CN102000693A - Device for solar ex-situ remediation of volatile organic pollution soil - Google Patents
Device for solar ex-situ remediation of volatile organic pollution soil Download PDFInfo
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- CN102000693A CN102000693A CN 201010582316 CN201010582316A CN102000693A CN 102000693 A CN102000693 A CN 102000693A CN 201010582316 CN201010582316 CN 201010582316 CN 201010582316 A CN201010582316 A CN 201010582316A CN 102000693 A CN102000693 A CN 102000693A
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Abstract
The invention discloses a device for the solar ex-situ remediation of volatile organic pollution soil, comprising a solar steam supply system, a soil remediation bin, a water circulation system and a connecting pipeline. The device acquires heat through light condensation by utilizing solar radiation and supplies hot steam used for soil remediation by heating water inside a heat-absorbing tube, and the water circulation system continuously supplies the needed water. The device for the solar ex-situ remediation of the volatile organic pollution soil integrates steam supply, soil processing and water cyclic utilization into a whole, has the advantages of compact structure, convenience of operation and energy saving, can be applied to large-scale engineering, realizes the efficient and fast remediation of various volatile and semi-volatile organic pollution soils, and provides the technology and the equipment for the processing and the remediation of the organic pollution soil.
Description
Technical field
The invention discloses a kind of solar energy dystopy and repair the device that volatile organic matter pollutes soil, belong to the environment remediation equipment class.
Background technology
At present, China's organic pollution of soil is very serious, and orgnic compound pollution surpasses heavy metal pollution and radioactive pollution and leaps to the first, and the farmland that China is polluted by various organic pollutions (agricultural chemicals, petroleum hydrocarbon and PAHs etc.) reaches 3.6 * 10
7Hm
2, most organic pollutants is the carcinogenesis that has more than 4 rings, and the harm of agricultural product and health has been begun to appear.Along with China's industrialization and quickening of urbanization process, increasing soil is subjected to organic matter and pollutes, organic matter be adsorbed in the soil or move to underground water and atmosphere in, all will cause the danger side of body to human life's safety directly or indirectly.In recent years, owing to use not treated contaminated site, the accident that occurs can be found everywhere, country quite payes attention to for the soil pollution present situation, has carried out national land pollution investigation in succession, and has put into effect relevant rules policy, the coming years, country will drop into a large amount of manpower and financial resources, strengthen soil pollution and administer, and therefore administering organic material contaminated soil has become the urgent task that current environment is repaired the field.
The organic material contaminated soil restorative procedure is divided into original position and dystopy, the original position reparation is reduced expenses and advantages such as ambient influnence is little, be subject to environmental influence but exist, repairing efficiency is long, the repairing condition difficulty is given control and repairing effect is difficult to characteristics such as assurance, and the dystopy reparation has bigger advantage in these areas.
It is a kind of restorative procedure of removing volatile organic matter in the soil that has developed rapidly since the nineties in 20th century that gaseous phase of soil extracts (SVE) technology, be to adopt the technology the most extensive, that maturity is the highest, the SVE system operation cost is cheap, easy and simple to handle, has obtained successful Application in the reparation of many volatile organic matter contaminated soils.U.S. EPA is estimated it and is better than conventional repair techniques greatly, and domestic report shows that this technical value gets China and widelys popularize.For improving the organic component volatility, the hot enhanced soil vapor microwave leaching technology of the scope of application of expansion soil vapor microwave leaching technology is just growing, comprise hot-air injection, vapor injection and electromagnetism heating etc., the use of these enhancements has improved repairing effect greatly, but has also brought the increase of cost.In recent years, the soil remediation method that adopts vapours to inject has obtained using widely, and the method needs a large amount of vapours, its making needs great amount of water resources, when adopting original position to repair, because the contaminated site water scarcity, the insulation transportation of vapours expends a large amount of man power and materials.
