CN203400922U - Ex-situ washing remediation engineered equipment for contaminated soil - Google Patents

Ex-situ washing remediation engineered equipment for contaminated soil Download PDF

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Publication number
CN203400922U
CN203400922U CN201320194328.2U CN201320194328U CN203400922U CN 203400922 U CN203400922 U CN 203400922U CN 201320194328 U CN201320194328 U CN 201320194328U CN 203400922 U CN203400922 U CN 203400922U
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CN
China
Prior art keywords
tank
drip washing
washing tank
hydrocyclone
contaminated soil
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Expired - Lifetime
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CN201320194328.2U
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Chinese (zh)
Inventor
钟宇驰
吴振华
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ZHEJIANG TAOHUAYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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ZHEJIANG TAOHUAYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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Priority to CN201320194328.2U priority Critical patent/CN203400922U/en
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Abstract

The utility model discloses ex-situ washing remediation engineered equipment for contaminated soil, belonging to the technical field of soil remediation. The equipment mainly comprises a wet-type multistage vibrating screen, a muddy water storage tank, hydrocyclones, a dosing tank, leaching tanks, a water-washing tank, an adsorption purification tank, plate sedimentation tanks and a chamber type filter press, wherein the wet-type multistage vibrating screen, the muddy water storage tank and the 1# leaching tank are sequentially connected; the 1# hydrocyclone connects the 1# leaching tank with the 2# leaching tank, and the 2# hydrocyclone connects the 2# leaching tank with the water-washing tank; one end of the adsorption purification tank is connected with the 1# hydrocyclone while the other end of the adsorption purification tank is connected with the 2# plate sedimentation tank; one end of the 1# plate sedimentation tank is connected with the water-washing tank while the other end of the 1# plate sedimentation tank is connected with the chamber type filter press; the dosing tank is connected with the 1# and 2# leaching tanks. The equipment disclosed by the utility model has the advantages of simplicity and convenience in operation, strong controllability, wide application range, good removal effect, large handling capacity and the like. The equipment parameters can be adjusted and optimized according to actual condition, so that the equipment is applicable to remediation engineering of contaminated sites.

