CN102320686B - Device and method for rapidly purifying, repairing and filtering heavy metal polluted water and soil - Google Patents
Device and method for rapidly purifying, repairing and filtering heavy metal polluted water and soil Download PDFInfo
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- CN102320686B CN102320686B CN 201110175151 CN201110175151A CN102320686B CN 102320686 B CN102320686 B CN 102320686B CN 201110175151 CN201110175151 CN 201110175151 CN 201110175151 A CN201110175151 A CN 201110175151A CN 102320686 B CN102320686 B CN 102320686B
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Abstract
The invention relates to a device and a method for rapidly purifying and repairing heavy metal polluted water and soil. The device consists of a sealing cover and a hollow cavity filter core, wherein a cylindrical connecting mouth is formed on the sealing cover; and at least one heavy metal trapping agent filling layer is arranged in the hollow cavity filter core. The devices are connected in parallel or in series to form a purifying and repairing array and placed into soil and water polluted by heavy metal; a port at one end of the array is connected with any mechanical power devices (such as a fan, a draft fan, a blast blower, a vacuum pump, a draught fan, an axial flow fan, a centrifugal pump, a slurry pump, a booster pump and a circulating pump) which can generate negative pressure in the hollow cavity filter core; and the heavy metal trapping agent filling layer is used for trapping the heavy metal polluting the water and the soil, so that the water and the soil polluted by the heavy metal can be effectively purified and repaired. The device has a novel and simple structure, the method is practicable and the device and the method have large-scale application prospect.
Description
Technical field:
The invention belongs to the environmental protection field, relate to heavy metal-containing polluted water and soil remediation device and method, especially relate to the fast purification prosthetic device and the method for heavy metal-containing polluted water and soil, promptly water and heavy metal pollution of soil fast purification are repaired filtration unit and method.
Background technology:
Because big area mining or heavy metal metallurgy industry; The waste residue of industries such as chemical industry; Reasons such as the discharging of waste water cause large-area heavy metal contamination for a lot of geographic soil of China; Contaminated soil is because the existence of heavy metal causes the underproduction of farm crop and the heavy metal content severe overweight of agricultural-food; The agricultural-food of edible these heavy metal contaminations will work the mischief to HUMAN HEALTH, and some regional heavy metal contamination degree seriously stops contaminated ground cultivating to country, and country and government every year take out a large amount of funds release from finance and buy grain to the masses of locality and eat.The soil that how will receive heavy metal contamination purifies and repairs is the task of top priority of applied science.
The method that known a kind of heavy metal pollution of soil is administered is to adopt the method for drip washing, and the heavy metal in the soil is separated, and this method will consume the water of flood tide, also will soil be focused in the container, and effort is taken a lot of work.Be unfavorable for extensive enforcement;
Another kind of known method is to adopt plantation that the vegetation that the certain heavy metal has inrichment is come the heavy metal in the enrichment soil, prescinds the plant that grows ground then, does focusing on the heavy metal contamination of eliminating in the soil;
Also having a kind of known method is to adopt moving electrical method, promptly in soil, inserts Graphite Electrodes, and then uses electrolytic solution in the soil; Let heavy metal cation rely on the effect of electric current to move to the negative pole of electrode; Negatively charged ion moves to positive electrode, thereby reaches the effect of removing heavy metal, but owing to cation type in the soil enriches various; Add that soil to cationic adsorption, is difficult to reach decontamination effect improving preferably;
Use mikrobe that the bacterium heavy metal of engulfing of heavy metal is changed over to the intravital method of mikrobe in addition abroad, but how mikrobe and soil have been separated into technical bottleneck;
The currently known methods that also has is the method that employing is a water-insoluble with water-soluble heavy metal ion converted in-situ; This method is cured the symptoms, not the disease, and can not fundamentally eliminate the total amount of heavy metal, moreover; Along with the variation of the potential of hydrogen of soil chemical properties, heavy metal ion is therefrom stripping also.Can not deal with problems.
At present, know do not have ideal heavy metal contamination fast purification to repair filtration unit and method as yet according to the applicant.
Summary of the invention
The objective of the invention is to overcome deficiency and the problem that preceding method exists; Provide and from soil, to have purified repairing heavy metal pollution; Can be applicable to that again heavy metal contamination purifies the overanxious device and method of repairing in the water body; Apparatus structure of the present invention is simple, and is easy to implement the method, has the large-scale application prospect.
