CN107159697A - A kind of organic polluted soil and groundwater remediation method and medicament - Google Patents
A kind of organic polluted soil and groundwater remediation method and medicament Download PDFInfo
- Publication number
- CN107159697A CN107159697A CN201710606420.8A CN201710606420A CN107159697A CN 107159697 A CN107159697 A CN 107159697A CN 201710606420 A CN201710606420 A CN 201710606420A CN 107159697 A CN107159697 A CN 107159697A
- Authority
- CN
- China
- Prior art keywords
- soil
- pollution
- groundwater
- medicament
- underground water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
Abstract
The present invention relates to a kind of organic polluted soil and groundwater remediation method, the pollutant of the soil and groundwater is organic pollution；It the treating method comprises two parts,（1）A areas soil and groundwater overlaps contaminated area, using in situ chemical oxidation recovery technique method；（2）B areas only exist underground water pollution area, using pump-and-treat technology method.The present invention chooses a variety of recovery techniques and is combined the repair that mode carries out different zones soil and groundwater, both it can guarantee that soil and groundwater reached preferable repairing effect, and while not resulting in cross pollution, waste medicament, the shortening duration is can guarantee that again, it is cost-effective.
Description
Technical field
The present invention relates to environmental technology field, and in particular to a kind of organic polluted soil and groundwater remediation method and medicine
Agent.
Background technology
Organic polluted soil and underground water pollutant are mainly benzene, 1,2- dichloroethanes, chlorobenzene, 1,4- dichloro-benzenes, 1,
2- dichloro-benzenes, chloroform.Different recovery techniques are proposed for different pollutants.Repaiied at present using more organic polluted soil
Recovering technology method mainly has original position/dystopy chemical oxidation techniques, thermal desorption technology, cement kiln synergic processing technology, biological prosthetic
Technology, Soil leaching technology etc.；Mainly there are pump-and-treat technology, permeability using more organic contamination groundwater remediation method
React wall technology, in situ chemical oxidation technology, monitor-type Natural Attenuation technology etc..Handling process universal at present is independent uses
A kind of method processing therein.Pump-and-treat technology typically can be all used especially for groundwater remediation technology.Place internal memory
In soil and groundwater pollution, Polluted area is broadly divided into Liang Ge areas, and wherein A areas are that soil and groundwater overlaps contaminated area, B areas
For underground water pollution area（Pollution is not present in soil）.If, need to be to A all using pump-and-treat technology during groundwater remediation
Area, B areas underground water are extracted out after the completion of reparation, can carry out A areas soil remediation, can cause claim for eot, increase cost；If all
Using in situ chemical oxidation treatment technology, cross pollution can be caused to the regional soil during B areas in situ chemical oxidation, simultaneously
Oxidating chemicals part is reacted with soil with organic matter, causes medicament to waste.
Recovery technique of the present invention is directed to on-site actual situations, and a variety of recovery techniques of selection are combined mode and carry out soil and ground
Soil overlaps Polluted area with underground water in lower water reparation, place, it is considered to which water and soil combination improvement can effectively shorten duration and section
About cost, is handled simultaneously using soil with underground water -- in situ chemical oxidation recovery technique；Underground water is individually dirty in place
Contaminate region, it is considered to using easily causing disturbance in situ chemical oxidation processing procedure to soil in water-bearing layer, cross pollution, using taking out
Go out treatment technology to be handled.
The content of the invention
To solve the above problems, a variety of recovery techniques of present invention selection are combined mode and carry out different zones soil and underground
The repair of water, both can guarantee that soil and groundwater reached preferable repairing effect, and do not result in cross pollution, waste medicament
While, the shortening duration is can guarantee that again, it is cost-effective.
Technical scheme：
A kind of organic polluted soil and groundwater remediation method, the pollutant of the soil and groundwater is organic pollution；
It the treating method comprises two parts,（1）A areas soil and groundwater overlaps contaminated area, using in situ chemical oxidation recovery technique
Method；（2）B areas only exist underground water pollution area, using pump-and-treat technology method.
It is preferred that, the organic pollution is benzene, 1,2- dichloroethanes, chlorobenzene, Isosorbide-5-Nitrae-dichloro-benzenes, 1,2- dichloro-benzenes and chlorine
One or more in imitative.
It is preferred that, A areas soil and groundwater overlaps contaminated area and referred mainly in the range of the specified pollution depth in the region, both
There is the pollution of soil, the pollution that there is underground water again, and identical skill is used in soil and groundwater in polluter processing procedure
Art is handled；The B areas only exist underground water pollution area and referred mainly in the range of the specified pollution depth in the region, there is underground water
Pollution, but in the absence of soil pollution.
It is preferred that, the pollution that there is soil, the pollution that there is underground water refer mainly to soil or underground water in the region
In contained pollution factor, more than repairing desired value in place.