Solar energy is regenerative resource, aboundresources, and application cost is low and pollution-free.At present, utilize the device of solar radiant energy existing a lot, as solar water heater, solar energy stove, solar-electricity welding machine etc., for the human lives provides many convenience.But in some under-developed areas, the popularity rate of solar energy is lower, has caused a large amount of wastes of the energy.Simultaneously, along with the exhaustion of non-renewable energy resources, solar energy will be subjected to more concern, be used for few industry.
Because China's soil remediation industry is started late, experience lacks, and most of technology and equipment is all introduced abroad, has caused raising, cycle stretch-out and the inefficiency of rehabilitation cost.Therefore, in conjunction with China's s own situation, the soil remediation device that exploitation and development have independent intellectual property right will have great importance for the improvement of China's ecological environment and the raising of living standards of the people.
Summary of the invention
At the problem of above-mentioned existence, the object of the present invention is to provide a kind of economy, efficiently, fast, but the solar energy dystopy of utilizing of project scale application is repaired the device that volatile organic matter pollutes soil, to achieve these goals, its technical solution is:
A kind of solar energy dystopy is repaired the device that volatile organic matter pollutes soil, by the solar energy steam-supplying system, the soil remediation storehouse, water circulation system and connecting pipe are formed, the solar energy steam-supplying system is made up of one group of solar attachment, each solar attachment is by bearing, flute profile optically focused housing, endothermic tube is configured to propping up, flute profile optically focused housing two ends are hinged on the bearing, support is symmetrically fixed on the outward flange of flute profile optically focused housing two ends, endothermic tube is fixed on the support, be respectively equipped with water supply connector and go out the vapour joint on the end wall of endothermic tube two ends, water supply connector is positioned at end end wall bottom, go out the vapour joint and be positioned at other end end wall top, the vapour joint that goes out of each solar attachment is parallel-connected on the insulating tube that confluxes by the tributary insulating tube, the water supply connector of each solar attachment is parallel-connected on the water injection pipe that confluxes by the tributary water injection pipe, endothermic tube and the tributary water injection pipe that confluxes between the water injection pipe are provided with water injecting pump, the soil remediation storehouse is by prefabricated bed, calotte, planetary stirring machine and nylon yarn constitute, prefabricated bed is a casing, upper surface is evenly distributed with passage, prefabricated bed sidewall top is provided with Intaking joint, bottom center is provided with drainage joint, calotte is sealingly fastened in prefabricated bed top, cap side walls is provided with a hermatic door, nylon yarn is fixed in prefabricated bed upper surface, planetary stirring machine is one group, be positioned at and also be fixed on prefabricated bed upper surface on the nylon yarn equably, the insulating tube that confluxes is tightly connected by insulating tube group and prefabricated bed top Intaking joint, water circulation system is by air exhauster, dust-collecting bucket, condenser, tail gas treatment device, sewage disposal device, suction pump, aqua storage tank, water injecting pump and connecting pipe constitute, the air inlet of air exhauster, air outlet is tightly connected respectively by blast pipe and calotte top and condenser gas access, tail gas treatment device is tightly connected by the gas vent of wireway and condenser, the water inlet of sewage disposal device and the liquid outlet of condenser are tightly connected, the delivery port of sewage disposal device and aqua storage tank top blasthole are tightly connected by aqueduct, the inlet opening of dust-collecting bucket and prefabricated bed bottom discharge joint are tightly connected by aqueduct, the apopore of dust-collecting bucket is tightly connected by the inlet opening of aqueduct and sewage disposal device, aqueduct between sewage disposal device and the dust-collecting bucket (14) is provided with suction pump, and the water inlet end of the water injection pipe that confluxes and the apopore of aqua storage tank are tightly connected.
Described endothermic tube adopts specific heat capacity less than 0.4 * 10
3The metal material of kJ/ (kg ℃).
The caliber ratio of described conflux insulating tube and tributary insulating tube is 2: 1.
The caliber ratio of described conflux water injection pipe and tributary water injection pipe is 2: 1.
