CN203256034U - PRB (Permeable Reactive Barrier) device for repairing groundwater pollution - Google Patents
PRB (Permeable Reactive Barrier) device for repairing groundwater pollution Download PDFInfo
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- CN203256034U CN203256034U CN 201320262674 CN201320262674U CN203256034U CN 203256034 U CN203256034 U CN 203256034U CN 201320262674 CN201320262674 CN 201320262674 CN 201320262674 U CN201320262674 U CN 201320262674U CN 203256034 U CN203256034 U CN 203256034U
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- prb
- groundwater pollution
- filled column
- water
- pollution reparation
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Abstract
The utility model provides a PRB (Permeable Reactive Barrier) device for repairing groundwater pollution. The PRB device comprises a PRB arranged around a water gathering ground of a water source, wherein the PRB comprises filler columns which are in discontinuous distribution and penetrate in a water-bearing layer, a standby reaction region is arranged around the filler columns, water purifying plants with developed root systems are planted on a soil layer above the filler columns, a water-resisting bottom plate is arranged below the filler columns, the PRB is in an annular structure, and fillers in the filler columns are in laminar structures consisting of fermented barks and sand. The PRB device has the beneficial effects of low cost, small capital construction cost, long operation time, high efficiency of purifying underground water polluted by halohydrocarbon and nitrate, and convenience in replacement after reaching a service life period, and can be changed in variety according to the actual condition; and advantage enhancing operation efficiency of a plant repairing technology is fully utilized.
Description
Technical field
The utility model relates to contaminated underground water recovery technique, relates in particular to a kind of groundwater pollution reparation PRB device.
Background technology
The most of underground water of China has been subject to the pollution of organic and inorganic hazardous and noxious substances in various degree, and wherein the modal pollutent of two classes is halohydrocarbon and nitrate.Halohydrocarbon such as trieline, zellon, trichloromethane, tetracol phenixin group derive from factory, and nitrate is mainly derived from using of nitrogenous fertilizer.It is larger that existing PRB (permeable reactive barrier) technology is affected by on-the-spot hydrogeological conditions, if do not carry out targetedly optimization design, operation may be failed, and working life is shorter, and for the second time construction is increased difficulty, raise the cost, also will deal carefully with primary inactivation filler, otherwise can cause environmental pollution.
The utility model content
The purpose of this utility model is to overcome weak point of the prior art, and a kind of groundwater pollution reparation PRB device is provided.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
A kind of groundwater pollution reparation PRB device, be included in the PRB that waterhead area catchment area (1) arranges on every side, the filled column (3) of (6) forms PRB through the waterbearing stratum by discontinuously arranged, be provided with reaction zone for subsequent use (4) around the filled column, the pedosphere (5) of filled column top is planted the water purification plant (2) that is implanted with well developed root system, and the filled column below is water proof base plate (7).
Further, described PRB lines up ring texture by many filled columns (3).
Further, ring texture is monocycle or many rings, preferably, many rings are 2 rings or 3 rings, can be according to the density degree of filled column in the density degree of the number of rings of practical situation change structure, many interannulars, the monocycle, minimum spacing between single loop post is not less than the diameter of single filled column, is convenient to adjust local flow field, to be applicable to the Water quality restoration under different contamination characteristics, the different hydrogeological conditions.
Further, form laminate structure by fermentation bark (8) and sand (9) in the described filled column.
Further, the volume ratio of fermentation bark (8) and sand (9) was more than or equal to 1: 1.
The utlity model has following beneficial effect:
The many row's ring-type PRB devices of groundwater pollution reparation of the present utility model, with low cost, the capital construction less investment, take full advantage of the advantage of having utilized phytoremediation technology and strengthen operation usefulness, working time is longer, high for the ground water cleaning efficient of halohydrocarbon and azotate pollution, can wake up with a start diversity according to practical situation and change, reach change after working life convenient.
Description of drawings
Fig. 1 is underground water repair system structure iron provided by the utility model;
Fig. 2 is underground water repair system sectional view provided by the utility model;
Fig. 3 is underground water repair system vertical view provided by the utility model;
Fig. 4 is filled column structure iron provided by the utility model.
Nomenclature:
1: waterhead area catchment area 2: water purification plant 3: filled column 4: reaction zone for subsequent use
5: pedosphere 6: waterbearing stratum 7: water proof base plate 8: fermentation bark 9: sand
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
As a kind of embodiment of the present utility model, consult Fig. 1, Fig. 2 and Fig. 3, the many row's ring-type PRB devices of a kind of groundwater pollution reparation, be provided with PRB (permeable reactive barrier) around being included in waterhead area catchment area 1,6 filled column 3 forms PRB through the waterbearing stratum by discontinuously arranged, be provided with reaction zone 4 for subsequent use around the filled column 3,5 kinds of water purification plants 2 that are implanted with well developed root system of the pedosphere of filled column 3 tops, filled column 3 belows are water proof base plate 7, PRB (permeable reactive barrier) is ring structure, can be according to the number of rings of practical situation change structure, the density degree of many interannulars, the density degree of filled column 3 in the monocycle, minimum spacing between single loop post is not less than the diameter of single filled column 3, be convenient to adjust local flow field, to be applicable to different contamination characteristics, Water quality restoration under the different hydrogeological conditionss.
Filler in the filled column 3 specifically carries out ratio according to practical situation and regulates more than or equal to 1: 1 for the laminate structure of fermentation bark 8 and sand 9 compositions, the volume ratio of fermentation bark 8 and sand 9.
Further described filled column 3 can arrange new filled column 3 at reaction zone 4 for subsequent use after reaching work-ing life or losing activity, former filled column does not need to dig out processing, can utilize the technology such as curtain grouting that it is wrapped up original position and place.
During work, be subjected to the underground water of halohydrocarbon and azotate pollution under the effect of natural hydraulic gradient or artificial pumping's power, from compiling to waterhead area catchment area 1 all around, when it flows through filled column 3 and water purification plant 2 district, the fermentation bark 8 of filled column 3 inner lamination structures and sand 9 fully contact with pollutent in the underground water, effect by anaerobion, remove the oxidation state pollutent in the underground water, industrial pollutants such as halohydrocarbon and nitrate, organic matter in the fermentation bark 8 can be used as electron donor(ED), promote the deoxidization, degradation of water oxygen attitude pollutent, removal efficient to trieline and nitrate can reach respectively 99% and 95%, and the effect of purified industrial polluted underground water is very remarkable.After PRB reaches working life or lost efficacy, utilize the remaining space between the single loop post, namely set up new filled column 3 at reaction zone 4 for subsequent use, and former filled column 3 is carried out the fixing processing of original position, thereby system recovery is normally moved.
In sum; the utility model only is illustrated the embodiment of groundwater pollution reparation with the PRB device; but the utility model is not limited to this; it will be appreciated by those skilled in the art that in the situation that does not break away from the protection domain that claims of the present utility model put down in writing and to change arbitrarily and to revise.
Claims (7)
1. groundwater pollution reparation PRB device, be included in the PRB that waterhead area catchment area (1) arranges on every side, it is characterized in that, the filled column (3) of (6) forms PRB through the waterbearing stratum by discontinuously arranged, be provided with reaction zone for subsequent use (4) around the filled column, the pedosphere (5) of filled column top is planted the water purification plant (2) that is implanted with well developed root system, and the filled column below is water proof base plate (7).
2. groundwater pollution reparation PRB device as claimed in claim 1 is characterized in that, described PRB lines up ring texture by many filled columns (3).
3. groundwater pollution reparation PRB device as claimed in claim 2 is characterized in that, described ring texture is monocycle or many rings.
4. groundwater pollution reparation PRB device as claimed in claim 3 is characterized in that, described many rings are 2 rings or 3 rings.
5. groundwater pollution reparation PRB device as claimed in claim 3 is characterized in that the minimum spacing between the filled column of monocycle is not less than the diameter of single filled column.
6. groundwater pollution reparation PRB device as claimed in claim 1 or 2 is characterized in that, forms laminate structure by fermentation bark (8) and sand (9) in the described filled column.
7. groundwater pollution reparation PRB device as claimed in claim 6 is characterized in that, the volume ratio of fermentation bark (8) and sand (9) was more than or equal to 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320262674 CN203256034U (en) | 2013-05-15 | 2013-05-15 | PRB (Permeable Reactive Barrier) device for repairing groundwater pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320262674 CN203256034U (en) | 2013-05-15 | 2013-05-15 | PRB (Permeable Reactive Barrier) device for repairing groundwater pollution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203256034U true CN203256034U (en) | 2013-10-30 |
Family
ID=49468618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320262674 Expired - Fee Related CN203256034U (en) | 2013-05-15 | 2013-05-15 | PRB (Permeable Reactive Barrier) device for repairing groundwater pollution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203256034U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923886A (en) * | 2016-03-17 | 2016-09-07 | 深圳市东华园林股份有限公司 | Sewage recycling purification treatment system and method using the system |
| CN105923904A (en) * | 2016-05-20 | 2016-09-07 | 和县伊迈炭业有限责任公司 | Biological packing for domestic sewage treatment and preparation method of biological packing |
| CN112840806A (en) * | 2020-12-31 | 2021-05-28 | 霍金阁 | Agricultural seeder integrating seeding and pesticide spraying |
-
2013
- 2013-05-15 CN CN 201320262674 patent/CN203256034U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105923886A (en) * | 2016-03-17 | 2016-09-07 | 深圳市东华园林股份有限公司 | Sewage recycling purification treatment system and method using the system |
| CN105923904A (en) * | 2016-05-20 | 2016-09-07 | 和县伊迈炭业有限责任公司 | Biological packing for domestic sewage treatment and preparation method of biological packing |
| CN112840806A (en) * | 2020-12-31 | 2021-05-28 | 霍金阁 | Agricultural seeder integrating seeding and pesticide spraying |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20140515 |