It is preferred that, A areas soil and groundwater overlaps Polluted area in situ chemical oxidation processing method and includes following step
Suddenly,
Step one：The total amount of pollutant is detected, is sampled detection to soil and groundwater in Polluted area respectively using rig, is entered
The organic pollution total amount detection of row place；
Step 2：Medicament is weighed, and detects organic pollution concentration in place in underground water and soil respectively according to step one, is carried out
Oxidating chemicals are weighed, and to reach that medicament addition is sufficient, are handled up to standard；
Step 3：Medicament configuration, saturation aqua is deployed into by enough medicaments, treats that medicament is fully dissolved in pharmacy jar, under progress
Single stepping；
Step 4：Medicament is injected, and medicament is injected into contaminated soil using mixing pile machine, while being aided with agitating function, promoted
Injection medicament is sufficiently mixed uniformly with contaminated soil, while medicament is well mixed with underground water in soil aperture, to reach
Medicament is fully contacted with contaminated soil and underground water, it is to avoid the low phenomenon of medicament utilization rate；
Step 5：After medicament is injected in soil and groundwater, 5-7 days are stood, makes pollutant and medicament in soil and groundwater
Fully reaction is complete；
Step 6：The separately sampled detection of soil and groundwater in the region after conserving 7 days, carries out the field of next step in laboratory
Ground organic pollution total amount detection detection and analysis；
Step 7：Whether inspection department postpones soil and groundwater up to standard, will after addition medicament soil and groundwater detection data with
Place each pollutant is repaired desired value and contrasted, if detection numerical value is less than reparation desired value, that is, be considered as it is up to standard, if greatly
It is to be considered as unqualified in repairing desired value, secondary medicament addition will be carried out, self-inspection rear soil and groundwater up to standard treats acceptance test.
It is preferred that, B areas underground water pollution region pump-and-treat system method is comprised the steps of, step one：Pollution range
Inside draw water well construction, using rig shaft building, well floral tube is arranged in pollution water-bearing layer depth bounds, well depth to pollution depth bottom
Plate；
Step 2：Pumped well is numbered, and each pumped well is numbered respectively for automatic pollution scope center to periphery；
Step 3：Suction pump is opened at groundwater extraction, automatic pollution scope center to periphery successively, is carried out underground water extraction, is drawn water
During, first well water pumping of center range is first carried out, while other well SEA LEVEL VARIATIONs of observed range, treat other well water
When position is substantially reduced, periphery suction pump is opened successively and is drawn water；
Step 4：Extract underground water out to collect, drinking-water pipe is connected to collecting-tank, extract underground water out and fully enter collecting-tank；
Step 5：Extract underground water disposal out, collecting-tank connection integrated equipment for sewage treatment opens equipment and carries out Automatic Dosing,
Reaction, precipitation；
Step 6：Handle underground water to collect, sewage disposal device delivery port connects an other collecting-tank, enters underground water after processing
Row centralized collection, sampling detection, the qualified rear field repair engineering medicament that is used for is allocated.
It is preferred that, the in situ chemical oxidation treatment technology mainly carries out oxidating chemicals injection using mixing pile machine, together
When be aided with stirring, promote medicament and pollution medium（Soil or underground water）It is well mixed.
It is preferred that, the pump-and-treat technology mainly builds extraction well in pollution range, is carried out using extraction technique
Pollution medium（Refer mainly to underground water）It is drawn to sewage disposal device to be handled, sewage disposal device processing sewage is mainly used
The method that the Fenton of addition pH=11 is handled.
It is preferred that a kind of organic polluted soil and groundwater remediation method use medicament, after using medicament for alkali-activated carbonatite
Persulfate.
It is preferred that, the persulfate is sodium peroxydisulfate.
Beneficial effects of the present invention：
The present invention overlaps Polluted area due to there is two kinds of regions, respectively A areas soil and groundwater in place, and B areas are only existed
Underground water pollution region.Consider that scene is actual, A areas use in situ chemical oxidation treatment technology so that water and soil is administered simultaneously,
On the one hand avoid, water and soil is separately administered, cause claim for eot, save and repair the duration, one side water and soil is administered, adopted simultaneously
Recovery technique of the same race is used, is handled in the lump, rehabilitation cost is saved；B areas use pump-and-treat technology simultaneously, on the one hand avoid
The same with A areas, using in-situ treatment technology, in medicament injection process, medicament reacts with the soil organism in water-bearing layer, wastes medicine
Agent, on the one hand to reuse after groundwater treatment, it is to avoid configure medicament using other water sources, cause the wasting of resources, on the one hand
Effectively prevent injection medicament during to periphery pollution disturb, cause secondary pollution.Two parts region, because each is dirty
Dye situation is different, the method being combined using a variety of recovery techniques, effectively save cost, duration, while repairing effect is preferable.
Brief description of the drawings
Fig. 1 is pollution range block plan；
Fig. 2 is soil and groundwater in situ chemical oxidation Technology Roadmap；
Fig. 3 is underground water pump-and-treat technology route map；
Fig. 4 is extraction well well spacing schematic diagram；
Fig. 5 is in situ chemical oxidation cloth point diagram.
In accompanying drawing, 1-A areas；2-B areas；3- monitoring wells, pumped well；The 4- radiuses of influence；5- well spacings；6- injection points；7- is not noted
Exit point position；8- injection point position.
Embodiment
The present invention carries out processing organic polluted soil by taking Guangdong insecticide factory contaminated site as an example and underground water method is introduced.
At the scene on the basis of investigation result, polluted underground water overlaps pollution with soil and gathers underground water respectively in selection place
And pedotheque, it is W1 to choose groundwater sample numbering, and it is S1 to choose pedotheque numbering；Only exist the choosing of underground water pollution region
Take groundwater sample, numbering W2.1, table 2 is shown in Table on W1, S1, W2 sample experiments room testing result.
