CN104624626A - Contaminated soil in-situ reparation system - Google Patents
Contaminated soil in-situ reparation system Download PDFInfo
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- CN104624626A CN104624626A CN201310574797.1A CN201310574797A CN104624626A CN 104624626 A CN104624626 A CN 104624626A CN 201310574797 A CN201310574797 A CN 201310574797A CN 104624626 A CN104624626 A CN 104624626A
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Abstract
The invention discloses a contaminated soil in-situ reparation system which is used for repairing the contaminated soil in situ. The contaminated soil in-situ reparation system comprises an extraction well, wherein a seal cover is paved on the ground surface of the contaminated soil; an opening of the extraction well is provided with a gas collecting cover in a sealed mode; an output line of the gas collecting cover is provided with a purification pipeline and a vacuumizing pipeline in parallel; the vacuumizing pipeline is provided with an electromagnetic valve, a vacuum pump, an air blower and an adsorption box; the purification pipeline comprises a purification tank connected to the output pipeline of the gas collecting tank; the pipeline close to the purification tank is provided with an extraction fan; a medicine storage tank is arranged beside the purification tank; the extraction well is internally fixedly provided with a heat insulation pipe which is provided with a heater; a communication lead of the heater penetrates through the heat insulation pipe internally, and extends to a power supply installed outside the ground surface. The system can be used for heating the contaminated soil in the same well, extracting toxic gases, purifying the toxic gases by utilizing a chemical agent so as to purify and repair the contaminated soil in situ.
Description
Technical field
The present invention relates to contaminated soil remediation field, especially relate to a kind of in-situ remediation system of contaminated soil.
Background technology
Along with propelling and the fast urbanization process that accompanies with it of modernization, a series of ecological environment problem arises at the historic moment, wherein, due in pollutant emission to soil environment and the soil contamination problem that causes such as agrochemicals kind and quantity increase particularly outstanding.Soil pollution is owing to having disguise, hysteresis quality, cumulative bad and the feature such as refractory reason and repairing efficiency length, its reparation problem has become the field that Research of Environmental Sciences becomes increasingly active, soil pollution has also become the overall situation problem that the whole world is paid close attention to jointly, along with the enhancing of people's environmental consciousness, when existing a lot of contaminated soil is normally used again, all soil remediation can be carried out, the able-bodied object of people is not affected to reaching, administer soil pollution and usually have showering and in-situ immobilization two kinds of methods, contaminated soil heterotopic reparation refers to repairs after contaminated soil transfer, showering relates to shoveling and muck haulage, destroy native soil structure, the region that very difficult pollution administration is darker, and running cost is high, after the eighties in 20th century, developed country starts to pay attention to soil contamination problem, the U.S. took more than one hundred billion dollar with the in-situ soil remediation technology of encouraging some emerging between 10 years of the nineties in 20th century, the in-situ immobilization of contaminated soil refers to be repaired contaminated soil in original place, in the in-situ immobilization of contaminated soil, usually can excavate multiple well respectively, have for heating, have for stripping gas, this mode floor space is comparatively large, adds the engineering time of contaminated soil remediation.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of in-situ remediation system of contaminated soil is provided, this system can heat contaminated soil in same well, and by toxic gas extracting, utilize chemical agent to be purified by toxic gas, achieve the purified in situ reparation to contaminated soil.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of in-situ remediation system of contaminated soil, for carrying out in-situ immobilization to contaminated soil, it is characterized in that: comprise the extraction well that earth's surface place, contaminated soil place digs out downwards, upper berth, earth's surface, contaminated soil place is provided with seal cover, the well head place of described extraction well is sealed and installed with gas skirt, gas skirt is fixed on earth's surface by fastening bolt, the output pipe of described gas skirt is arranged in parallel purification pipeline and vacuum-pumping pipeline, described vacuum-pumping pipeline comprises and is connected to vavuum pump on gas skirt output pipe and adsorption box, vacuum-pumping pipeline between gas skirt and vavuum pump is provided with magnetic valve, vacuum-pumping pipeline between vavuum pump and adsorption box is provided with air blast, described purification pipeline comprises the purification tank be connected on gas skirt output pipe, on the purification pipeline of purification tank, extracting blower fan is installed, liquid level sensor for monitoring chemical agent addition is installed in described purification tank, be provided with the explosive box for providing chemical agent for it near purification tank, the purification pipeline between described purification tank and explosive box is provided with drug delivery pump, described extraction well internal fixtion is provided with instlated tubular, and described instlated tubular is provided with heater, and the communication conductive wire of described heater is arranged in instlated tubular, described communication conductive wire extend to be arranged on ground off-balancesheet power supply on.
The in-situ remediation system of above-mentioned a kind of contaminated soil, is characterized in that: be filled with the active carbon for being adsorbed with poisonous gas in described adsorption box.
The in-situ remediation system of above-mentioned a kind of contaminated soil, is characterized in that: described seal cover is the film for preventing toxic gas seepage.