Method of the present invention is to realize like this; With connecting tube two above water and heavy metal pollution of soil fast purification being repaired filtration unit parallel connection or series connection is linked to be to purify and repairs array; Purify the mechanical driver unit that connects the generation negative pressure on connecting tube one end interface of repairing array at this; The cavity that water and heavy metal pollution of soil fast purification are repaired in the filtration unit is crossed filter core generation negative pressure; Filter the in-core heavy metal chelating agent through cavity and load the heavy metal that layer captures polluted water and soil, purify and repair contaminated by heavy metals water and soil;
Further; With straight-through shape connecting tube water and the parallel connection of heavy metal pollution of soil fast purification reparation filtration unit are linked to be purification reparation array; Purify the mechanical driver unit that connects the generation negative pressure on connecting tube one end interface of repairing array at this; The mechanical driver unit that produces negative pressure is blower fan or vacuum fan or gas blower or vacuum pump or induced draft fan or aerofoil fan or impeller pump or slag stock pump or topping-up pump or recycle pump; The cavity that water and heavy metal pollution of soil fast purification are repaired in the filtration unit is crossed filter core generation negative pressure; Filter the in-core heavy metal chelating agent through cavity and load the heavy metal that layer captures polluted water and soil, purify and repair contaminated by heavy metals water and soil;
Further; With the U-shaped connecting tube water and the series connection of heavy metal pollution of soil fast purification reparation filtration unit are linked to be snakelike purification reparation array; Purify the mechanical driver unit that connects the generation negative pressure on connecting tube one end interface of repairing array at this; The mechanical driver unit that produces negative pressure is blower fan or vacuum fan or gas blower or vacuum pump or induced draft fan or aerofoil fan or impeller pump or slag stock pump or topping-up pump or recycle pump; The cavity that water and heavy metal pollution of soil fast purification are repaired in the filtration unit is crossed filter core generation negative pressure; Filter the in-core heavy metal chelating agent through cavity and load the heavy metal that layer captures polluted water and soil, purify and repair contaminated by heavy metals water and soil.
Device of the present invention is to realize like this; A kind of water and heavy metal pollution of soil fast purification are repaired filtration unit, are to cross filter core by capping and cavity to constitute, wherein; Capping is provided with and connects mouth, and cavity filters in-core and has at least one deck heavy metal chelating agent to load layer;
Further, described cavity is crossed filter core or is cylindrical, or is prismatic, or is the star cylindricality.
Further, described cavity is crossed the filter case metal traps of attaching most importance to and is loaded a layer shell.
Many institutes are many to be known; The chemical combination form that different heavy metals exists in soil is different; But can be absorbed the heavy metal that pollutes agricultural-food by soil vegetative cover must be that the water soluble ion attitude could be moved between soil and plant; For example: there is form in lead in soil be basic lead white, make lead salt be converted into the water soluble ion attitude, can in soil, apply certain density aqueous acetic acid; The white lead carbonate that is is converted into plumbic acetate, and this moment, water-soluble lead ion just can move along with the migration of water.
Want to purify the heavy metal that exists in the rehabilitating soil; Need to build a kind of reason that can let water-soluble heavy metal ion slewing migration, i.e. direction towards we the design directed reason that move of metals ion in soil, otherwise; The water-soluble heavy metal ion liquid of dissolved will be to lower floor's infiltration of soil; The reason of this directional migration relies on the method for chemistry to be difficult to reach, though moving electrical method can promote the heavy metal cation directional migration, required time is huge with power consumption.
The present invention can be used for the soil sanitation reparation, be utilize moisture soil three-dimensional by high density to the lower concentration diffusion principle, the artificial ventilative water permeability that utilizes soil; Negative pressure space is set in soil, and the flow at high speed of the air in the cavity that makes is constantly taken away the part moisture near the soil of cavity, makes moisture distribution formation concentration difference in the soil; Impel the moisture of high-moisture constantly to spread to the direction of lower concentration water cut; Rely on moisture and gasiform directed flow in the soil, water-soluble heavy metal ion is assembled to the negative pressure region of cavity, when heavy metal ion gets into the heavy metal chelating agent of loading in the cavity in company with steam; Heavy metal ion is hunted down; Be enriched in the heavy metal chelating agent, the heavy metal chelating agent of loading in the periodic replacement cavity is along with Negative Pressure Difference that forms in the soil and gradient gradient of liquids; Impel the liquid of heavy metal continuously near cavity, to move rapidly; Heavy metal ion is caught by the heavy metal chelating agent in the cavity, and the moisture and the steam that get into cavity are told the mobile gas evaporation to take away, and can purify reparation continuously.Use the rainy season in summer the present invention can practice thrift great amount of water resources if utilize, in several hours, will purify and repair National standard with interior heavy metal content up to the lead pollution of soil total metals that is several times as much as national standard.