Table 1 tests selected underground water and soil sample point position characteristic contamination testing result mg/kg
Soil sample point position characteristic contamination testing result mg/kg selected by table 1
Water sampling point position characteristic contamination testing result ug/L under the chosen place of table 2
According to the actual pollution condition in scene, wherein A areas exist underground water pollution and the pollution of soil pollution two media, i.e. soil with
Underground water overlaps contaminated area；B areas only exist underground water pollution, i.e. underground water pollution area.Contaminated soil and underground water can in place
Adult and children can be caused harm, there is larger health risk.Therefore, adopted for the regional pollution soil and groundwater
Based on pollution sources treatment technology, from source reduction pollution, the harm to human health and environment is eliminated.Scene is mainly mud
Matter soil is mingled with coarse sands layer, while underground water buried depth is 0.5-1.0m, geological condition is complicated, therefore final determination A areas are using in situ
Chemical oxidation recovery technique carries out the improvement of soil and groundwater, and B areas carry out the improvement of underground water using pump-and-treat technology.
Hydrogeologic condition in the place：Fixed level buried depth about 2-4m in place, wherein fill stratum are aeration zone, 2-
13m Muddy Bottoms layer infiltration coefficient is smaller, is 10-5The order of magnitude, but saturation state is in due to itself and water is released, it is aqueous to dive under water
Layer；It is silty clay, muck soil and coarse sand in 13-20m depth boundses, wherein muck soil is in saturation state and releases water,
For phreatic aquifer, coarse sand is phreatic aquifer, and silty clay is relative water resisting layer, but due to farinose argillic horizon skewness
Even, hydraulic connection is closer between making each water-bearing layer；20-29m is chiltern cohesive soil, phreatic aquifer；29-34.5m it is complete
Weathered granite, is water barrier, and whole place is distributed, thus in place phreatic aquifer bottom plate buried depth to 29m or so.Respectively
The Characteristics of Groundwater of rock-soil layer is shown in Table 3.
The Characteristics of Groundwater table of each rock-soil layer of table 3
A areas soil and groundwater overlaps contaminated area in situ chemical oxidation and comprised the following steps：
Step one：The total amount of pollutant is detected, is sampled detection to soil and groundwater in Polluted area respectively using rig, is sent
Site characteristic pollutant benzene, 1,2- dichloroethanes, chlorobenzene, 1,2- dichloro-benzenes, 1,4- dichloro-benzenes, chloroform, stone are carried out to laboratory
Petroleum hydrocarbon, to chloro-o-toluidine total amount detect；
Step 2：Medicament is weighed, and detects characteristic contamination concentration in place in underground water and soil respectively according to step one, is carried out
Oxidating chemicals are weighed, and to reach that medicament addition is sufficient, are handled up to standard；
Step 3：Medicament configuration, saturation aqua is deployed into by enough medicaments, treats that medicament is fully dissolved in pharmacy jar, under progress
Single stepping；
Step 4：Medicament is injected, and medicament is injected into contaminated soil using mixing pile machine, while being aided with agitating function, promoted
Injection medicament is sufficiently mixed uniformly with contaminated soil, while medicament is well mixed with underground water in soil aperture, to reach
Medicament is fully contacted with contaminated soil and underground water, it is to avoid the low phenomenon of medicament utilization rate；
Step 5：After medicament is injected in soil and groundwater, 7 days are stood, pollutant and medicament in soil and groundwater is filled
Divide reaction complete；
Step 6：The separately sampled detection of soil and groundwater in the region after conserving 7 days, carries out the field of next step in laboratory
Ground characteristic contamination benzene, 1,2- dichloroethanes, chlorobenzene, 1,2- dichloro-benzenes, 1,4- dichloro-benzenes, chloroform, petroleum hydrocarbon, to the adjacent toluene of chlorine
The detection detection and analysis of amine total amount.
Step 7：Whether inspection department postpones soil and groundwater up to standard, will soil and groundwater detection number after addition medicament
According to each pollutant of place repair desired value contrasted, if detection numerical value be less than reparation desired value, that is, be considered as it is up to standard, if
If being to be considered as unqualified more than desired value is repaired, secondary medicament addition will be carried out.Self-inspection rear soil and groundwater up to standard is waited to check and accept
Detection.
Further, the underground water pollution area of B areas pump-and-treat system is comprised the steps of：
Step one：Drawn water in pollution range well construction, using rig shaft building, well floral tube is arranged at pollution water-bearing layer depth bounds
It is interior, well depth to pollution depth bottom plate；
Step 2：Pumped well is numbered, and each pumped well is numbered respectively for automatic pollution scope center to periphery, such as 1#,
2#...。
Step 3：Suction pump is opened at groundwater extraction, automatic pollution scope center to periphery successively, carries out underground water extraction,
In pump process, center range 1# well water pumpings are first carried out, while other well SEA LEVEL VARIATIONs of observed range, treat other well water
When position is substantially reduced, periphery suction pump is opened successively and is drawn water.
Step 4：Extract underground water out to collect, drinking-water pipe is connected to collecting-tank, extract underground water out and fully enter collecting-tank.
Step 5：Extraction underground water disposal, collecting-tank connection integrated equipment for sewage treatment is opened equipment and add automatically
Medicine, reaction, precipitation etc..