Owing to adopted above technical scheme, solar energy dystopy of the present invention is repaired the device that volatile organic matter pollutes soil, adopt solar radiant energy to prepare vapours, volatile organic matter is polluted soil carry out the thermal desorption processing, the solar energy steam-supplying system adopts one group of solar attachment, vapours supply rate and flow have been guaranteed, the heating of big face territory is satisfied in the flute profile design of solar attachment, the soil remediation chamber structure is reasonable, and vapours evenly by polluting soil, can improve remediation efficiency under the effect of planetary stirring instrument, the timely collection and treatment of tail gas, can not bring secondary pollution, the sewage synchronous purification is also recycling, has saved resource.Device integrates steam supply, soil treatment and water circulation use, compact conformation, easy to operate, energy savings, can large-scale engineering applications, realize various volatility, semi-volatile organic matter pollute soil efficient, repair fast, for the processing and the reparation of organic material contaminated soil provides technology and equipment.
Description of drawings:,
Accompanying drawing is the structural representation for the treatment of apparatus of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail:
See accompanying drawing
A kind of solar energy dystopy is repaired the device that volatile organic matter pollutes soil, it is by the solar energy steam-supplying system, the soil remediation storehouse, water circulation system and connecting pipe are formed, the solar energy steam-supplying system is made up of one group of solar attachment, each solar attachment is by bearing 1, flute profile optically focused housing 2, endothermic tube 3 and support 4 constitute, flute profile optically focused housing 2 two ends are hinged on the bearing 1, can be according to solar light irradiation angle free adjustment housing institute towards direction, also can adopt the automatic tracking type design, the long trough structure of flute profile optically focused housing 2 has realized the heating of solar energy face territory, support 4 is symmetrically fixed on the flute profile optically focused housing 2 two ends outward flanges, endothermic tube 3 is fixed on the support 4, adopts specific heat capacity less than 0.4 * 10
3The metal material of kJ/ (kg ℃), heat absorption and heat conductivility are strong, be respectively equipped with water supply connector and go out the vapour joint on the endothermic tube 3 two ends end walls, water supply connector is positioned at end end wall bottom, go out the vapour joint and be positioned at other end end wall top, usually can adopt 3 solar attachments is one group, the vapour joint that goes out of each solar attachment is parallel-connected on the insulating tube 6 that confluxes by tributary insulating tube 5, insulating tube has guaranteed that vapor (steam) temperature is lost, in order better to guarantee throttle flow, the water supply connector of each solar attachment is parallel-connected on the water injection pipe 20 that confluxes by tributary water injection pipe 21, the caliber ratio of insulating tube 6 and tributary insulating tube 5 of confluxing is 2: 1, the caliber ratio of water injection pipe 20 and tributary water injection pipe 21 of confluxing is 2: 1, ensure the output of each endothermic tube 3, endothermic tube 3 and the tributary water injection pipe 21 that confluxes between the water injection pipe 20 are provided with water injecting pump 22, the supply at water injecting pump 22 control water sources, the soil remediation storehouse is by prefabricated bed 8, calotte 9, planetary stirring machine 10 and nylon yarn 11 constitute, prefabricated bed 8 is a casing, prefabricated bed 8 sidewalls top is provided with Intaking joint, bottom center is provided with drainage joint, prefabricated bed 8 upper surfaces are evenly distributed with passage 12, vapours can enter in the