The present invention compared with prior art has the following advantages:
1, present invention incorporates the advantage that vacuum extraction and chemical agent purify, by to contaminated soil by heating, fast high concentration noxious gas is wherein extracted under suction function, and then utilize chemical agent to carry out reaction purification to toxic gas, extracting treatment effeciency is high, technological process is fairly simple, and in-situ immobilization cost is low, applied widely.
2, in the present invention in order to prevent communication conductive wire degradation or the damage in high temperature environments of heater, in extraction well, arrange this communication conductive wire by instlated tubular, improve security and the durability of system equipment; By arranging the seal cover on gas skirt and contaminated soil surface at extracting well head, achieve the extracting to contaminated soil heating and toxic gas in a well, saved floor space, decreased construction period.
3, the present invention has that reasonable in design, equipment is simple, operation operation is convenient and is easy to the advantage safeguarded, has broad application prospects.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Description of reference numerals:
Detailed description of the invention
The in-situ remediation system of a kind of contaminated soil as shown in Figure 1, for carrying out in-situ immobilization to contaminated soil 4, it is characterized in that: comprise the extraction well 5 that earth's surface place, contaminated soil 4 place digs out downwards, upper berth, earth's surface, contaminated soil 4 place is provided with seal cover 3, the well head place of described extraction well 5 is sealed and installed with gas skirt 11, gas skirt 11 is fixed on earth's surface by fastening bolt 9, the output pipe of described gas skirt 11 is arranged in parallel purification pipeline and vacuum-pumping pipeline, described vacuum-pumping pipeline comprises and is connected to vavuum pump 8 on gas skirt 11 output pipe and adsorption box 1, vacuum-pumping pipeline between gas skirt 11 and vavuum pump 8 is provided with magnetic valve 10, vacuum-pumping pipeline between vavuum pump 8 and adsorption box 1 is provided with air blast 2, described purification pipeline comprises the purification tank 15 be connected on gas skirt 11 output pipe, on the purification pipeline of purification tank 15, extracting blower fan 12 is installed, liquid level sensor 13 for monitoring chemical agent addition is installed in described purification tank 15, be provided with the explosive box 16 for providing chemical agent for it near purification tank 15, the purification pipeline between described purification tank 15 and explosive box 16 is provided with drug delivery pump 14, described extraction well 5 internal fixtion is provided with instlated tubular 7, described instlated tubular 7 is provided with heater 6, the communication conductive wire 18 of described heater 6 is arranged in instlated tubular 7, described communication conductive wire 18 extend to be arranged on ground off-balancesheet power supply 17 on, be filled with the active carbon for being adsorbed with poisonous gas in described adsorption box 1, described seal cover 3 is the film for preventing toxic gas seepage.
Operation principle of the present invention is: when extraction well 5 works, open magnetic valve 10, start vavuum pump 8, when reaching certain vacuum in well and spending, open the power supply of heater 6, heat entering internal contamination soil 4, toxic gas in soil will rise fast under suction function, now shut electromagnetic valve 10, open extracting blower fan 12, chemical agent toxic gas extracting in purification tank 15, will be sent into purification tank 15 from explosive box 16 by drug delivery pump 14 by extracting blower fan 12, utilizes chemical agent by toxic gas reaction purification; Air blast 2 in vacuum-pumping pipeline vacuumizes intensity for increasing vacuum line, and the toxic gas produced in the adsorbable vacuum of the active carbon in adsorption box 1, avoids leaking outside of toxic gas.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solution of the present invention.
Claims (3)
1. the in-situ remediation system of a contaminated soil, for carrying out in-situ immobilization to contaminated soil (4), it is characterized in that: comprise the extraction well (5) that contaminated soil (4) earth's surface, place place digs out downwards, upper berth, contaminated soil (4) earth's surface, place is provided with seal cover (3), the well head place of described extraction well (5) is sealed and installed with gas skirt (11), gas skirt (11) is fixed on earth's surface by fastening bolt (9), the output pipe of described gas skirt (11) is arranged in parallel purification pipeline and vacuum-pumping pipeline, described vacuum-pumping pipeline comprises and is connected to vavuum pump (8) on gas skirt (11) output pipe and adsorption box (1), vacuum-pumping pipeline between gas skirt (11) and vavuum pump (8) is provided with magnetic valve (10), vacuum-pumping pipeline between vavuum pump (8) and adsorption box (1) is provided with air blast (2), described purification pipeline comprises the purification tank (15) be connected on gas skirt (11) output pipe, on the purification pipeline of purification tank (15), extracting blower fan (12) is installed, liquid level sensor (13) for monitoring chemical agent addition is installed in described purification tank (15), be provided with the explosive box (16) for providing chemical agent for it near purification tank (15), the purification pipeline between described purification tank (15) and explosive box (16) be provided with drug delivery pump (14), described extraction well (5) internal fixtion is provided with instlated tubular (7), described instlated tubular (7) is provided with heater (6), the communication conductive wire (18) of described heater (6) is arranged in instlated tubular (7), described communication conductive wire (18) extend to be arranged on ground off-balancesheet power supply (17) on.