Step 6：Handle underground water to collect, sewage disposal device delivery port connects an other collecting-tank, to underground after processing
Water carries out centralized collection, and sampling detection is qualified rear for the allotment of field repair engineering medicament.
In situ chemical oxidation reparation and pump-and-treat system reparation add soil and groundwater characteristic contamination after medicament and detect number
According to being shown in Table 4, table 5.
Table 4 adds soil characteristic pollutant test data mg/kg after medicament
Water sampling point position characteristic contamination testing result ug/L under the chosen place of table 5
It can be seen from data are detected, soil and groundwater is all up to standard after reparation, and repairing effect is preferable.
In this contaminated site there are two kinds of pollution mediums of underground water and soil in supplementary material and kerosene tank area, and pollution depth is equal
Both there is soil pollution for 5-14m, wherein a-quadrant 5-14m, there is underground water pollution again, B regions 5-14m only exists underground water
Pollution, soil major pollutants are benzene, 1,2- dichloroethanes, chlorobenzene, 1,2- dichloro-benzenes, Isosorbide-5-Nitrae-dichloro-benzenes, chloroform, petroleum hydrocarbon
（C10-C16、C17-C36）, underground water major pollutants are benzene, 1,2- dichloroethanes, chlorobenzene, 1,2- dichloro-benzenes, Isosorbide-5-Nitrae-dichloro
Benzene, chloroform, it is as follows using technology path according to contaminated site feature and pollutant characteristic：
A areas carry out the reparation of soil and groundwater using in situ chemical oxidation method, need repaired area 472m2, repair earth volume
About 4248m3, repair underground water about 1061m3。
B areas carry out the reparation of underground water using pump-and-treat system, need repaired area 356m2, repair underground water about 802m3。
The repair early stage such as in situ chemical oxidation and pump-and-treat system, need to carry out levelling of the land, it is ensured that periphery communications and transportation
Convenient, water power access conditions is complete.Water-stop curtain is built at pollution range maximum boundary, is prevented in pollution periphery and pollution range
Outer hydraulic connection closely, causes secondary pollution, is isolated while building underground water on the outside of water-stop curtain, pollution range, it is impossible to enter
In row pollution range, it can effectively control to repair water.
Underground water pump-and-treat system work early stage, also needs to be stripped well construction.
Live groundwater extraction well system is mainly laid in underground water pollution regional extent, automatic pollution plumage in pollution range
Center to border, carries out triangle and lays extraction well.
Drilling, shaft building and pumping and washing process reference《Code for investigation of geotechnical engineering》（B50021）、《THE HYDROGEOLOGICAL RECONNAISSANCE OF WATER-SUPPLY prospecting rule
Model》（GB 50027-2001）、《THE HYDROGEOLOGICAL RECONNAISSANCE OF WATER-SUPPLY is drilled and sinking shaft operational procedure》（CJJ 13-87）、《Groundwater environment is supervised
Survey technology specification》（HJT 164-2004）And《Contaminated site risk assessment technology directive/guide》（HJ 25.3-2014）Carry out.
1. extraction well construction principle
A repairs depth according to early stage and selected with floor area progress material selection and well building method, improves polluted underground water and extracts out
Efficiency.
B pumped wells are installed according to from high pollution areas to low stain zone sequence.General high pollution areas is located at Pollution Plume
Middle part, can be drawn water after installation, it is to avoid serious pollution area underground water is to low stain regional diffusion.
C shaft buildings waste liquid and scrap are forbidden reuse and arbitrarily abandoned.
2. well construction is extracted
Pumped well uses direct swinging drilling method, and the initial casing diameter that rig is used is Φ 200mm, in drilling process to the greatest extent
Amount avoids casing diameter variable, and when that must carry out reducing, whole hole sleeve caliber is no less than Φ 105mm.The well casing of use is a diameter of
Φ75-100mm.Guarantee, which is enclosed, fills out thickness of filter bed and is not less than 50mm.Zenithal angle of hole deflection must not exceed 1 °.Using flushing liquor abrasion drill
When entering pore-forming, crept into as far as possible using clear water, prohibit the use of other additives；When hole wall is unstable, temporary casing retaining wall should be used.
3. well casing requirement
General to use the crosscutting seam filter pipe of PVC well materials, screen slot width determines that this place can be used according to water-bearing layer soil particle diameter
0.2mm or so, or twine silk embedding formula filtering layer using 80 mesh are not less than.Thread connection is preferably used between well casing, and is added at screw thread
Sealing ring or winding teflin tape sealing.Organic bond is prohibitted the use of to be bonded.Drill and reach after design requirement, lower going-into-well
Guan Qianying is punched out, changes slurry.Punching drilling rod should be transferred to bottom hole during punching, with big pump amount punching deslagging, treat rock slag in hole
Emptying.
From bottom to top, well casing is installed according to sediment tube, filter pipe, real pipeline section arrangement, and this project groundwater remediation depth is
5-14m, therefore, sediment tube are related to buried depth 14.0-14.5m, and filter pipe buried depth 5-14m, real pipeline section is connected to filter pipe with up to
Earth's surface is properly injected and monitoring resultses height.