calotte 9 equably by the prefabricated bed 8 of box-shaped, calotte 9 is sealingly fastened in prefabricated bed 8 tops, calotte 9 sidewalls are provided with a hermatic door, convenient turnover of polluting soil, nylon yarn 11 is fixed in prefabricated bed 8 upper surfaces, planetary stirring machine 10 is one group, be positioned at and also be fixed on prefabricated bed 8 upper surfaces on the nylon yarn 11 equably, planetary structure has enlarged the sphere of action of single mixer 10, stirring action can quicken the desorb of volatile organic matter, nylon yarn 11 can stop pollution soil to fall down in the prefabricated bed 8, the insulating tube 6 that confluxes is tightly connected by insulating tube group 7 and prefabricated bed 8 top Intaking joints, guaranteed that vapours evenly enters in the prefabricated bed 8, water circulation system is by air exhauster 13, dust-collecting bucket 14, condenser 15, tail gas treatment device 16, sewage disposal device 17, suction pump 18, aqua storage tank 19, water injecting pump 22 and connecting pipe constitute, the air inlet of air exhauster 13, air outlet is tightly connected respectively by blast pipe and calotte 9 tops and condenser 15 gas accesses, tail gas treatment device 16 is tightly connected by the gas vent of wireway and condenser 15, the liquid outlet of the water inlet of sewage disposal device 17 and condenser 15 is tightly connected, the delivery port of sewage disposal device 17 and aqua storage tank 19 top blastholes are tightly connected by aqueduct, the dusty gas of extracting out can be efficient after condenser 15 shuntings, fast processing, and moisture content can be realized recycling, the inlet opening of dust-collecting bucket 14 and prefabricated bed 8 bottom discharge joints are tightly connected by aqueduct, the apopore of dust-collecting bucket 14 is tightly connected by the inlet opening of aqueduct and sewage disposal device 17, aqueduct between sewage disposal device 17 and the dust-collecting bucket 14 is provided with suction pump 18, this structure is used to handle prefabricated bed 8 sewage that the bottom collects, recycling after the sewage disposal, the water inlet end of the water injection pipe 20 that confluxes and the apopore of aqua storage tank 19 are tightly connected.
Solar energy dystopy of the present invention is repaired the device operation principle that volatile organic matter pollutes soil:
Open the hermatic door on the calotte 9, pending pollution soil is tiled on the prefabricated bed 8, shut the hermatic door on the calotte 9, opening water injecting pump 22 discharges water, water purification in the aqua storage tank 19 flows into wherein from the liquid inlet of endothermic tube 3 through conflux water injection pipe 20 and tributary water injection pipe 21, when the water level in the endothermic tube 3 reaches endothermic tube 2/3, close water injecting pump 22, the switching that should control water injecting pump 22 at any time according to the water level in the endothermic tube 3 in service, open the power switch of air exhauster 13 and mixer 10, the water vapour that the transpiration of being heated goes out is flowed out by the pore of endothermic tube 3, in tributary insulating tube 5 confluxes insulating tube 6, flow in the prefabricated bed 8 through insulating tube group 7 again, vapours is flowed through equably from passage 12 and is polluted soil, be subjected to the volatile organic contaminant of thermal desorption under the effect of air exhauster 13, to flow in the condenser 15, through shunting, dusty gas flows in the tail gas treatment device 16 and handles, sewage then flows in the sewage disposal device 17 and purifies, when there is sewage in prefabricated bed 8 bottoms, should open suction pump 18, close after exhausting sewage, water purification after the purification flows in the aqua storage tank 19 and utilizes, skew along with the solar light irradiation angle, should adjust at any time flute profile optically focused housing 2 towards, to guarantee the rate of heat addition.