Description

A kind of contaminated soil heterotopic drip washing recovery project equipment
Technical field
The utility model belongs to soil remediation field, relates in particular to contaminated site soil remediation equipment.
Background technology
Along with the quickening of expanding economy and city-building speed, the change of place character is also further frequent.Many industrial enterprises move away from city successively, and original industrial land is developed as residential estate, school's land used or Gongjian's land used gradually.But work business activity for many years causes the severe contamination of plant area's soil and groundwater, and may endanger resident's health.Therefore, the repairing and treating task in pollution work enterprise place is very urgent.
At present, soil remediation method mainly contains physical restoration, chemical restoration and biological restoration etc. both at home and abroad, but some method exists the deficiencies such as cost is high, reparation is thorough, repairing efficiency is long, environmental influence is large, limits its range of application.Soil leaching recovery technique is a kind of chemical leaching technology rapidly and efficiently, is also one of soil remediation method of twentieth century end U.S. EPA recommendation.According to processing mode difference, can be divided into original position drip washing and dystopy drip washing.Original position elution method is directly eluent to be injected to soil, in downstream, leacheate is extracted to soil surface, then leacheate is processed, and so continues to carry out, until soil environment quality reaches relevant criterion.But the method is only applicable to hydraulic conductivity and is greater than 10 -3the concrete dynamic modulus of cm/s, easily permeate soil, greatly limited its range of application.Dystopy drip washing is that soil is excavated, and drops in container, adopts leacheate to clean and removes pollutant in soil, finally processes the leacheate containing pollutant.The method can be used for the repairing and treating of the contaminated soils such as heavy metal, radionuclide, petroleum hydrocarbon, polycyclic aromatic hydrocarbon, Polychlorinated biphenyls, organo-chlorine pesticide, and the scope of application is very wide, has the advantages such as repairing efficiency is short, removal efficiency is high, easy and simple to handle simultaneously.Yet, this ELUTION METHOD is applied in contaminated soil repair process, need to develop a set of suitable drip washing equipment.
At present, most of drip washing equipment of domestic-developed is also mainly for laboratory research, and if license publication number is CN202192081U, title is a kind of experimental provision of removing pollutant; License publication number is CN201579252U, and title is the drip washing removal device of PAHs in a kind of contaminated soil.These equipment are only suitable for carrying out under the ideal conditions of laboratory, it directly cannot be amplified and are applied in soil remediation engineering.License publication number is CN201848424U, and title is a kind of drip washing prosthetic appliance of contaminated soil.In this drip washing prosthetic appliance, drip washing pond only adopts mixer to mix, and the drip washing time is length and the intermittent duty of a whole set of drip washing equipment, and disposal ability is lower.Therefore, need exploitation a kind of be applicable to China's soil property feature efficient, fast, treating capacity is large, the drip washing recovery project equipment that can realize automation.
Utility model content
The purpose of this utility model is the deficiency for existing Soil leaching equipment, and a kind of contaminated soil heterotopic drip washing recovery project equipment is provided, and it can process contaminated soil efficiently, fast.
The utility model discloses a kind of contaminated soil heterotopic drip washing recovery project equipment, it is characterized in that it mainly comprises: wet type multi-stage oscillating screen, muddy water storage tank, hydrocyclone, grug feeding jar, drip washing tank, water washing tank, adsorption cleaning tank, inclined-plate clarifying basin and chamber-type press filter; Described hydrocyclone is divided into 1# hydrocyclone and 2# hydrocyclone; Described drip washing tank is divided into 1# drip washing tank and 2# drip washing tank; Described inclined-plate clarifying basin is divided into 1# inclined-plate clarifying basin and 2# inclined-plate clarifying basin; Described wet type multi-stage oscillating screen, muddy water storage tank, 1# drip washing tank are connected successively, and described 1# hydrocyclone is connected 1# drip washing tank with 2# drip washing tank, and 2# hydrocyclone is connected 2# drip washing tank with water washing tank; , described adsorption cleaning tank one end is connected with 1# hydrocyclone, and one end is connected with 2# inclined-plate clarifying basin, and described 1# inclined-plate clarifying basin one end is connected with water washing tank, and the other end is connected with chamber-type press filter, and described grug feeding jar is connected with 1#, 2# drip washing tank.
Described wet type multi-stage oscillating screen top is provided with spray system; Wet type multi-stage oscillating screen is divided into secondary, and one-level screens out the stone of > 20mm, and secondary screens out the coarse sand of 2~20mm; Described spray system at least comprises a water pump, water tank and a plurality of shower nozzle.
Described 1# hydrocyclone and 2# hydrocyclone can be isolated the fine grained that is greater than 0.02mm from soil mixed liquor.
Bilobed wheel mixer is installed in described 1# drip washing tank and 2# drip washing tank upper end, and sidewall is installed ultrasonic vibration plate; Bilobed wheel mixer is also all installed in described water washing tank and adsorption cleaning tank upper end.
Compare with existing equipment, the contaminated soil heterotopic drip washing recovery project equipment the utility model proposes adopts wet type multi-stage oscillating screen and hydrocyclone to carry out multiple fractionation to soil particle, and differentiated treatment has reduced Soil leaching and processed total amount; And stirring and ultrasonic is installed in drip washing tank simultaneously, has greatly shortened the drip washing time, improve treatment effeciency.
The utility model is for contaminated site soil remediation engineering.The feature such as that this equipment has is easy and simple to handle, controllability is strong, applied widely, removal effect is good, treating capacity is large.
accompanying drawing explanation
Below in conjunction with accompanying drawing, further illustrate this soil heterotopic drip washing prosthetic appliance.
Fig. 1 is the schematic diagram of the utility model contaminated soil heterotopic drip washing prosthetic appliance.
the specific embodiment
As shown in Figure 1, it mainly comprises wet type multi-stage oscillating screen 1, muddy water storage tank 2, hydrocyclone (8-1~8-2), grug feeding jar 10, drip washing tank (3-1~3-2), water washing tank 4, adsorption cleaning tank 9, inclined-plate clarifying basin (5-1~5-2) and chamber-type press filter 6 to the contaminated soil heterotopic drip washing prosthetic appliance of the present embodiment.Wet oscillating screen 1 has secondary screen cloth, and one-level screen cloth hole is 20mm, for removing larger stone; Secondary screen cloth hole is 2mm, removes the coarse sand of 2~20mm, yet the hole of screen cloth can be selected according to actual conditions.Fine earth soil particle suspension by Wet oscillating screen 1 is sent into drip washing tank 3-1 by pump 13-1, stirs, ultrasonic 15 mixes, and meanwhile grug feeding jar 10 is to adding medicine in drip washing tank; Pump 13-2 enters hydrocyclone 8-1 by muddy water mixed solution, and the fine earth soil particle suspension that is less than 0.02mm enters adsorption cleaning tank 9 by hydrocyclone 8-1 upper end overfall, then comes back to Wet oscillating screen 1 after inclined-plate clarifying basin 5-2; Hydrocyclone 8-1 lower end soil enters drip washing tank 3-2 to be mixed again, then enters water washing tank 4, and to reduce the content of soil Chinese medicine, the required running water of water washing tank 4 is extracted from running water storage pond 12 by pump 13-6; Soil after last drip washing, after inclined-plate clarifying basin 5-1, chamber-type press filter 6, is discharged mud cake and is transported to fixed venue through conveyer 7, backfill after natural air drying.The partially aqueous solution that lessivation produces enters in leacheate storage pond 11 temporary.The operation of complete equipment is controlled by automatic control cabinet 14.
In addition to the implementation, the utility model also has other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims (5)

