムの脱着
土壌脱着アセンブリの第１破砕アセンブリによって土壌を破砕処理し、破砕された土壌を
脱着チャンバーに進入させた後、脱着薬剤噴出アセンブリから脱着チャンバー内の土壌に
脱着薬剤を注入し、
ここで、脱着薬剤は硝酸ナトリウム溶液、クエン酸中の１つであり、
Ｓ３、土壌の連合修復
Ｓ３-１、連合修復アセンブリの電解アセンブリによってステップＳ２で処理された土壌
を電気的に修復し、
土壌が側面カードプレートと中央仕切り板間を通過するとき、電解電源が第１取付溝内の
カソード電極、第２取付溝内のアノード電極に通電し、カソード電極、アノード電極が電
気的に接続された後、脱着された土壌中の大量のカドミウムイオンが中央仕切り板に向か
って移動し、カドミウムイオンの電気移動を完了し、
Ｓ３-２、錯化修復アセンブリによってカドミウムイオンを錯化処理し、
中央仕切り板の下方の反応タンクはカドミウムイオン含有土壌を収集し、第２噴出器は反
応タンク内の土壌に錯化剤を注入し、回転軸が回転し、混合攪拌器は土壌と錯化剤を攪拌
・混合して、錯化剤により脱着されたカドミウムイオンを錯化処理し、最後にらせん排出
器によって錯化処理された土壌を排出し、
ここで、錯化剤はエチレンジアミン四酢酸溶液である。
The technical solution of the present invention is a device for remediating cadmium-contaminated soil, which includes a hydraulic control device that can be connected to a moving vehicle at one end, a mounting frame provided at the other end of the hydraulic control device, and a mounting frame provided on the mounting frame. including repair equipment,
The remediation device includes a soil desorption assembly fixedly provided below the mounting frame, a soil breaking assembly provided at a front end of the soil desorption assembly, and a combined remediation assembly provided at a rear end of the soil desorption assembly. including;
The soil desorption assembly includes two cylindrical desorption chambers provided in parallel below the mounting frame, a first crushing assembly provided at the front end of the desorption chamber, and a first crushing assembly provided in the desorption chamber to crush crushed soil. including a desorption drug ejection assembly that ejects the drug;
The combined repair assembly includes a central partition plate vertically provided between two desorption chambers, two side card plates respectively provided on the outer surfaces of the desorption chambers, and an electrolytic plate provided on the side card plates and the central partition plate. assembly, and a complexing repair assembly disposed horizontally beneath the central divider;
The front end of the side card plate is fixedly connected to the desorption chamber, the rear end is close to the central partition plate, and a fixed connection rack is provided between the rear end of the side card plate and the central partition plate,
The electrolytic assembly includes a plurality of sets of first mounting grooves uniformly and vertically provided on a side surface of the central partition plate, a plurality of sets of second mounting grooves uniformly and vertically provided on the side card plate, and a plurality of sets of second mounting grooves uniformly and vertically provided on the side surface of the side card plate. including a cathode electrode provided in the mounting groove and an anode electrode provided in the second mounting groove,
The moving vehicle is provided with a power source electrically connected to the cathode electrode and the anode electrode,
The complex repair assembly includes a reaction tank fixedly provided below the central partition plate;
a second ejector provided at the front end of the reaction tank and capable of ejecting a complexing agent; a soil outlet provided at the rear end of the reaction tank; and a mixing assembly provided within the reaction tank;
The mixing assembly includes: a rotating shaft disposed in the reaction tank and having a front end close to the second ejector and a rear end connected to the soil outlet; a mixing agitator disposed in the front half of the rotating shaft; It includes a helical ejector provided on the rear half of the rotating shaft and a power motor driving the rotating shaft.
As one aspect of the present invention, the reaction tank is a V-shaped groove, and both surfaces of the V-shaped groove that contact the soil are arcuate surfaces,
A soil baffle connected to a central partition plate is provided at the upper end of the V-shaped groove.
To illustrate, the provision of a soil baffle allows electrically remediated soil to enter the V-shaped groove to promote complexation reactions and dispose of the heavy metal cadmium.
One aspect of the present invention includes a lateral soil breaking device installed between the two lateral card plates and the central partition plate,
The lateral soil destruction device includes a fixed connection rack provided in the desorption chamber, a drive rotation shaft provided in the fixed connection rack parallel to the side card plate, and a drive rotation shaft provided in the drive rotation shaft in the axial direction of the drive rotation shaft. a plurality of soil destruction turbofans uniformly distributed along the soil destruction turbofans, and a rotary motor provided on the fixed connection rack for driving the soil destruction turbofans.
To explain, the rotation of the soil destruction turbo fan of the side soil destruction device drives the electrically remediated soil into the central partition plate, causes the soil to enter the V-shaped groove, and eliminates the confusion within the V-shaped groove. promotes chemical reactions.
In one aspect of the present invention, the desorption agent ejection assembly includes an ejector mounting ring provided on an inner wall of the desorption chamber and having a center axis that overlaps with a center axis of the desorption chamber; a first ejector, and a first power pump disposed between the desorption chamber and communicating with the first ejector;
The first power pump is connected to a drug storage box provided on the mobile vehicle.
To explain, by injecting the desorption agent into the soil from the desorption agent injection assembly, the desorption agent forms cadmium ions with the cadmium adsorbed on the soil, separates the cadmium from the soil, and releases a large amount of water formed by electrical remediation. The cadmium ions can be transferred to the cathode electrode of the central partition plate and finally treated with the complexing agent.
In one aspect of the present invention, the direction in which the desorption agent is ejected from the first ejector coincides with the direction of soil movement;
To explain, when the desorption agent ejected from the first ejector matches the direction of soil movement, it is possible to avoid clogging the first ejector with soil, which is disadvantageous to the injection of the desorption agent.