5. filter material layer is installed
From bottom to top, sediment tube and filter pipe periphery need to be tamped with filtrate.Enclose the thickness for filling out filtrate, no less than 50mm.Filtering
Conduit tripping in wellhole is preferably used together in layer material with clear water, it is also possible to manually slowly uniformly insert well casing and the borehole wall from well casing surrounding
Between gap.During installation, the depth at the top of filter layer should be gone through and filter layer material usage is examined, filter layer is determined
Material is not built bridge, it is to avoid the hole of ring-type filtering layer unstability occur.
6. extraction well annular gap is closed
Annular seals thickness degree typically preferably uses cement, clay to be sealed.
When being insulated using cement mortar, the clay or bentonite bed of at least 20cm thickness should be inserted above filter layer as slow
Layer is rushed, prevents cement mortar from being entered by gravel in filter and well., need to be under leather hard from well casing when being sealed using clay
Surrounding is slowly inserted.Forbid to use the material around landwaste and pumped well as pumped well backfilling material.
Well-flushing should be carried out after extraction well completion in time.Pumping and washing process can select air lift and pumping method is carried out.
Well spacing process is layouted increase overlapping area with triangle, and Fig. 4 is extraction well well spacing schematic diagram.
Fig. 5 is in situ chemical oxidation cloth point diagram.
A areas 5-14m soil and groundwater in situ chemical oxidations：
（1）Surveying setting-out
This engineering contaminated soil in-situ immobilization region, the coordinate flex point provided by design is to pollution border, absolute altitude, bore position etc.
High accuracy positioning and measurement are carried out, asks management to carry out an acceptance inspection after being measured.
（2）Mixing pile hole arrangement parameters
According to Polluted area repaired area, design mixing pile injection hole is using quincunx（Equilateral triangle）Mode is layouted, chemistry
Aoxidize decanting point cloth schematic diagram such as Fig. 5.Mixing pile stirs the laying of the spacing of wells, has considered stirring drill bit mechanical agitation work
Industry radius, formation information, the influence of medicament dilation angle, it is desirable to which dilation angle coverage can not occur what medicament did not reached
" blind area ".
Deep-layer stirring injection repairs specific drilling cloth setting parameter and is shown in Table 6, and mixing pile drill bit stirring radius is 0.35m, according to
Site pilot-scale experiment, its medicament can be to the stirring drilling segment distance of external diffusion one, therefore medicament dilation angle takes 0.59 m, bores
Pitch of holes is designed as 1.0 m.
The stir in situ reparation of table 6 drilling cloth setting parameter
B areas 5-14m underground water pump-and-treat systems：
（1）The selection of process program
This project uses underground water well pump-and-treat system mode, i.e., underground water is extracted out using extraction well, reuse sewage
Processing equipment is repaired to polluted underground water, be conducive to repair medicament fully with underground water haptoreaction, reach reparation purpose.
（2）The determination of well spacing
Other places of analogy, and combine between my unit other place groundwater remediation engineering experiences, this project groundwater extraction well
It is relatively reasonable away from 5.0m is adjusted to.Place pollution border periphery is taken during Specific construction water-stop curtain is set, using taking out
Carry well extracting underground water to deliver to sewage disposal system and be disposed, constantly repeatedly extractive process, underground water in the range of the radius of influence
Reparation desired value can be fully achieved.
（3）Stationing mode
Layouted using honeycomb fashion（Similar equilateral triangle is layouted）, there is between adjacent well point the overlapping of certain amplitude, can be effective
Cover all Polluted areas.
（4）The reasonability of repair mode
Project uses the recovery technique that underground water well is extracted, the renovation technique：Underground water is extracted to water tank, then through pumping of drawing water
To sewage-treatment plant, the Fenton reagent that pH=12 are added in reaction tank is sufficiently mixed, and cation is added after mixing
PAM carries out flocculation sediment, and by tail end water tank, water is produced in the overflow after ceramic membrane filter for rear water outlet up to standard.
Sewage treatment facility log is shown in Table 7.
The sewage treatment facility log of table 7 collects
| Dispose sewage side amount m3 | Deal with Time | 27% dioxygen water consumption L | Ferrous sulfate consumption kg | 15% liquid caustic soda consumption L | Calcium Oxide Dosage kg | 3 ‰ cationic PAM L | Purposes |
| 802 | 2016.12.6- 2016.12.21 | 20754 | 879 | 4395 | 4395 | 5999 | Medicament configuration |
27% hydrogen peroxide addition 2.0%-3.0%；Ferrous sulfate addition 0.05%-0.2%；15% liquid caustic soda addition 0.3%-1.0%；
Calcium oxide addition 0.3%-1.0%；3 ‰ cationic PAM addition 0.5%-1.0%.
Effect：The content of various pollutants reaches the requirement of place soil and groudwater remediation desired value after disposal.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Claims (10)
1. a kind of organic polluted soil and groundwater remediation method, it is characterised in that the pollutant of the soil and groundwater is equal
For organic pollution；It the treating method comprises two parts,（1）A areas soil and groundwater overlaps contaminated area, using in-situ chemical
Aoxidize recovery technique method；（2）B areas only exist underground water pollution area, using pump-and-treat technology method.
2. a kind of organic polluted soil according to claim 1 and groundwater remediation method, it is characterised in that described organic
Pollutant is the one or more in benzene, 1,2- dichloroethanes, chlorobenzene, 1,4- dichloro-benzenes, 1,2- dichloro-benzenes and chloroform.