1. a contaminated soil heterotopic drip washing recovery project equipment, is characterized in that it mainly comprises: wet type multi-stage oscillating screen, muddy water storage tank, hydrocyclone, grug feeding jar, drip washing tank, water washing tank, adsorption cleaning tank, inclined-plate clarifying basin and chamber-type press filter; Described hydrocyclone is divided into 1# hydrocyclone and 2# hydrocyclone; Described drip washing tank is divided into 1# drip washing tank and 2# drip washing tank; Described inclined-plate clarifying basin is divided into 1# inclined-plate clarifying basin and 2# inclined-plate clarifying basin; Described wet type multi-stage oscillating screen, muddy water storage tank, 1# drip washing tank are connected successively, and described 1# hydrocyclone is connected 1# drip washing tank with 2# drip washing tank, and 2# hydrocyclone is connected 2# drip washing tank with water washing tank; Described adsorption cleaning tank one end is connected with 1# hydrocyclone, and one end is connected with 2# inclined-plate clarifying basin, and described 1# inclined-plate clarifying basin one end is connected with water washing tank, and the other end is connected with chamber-type press filter, and described grug feeding jar is connected with 1#, 2# drip washing tank.
2. a kind of contaminated soil heterotopic drip washing recovery project equipment according to claim 1, is characterized in that described wet type multi-stage oscillating screen top is provided with spray system; Wet type multi-stage oscillating screen is divided into secondary, and one-level screens out the stone of > 20mm, and secondary screens out the coarse sand of 2~20mm.
3. a kind of contaminated soil heterotopic drip washing recovery project equipment according to claim 2, is characterized in that described spray system at least comprises a water pump, water tank and a plurality of shower nozzle.
4. a kind of contaminated soil heterotopic drip washing recovery project equipment according to claim 1, is characterized in that described 1# hydrocyclone and 2# hydrocyclone can isolate the soil particle that is greater than 0.02mm from soil mixed liquor.
5. a kind of contaminated soil heterotopic drip washing recovery project equipment according to claim 1, is characterized in that described 1# drip washing tank and 2# drip washing tank upper end installation bilobed wheel mixer, and sidewall is installed ultrasonic vibration plate; Bilobed wheel mixer is also all installed in described water washing tank and adsorption cleaning tank upper end.
CN201320194328.2U 2013-04-12 2013-04-12 Ex-situ washing remediation engineered equipment for contaminated soil Expired - Lifetime CN203400922U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320194328.2U CN203400922U (en) 2013-04-12 2013-04-12 Ex-situ washing remediation engineered equipment for contaminated soil

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Application Number Priority Date Filing Date Title
CN201320194328.2U CN203400922U (en) 2013-04-12 2013-04-12 Ex-situ washing remediation engineered equipment for contaminated soil

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103831293A (en) * 2014-02-19 2014-06-04 江苏日升环保工程有限公司 Complete equipment for soil remediation by leaching method
CN104226680A (en) * 2014-10-09 2014-12-24 常州大学 Repairing device and method for cadmium-contaminated soils
CN104475441A (en) * 2014-12-11 2015-04-01 北京建工环境修复股份有限公司 Soil washing restoration system based on reduction concentration design concept and method thereof
CN106077062A (en) * 2016-06-30 2016-11-09 华东理工大学 The method that a kind of soil slurry wash desorption and enrichment process
CN106391685A (en) * 2016-11-21 2017-02-15 河南省水文地质工程地质勘察院有限公司 Ex-situ sorting, cleaning and repairing device for chromium-polluted soil and cleaning and repairing technology using ex-situ sorting, cleaning and repairing device
CN108773943A (en) * 2018-08-22 2018-11-09 兴源环境科技股份有限公司 A kind of organophosphorus pesticide pollution soil heterotopic repair system and method
WO2019024913A1 (en) * 2017-08-04 2019-02-07 华东理工大学 Radial particle-washing device
CN108773943B (en) * 2018-08-22 2024-03-19 兴源环境科技股份有限公司 Ectopic repair system and method for organophosphorus pesticide contaminated soil

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103831293A (en) * 2014-02-19 2014-06-04 江苏日升环保工程有限公司 Complete equipment for soil remediation by leaching method
CN104226680A (en) * 2014-10-09 2014-12-24 常州大学 Repairing device and method for cadmium-contaminated soils
CN104226680B (en) * 2014-10-09 2016-04-13 常州大学 A kind of prosthetic device of cadmium pollution soil and method
CN104475441A (en) * 2014-12-11 2015-04-01 北京建工环境修复股份有限公司 Soil washing restoration system based on reduction concentration design concept and method thereof
CN106077062A (en) * 2016-06-30 2016-11-09 华东理工大学 The method that a kind of soil slurry wash desorption and enrichment process
CN106391685A (en) * 2016-11-21 2017-02-15 河南省水文地质工程地质勘察院有限公司 Ex-situ sorting, cleaning and repairing device for chromium-polluted soil and cleaning and repairing technology using ex-situ sorting, cleaning and repairing device
WO2019024913A1 (en) * 2017-08-04 2019-02-07 华东理工大学 Radial particle-washing device
CN108773943A (en) * 2018-08-22 2018-11-09 兴源环境科技股份有限公司 A kind of organophosphorus pesticide pollution soil heterotopic repair system and method
CN108773943B (en) * 2018-08-22 2024-03-19 兴源环境科技股份有限公司 Ectopic repair system and method for organophosphorus pesticide contaminated soil

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Inventor before: Zhong Yuchi

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