In one aspect of the invention, the first crushing assembly includes a rotating ring disposed at the front end material inlet of the desorption chamber, and a rotating blade disposed within the rotating ring;
The rotating blade can drive soil into the desorption chamber.
To explain, the rotary blade not only crushes and decomposes the soil, but also pushes the soil and allows the soil to enter the desorption chamber for desorption.
In one aspect of the present invention, the soil breaking assembly includes a truss connection member horizontally provided between the desorption chambers, a rigid support plate vertically provided in the center of the truss connection member, and a rigid support plate provided at a front end of the rigid support plate. Includes soil breaking cone provided.
To illustrate, by providing a rigid support plate, the distance between the soil breaking cone and the truss connection member can be increased to ensure effective breaking of the soil.
In one aspect of the present invention, the soil breaking cone includes a front end soil breaking part provided on a rigid support plate, and a plow blade located at a lower end of the front end soil breaking part for dividing soil into both sides.
To explain, by providing a plow blade, the soil destroyed by the soil destruction cone is divided into both sides of the soil destruction cone, and by guiding the soil with the plow blade, sufficient soil enters the desorption chambers on both sides of the plow blade. be able to.
The present invention further provides a method of remediating an apparatus for remediating cadmium-contaminated soil, the method comprising the following steps:
S1. Connecting the mobile vehicle Connect the hydraulic control device to the mobile vehicle, transport the repair device to the soil location to be repaired by the mobile vehicle, and after the hydraulic control device penetrates the repair device into the soil to a depth of 10-15 cm, driving the remediation device forward with the soil at the remediation site by the mobile vehicle, dividing the soil into two sides by the soil breaking assembly, and advancing the soil into the desorption assembly;
S2, cadmium desorption After the soil is crushed by the first crushing assembly of the soil desorption assembly and the crushed soil enters the desorption chamber, a desorption agent is injected into the soil in the desorption chamber from the desorption agent injection assembly;
Here, the desorption agent is one in sodium nitrate solution, citric acid;
S3, combined remediation of soil S3-1, electrically remediating the soil treated in step S2 by an electrolytic assembly of a combined remediation assembly;
When the soil passes between the side card plate and the center partition plate, the electrolytic power supply energizes the cathode electrode in the first mounting groove and the anode electrode in the second mounting groove, so that the cathode electrode and the anode electrode are electrically connected. After that, a large amount of cadmium ions in the desorbed soil move towards the central partition plate, completing the electrotransfer of cadmium ions,
S3-2, complexing cadmium ions by complexation repair assembly,
The reaction tank below the central partition plate collects the soil containing cadmium ions, the second jet injects the complexing agent into the soil in the reaction tank, the rotating shaft rotates, and the mixing agitator mixes the soil and the complexing agent. The cadmium ions desorbed by the complexing agent are complexed by stirring and mixing, and the complexed soil is finally discharged by a spiral discharger.
Here, the complexing agent is an ethylenediaminetetraacetic acid solution.
本発明は以下の有益な効果を有する。本発明はカドミウム汚染土壌を修復する装置を提供
し、油圧制御装置と移動車両を組み合わせて修復装置で大規模の農地土壌を現場でカドミ
ウム汚染を修復でき、従来技術の非現場修復方法よりも、本発明は、便利で効率的で、実
施が容易であるという利点を有する。
本発明は、土壌破壊アセンブリによって土壌を破砕および分割案内し、脱着チャンバー内
で土壌を脱着処理し、脱着薬剤で土壌に吸着したカドミウムを分離することで、カドミウ
ムの移動度を高め、側面カードプレートと中央仕切り板の傾斜設置により側面カードプレ
ートと中央仕切り板に設けられた電解アセンブリの電極距離を変化させ、土壌が側面カー
ドプレートと中央仕切り板を通過するとき、電解アセンブリの電極距離が徐々に小さくな
り、カドミウムイオン移動度が向上する。
本発明は、側面土壌破壊装置の土壌破壊ターボファンによって土壌を中央に回転させ、中
央分隔板の下方にＶ字形の溝を設けることで、中央仕切り板下方の土壌を収集し、脱着チ
ャンバーの脱着処理と電解アセンブリの電気的な修復により、Ｖ字形の溝内で大量のカド
ミウムイオンを収集でき、第２噴出器によって錯化剤を注入することでＶ字形の溝内のカ
ドミウムイオンを高効率的に錯化処理し、従来技術よりもカドミウム汚染土壌の処理品質
が向上する。
The present invention has the following beneficial effects. The present invention provides a device for remediating cadmium-contaminated soil, which combines a hydraulic control device and a mobile vehicle, and the remediation device can remediate cadmium contamination in a large scale agricultural soil on-site, which is more effective than non-in-situ remediation methods of the prior art. The invention has the advantage of being convenient, efficient, and easy to implement.
The present invention guides the soil to crush and divide by a soil breaking assembly, desorbs the soil in a desorption chamber, and separates the cadmium adsorbed on the soil with a desorption agent to increase the mobility of cadmium, and the side card plate and the inclined installation of the central partition plate changes the electrode distance of the electrolytic assembly provided on the side card plate and the central partition plate, and when the soil passes through the side card plate and the central partition plate, the electrode distance of the electrolytic assembly gradually changes. becomes smaller and improves cadmium ion mobility.
In the present invention, soil is rotated to the center by a soil destruction turbo fan of a side soil destruction device, and a V-shaped groove is provided below the central partition plate to collect the soil under the central partition plate and collect the soil in the desorption chamber. The desorption process and electrical repair of the electrolytic assembly can collect a large amount of cadmium ions in the V-shaped groove, and the second jet injects complexing agent to collect cadmium ions in the V-shaped groove with high efficiency. The treatment quality of cadmium-contaminated soil is improved compared to conventional technology.