3. a kind of organic polluted soil according to claim 1 and groundwater remediation method, it is characterised in that the A areas
Soil and groundwater overlaps contaminated area and referred mainly in the range of the specified pollution depth in the region, both there is the pollution of soil, and had existed again
The pollution of underground water, and handled in soil and groundwater in polluter processing procedure with constructed；The B areas are only deposited
The region is referred mainly in underground water pollution area to specify in the range of pollution depth, there is underground water pollution, but in the absence of soil pollution.
4. a kind of organic polluted soil according to claim 3 and groundwater remediation method, it is characterised in that the presence
The pollution of soil, the pollution that there is underground water refer mainly in the region contained pollution factor in soil or underground water, more than place
Interior reparation desired value.
5. a kind of organic polluted soil according to claim 1 and groundwater remediation method, it is characterised in that the A areas
Soil and groundwater overlaps Polluted area in situ chemical oxidation processing method and comprised the steps of,
Step one：The total amount of pollutant is detected, is sampled detection to soil and groundwater in Polluted area respectively using rig, is entered
The organic pollution total amount detection of row place；
Step 2：Medicament is weighed, and detects organic pollution concentration in place in underground water and soil respectively according to step one, is carried out
Oxidating chemicals are weighed；
Step 3：Medicament configuration, saturation aqua is deployed into by medicament, treats that medicament is fully dissolved in pharmacy jar, carries out next step
Operation；
Step 4：Medicament is injected, and medicament is injected into contaminated soil using mixing pile machine, while being aided with agitating function, promoted
Injection medicament is sufficiently mixed uniformly with contaminated soil, while medicament is well mixed with underground water in soil aperture；
Step 5：After medicament is injected in soil and groundwater, 5-7 days are stood；
Step 6：The separately sampled detection of soil and groundwater in the region after conserving 5-7 days；
Step 7：Whether inspection department postpones soil and groundwater up to standard, will after addition medicament soil and groundwater detection data with
Place each pollutant is repaired desired value and contrasted, if detection numerical value is less than reparation desired value, that is, be considered as it is up to standard, if greatly
It is to be considered as unqualified in repairing desired value, secondary medicament addition will be carried out, self-inspection rear soil and groundwater up to standard treats acceptance test.
6. a kind of organic polluted soil according to claim 1 and groundwater remediation method, it is characterised in that the B areas
Underground water pollution region pump-and-treat system method comprises the steps of, step one：Draw water well construction, built using rig in pollution range
Well, well floral tube is arranged in pollution water-bearing layer depth bounds, well depth to pollution depth bottom plate；
Step 2：Pumped well is numbered, and each pumped well is numbered respectively for automatic pollution scope center to periphery；
Step 3：Suction pump is opened at groundwater extraction, automatic pollution scope center to periphery successively, is carried out underground water extraction, is drawn water
During, first well water pumping of center range is first carried out, while other well SEA LEVEL VARIATIONs of observed range, treat other well water
When position is substantially reduced, periphery suction pump is opened successively and is drawn water；
Step 4：Extract underground water out to collect, drinking-water pipe is connected to collecting-tank, extract underground water out and fully enter collecting-tank；
Step 5：Extract underground water disposal out, collecting-tank connection integrated equipment for sewage treatment opens equipment and carries out Automatic Dosing,
Reaction, precipitation；
Step 6：Handle underground water to collect, sewage disposal device delivery port connects an other collecting-tank, enters underground water after processing
Row centralized collection, sampling detection, the qualified rear field repair engineering medicament that is used for is allocated.
7. a kind of organic polluted soil according to claim 5 and groundwater remediation method, it is characterised in that the original position
Chemical oxidation treatment technology mainly carries out oxidating chemicals injection using mixing pile machine, while being aided with stirring, promotes medicament and dirt
Medium is contaminated to be well mixed.
8. a kind of organic polluted soil according to claim 6 and groundwater remediation method, it is characterised in that the extraction
Treatment technology mainly builds extraction well in pollution range, and being drawn to sewage disposal using extraction technique progress pollution medium sets
It is standby to be handled, the method that sewage disposal device processing sewage is mainly handled using the Fenton of addition pH=11.
9. a kind of medicament that the organic polluted soil and groundwater remediation method described in claim 1 are used, it is characterised in that place
Medicament is used in reason method for the persulfate after alkali-activated carbonatite.