2. according to the in-situ remediation system of a kind of contaminated soil according to claim 1, it is characterized in that: in described adsorption box (1), be filled with the active carbon for being adsorbed with poisonous gas.
3. according to the in-situ remediation system of a kind of contaminated soil according to claim 1, it is characterized in that: described seal cover (3) is the film for preventing toxic gas seepage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310574797.1A CN104624626A (en) | 2013-11-14 | 2013-11-14 | Contaminated soil in-situ reparation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310574797.1A CN104624626A (en) | 2013-11-14 | 2013-11-14 | Contaminated soil in-situ reparation system |
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| CN104624626A true CN104624626A (en) | 2015-05-20 |
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| CN201310574797.1A Pending CN104624626A (en) | 2013-11-14 | 2013-11-14 | Contaminated soil in-situ reparation system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399740A (en) * | 2014-11-18 | 2015-03-11 | 青岛新天地环境保护有限责任公司 | Horizontal water stopping layer structure and method thereof for contaminated soil remediation |
| CN106216381A (en) * | 2016-08-05 | 2016-12-14 | 上海漕河泾桃浦科技智慧城经济发展有限公司 | Freezing isolation and in-situ heat desorbing integral system and the processing method of contaminated soil |
| CN106267633A (en) * | 2016-09-26 | 2017-01-04 | 济南康和消防技术有限公司 | A kind of fire extinguisher dry chemical reuse system of processing |
| CN106424121A (en) * | 2016-12-02 | 2017-02-22 | 河北大美环境修复科技有限公司 | In-situ remediation system for organic matter-contaminated soil |
| CN106424122A (en) * | 2016-12-02 | 2017-02-22 | 河北大美环境修复科技有限公司 | In-situ repairing system for organic polluted soil under hardened road surfaces |
| CN109304358A (en) * | 2018-11-30 | 2019-02-05 | 广东佳德土壤修复技术有限公司 | A kind of situ heat treatment, gas phase extracting and permeable reactive barrier joint renovation of organic pollution soil device |
| CN109877148A (en) * | 2019-03-27 | 2019-06-14 | 北京高能时代环境技术股份有限公司 | Multi-functional electric heating well device |
| CN110847152A (en) * | 2019-11-29 | 2020-02-28 | 大连海事大学 | Soil in-situ high-temperature sintering heat treatment system and method |
| CN113333447A (en) * | 2021-05-27 | 2021-09-03 | 中国科学院沈阳应用生态研究所 | In-situ application matching device and method for soil vapor extraction degradation restoration technology |
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2013
- 2013-11-14 CN CN201310574797.1A patent/CN104624626A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399740A (en) * | 2014-11-18 | 2015-03-11 | 青岛新天地环境保护有限责任公司 | Horizontal water stopping layer structure and method thereof for contaminated soil remediation |
| CN106216381A (en) * | 2016-08-05 | 2016-12-14 | 上海漕河泾桃浦科技智慧城经济发展有限公司 | Freezing isolation and in-situ heat desorbing integral system and the processing method of contaminated soil |
| CN106216381B (en) * | 2016-08-05 | 2019-08-16 | 上海品事环境科技有限公司 | The freezing isolation of contaminated soil and thermal desorption integral system in situ and processing method |
| CN106267633A (en) * | 2016-09-26 | 2017-01-04 | 济南康和消防技术有限公司 | A kind of fire extinguisher dry chemical reuse system of processing |
| CN106424121A (en) * | 2016-12-02 | 2017-02-22 | 河北大美环境修复科技有限公司 | In-situ remediation system for organic matter-contaminated soil |
| CN106424122A (en) * | 2016-12-02 | 2017-02-22 | 河北大美环境修复科技有限公司 | In-situ repairing system for organic polluted soil under hardened road surfaces |
| CN109304358A (en) * | 2018-11-30 | 2019-02-05 | 广东佳德土壤修复技术有限公司 | A kind of situ heat treatment, gas phase extracting and permeable reactive barrier joint renovation of organic pollution soil device |
| CN109304358B (en) * | 2018-11-30 | 2023-10-31 | 广东佳德土壤修复技术有限公司 | Device for jointly repairing organic contaminated soil through in-situ heat treatment, vapor extraction and permeable reaction wall |
| CN109877148A (en) * | 2019-03-27 | 2019-06-14 | 北京高能时代环境技术股份有限公司 | Multi-functional electric heating well device |
| CN110847152A (en) * | 2019-11-29 | 2020-02-28 | 大连海事大学 | Soil in-situ high-temperature sintering heat treatment system and method |
| CN113333447A (en) * | 2021-05-27 | 2021-09-03 | 中国科学院沈阳应用生态研究所 | In-situ application matching device and method for soil vapor extraction degradation restoration technology |
| CN113333447B (en) * | 2021-05-27 | 2022-04-12 | 中国科学院沈阳应用生态研究所 | In-situ application matching device and method for soil vapor extraction degradation restoration technology |
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Application publication date: 20150520 |