[符号の説明]
１ 油圧制御装置
２ 取付フレーム
３ 土壌脱着アセンブリ
３０ 脱着チャンバー
３１ 第１破砕アセンブリ
３１０ 回転リング
３１１ 回転ブレード
３２ 脱着薬剤噴出アセンブリ
３２０ 噴出器取付リング
３２１ 第１噴出器
３２２ 第１動力ポンプ
４ 土壌破壊アセンブリ
４０ トラス接続部材
４１ 剛性支持板
４２ 土壌破壊コーン
４２０ 前端土壌破壊部
４２１ 鋤刃
５ 連合修復アセンブリ
５０ 中央仕切り板
５１ 側面カードプレート
５２ 電解アセンブリ
５３ 錯化修復アセンブリ
５４ 側面土壌破壊装置
５２０ 第１取付溝
５２１ 第２取付溝
５２２ 電解電源
５３０ 反応タンク
５３１ 第２噴出器
５３２ 土壌排出口
５３３ 回転軸
５３４ 土壌バッフル
５４０ 固定接続ラック
５４１ 駆動回転軸
５４２ 土壌破壊ターボファン
５４３ 回転モータ
[Explanation of symbols]
1 Hydraulic control device 2 Mounting frame 3 Soil desorption assembly 30 Desorption chamber 31 First crushing assembly 310 Rotating ring 311 Rotating blade 32 Desorption agent ejection assembly 320 Injector mounting ring 321 First injector 322 First power pump 4 Soil breaking assembly 40 Truss connection member 41 Rigid support plate 42 Soil breaking cone 420 Front end soil breaking part 421 Plow blade 5 Combined repair assembly 50 Central partition plate 51 Side card plate 52 Electrolysis assembly 53 Complex repair assembly 54 Side soil breaking device 520 First mounting groove 521 Second mounting groove 522 Electrolysis power source 530 Reaction tank 531 Second blower 532 Soil discharge port 533 Rotating shaft 534 Soil baffle 540 Fixed connection rack 541 Drive rotating shaft 542 Soil destruction turbo fan 543 Rotating motor
実施例１
図１に示すカドミウム汚染土壌を修復する装置は、一端が移動車両に接続可能な油圧制御
装置１、油圧制御装置１の他端に設けられた取付フレーム２、取付フレーム２に設けられ
た修復装置を含み、
修復装置は、取付フレーム２の下方に固定的に設けられた土壌脱着アセンブリ３、土壌脱
着アセンブリ３の前端に設けられた土壌破壊アセンブリ４、および土壌脱着アセンブリ３
の後端に設けられた連合修復アセンブリ５を含み、
図２に示すように、土壌脱着アセンブリ３は、取付フレーム２の下方に平行に設けられた
２つの円筒状の脱着チャンバー３０、脱着チャンバー３０の前端に設けられた第１破砕ア
センブリ３１、および脱着チャンバー３１に設けられて破砕土壌に薬剤を噴出する脱着薬
剤噴出アセンブリ３２を含み、
連合修復アセンブリ５は２つの脱着チャンバー３０間に垂直に設けられた中央仕切り板５
０、それぞれ脱着チャンバー３０の外側面に設けられた２つの側面カードプレート５１、
側面カードプレート５１と中央仕切り板５０に設けられた電解アセンブリ５２、および中
央仕切り板５０の真下に水平に設けられた錯化修復アセンブリ５３を含み、
側面カードプレート５１の前端が脱着チャンバー３０に固定的に接続され、後端が中央仕
切り板５０に近接し、側面カードプレート５１の後端と中央仕切り板５０間に固定接続ラ
ックが設けられ、
図３に示すように、電解アセンブリ５２は、中央仕切り板５０の側面に均一かつ垂直に設
けられた複数組の第１取付溝５２０、側面カードプレート５１均一に且に垂直に設けられ
た複数組の第２取付溝５２１、第１取付溝５２０内に設けられたカソード電極、および第
２取付溝５２１内に設けられたアノード電極を含み、
移動車両にカソード電極、アノード電極に電気的に接続された電源５２２が設けられ、
錯化修復アセンブリ５３は、中央仕切り板５０の下方に固定的に設けられた反応タンク５
３０、反応タンク５３０の前端に設けられて錯化剤を噴出可能な第２噴出器５３１、反応
タンク５３０の後端に設けられた土壌排出口５３２、および反応タンク５３０内に設けら
れた混合アセンブリを含み、
混合アセンブリは、反応タンク５３０内に設けられて前端が第２噴出器５３１に近接し、
後端が土壌排出口５３２に接続された回転軸５３３、回転軸５３３の前半分に設けられた
混合攪拌器、回転軸５３３の後半分に設けられたらせん排出器、および回転軸５３３を駆
動する動力モータを含む。
脱着薬剤噴出アセンブリ３２は、脱着チャンバー３０の内壁に設けられて中心軸線が脱着
チャンバー３０の中心軸線に重なり合う噴出器取付リング３２０、噴出器取付リング３２
０に均一に設けられた第１噴出器３２１、および脱着チャンバー３０間に設けられて第１
噴出器３２１と連通する第１動力ポンプ３２２を含み、
第１動力ポンプ３２２は移動車両に設けられた薬剤貯液箱に接続される。
第１噴出器３２１の脱着薬剤の噴出方向は土壌移動方向と一致している。
図４に示すように、第１破砕アセンブリ３１は、脱着チャンバー３０の前端材料入口に設
けられた回転リング３１０、および回転リング３１０内に設けられた回転ブレード３１１
を含み、
回転ブレード３１１は土壌を駆動して脱着チャンバー３０内に追い込むことができる。
ここで、土壌破壊アセンブリ４、回転リング３１０、第１噴出器３２１、第１動力ポンプ
３２２、動力モータ、第２噴出器５３１、混合攪拌器、らせん排出器、電解電源５２２、
油圧制御装置１はいずれも従来技術の製品であり、かつ具体的な製品モデルは本分野の当
業者が必要に応じて選択すればよい。
Example 1
The device for remediating cadmium-contaminated soil shown in FIG. 1 includes a hydraulic control device 1 that can be connected to a moving vehicle at one end, a mounting frame 2 provided at the other end of the hydraulic control device 1, and a repair device provided on the mounting frame 2. including;
The remediation device includes a soil desorption assembly 3 fixedly provided below the mounting frame 2, a soil breaking assembly 4 provided at the front end of the soil desorption assembly 3, and a soil desorption assembly 3 provided at the front end of the soil desorption assembly 3.