10. the medicament that a kind of organic polluted soil according to claim 9 and groundwater remediation method are used, its feature exists
In the persulfate is sodium peroxydisulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710606420.8A CN107159697B (en) | 2017-07-24 | 2017-07-24 | Organic contaminated soil and underground water remediation method and agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710606420.8A CN107159697B (en) | 2017-07-24 | 2017-07-24 | Organic contaminated soil and underground water remediation method and agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107159697A true CN107159697A (en) | 2017-09-15 |
| CN107159697B CN107159697B (en) | 2021-01-29 |
Family
ID=59818126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710606420.8A Active CN107159697B (en) | 2017-07-24 | 2017-07-24 | Organic contaminated soil and underground water remediation method and agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107159697B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497848A (en) * | 2017-09-25 | 2017-12-22 | 南京律智诚专利技术开发有限公司 | A kind of method of Determination of organochlorine pesticides in soil reparation |
| CN107808228A (en) * | 2017-09-27 | 2018-03-16 | 上海岩土工程勘察设计研究院有限公司 | A kind of groundwater extraction efficiency evaluation method of hypotonicity soil layer |
| CN108046404A (en) * | 2017-12-20 | 2018-05-18 | 浙江省环境保护科学设计研究院 | A kind of in situ chemical oxidation restorative procedure of organic pollution underground water |
| CN108393345A (en) * | 2018-03-09 | 2018-08-14 | 江苏索尔雷米环保科技有限公司 | A kind of integrated restorative procedure being used for contaminated soil and underground water |
| CN108398539A (en) * | 2018-01-30 | 2018-08-14 | 上海岩土工程勘察设计研究院有限公司 | Polluted Soil stir in situ uniformity evaluation method |
| CN108480388A (en) * | 2018-03-16 | 2018-09-04 | 昆明理工大学 | A kind of method of repairing organic polluted soil |
| CN108856275A (en) * | 2018-07-03 | 2018-11-23 | 南京万德斯环保科技股份有限公司 | A kind of method of repairing polluted soil and Organic Chemicals In Groundwater |
| CN110340133A (en) * | 2019-07-10 | 2019-10-18 | 浙江一龙环保科技有限公司 | One kind being used for organic polluted soil and underground water reducing in-situ construction method |
| CN110404956A (en) * | 2019-08-07 | 2019-11-05 | 上海洁壤环保科技有限公司 | A kind of soil and underground water complex repairation system and restorative procedure |
| CN112387771A (en) * | 2020-10-14 | 2021-02-23 | 南京格洛特环境工程股份有限公司 | In-situ chemical oxidation remediation method for benzene series contaminated soil |
| CN112570434A (en) * | 2020-11-26 | 2021-03-30 | 浙江风玉顺环保科技有限公司 | Prevention and treatment method for soil and underground water pollution in-situ injection well remediation system |
| CN114354786A (en) * | 2021-12-25 | 2022-04-15 | 生态环境部南京环境科学研究所 | Method for analyzing benzene series spatial distribution of underground water in polluted site based on pollution plume |
| CN115156270A (en) * | 2022-07-25 | 2022-10-11 | 天津华勘环保科技有限公司 | Method for repairing groundwater in pollution area of green belt |
| CN116351858A (en) * | 2023-04-11 | 2023-06-30 | 河南地矿集团中昊建设工程有限公司 | Combined control method for contaminated site soil and underground water |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174643A (en) * | 2014-08-08 | 2014-12-03 | 北京建工环境修复股份有限公司 | In-situ restoration device and in-situ restoration method of organic polluted soil and underground water |
| CN105032916A (en) * | 2015-06-08 | 2015-11-11 | 杭州大地环保工程有限公司 | In-situ injection-extraction-water replenishing circulatory disposal system for organic contaminated soil and groundwater and combined remediation method |
| CN105964677A (en) * | 2016-06-23 | 2016-09-28 | 北京建工环境修复股份有限公司 | In-situ optimization repairing method for soil and underground water through chemical oxidation high pressure injection |
| CN106799395A (en) * | 2017-02-08 | 2017-06-06 | 东南大学 | The construction method of contaminated site is repaired in a kind of environmentally friendly medicament injection in situ |
| CN206232569U (en) * | 2016-11-29 | 2017-06-09 | 北京高能时代环境技术股份有限公司 | Underground water pollution place pump-and-treat system and biological synthesis repair system |
-
2017
- 2017-07-24 CN CN201710606420.8A patent/CN107159697B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174643A (en) * | 2014-08-08 | 2014-12-03 | 北京建工环境修复股份有限公司 | In-situ restoration device and in-situ restoration method of organic polluted soil and underground water |
| CN105032916A (en) * | 2015-06-08 | 2015-11-11 | 杭州大地环保工程有限公司 | In-situ injection-extraction-water replenishing circulatory disposal system for organic contaminated soil and groundwater and combined remediation method |
| CN105964677A (en) * | 2016-06-23 | 2016-09-28 | 北京建工环境修复股份有限公司 | In-situ optimization repairing method for soil and underground water through chemical oxidation high pressure injection |
| CN206232569U (en) * | 2016-11-29 | 2017-06-09 | 北京高能时代环境技术股份有限公司 | Underground water pollution place pump-and-treat system and biological synthesis repair system |
| CN106799395A (en) * | 2017-02-08 | 2017-06-06 | 东南大学 | The construction method of contaminated site is repaired in a kind of environmentally friendly medicament injection in situ |
Non-Patent Citations (1)
| Title |
|---|
| 苗竹等: "原位化学氧化技术在有机污染场地的应用", 《中国环境科学学会会议论文集》 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497848A (en) * | 2017-09-25 | 2017-12-22 | 南京律智诚专利技术开发有限公司 | A kind of method of Determination of organochlorine pesticides in soil reparation |