Claims (4)
1. a solar energy dystopy is repaired the device that volatile organic matter pollutes soil, it is characterized in that: the solar energy dystopy is repaired volatile organic matter and is polluted the device of soil by the solar energy steam-supplying system, the soil remediation storehouse, water circulation system and connecting pipe are formed, described solar energy steam-supplying system is made up of one group of solar attachment, each solar attachment is by bearing (1), flute profile optically focused housing (2), endothermic tube (3) and support (4) constitute, flute profile optically focused housing (2) two ends are hinged on the bearing (1), support (4) is symmetrically fixed on the outward flange of flute profile optically focused housing (2) two ends, endothermic tube (3) is fixed on the support (4), be respectively equipped with water supply connector and go out the vapour joint on the end wall of endothermic tube (3) two ends, water supply connector is positioned at the end wall bottom, go out the vapour joint and be positioned at other end end wall top, the vapour joint that goes out of each solar attachment is parallel-connected on the insulating tube that confluxes (6) by tributary insulating tube (5), the water supply connector of each solar attachment is parallel-connected on the water injection pipe that confluxes (20) by tributary water injection pipe (21), tributary water injection pipe (21) between endothermic tube (3) and the water injection pipe that confluxes (20) is provided with water injecting pump (22), described soil remediation storehouse is by prefabricated bed (8), calotte (9), planetary stirring machine (10) and nylon yarn (11) constitute, prefabricated bed (8) is a casing, prefabricated bed (8) upper surface is evenly distributed with passage (12), prefabricated bed (8) sidewall top is provided with Intaking joint, bottom center is provided with drainage joint, calotte (9) is sealingly fastened in prefabricated bed (8) top, calotte (9) sidewall is provided with a hermatic door, nylon yarn (11) is fixed in prefabricated bed (8) upper surface, planetary stirring machine (10) is one group, be positioned at nylon yarn (11) and go up and be fixed on equably prefabricated bed (8) upper surface, the insulating tube (6) that confluxes is tightly connected by insulating tube group (7) and prefabricated bed (8) top Intaking joint, described water circulation system is by air exhauster (13), dust-collecting bucket (14), condenser (15), tail gas treatment device (16), sewage disposal device (17), suction pump (18), aqua storage tank (19), water injecting pump (22) and connecting pipe constitute, the air inlet of air exhauster (13), air outlet is tightly connected respectively by blast pipe and calotte (9) top and condenser (15) gas access, tail gas treatment device (16) is tightly connected by the gas vent of wireway and condenser (15), the liquid outlet of the water inlet of sewage disposal device (17) and condenser (15) is tightly connected, the delivery port of sewage disposal device (17) and aqua storage tank (19) top blasthole are tightly connected by aqueduct, the inlet opening of dust-collecting bucket (14) and prefabricated bed (8) bottom discharge joint are tightly connected by aqueduct, the apopore of dust-collecting bucket (14) is tightly connected by the inlet opening of aqueduct and sewage disposal device (17), aqueduct between sewage disposal device (17) and the dust-collecting bucket (14) is provided with suction pump (18), and the apopore of the water inlet end of the water injection pipe that confluxes (20) and aqua storage tank (19) is tightly connected.
2. a kind of solar energy dystopy as claimed in claim 1 is repaired the device that volatile organic matter pollutes soil, it is characterized in that: described endothermic tube (3) adopts specific heat capacity less than 0.4 * 10
3The metal material of kJ/ (kg ℃).
3. a kind of solar energy dystopy as claimed in claim 1 is repaired the device that volatile organic matter pollutes soil, and it is characterized in that: the caliber ratio of described insulating tube that confluxes (6) and tributary insulating tube (5) is 2: 1.
4. a kind of solar energy dystopy as claimed in claim 1 is repaired the device that volatile organic matter pollutes soil, and it is characterized in that: the caliber ratio of described water injection pipe that confluxes (20) and tributary water injection pipe (21) is 2: 1.
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| CN2010105823168A CN102000693B (en) | 2010-12-06 | 2010-12-06 | Device for solar ex-situ remediation of volatile organic pollution soil |
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| CN2010105823168A CN102000693B (en) | 2010-12-06 | 2010-12-06 | Device for solar ex-situ remediation of volatile organic pollution soil |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102350438A (en) * | 2011-07-15 | 2012-02-15 | 沈阳环境科学研究院 | System for continuous desorption and purification of VOCs in soil |
| CN103203355A (en) * | 2013-04-12 | 2013-07-17 | 江苏大地益源环境修复有限公司 | Ectopic thermal desorption treatment method of polluted soil |
| CN105080956A (en) * | 2015-08-27 | 2015-11-25 | 常州大学 | Device for restoring compound contaminated soil through solar light and heat in ex-situ manner |
| CN105234166A (en) * | 2015-11-20 | 2016-01-13 | 中钢集团天澄环保科技股份有限公司 | Solar in-situ reinforced vapor extracting system for restoring soil organic pollutants |
| CN105290097A (en) * | 2015-11-09 | 2016-02-03 | 北京建工环境修复股份有限公司 | In-situ soil heating device and in-situ soil heating decontamination device with same |
| CN105499263A (en) * | 2016-01-26 | 2016-04-20 | 中科鼎实环境工程有限公司 | Heat strengthening soil gas-phase extraction system |
| CN105618474A (en) * | 2016-02-25 | 2016-06-01 | 安徽省通源环境节能股份有限公司 | Device and method for carrying out distillation treatment on soil pollutants |
| CN106001076A (en) * | 2016-07-26 | 2016-10-12 | 环境保护部南京环境科学研究所 | Solar ventilation system device for remediation of contaminated site |
| CN106216372A (en) * | 2016-08-12 | 2016-12-14 | 清华大学 | A kind of original position soil prosthetic device utilizing solar energy and construction method thereof |
| CN111744944A (en) * | 2020-06-23 | 2020-10-09 | 中国科学院广州能源研究所 | Method and system for desorbing or fixing organic matters and metals in soil by using solar-driven desorption agent |
| CN112296077A (en) * | 2019-07-31 | 2021-02-02 | 云南师范大学 | Solar heating workshop for soil pollution point location |
| CN112496017A (en) * | 2020-11-12 | 2021-03-16 | 江苏大地益源环境修复有限公司 | In-situ heat conduction desorption system based on steam enhancement and process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350438A (en) * | 2011-07-15 | 2012-02-15 | 沈阳环境科学研究院 | System for continuous desorption and purification of VOCs in soil |
| CN103203355A (en) * | 2013-04-12 | 2013-07-17 | 江苏大地益源环境修复有限公司 | Ectopic thermal desorption treatment method of polluted soil |
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| CN105080956A (en) * | 2015-08-27 | 2015-11-25 | 常州大学 | Device for restoring compound contaminated soil through solar light and heat in ex-situ manner |
| CN105290097A (en) * | 2015-11-09 | 2016-02-03 | 北京建工环境修复股份有限公司 | In-situ soil heating device and in-situ soil heating decontamination device with same |
| CN105234166B (en) * | 2015-11-20 | 2018-04-10 | 中钢集团天澄环保科技股份有限公司 | A kind of system of solar energy home position strengthening gas phase extracting rehabilitating soil organic pollution |
| CN105234166A (en) * | 2015-11-20 | 2016-01-13 | 中钢集团天澄环保科技股份有限公司 | Solar in-situ reinforced vapor extracting system for restoring soil organic pollutants |
| CN105499263A (en) * | 2016-01-26 | 2016-04-20 | 中科鼎实环境工程有限公司 | Heat strengthening soil gas-phase extraction system |
| CN105618474B (en) * | 2016-02-25 | 2019-03-05 | 安徽省通源环境节能股份有限公司 | The device and method of distillation processing soil pollutant |
| CN105618474A (en) * | 2016-02-25 | 2016-06-01 | 安徽省通源环境节能股份有限公司 | Device and method for carrying out distillation treatment on soil pollutants |
| CN106001076A (en) * | 2016-07-26 | 2016-10-12 | 环境保护部南京环境科学研究所 | Solar ventilation system device for remediation of contaminated site |
| CN106216372A (en) * | 2016-08-12 | 2016-12-14 | 清华大学 | A kind of original position soil prosthetic device utilizing solar energy and construction method thereof |
| CN106216372B (en) * | 2016-08-12 | 2019-02-22 | 清华大学 | A kind of original position soil prosthetic device and its construction method using solar energy |
| CN112296077A (en) * | 2019-07-31 | 2021-02-02 | 云南师范大学 | Solar heating workshop for soil pollution point location |
| CN111744944A (en) * | 2020-06-23 | 2020-10-09 | 中国科学院广州能源研究所 | Method and system for desorbing or fixing organic matters and metals in soil by using solar-driven desorption agent |
| CN112496017A (en) * | 2020-11-12 | 2021-03-16 | 江苏大地益源环境修复有限公司 | In-situ heat conduction desorption system based on steam enhancement and process thereof |
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