a combined repair assembly 5 provided at the rear end of the
As shown in FIG. 2, the soil desorption assembly 3 includes two cylindrical desorption chambers 30 provided in parallel below the mounting frame 2, a first crushing assembly 31 provided at the front end of the desorption chamber 30, and a desorption a desorption agent ejection assembly 32 disposed in the chamber 31 and configured to eject the agent into the crushed soil;
The combined repair assembly 5 includes a central partition plate 5 vertically provided between the two desorption chambers 30.
0, two side card plates 51 each provided on the outer surface of the desorption chamber 30;
It includes an electrolytic assembly 52 provided on the side card plate 51 and the central partition plate 50, and a complexing repair assembly 53 provided horizontally just below the central partition plate 50,
The front end of the side card plate 51 is fixedly connected to the detachment chamber 30, the rear end is close to the central partition plate 50, and a fixed connection rack is provided between the rear end of the side card plate 51 and the central partition plate 50,
As shown in FIG. 3, the electrolytic assembly 52 includes a plurality of sets of first mounting grooves 520 uniformly and vertically provided on the side surface of the central partition plate 50, and a plurality of sets of first mounting grooves 520 uniformly and vertically provided on the side surface card plate 51. a second mounting groove 521, a cathode electrode provided in the first mounting groove 520, and an anode electrode provided in the second mounting groove 521;
The moving vehicle is provided with a power source 522 electrically connected to the cathode electrode and the anode electrode,
The complexation repair assembly 53 includes a reaction tank 5 fixedly provided below the central partition plate 50.
30, a second ejector 531 provided at the front end of the reaction tank 530 and capable of ejecting a complexing agent, a soil outlet 532 provided at the rear end of the reaction tank 530, and a mixing assembly provided within the reaction tank 530; including;
The mixing assembly is disposed within the reaction tank 530 and has a front end adjacent to the second ejector 531;
A rotating shaft 533 whose rear end is connected to the soil discharge port 532, a mixing agitator provided in the front half of the rotating shaft 533, a spiral ejector provided in the rear half of the rotating shaft 533, and the rotating shaft 533 are driven. Includes power motor.
The desorption agent ejection assembly 32 includes an ejector attachment ring 320 that is provided on the inner wall of the desorption chamber 30 and whose center axis overlaps with the center axis of the desorption chamber 30;
0, and a first ejector 321 provided uniformly between the desorption chambers 30 and 30;
including a first power pump 322 in communication with an ejector 321;
The first power pump 322 is connected to a drug storage box provided on the mobile vehicle.
The direction in which the desorption agent is ejected from the first ejector 321 coincides with the direction of soil movement.
As shown in FIG. 4, the first crushing assembly 31 includes a rotating ring 310 provided at the front end material inlet of the desorption chamber 30, and a rotating blade 311 provided within the rotating ring 310.
including;
The rotating blade 311 can drive soil into the desorption chamber 30 .
Here, the soil breaking assembly 4, the rotating ring 310, the first ejector 321, the first power pump 322, the power motor, the second ejector 531, the mixing agitator, the spiral ejector, the electrolytic power source 522,
The hydraulic control device 1 is a product of the prior art, and a person skilled in the art may select a specific product model as necessary.
実施例２
実施例１とは以下の相違点があり、
図５に示すように、反応タンク５３０はＶ字形の溝であり、Ｖ字形の溝の土壌に接触する
両側表面が円弧面であり、
Ｖ字形の溝の上端に中央仕切り板５０に接続された土壌バッフル５３４が設けられる。
２つの側面カードプレート５１と中央仕切り板５０間に取り付けられた側面土壌破壊装置
５４を含み、
側面土壌破壊装置５４は、脱着チャンバー３０に設けられた固定接続ラック５４０、固定
接続ラック５４０に設けられて側面カードプレート５１に平行である駆動回転軸５４１、
駆動回転軸５４１に設けられて駆動回転軸５４１の軸線方向に沿って均一に分布する複数
の土壌破壊ターボファン５４２、および固定接続ラック５４０に設けられて土壌破壊ター
ボファン５４２を駆動するための回転モータ５４３を含む。
ここで、回転モータ５４３、土壌破壊ターボファン５４２はいずれも従来技術の製品であ
り、かつ具体的な製品モデルは本分野の当業者が必要に応じて選択すればよい。
Example 2
There are the following differences from Example 1,
As shown in FIG. 5, the reaction tank 530 is a V-shaped groove, and both surfaces of the V-shaped groove that contact the soil are arcuate surfaces,
A soil baffle 534 connected to the central partition plate 50 is provided at the upper end of the V-shaped groove.
It includes a side soil destruction device 54 attached between two side card plates 51 and a central partition plate 50,
The lateral soil breaking device 54 includes a fixed connection rack 540 provided in the desorption chamber 30, a drive rotation shaft 541 provided in the fixed connection rack 540 and parallel to the lateral card plate 51,
A plurality of soil destruction turbo fans 542 are provided on the drive rotation shaft 541 and uniformly distributed along the axial direction of the drive rotation shaft 541, and a plurality of soil destruction turbo fans 542 are provided on the fixed connection rack 540 for driving the soil destruction turbo fans 542. Includes a motor 543.
Here, the rotary motor 543 and the soil destruction turbo fan 542 are both products of the prior art, and a person skilled in the art may select a specific product model as necessary.
実施例３
実施例２とは以下の相違点があり、
図６に示すように、土壌破壊アセンブリ４は、脱着チャンバー３０間に水平に設けられた
トラス接続部材４０、トラス接続部材４０の中央に垂直に設けられた剛性支持板４１、お
よび剛性支持板４１の前端に設けられた土壌破壊コーン４２を含む。
土壌破壊コーン４２は、剛性支持板４１に設けられた前端土壌破壊部４２０、前端土壌破
壊部４２０の下端に位置して土壌を両側へ分割するための鋤刃４２１を含む。
Example 3
There are the following differences from Example 2,
As shown in FIG. 6, the soil breaking assembly 4 includes a truss connection member 40 provided horizontally between the desorption chambers 30, a rigid support plate 41 provided vertically in the center of the truss connection member 40, and a rigid support plate 41 provided vertically in the center of the truss connection member 40. a soil breaking cone 42 provided at the front end of the soil breaking cone 42;
The soil breaking cone 42 includes a front end soil breaking part 420 provided on the rigid support plate 41, and a plow blade 421 located at the lower end of the front end soil breaking part 420 for dividing the soil into both sides.
実施例４
西北部のある地域では、面積２３０ｍ２のカドミウム汚染土壌区画を選択し、実施例３の
装置により該カドミウム汚染土壌区画を修復し、
具体的に以下のステップを含み：
Ｓ１、接続移動車両
Ｓ１、移動車両の接続
油圧制御装置１を移動車両に接続し、移動車両により修復装置を修復する土壌場所に輸送
し、油圧制御装置１によって修復装置を１０ｃｍの深さまで土壌に進入させた後、移動車
両によって修復装置を駆動して修復場所の土壌で前進させ、土壌破壊アセンブリ４によっ
て土壌を両側に分割し、土壌を脱着アセンブリ３内に進入させ、
Ｓ２、カドミウムの脱着
土壌脱着アセンブリ３の第１破砕アセンブリ３１によって土壌を破砕処理し、破砕された
土壌を脱着チャンバー３０に進入させた後、脱着薬剤噴出アセンブリ３２から脱着チャン
バー３０内の土壌に脱着薬剤を注入し、
ここで、脱着薬剤は０．５ｍｏｌ／Ｌの硝酸ナトリウム溶液であり、土壌への注入量が０
．３Ｌ／ｋｇであり、
Ｓ３、土壌の連合修復
電解アセンブリ５２はステップＳ２で処理された土壌を電気的に修復し、
具体的には、土壌が側面カードプレート５１と中央仕切り板５０間を通過するとき、電解
電源５２２が第１取付溝５２０内のカソード電極、第２取付溝５２１内のアノード電極に
通電し、カソード電極、アノード電極が電気的に接続された後、脱着された土壌中の大量
のカドミウムイオンが中央仕切り板５０に向かって移動し、カドミウムイオンの電気移動
を完了し、
次に錯化修復アセンブリ５３はカドミウムイオンを錯化処理し、
具体的には、中央仕切り板５０の下方の反応タンク５３０はカドミウムイオン含有土壌を
収集し、第２噴出器５３１は反応タンク５３０内の土壌に錯化剤を注入し、回転軸５３３
が回転し、混合攪拌器は土壌と錯化剤を攪拌・混合して、錯化剤により脱着されたカドミ
ウムイオンを錯化処理し、最後にらせん排出器によって錯化処理された土壌を排出し、
錯化剤は具体的に０．３ｍｏｌ／Ｌのエチレンジアミン四酢酸溶液であり、土壌への注入
量が０．１Ｌ／ｋｇである。
Example 4
In a region in the northwest, a cadmium-contaminated soil plot with an area of 230 m 2 was selected, and the cadmium-contaminated soil plot was remediated using the apparatus of Example 3.
Specifically includes the following steps:
S1, connecting mobile vehicle S1, connecting hydraulic control device 1 of the mobile vehicle to the mobile vehicle, transporting the repair device to the soil location to be repaired by the mobile vehicle, and sinking the repair device into the soil to a depth of 10 cm by the hydraulic control device 1; After entry, the remediation device is driven by the mobile vehicle to advance with the soil at the remediation site, dividing the soil into two sides by the soil breaking assembly 4 and advancing the soil into the desorption assembly 3;
S2: Desorption of cadmium After the soil is crushed by the first crushing assembly 31 of the soil desorption assembly 3 and the crushed soil enters the desorption chamber 30, it is desorbed from the desorption agent injection assembly 32 to the soil in the desorption chamber 30. inject the drug,
Here, the desorption agent is a 0.5 mol/L sodium nitrate solution, and the amount of injection into the soil is 0.
．． 3L/kg,
S3, the soil combined remediation electrolytic assembly 52 electrically remediates the soil treated in step S2;
Specifically, when soil passes between the side card plate 51 and the central partition plate 50, the electrolytic power source 522 energizes the cathode electrode in the first mounting groove 520 and the anode electrode in the second mounting groove 521, and the cathode After the electrode and the anode electrode are electrically connected, a large amount of cadmium ions in the desorbed soil move toward the central partition plate 50, completing the electrical migration of cadmium ions,
Next, the complexation repair assembly 53 complexes the cadmium ions,
Specifically, the reaction tank 530 below the central partition plate 50 collects soil containing cadmium ions, the second ejector 531 injects a complexing agent into the soil in the reaction tank 530, and the rotating shaft 533 collects soil containing cadmium ions.
rotates, the mixer stirs and mixes the soil and complexing agent, complexes the cadmium ions desorbed by the complexing agent, and finally discharges the complexed soil using the spiral discharger. ,
Specifically, the complexing agent is a 0.3 mol/L ethylenediaminetetraacetic acid solution, and the amount of injection into the soil is 0.1 L/kg.
実施例５
実施例４とは以下の相違点があり、
ステップＳ１では、修復装置が土壌に進入するときの深さが１５ｃｍである。
Example 5
There are the following differences from Example 4,
In step S1, the depth at which the remediation device enters the soil is 15 cm.
実施例６
実施例４とは以下の相違点があり、
ステップＳ１では、修復装置が土壌に進入するときの深さが２０ｃｍである。
Example 6
There are the following differences from Example 4,
In step S1, the depth at which the remediation device enters the soil is 20 cm.
実施例７
実施例４とは以下の相違点があり、
ステップＳ２では、脱着薬剤は０．５ｍｏｌ／Ｌのクエン酸溶液である。
修復効果の比較
実施例４～７のカドミウム汚染区画の修復結果を比較する同時に従来技術と比較し、（従
来技術は中国発明特許ＣＮ１０４２２６６８０Ｂで開示されたカドミウム汚染土壌修復装
置および方法）、修復結果が表１に示される。
表１ 各実施例によりカドミウム汚染土壌を修復するときのカドミウム除去率
Example 7
There are the following differences from Example 4,
In step S2, the desorption agent is a 0.5 mol/L citric acid solution.
Comparison of remediation effects Comparing the remediation results of the cadmium-contaminated plots of Examples 4 to 7, and at the same time comparing them with the conventional technology (the conventional technology is the cadmium-contaminated soil remediation device and method disclosed in Chinese invention patent CN104226680B), the remediation results were It is shown in Table 1.
Table 1 Cadmium removal rate when remediating cadmium-contaminated soil according to each example
表１から分かるように、本発明の修復装置および修復方法によるカドミウム汚染土壌の修
復効果が従来技術よりもはるかに高く、かつ実施例５は最良の実施例であり、これは、実
施例５の修復深さが最適であるからであり、実験によると、土壌中のカドミウム汚染は主
に０～１５ｃｍの範囲に集中しており、これ以上修復深度を深くしても、修復効果はあま
り上がらず、むしろエネルギー消費量が増えてしまう。
As can be seen from Table 1, the remediation effect of the remediation device and remediation method of the present invention on cadmium-contaminated soil is much higher than that of the prior art, and Example 5 is the best example. This is because the remediation depth is optimal, and experiments have shown that cadmium contamination in soil is mainly concentrated in the range of 0 to 15 cm, and even if the remediation depth is made deeper than this, the remediation effect will not improve much. , rather, energy consumption increases.
Claims (9)
けられた取付フレーム（２）と、前記取付フレーム（２）に設けられた修復装置と、を含
み、
前記修復装置は、前記取付フレーム（２）の下方に固定的に設けられた土壌脱着アセンブ
リ（３）、前記土壌脱着アセンブリ（３）の前端に設けられた土壌破壊アセンブリ（４）
、および前記土壌脱着アセンブリ（３）の後端に設けられた連合修復アセンブリ（５）を
含み、
前記土壌脱着アセンブリ（３）は、前記取付フレーム（２）の下方に平行に設けられた２
つの円筒状の脱着チャンバー（３０）、前記脱着チャンバー（３０）の前端に設けられた
第１破砕アセンブリ（３１）、および前記脱着チャンバー（３１）に設けられて破砕土壌
に薬剤を噴出する脱着薬剤噴出アセンブリ（３２）を含み、
前記連合修復アセンブリ（５）は２つの脱着チャンバー（３０）間に垂直に設けられた中
央仕切り板（５０）、それぞれ前記脱着チャンバー（３０）の外側面に設けられた２つの
側面カードプレート（５１）、前記側面カードプレート（５１）と中央仕切り板（５０）
に設けられた電解アセンブリ（５２）、および前記中央仕切り板（５０）の真下に水平に
設けられた錯化修復アセンブリ（５３）を含み、
前記側面カードプレート（５１）の前端が脱着チャンバー（３０）に固定的に接続され、
後端が中央仕切り板（５０）に近接し、前記側面カードプレート（５１）の後端と中央仕
切り板（５０）間に固定接続ラックが設けられ、
前記電解アセンブリ（５２）は、前記中央仕切り板（５０）の側面に均一かつ垂直に設け
られた複数組の第１取付溝（５２０）、側面カードプレート（５１）均一に且に垂直に設
けられた複数組の第２取付溝（５２１）、前記第１取付溝（５２０）内に設けられたカソ
ード電極、および前記第２取付溝（５２１）内に設けられたアノード電極を含み、
前記移動車両に前記カソード電極、アノード電極に電気的に接続された電源（５２２）が
設けられ、
前記錯化修復アセンブリ（５３）は、前記中央仕切り板（５０）の下方に固定的に設けら
れた反応タンク（５３０）、前記反応タンク（５３０）の前端に設けられて錯化剤を噴出
可能な第２噴出器（５３１）、前記反応タンク（５３０）の後端に設けられた土壌排出口
（５３２）、および前記反応タンク（５３０）内に設けられた混合アセンブリを含み、
前記混合アセンブリは、反応タンク（５３０）内に設けられて前端が第２噴出器（５３１
）に近接し、後端が土壌排出口（５３２）に接続された回転軸（５３３）、前記回転軸（
５３３）の前半分に設けられた混合攪拌器、前記回転軸（５３３）の後半分に設けられた
らせん排出器、および回転軸（５３３）を駆動する動力モータを含む、
ことを特徴とするカドミウム汚染土壌を修復する装置。 a hydraulic control device (1) with one end connectable to a moving vehicle; a mounting frame (2) provided at the other end of the hydraulic control device (1); and a repair device provided on the mounting frame (2). , including;
The remediation device includes a soil desorption assembly (3) fixedly provided below the mounting frame (2), and a soil breaking assembly (4) provided at the front end of the soil desorption assembly (3).
, and a combined remediation assembly (5) provided at the rear end of the soil desorption assembly (3);
The soil desorption assembly (3) includes two soil desorption assemblies (3) provided below and parallel to the mounting frame (2).
two cylindrical desorption chambers (30), a first crushing assembly (31) provided at the front end of the desorption chamber (30), and a desorption agent provided in the desorption chamber (31) to eject the agent into the crushed soil; including a jetting assembly (32);
The combined repair assembly (5) includes a central partition plate (50) installed vertically between the two desorption chambers (30), and two side card plates (51) installed on the outer sides of the desorption chambers (30), respectively. ), the side card plate (51) and the central partition plate (50)
an electrolytic assembly (52) provided at the central partition plate (50), and a complexing repair assembly (53) provided horizontally beneath the central partition plate (50);
a front end of the side card plate (51) is fixedly connected to the desorption chamber (30);
a fixed connection rack is provided between the rear end of the side card plate (51) and the central partition plate (50), the rear end of which is close to the central partition plate (50);
The electrolytic assembly (52) includes a plurality of first mounting grooves (520) uniformly and vertically provided on the side surface of the central partition plate (50), and a side card plate (51) uniformly and vertically provided on the side surface of the central partition plate (50). a plurality of sets of second mounting grooves (521), a cathode electrode provided in the first mounting groove (520), and an anode electrode provided in the second mounting groove (521);
The moving vehicle is provided with a power source (522) electrically connected to the cathode electrode and the anode electrode,
The complexation repair assembly (53) includes a reaction tank (530) fixedly provided below the central partition plate (50), and is provided at the front end of the reaction tank (530) and is capable of spouting a complexing agent. a second injector (531), a soil outlet (532) provided at the rear end of the reaction tank (530), and a mixing assembly provided within the reaction tank (530);
The mixing assembly is installed in a reaction tank (530) and has a front end connected to a second injector (531).
) and whose rear end is connected to the soil discharge port (532);
a mixing agitator provided in the front half of the rotating shaft (533), a spiral ejector provided in the rear half of the rotating shaft (533), and a power motor that drives the rotating shaft (533);
A device for remediating cadmium-contaminated soil, characterized by:
面が円弧面であり、
前記Ｖ字形の溝の上端に中央仕切り板（５０）に接続された土壌バッフル（５３４）が設
けられる、ことを特徴とする請求項１に記載の装置。 The reaction tank (530) is a V-shaped groove, and both surfaces of the V-shaped groove that contact the soil are arcuate surfaces;
Device according to claim 1, characterized in that the upper end of the V-shaped groove is provided with a soil baffle (534) connected to a central partition plate (50).
土壌破壊装置（５４）を含み、
前記側面土壌破壊装置（５４）は、脱着チャンバー（３０）に設けられた固定接続ラック
（５４０）、前記固定接続ラック（５４０）に設けられて側面カードプレート（５１）に
平行である駆動回転軸（５４１）、前記駆動回転軸（５４１）に設けられて駆動回転軸（
５４１）の軸線方向に沿って均一に分布する複数の土壌破壊ターボファン（５４２）、お
よび前記固定接続ラック（５４０）に設けられて土壌破壊ターボファン（５４２）を駆動
するための回転モータ（５４３）を含む、ことを特徴とする請求項１に記載の装置。 comprising a lateral soil breaking device (54) installed between the two lateral card plates (51) and the central partition plate (50);
The lateral soil destruction device (54) includes a fixed connection rack (540) provided in the desorption chamber (30), a drive rotation axis provided in the fixed connection rack (540) and parallel to the lateral card plate (51). (541), the drive rotation shaft (541) is provided with a drive rotation shaft (541);
a plurality of soil destruction turbofans (542) uniformly distributed along the axial direction of the soil destruction turbofans (541); and a rotary motor (543) provided in the fixed connection rack (540) for driving the soil destruction turbofans (542). ) The device according to claim 1, characterized in that it comprises:
て中心軸線が脱着チャンバー（３０）の中心軸線に重なり合う噴出器取付リング（３２０
）、前記噴出器取付リング（３２０）に均一に設けられた第１噴出器（３２１）、および
脱着チャンバー（３０）間に設けられて前記第１噴出器（３２１）と連通する第１動力ポ
ンプ（３２２）を含み、
前記第１動力ポンプ（３２２）は移動車両に設けられた薬剤貯液箱に接続される、ことを
特徴とする請求項１に記載の装置。 The desorption agent ejection assembly (32) includes an ejector attachment ring (320) installed on the inner wall of the desorption chamber (30) and whose central axis overlaps the central axis of the desorption chamber (30).
), a first ejector (321) uniformly provided on the ejector attachment ring (320), and a first power pump provided between the desorption chamber (30) and communicating with the first ejector (321). (322),
2. The device of claim 1, wherein the first power pump (322) is connected to a drug reservoir provided on a mobile vehicle.
特徴とする請求項１に記載の装置。 The device according to claim 1, characterized in that the ejection direction of the desorption agent of the first ejector (321) is coincident with the soil movement direction.
た回転リング（３１０）、および前記回転リング（３１０）内に設けられた回転ブレード
（３１１）を含み、
前記回転ブレード（３１１）は土壌を駆動して脱着チャンバー（３０）内に追い込むこと
ができる、ことを特徴とする請求項１に記載の装置。 The first crushing assembly (31) includes a rotating ring (310) provided at the front end material inlet of the desorption chamber (30), and a rotating blade (311) provided within the rotating ring (310);
Device according to claim 1, characterized in that the rotating blade (311) is capable of driving soil into the desorption chamber (30).
接続部材（４０）、前記トラス接続部材（４０）の中央に垂直に設けられた剛性支持板（
４１）、および前記剛性支持板（４１）の前端に設けられた土壌破壊コーン（４２）を含
む、ことを特徴とする請求項１に記載の装置。 The soil breaking assembly (4) includes a truss connection member (40) provided horizontally between the desorption chambers (30), and a rigid support plate (40) provided vertically in the center of the truss connection member (40).
41) and a soil breaking cone (42) provided at the front end of the rigid support plate (41).
０）、前記前端土壌破壊部（４２０）の下端に位置して土壌を両側へ分割するための鋤刃
（４２１）を含む、ことを特徴とする請求項１に記載の装置。 The soil breaking cone (42) has a front end soil breaking portion (42) provided on the rigid support plate (41).
0), a plow blade (421) located at the lower end of the front soil breaking part (420) for dividing the soil into both sides.
であって、
Ｓ１、移動車両の接続
油圧制御装置（１）を移動車両に接続し、移動車両により修復装置を修復する土壌場所に
輸送し、油圧制御装置（１）によって修復装置を１０～１５ｃｍの深さまで土壌に進入さ
せた後、移動車両によって修復装置を駆動して修復場所の土壌で前進させ、土壌破壊アセ
ンブリ（４）によって土壌を両側に分割し、土壌を脱着アセンブリ（３）内に進入させる
ステップと、
Ｓ２、カドミウムの脱着
土壌脱着アセンブリ（３）の第１破砕アセンブリ（３１）によって土壌を破砕処理し、破
砕された土壌を脱着チャンバー（３０）に進入させた後、脱着薬剤噴出アセンブリ（３２
）から脱着チャンバー（３０）内の土壌に脱着薬剤を注入し、
ここで、脱着薬剤は硝酸ナトリウム溶液、クエン酸中の１つであるステップと、
Ｓ３、土壌の連合修復
Ｓ３-１、連合修復アセンブリ（５）の電解アセンブリ（５２）によってステップＳ２で
処理された土壌を電気的に修復し、
土壌が側面カードプレート（５１）と中央仕切り板（５０）間を通過するとき、電解電源
（５２２）が第１取付溝（５２０）内のカソード電極、第２取付溝（５２１）内のアノー
ド電極に通電し、カソード電極、アノード電極が電気的に接続された後、脱着された土壌
中の大量のカドミウムイオンが中央仕切り板（５０）に向かって移動し、カドミウムイオ
ンの電気移動を完了し、
Ｓ３-２、錯化修復アセンブリ（５３）によってカドミウムイオンを錯化処理し、
中央仕切り板（５０）の下方の反応タンク（５３０）はカドミウムイオン含有土壌を収集
し、第２噴出器（５３１）は反応タンク（５３０）内の土壌に錯化剤を注入し、回転軸（
５３３）が回転し、混合攪拌器は土壌と錯化剤を攪拌・混合して、錯化剤により脱着され
たカドミウムイオンを錯化処理し、最後にらせん排出器によって錯化処理された土壌を排
出するステップと、を含み、
錯化剤はエチレンジアミン四酢酸溶液である、
ことを特徴とする方法。 A method for remediating cadmium-contaminated soil using the apparatus according to any one of claims 1 to 8, comprising:
S1, Connecting the mobile vehicle Connect the hydraulic control device (1) to the mobile vehicle, transport the restoration device to the soil site to be repaired by the mobile vehicle, and use the hydraulic control device (1) to lower the restoration device into the soil to a depth of 10-15 cm. driving the remediation device by means of a mobile vehicle to advance it with the soil at the remediation site, dividing the soil into two sides by means of a soil breaking assembly (4) and advancing the soil into a desorption assembly (3); ,
S2, Desorption of Cadmium After the soil is crushed by the first crushing assembly (31) of the soil desorption assembly (3) and the crushed soil enters the desorption chamber (30), the desorption agent injection assembly (32
) into the soil in the desorption chamber (30),
wherein the desorption agent is one of sodium nitrate solution, citric acid;
S3, combined remediation of soil S3-1, electrically remediating the soil treated in step S2 by an electrolytic assembly (52) of a combined remediation assembly (5);
When soil passes between the side card plate (51) and the central partition plate (50), the electrolytic power source (522) connects the cathode electrode in the first mounting groove (520) and the anode electrode in the second mounting groove (521). After energizing and electrically connecting the cathode and anode electrodes, a large amount of cadmium ions in the desorbed soil move toward the central partition plate (50), completing the electrical migration of cadmium ions,
S3-2, complexing cadmium ions by complexation repair assembly (53);
A reaction tank (530) below the central partition plate (50) collects soil containing cadmium ions, a second injector (531) injects a complexing agent into the soil in the reaction tank (530), and a rotating shaft (
533) rotates, the mixing agitator stirs and mixes the soil and the complexing agent, complexes the cadmium ions desorbed by the complexing agent, and finally the complexed soil is removed by the spiral ejector. a step of discharging;
The complexing agent is ethylenediaminetetraacetic acid solution,
A method characterized by:
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| JP5213209B2 (en) * | 2006-05-31 | 2013-06-19 | 独立行政法人農業環境技術研究所 | Soil agitator |
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| CN103990644B (en) * | 2013-05-07 | 2016-01-20 | 辽宁山水城市园林景观有限公司 | The full-automatic contaminated soil remediation device of a kind of original position |
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| CN109848203A (en) * | 2019-03-23 | 2019-06-07 | 中国农业科学院农田灌溉研究所 | A kind of restorative procedure for Cadmium in Soil of degrading |
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