| CN107808228A (en) * | 2017-09-27 | 2018-03-16 | 上海岩土工程勘察设计研究院有限公司 | A kind of groundwater extraction efficiency evaluation method of hypotonicity soil layer |
| CN107808228B (en) * | 2017-09-27 | 2021-08-20 | 上海勘察设计研究院(集团)有限公司 | Groundwater extraction effectiveness evaluation method for low-permeability soil layer |
| CN108046404B (en) * | 2017-12-20 | 2020-04-10 | 浙江省环境保护科学设计研究院 | In-situ chemical oxidation remediation method for organic-polluted underground water |
| CN108046404A (en) * | 2017-12-20 | 2018-05-18 | 浙江省环境保护科学设计研究院 | A kind of in situ chemical oxidation restorative procedure of organic pollution underground water |
| CN108398539A (en) * | 2018-01-30 | 2018-08-14 | 上海岩土工程勘察设计研究院有限公司 | Polluted Soil stir in situ uniformity evaluation method |
| CN108398539B (en) * | 2018-01-30 | 2023-09-22 | 上海勘察设计研究院(集团)有限公司 | Polluted soil in-situ stirring uniformity evaluation method |
| CN108393345A (en) * | 2018-03-09 | 2018-08-14 | 江苏索尔雷米环保科技有限公司 | A kind of integrated restorative procedure being used for contaminated soil and underground water |
| CN108480388A (en) * | 2018-03-16 | 2018-09-04 | 昆明理工大学 | A kind of method of repairing organic polluted soil |
| CN108856275A (en) * | 2018-07-03 | 2018-11-23 | 南京万德斯环保科技股份有限公司 | A kind of method of repairing polluted soil and Organic Chemicals In Groundwater |
| CN110340133A (en) * | 2019-07-10 | 2019-10-18 | 浙江一龙环保科技有限公司 | One kind being used for organic polluted soil and underground water reducing in-situ construction method |
| CN110404956A (en) * | 2019-08-07 | 2019-11-05 | 上海洁壤环保科技有限公司 | A kind of soil and underground water complex repairation system and restorative procedure |
| CN112387771A (en) * | 2020-10-14 | 2021-02-23 | 南京格洛特环境工程股份有限公司 | In-situ chemical oxidation remediation method for benzene series contaminated soil |
| CN112570434A (en) * | 2020-11-26 | 2021-03-30 | 浙江风玉顺环保科技有限公司 | Prevention and treatment method for soil and underground water pollution in-situ injection well remediation system |
| CN114354786A (en) * | 2021-12-25 | 2022-04-15 | 生态环境部南京环境科学研究所 | Method for analyzing benzene series spatial distribution of underground water in polluted site based on pollution plume |
| CN115156270A (en) * | 2022-07-25 | 2022-10-11 | 天津华勘环保科技有限公司 | Method for repairing groundwater in pollution area of green belt |
| CN116351858A (en) * | 2023-04-11 | 2023-06-30 | 河南地矿集团中昊建设工程有限公司 | Combined control method for contaminated site soil and underground water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107159697B (en) | 2021-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107159697A (en) | A kind of organic polluted soil and groundwater remediation method and medicament | |
| CN105964678B (en) | Soil and underground water injection in situ --- high-pressure rotary-spray injection in-situ remediation system and method | |
| US4582611A (en) | Soil decontamination with wick drains | |
| Zhou et al. | Engineering issues on karst | |
| CN107214189A (en) | A kind of organic material contaminated soil renovation technique | |
| CN106914482A (en) | The in-situ remediation system of contaminated soil and underground water | |
| US6910829B2 (en) | In situ retreival of contaminants or other substances using a barrier system and leaching solutions and components, processes and methods relating thereto | |
| CN104624629B (en) | Method for remedying organism contaminated field by using bidirectional stirring injection method | |
| CN106623389A (en) | Remediation method for cyanide contaminated soil | |
| CN107983761A (en) | The method for repairing and constructing of heavy metal and VOCs combined contamination soils | |
| CN105544574B (en) | A kind of isolation processing method of polluted underground water | |
| Zhou et al. | Management and mitigation of sinkholes on karst lands: an overview of practical applications | |
| CN108372201A (en) | A kind of high-pressure rotary-spray dosing of organic contamination place original position aoxidizes restorative procedure | |
| US7153061B2 (en) | Method of in situ retrieval of contaminants or other substances using a barrier system and leaching solutions | |
| Cohen et al. | Design guidelines for conventional pump-and-treat systems | |
| CN109183772A (en) | The blocking method of contaminated site reparation under no-dig technique mode | |
| CN212121196U (en) | Multi-layer circulating well system for soil and underground water remediation | |
| Feng et al. | Testing of a novel multi-branch horizontal well remediation technology for in situ remediation of contaminated soil and groundwater | |
| CN216082180U (en) | Fixed-depth sampling monitoring well in thick sandy aquifer | |
| Aulenbach et al. | Monitoring for land application of wastewater | |
| CN115815311B (en) | Management and control restoration system and method for polluted underground water | |
| KR102338916B1 (en) | Vertical pipe well for groundwater pollution detection sensor | |
| Kraemer et al. | Monitoring well post-installation considerations | |
| Hughes | Hydrogeologic considerations in the siting and design of landfills | |
| Klingler et al. | Control of contaminated groundwater during tunneling: five case histories |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 050000 Building 611, No. 266 Tianshan Street, Shijiazhuang High-tech Zone, Hebei Province Applicant after: Yu ring Environmental Technology Co., Ltd. Address before: 050000 Building 611, No. 266 Tianshan Street, Shijiazhuang High-tech Zone, Hebei Province Applicant before: HEBEI YUHUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |