CN104624631B - Administer the pollution of chromium in soil the device preventing pollutant from spreading - Google Patents
Administer the pollution of chromium in soil the device preventing pollutant from spreading Download PDFInfo
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- CN104624631B CN104624631B CN201510037007.5A CN201510037007A CN104624631B CN 104624631 B CN104624631 B CN 104624631B CN 201510037007 A CN201510037007 A CN 201510037007A CN 104624631 B CN104624631 B CN 104624631B
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- cylinder
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- soil
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- collecting bucket
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Abstract
A kind of pollution of chromium administered in soil the device preventing pollutant from spreading, sprayed district, drum functions district, effluent collection district, cylinder storage area, automatization's water level and water quality detecting device by leacheate and form.Leacheate is sprayed by the perforated pipe of spray system, sets the monolateral water outlet of perforated pipe or the regulation both sides water outlet water yield is different so that perforated pipe moves back and forth and reaches spraying effect.The soil horizon being leached is arranged below liquid collecting bucket and collects percolate, when liquid collecting bucket reservoir storage reaches the upper limit, the water discharging valve of bottom is in the state preparing to open, when cylinder discharges percolate through out-of-date activation water discharging valve, the inhalant region of cylinder receives percolate and allows percolate be exited into effluent collection district by activated carbon adsorption, the percolate after absorption by the exhalant region of cylinder even into packed layer.Cr when cylinder exhalant region6+During concentration over-standard, stop cylinder water inlet, cylinder is transported to cylinder storage area and processes, and the cylinder more renewed.
Description
Art
The invention belongs to remediation contaminated soil field, more particularly to a kind of device chromium-polluted soil administered and repairs.
Background technology
Mainly having elution method, electro reclamation method and biological restoration in situ currently for by the processing method of the soil of pollution of chromium, its situ elution method cost is relatively low, technology maturation, and application also ratio is wide.Elution method has effective limit pollution thing range of scatter in situ, need not excavate on a large scale and the disposal of a large amount of contaminated soils, leacheate after treatment can recycle, cost-effective, consumption is lacked, being furthermore possible to the pollution of chromium weakening in subsoil water, technical staff is not required to the advantages such as direct contact stain thing.But, elution method is not suitable for the soil that permeability is poor, quality relatively glues weight in situ, pollutant level or vertical proliferation can be caused, there is the process problem reclaimed with the later stage in the waste liquid that drip washing goes out, its process time is the longest simultaneously, the surfactant used is likely to remain in water-bearing layer, easily causes secondary pollution.
Summary of the invention
Solve the technical problem that
For overcoming the pollutant level or vertical proliferation that traditional original position elution method causes, the secondary pollution problem of leacheate, the present invention provides a kind of process by the soil of pollution of chromium the device of collecting leacheate, percolate it is collected below at drip washing layer by arranging cylinder and carries out activated carbon adsorption, water outlet after absorption is unified collects discharge, efficiently solve pollutant diffusion and percolate secondary pollution problem, can preferably carry out heavy metal pollution of soil improvement and reparation.
Technical scheme
A kind of pollution of chromium administered in soil the device preventing pollutant from spreading, district, Automated water level detecting apparatus, drum functions district, Automated water quality detecting device, effluent collection district, cylinder storage area is sprayed including leacheate, whole device is divided into three layers, and each layer is divided into four gallerys.Topmost a floor is that leacheate sprays district, and each gallery arranges a perforated pipe, and perforated pipe two end-rack is on wheel, and wheel is placed in orbit.During spray, perforated pipe due to recoil effect thus moves back and forth along track.Being soil horizon to be repaired between the superiors and intermediate layer, intermediate layer is placed with liquid collecting bucket, and in order to collect the leacheate after spraying soil, the water level collected when liquid collecting bucket reaches to design the upper limit, and drain valve is in the state preparing to open.Orlop is drum functions district, effluent collection district and cylinder collecting region, when cylinder is rolled into immediately below liquid collecting bucket and the water level of liquid collecting bucket reaches to design the upper limit, drain valve is opened by system, leacheate enters the inhalant region of cylinder, after via activated carbon adsorption, flow to the exhalant region of cylinder and enter effluent collection district via rhone.When cylinder absorption reaches saturated, cylinder is delivered to cylinder storage area and is regenerated, and continues to run with to the drum functions district new cylinder of input.
The both sides aperture angle of described perforated pipe is 120 °.
Described liquid collecting bucket has the different quartz sand filter media of three layers of particle diameter for filtering soil particle.
Water level sensor and drain valve are arranged at described liquid collecting bucket bottom.
Described drum functions district is placed with a cylinder filling activated carbon.
Evenly it is sprayed on soil in view of leacheate, first being excavated to below from side, region to be repaired, will be divided into four gallerys below area to be repaired, a gallery is provided above a perforated pipe, perforated pipe moves from gallery one end, and one had a try as a cycle.The mobile power of perforated pipe is from the recoil active force of monolateral water outlet or the pressure differential that causes of bilateral water outlet water yield difference.Leacheate is collected through liquid collecting bucket, water level sensor measures water level, if reaching to design the upper limit, drain valve under liquid collecting bucket can be in the state preparing to open, when the cylinder in gallery opens drain valve through out-of-date by Photoinduction device instruction system, percolate is entered drums inside by cylinder inhalant region, and the chromium ion in the activated carbon adsorption percolate being filled through in district, the percolate after absorption exits into outlet canal from cylinder exhalant region and is finally flowed to effluent collection district.Cylinder exhalant region is provided with chromium concn detection device, when chromium concn exceeds standard, cylinder no longer water outlet, and system fading margin closes liquid collecting bucket drain valve, and cylinder is delivered to storage area and regenerated.
Provide the benefit that:
1. the chromium in soil is dissolved in leacheate, thus soil remediation is changed into the chromium ion removed in water body, use adsorption effect of activated carbon in water good, low cost, efficiently solve the problem that chromium is difficult to remove in soil.
2. this device is by adsorbing the percolate after drip washing equipped with the cylinder of activated carbon, efficiently solves problem and the problem of percolate secondary pollution that pollutant laterally or longitudinally migrate.
The most whole device various piece cost is not the most the highest, and the motion of spray system need not the traction of other strength, and cylinder fill area is internal is activated carbon, and nontoxic, economical and efficient, simultaneously for environment without any by-product and harm.Whole system power consumption is few, and adsorbing material is economical and practical, is suitable for promoting the use of in rural area.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the pollution of chromium administered in soil and prevents pollutant disperser structural representation
Fig. 2 is the pollution of chromium administered in soil and prevents pollutant disperser spray system schematic diagram
Fig. 3 is perforated pipe drawing and profile
Tu4Shi drum functions district gallery schematic diagram
Fig. 5 is activated carbon cylinder profile
1. water inlet pipe in figure, 2. perforated pipe, 3. liquid collecting bucket, 4. water inlet pipe electrodynamic valve, 5. unilateral water inlet tube valve A, 6. unilateral water inlet tube valve B, 7. spray apertures, 8. liquid collecting bucket drain valve, 9. activated carbon cylinder, 10. water leg, 11. cylinder inhalant regions, 12. cylinder exhalant regions, 13. activated carbon fill areas, 14. effluent collection ponds, 15. cylinder storage areas
Specific implementation method
A kind of pollution of chromium administered in soil the device preventing pollutant from spreading, by water inlet pipe (1), perforated pipe (2), liquid collecting bucket (3), water inlet pipe electrodynamic valve (4), unilateral water inlet tube valve A(5), unilateral water inlet tube valve B(6), spray apertures (7), liquid collecting bucket drain valve (8), activated carbon cylinder (9), water leg (10), cylinder inhalant region (11), cylinder exhalant region (12), activated carbon fill area (13) are constituted.Water inlet pipe (1) it is provided with in the front end of device, water inlet pipe connects perforated pipe (2) by water inlet pipe electrodynamic valve (4), and perforated pipe is divided into two unilateral pipes, respectively by unilateral water inlet tube valve A(5), unilateral water inlet tube valve B(6) it is controlled into water, spray apertures (7) angle becomes 120o, percolate enters liquid collecting bucket (3), and liquid collecting bucket has the quartz sand filter media that three layers of particle diameter is different.The percolate that liquid collecting bucket is collected is discharged via liquid collecting bucket drain valve (8), enters cylinder inhalant region (11), then flows out from cylinder exhalant region (12), water leg (10) collect and eventually enter into effluent collection pond (14).It is filled with activated carbon as adsorbent between cylinder inhalant region (11) and cylinder exhalant region (12).
Specific works flow process is:
In the embodiment shown in fig. 1, leacheate is entered by water inlet pipe (1), first pass through water inlet pipe electrodynamic valve (4), enter perforated pipe (2), then unilateral water inlet tube valve A(5), unilateral water inlet tube valve B(6) difference Non-leaching liquid entrance one side pipe, leacheate sprays from spray apertures (7), when unilateral water inlet tube valve controls water outlet, and not water outlet on one side, or during the water yield difference of both sides, perforated pipe can move in parallel so that leacheate sprays uniformly.After leacheate carries out drip washing to soil, percolate enters liquid collecting bucket and stores and filter to prevent soil particle from entering through three-layer filter.Liquid collecting bucket drain valve (8) is provided with condensate tank of dehumidifier, when the percolate that liquid collecting bucket is collected reaches the upper limit, liquid collecting bucket drain valve (8) is in preparation opening, when activated carbon cylinder (9) is through lower section, by Photoinduction device instruction system, drain valve is opened, allowing percolate flow into cylinder inhalant region (11), there is a metafiltration cloth on cylinder inhalant region surface, prevents soil particle from entering in cylinder further.When the percolate that liquid collecting bucket is collected is not up to the upper limit, liquid collecting bucket drain valve (8) is closed all the time, even if cylinder is through being also not turned on.Spacing between two liquid collecting buckets is exactly cylinder and rotates the distance of a week.Cylinder inhalant region (11) is provided with liquid when one-way cock prevents from rotating and flows out.The percolate entered by cylinder inhalant region (11) through screen cloth evenly into activated carbon fill area (13), chromium ion is adsorbed by activated carbon, percolate after absorption exits into water leg (10) from cylinder exhalant region (12), is finally pooled to effluent collection district.Cylinder exhalant region (12) is provided with chromium ion concentration detection equipment, when chromium ion concentration exceedes setting value, pass through system feedback, close liquid collecting bucket drain valve (8), and reduce spray flux, cylinder is promoted to cylinder storage area (15) by underground and carries out Regeneration Treatment, and new cylinder is thrown in drum functions district again.
Claims (5)
- null1. the pollution of chromium administered in soil the device that prevents pollutant from spreading，District is sprayed including leacheate、Automated water level detecting apparatus、Drum functions district、Automated water quality detecting device、Effluent collection district、Cylinder storage area，It is characterized in that: whole device is divided into three layers，Each layer is divided into four gallerys，Topmost a floor is that leacheate sprays district，Each gallery arranges a perforated pipe，Perforated pipe two end-rack is on wheel，Wheel is placed in orbit，During spray, perforated pipe due to recoil effect thus moves back and forth along track，It it is soil horizon to be repaired between the superiors and intermediate layer，Intermediate layer is placed with liquid collecting bucket，In order to collect the leacheate after spraying soil，The water level collected when liquid collecting bucket reaches to design the upper limit，Drain valve is in the state preparing to open，Orlop is drum functions district、Effluent collection district and cylinder collecting region，When cylinder is rolled into immediately below liquid collecting bucket and the water level of liquid collecting bucket reaches to design the upper limit，Drain valve is opened by system，Leacheate enters the inhalant region of cylinder，After via activated carbon adsorption，Flow to the exhalant region of cylinder and enter effluent collection district via rhone，When cylinder absorption reaches saturated，Cylinder is delivered to cylinder storage area and is regenerated，And continue to run with to the drum functions district new cylinder of input.
- Pollution of chromium in improvement soil the most according to claim 1 the device preventing pollutant from spreading, is characterized in that: the both sides aperture angle of perforated pipe is 120 °.
- Pollution of chromium in improvement soil the most according to claim 1 the device preventing pollutant from spreading, is characterized in that: has the different quartz sand filter media of three layers of particle diameter in liquid collecting bucket for filtering soil particle.
- Pollution of chromium in improvement soil the most according to claim 1 the device preventing pollutant from spreading, is characterized in that: water level sensor and drain valve are arranged at liquid collecting bucket bottom.
- Pollution of chromium in improvement soil the most according to claim 1 the device preventing pollutant from spreading, is characterized in that: be placed with a cylinder filling activated carbon in drum functions district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510037007.5A CN104624631B (en) | 2015-01-23 | 2015-01-23 | Administer the pollution of chromium in soil the device preventing pollutant from spreading |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510037007.5A CN104624631B (en) | 2015-01-23 | 2015-01-23 | Administer the pollution of chromium in soil the device preventing pollutant from spreading |
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| CN104624631A CN104624631A (en) | 2015-05-20 |
| CN104624631B true CN104624631B (en) | 2016-08-31 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3951794B2 (en) * | 2002-05-09 | 2007-08-01 | 三菱マテリアル株式会社 | Treatment method of contaminated soil |
| JP4207524B2 (en) * | 2002-10-10 | 2009-01-14 | 株式会社大林組 | Contaminated soil treatment equipment |
| KR20120081837A (en) * | 2011-01-12 | 2012-07-20 | 정석권 | Apparatus for purifying underwater contaminated sediment in-situ |
| CN102974607B (en) * | 2012-12-21 | 2013-10-16 | 中国科学院地理科学与资源研究所 | Elution repairing device and repairing method of arsenic polluted soil and wastes |
| CN203621087U (en) * | 2013-12-11 | 2014-06-04 | 浙江大学 | Integrated device combining extraction, elution and restoration of polluted soil |
| CN203803912U (en) * | 2013-12-25 | 2014-09-03 | 天津生态城环保有限公司 | Chemical leaching system for treatment of soil heavy metal and organic pollution |
| CN203778479U (en) * | 2014-04-14 | 2014-08-20 | 北京矿冶研究总院 | Portable heavy metal contaminated soil drip washing device |
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