The heavy metal contamination that the present invention can be used in the water body purify to be repaired, filtration unit of the present invention is immersed in the contaminated by heavy metals water body, on the water surface or ground the interface of cavity one end is connected with water pump; Interface complete closed with the cavity the other end forces current to be flowed through and has loaded in the three-dimensional space of heavy metal chelating agent, is pooled in the cavity; Rely on the power of water pump that contaminated by heavy metals water body is pumped from pump outlet; Turn back to the far-end of water body, through circulating water body, the heavy metal in the water of the heavy metal chelating agent of flowing through by enrichment in trapping agent; Water purification turns back in the far-end water body; Circularly purifying through after a while can make the heavy metal in the water body descend rapidly, and is finally up to standard.
Positively effect of the present invention:
Device of the present invention is by parallel connection or be connected into yi word pattern or snakelike purification reparation array; Put into contaminated by heavy metals soil and water; On an end interface of this array, connect any mechanical driver unit (blower fan, vacuum fan, gas blower, vacuum pump, induced draft fan, aerofoil fan, impeller pump, slag stock pump, topping-up pump, recycle pump) that can produce negative pressure at cavity filtration in-core of the present invention; Utilize heavy metal chelating agent to load the heavy metal that layer captures polluted water and soil, can purify effectively and repair contaminated by heavy metals soil and water; Apparatus of the present invention novel structure is simple, easy to implement the method.Has the large-scale application prospect.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a structure A-A sectional view of the present invention.
Fig. 3 is that the present invention is linked to be snakelike purification reparation array with the U-shaped connecting tube with water and the series connection of heavy metal pollution of soil fast purification reparation filtration unit, and connection produces the connection synoptic diagram of the mechanical driver unit (like machine blower fan, vacuum fan, gas blower, vacuum pump, induced draft fan, aerofoil fan, impeller pump, slag stock pump, topping-up pump, recycle pump) of negative pressure on connecting tube one end interface of this purification reparation array.
Fig. 4 is that the present invention is linked to be purification reparation array with straight-through shape connecting tube with water and the parallel connection of heavy metal pollution of soil fast purification reparation filtration unit, purifies the connection synoptic diagram of the mechanical driver unit (blower fan, vacuum fan, gas blower, vacuum pump, induced draft fan, aerofoil fan, impeller pump, slag stock pump, topping-up pump, recycle pump) of connection generation negative pressure on connecting tube one end interface of repairing array at this.
Embodiment:
Below in conjunction with accompanying drawing the present invention is done further detailed description.
Like Fig. 1,2,3, shown in 4.The present invention's design is crossed filter core 2 by capping 1 and cavity and is constituted; Capping 1 company of being provided with mouth 3; It is cylindrical or oval or prismatic connecting mouth 3; Cavity is crossed has at least one deck heavy metal chelating agent to load layer 4 in the filter core 2, also can based on the heavy metal pollution kind what, have the multilayer heavy metal chelating agent to load layer 4;
Having two-layer above (contain two-layer, have at least one deck heavy metal chelating agent to load layer 4) cavity crosses filter core 2 and also can be described as compound cavity fast purification and repair overanxious device.The cavity inside and outside shell of this overanxious device is by the metallic substance of air-and water-permeable, stupalith, and plastic material, macromolecular material are constructed and are formed; Compound cavity has at least one deck to load heavy metal chelating agent according to the contamination class of heavy metal; The two ends that cavity is crossed filter core 2 add capping 1; Offer the cylindrical mouth 3 that connects in the capping 1; Adopt straight-through shape or U-shaped connecting tube to connect mouthfuls 3 overanxious device is repaired in single purification is that cavity is crossed filter core 2 parallel connections or is connected into yi word pattern or array is repaired in snakelike purification through cylindrical, on an end interface of this array connecting tube, connect any mechanical driver unit that can in cavity is crossed filter core 2, produce negative pressure (like blower fan, vacuum fan; Gas blower; Vacuum pump, induced draft fan, aerofoil fan) repair contaminated by heavy metals soil in order to purify.
On an end interface of this array connecting tube, connect water pump (like impeller pump, slag stock pump, topping-up pump, recycle pump) and repair contaminated by heavy metals water body in order to purify.Change cavity through two ends capping 1 that can be for convenience detach and cross the heavy metal chelating agent that heavy metal chelating agent filling layer 4 is loaded in the filter core 2.
This cavity is crossed filter core 2 or is cylindrical, or is prismatic, or is the star cylindricality; Cavity crosses filter core 2 shells and heavy metal chelating agent filling layer 4 shell can be two shells, also can share a shell.
Heavy metal chelating agent is loaded the heavy metal chelating agent of loading in the layer 4 can adopt polymeric particles material, inorganic particulate material, fibrous material respectively based on different heavy metal kinds.
The present invention can be used for the soil sanitation reparation;
Many institutes are many to be known; The chemical combination form that different heavy metals exists in soil is different; But can be absorbed the heavy metal that pollutes agricultural-food by soil vegetative cover must be that the water soluble ion attitude could be moved between soil and plant, wants to purify the heavy metal that exists in the rehabilitating soil, needs a kind of reason; It is the reason that the orientation of metals ion in soil moves; The reason of this directional migration relies on the method for chemistry to be difficult to reach, though moving electrical method can promote the heavy metal cation directional migration, required time is huge with power consumption.
The present invention utilizes moisture to think the lower concentration diffusion principle the three-dimensional of soil by high density; The artificial ventilative water permeability that utilizes soil; Negative pressure space is set in soil, and the flow at high speed that makes cavity of the present invention cross the air in the filter core 2 is constantly taken away the part moisture in the soil, makes moisture distribution formation concentration difference in the soil; Impel the moisture of high-moisture constantly to spread to the direction of lower concentration water cut; Rely on moisture and gasiform directed flow in the soil, the negative pressure region that water-soluble heavy metal ion is crossed filter core 2 to cavity of the present invention is assembled, when heavy metal ion gets into the heavy metal chelating agent of loading in the cavity of the present invention in company with steam; Heavy metal ion is hunted down; Be enriched in the heavy metal chelating agent, regularly replace cavity of the present invention and cross the heavy metal chelating agent of loading in the filter core 2, can purify reparation continuously.Use the rainy season in summer the present invention can practice thrift great amount of water resources if utilize, in several hours, will purify and repair National standard with interior heavy metal content up to the lead pollution of soil total metals that is several times as much as national standard.
The heavy metal contamination that the present invention can be used in the water body purifies reparation;
Cavity of the present invention is crossed filter core 2 is immersed in the contaminated by heavy metals water body, on the water surface or ground company's mouth 3 of cavity of the present invention being crossed an end in the filter core 2 be connected with water pump through connecting tube, cavity of the present invention is crossed company's mouth 3 complete closed of filter core 2 the other ends; Force current to be flowed through and loaded in the three-dimensional space of heavy metal chelating agent; Be pooled to cavity of the present invention and cross in the filter core 2, rely on the power of water pump that contaminated by heavy metals water body is pumped from pump outlet, turn back to the far-end of water body; Pass through circulating water body; Flow through heavy metal in the water of heavy metal chelating agent by enrichment in trapping agent, water purification turns back in the far-end water body, through circularly purifying after a while; Heavy metal in the water body is descended rapidly, finally up to standard.
Embodiment one
As shown in Figure 3, before being about to rainfall, the present invention who has loaded heavy metal chelating agent is connected into snakelike array with the U-shaped pipe connecting with a plurality of the present invention; The groove that places the soil plough to open is embedded in around the present invention with the soil heap of digging on every side, in soil, mixes a certain amount of acid stripping agent; The capping of sealing the present invention one end, the present invention is connected with vacuum fan through connecting tube, utilizes the rainwater when raining that the water-insoluble heavy metal chemical combination attitude in the soil is converted into water-soluble chemical combination attitude; Start vacuum fan; Continuously exhausting is crossed cavity of the present invention and is formed negative pressure space in the filter core 2, forces near near the water-soluble heavy metal the present invention and crosses the heavy metal chelating agent direction enrichment of loading in the filter core 2 to cavity of the present invention, because the moisture among action of negative pressure the present invention is with the air evaporation of running off fast; Form the concentration difference of moisture in the soil; Cause near the low concentration region of high density moisture the present invention to spread rapidly, this diffusion causes heavy metal ion with the current orientation movement, finally arrives negative pressuren zone of the present invention; Moisture evaporation, heavy metal is hunted down in the present invention.
Embodiment two
As shown in Figure 4, a plurality of shutoff one end cappings 1 of the present invention cylindrical is connected mouthfuls 3, the other end capping 1 of the present invention cylindrical is connected mouthfuls 3 be connected in parallel on the straight-through shape pipeline that has a plurality of channel interfaces; Should lead directly to the shape pipeline and be connected with water pump, the present invention of parallel connection is loaded heavy metal chelating agent after, be immersed in the contaminated water body; Start water pump, force water body to get into the present invention and filter, the water after heavy metal chelating agent is overanxious gets into water pump through the water pump import; Be pumped into the water body far-end from exit of pump; Circulation pumping water body makes in the water body heavy metal by trapping agent enrichment of the present invention, purifies the purpose of repairing polluted-water thereby reach.
Embodiment three
Embodiment of the present invention one is implemented in water and soil with embodiment two jointly.
Claims (3)
1. water and heavy metal pollution of soil fast purification are repaired filter method; It is characterized in that; With connecting tube two above water and heavy metal pollution of soil fast purification being repaired filtration unit parallel connection or series connection is linked to be to purify and repairs array; Purify the mechanical driver unit that connects the generation negative pressure on connecting tube one end interface of repairing array at this; The cavity that water and heavy metal pollution of soil fast purification are repaired in the filtration unit is crossed generation negative pressure in the filter core (2), crosses the interior heavy metal chelating agent of filter core (2) through cavity and loads the heavy metal that layer (4) captures polluted water and soil, purifies and repairs contaminated by heavy metals water and soil.
2. a kind of water according to claim 1 and heavy metal pollution of soil fast purification are repaired filter method; It is characterized in that; With straight-through shape connecting tube water and the parallel connection of heavy metal pollution of soil fast purification reparation filtration unit are linked to be purification reparation array; Purify the mechanical driver unit that connects the generation negative pressure on connecting tube one end interface of repairing array at this; The mechanical driver unit that produces negative pressure is blower fan or vacuum fan or gas blower or vacuum pump or induced draft fan or aerofoil fan or impeller pump or slag stock pump or topping-up pump or recycle pump; The cavity that water and heavy metal pollution of soil fast purification are repaired in the filtration unit is crossed filter core (2) generation negative pressure; Cross the interior heavy metal chelating agent of filter core (2) through cavity and load the heavy metal that layer (4) captures polluted water and soil, purify and repair contaminated by heavy metals water and soil.
3. a kind of water according to claim 1 and heavy metal pollution of soil fast purification are repaired filter method; It is characterized in that; With the U-shaped connecting tube water and the series connection of heavy metal pollution of soil fast purification reparation filtration unit are linked to be snakelike purification reparation array; Purify the mechanical driver unit that connects the generation negative pressure on connecting tube one end interface of repairing array at this; The mechanical driver unit that produces negative pressure is blower fan or vacuum fan or gas blower or vacuum pump or induced draft fan or aerofoil fan or impeller pump or slag stock pump or topping-up pump or recycle pump; The cavity that water and heavy metal pollution of soil fast purification are repaired in the filtration unit is crossed filter core (2) generation negative pressure; Cross the interior heavy metal chelating agent of filter core (2) through cavity and load the heavy metal that layer (4) captures polluted water and soil, purify and repair contaminated by heavy metals water and soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110175151 CN102320686B (en) | 2011-06-27 | 2011-06-27 | Device and method for rapidly purifying, repairing and filtering heavy metal polluted water and soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110175151 CN102320686B (en) | 2011-06-27 | 2011-06-27 | Device and method for rapidly purifying, repairing and filtering heavy metal polluted water and soil |
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| Publication Number | Publication Date |
|---|---|
| CN102320686A CN102320686A (en) | 2012-01-18 |
| CN102320686B true CN102320686B (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110175151 Expired - Fee Related CN102320686B (en) | 2011-06-27 | 2011-06-27 | Device and method for rapidly purifying, repairing and filtering heavy metal polluted water and soil |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992417B (en) * | 2012-08-29 | 2014-10-08 | 华北电力大学 | Decision-making method for in-situ remediation of oil-contaminated underground water |
| CN104941453B (en) * | 2015-05-29 | 2017-10-03 | 成都易态科技有限公司 | A kind of membrane filtration module and assembling structure |
| CN105598152A (en) * | 2015-11-05 | 2016-05-25 | 深圳多元拓展环保科技有限公司 | Soil heavy metal pollution in-suit capturing treating method |
| CN107335683B (en) * | 2017-09-04 | 2023-02-28 | 长春工程学院 | Electric remediation system for heavy metal contaminated soil and control method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100566817C (en) * | 2007-10-15 | 2009-12-09 | 北京航空航天大学 | A kind of absorption Biosorption of Heavy Metals agent and preparation method thereof |
| CN201729733U (en) * | 2010-07-12 | 2011-02-02 | 李广军 | Filter element |
| CN202139100U (en) * | 2011-06-27 | 2012-02-08 | 吴正建 | Quick purification, remediation and filtration device for water and soil heavy metal pollution |
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