CN104368593A - Decaying periodic soil repair method - Google Patents
Decaying periodic soil repair method Download PDFInfo
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- CN104368593A CN104368593A CN201410439308.6A CN201410439308A CN104368593A CN 104368593 A CN104368593 A CN 104368593A CN 201410439308 A CN201410439308 A CN 201410439308A CN 104368593 A CN104368593 A CN 104368593A
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- drip washing
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Abstract
The invention belongs to the technical field of soil remediation method, and in particular relates to a decaying periodic repair method, which comprises the following steps: selecting to-be-processed soil region, arranging an anode electrode and a cathode electrode in the to-be-processed soil region, arranging an underground drug application unit between the two electrodes and near the anode electrode, arranging a permeable reactive barrier between the two electrodes and near the cathode electrode position, and performing water leaching, heavy metal leaching, electrokinetic remediation, organic matter leaching and electrokinetic remediation on the to-be-processed soil region in turn, sequentially repeating the standard repair cycle for 3 times, reducing the time of each step, sequentially reducing the leaching time to 80%, 50% and 25% of the standard repair cycle in each time; and in each time, sequentially reducing the time of turning on e DC power supply for energization to 90%, 80% and 70% of the standard repair cycle to complete the repair. The decaying periodic repair method can effectively reduce the waste of resources, improves the use value and the repair efficiency of the repairing device, the operation is closely connected, and the method is reliable, stable, and easy to operate.
Description
Technical field
The invention belongs to soil remediation method technical field, be specifically related to a kind of damped cycle restorative procedure.
Background technology
Along with the develop rapidly of city industrialization, urban soil and underground water industry and agricultural pollution serious gradually, soil texture and ecological environment are destroyed, quality of groundwater worsens, this not only causes agricultural development to be affected, more bring grave danger to the mankind and ecological environment, therefore soil remediation is a current vital task urgently to be resolved hurrily.Pollution in soil is not often single a kind of pollutant, but multiple contaminates the compound pollution of depositing, the region that especially industrial development is comparatively general, heavy metal and Organic Pollution are all extensively present among soil.
For the problems referred to above, start the research in a large number in soil remediation etc. at present, and made some progress.Drip washing reparation is very general chemical remediation technology, both can in-situ immobilization, also can showering, but have some problems to merit attention, first, long-term quantitative dosing, make the eluent concentration in soil be in saturation state, waste a large amount of medicament, and can not raise the efficiency, even make to be detained too much eluent in soil, spoiled soil structure.The second, eluent often has selectivity, therefore needs multiple eluent to coordinate and repairs combined contamination soil; 3rd, in position in drip washing work, need to set up extraction well in downstream, contaminated zone, by the liquid extraction after drip washing out and process.The work of extracting brings huge inconvenience to drip washing reparation, need employ certain manpower and cost, and the liquid waste processing work after extracting is also a complicated engineering.Therefore need more technology to strengthen and simplify complexity and the inconvenience of drip washing.
Rhanolipid as biosurfactant is a kind of anion surfactant, mainly passes through its micellar solubilization to the promotion that insoluble organic dissolves.Rhamnolipid is to the MSR(of hexachloro-benzene mole of increase-volume ratio) value 0.0005, be 0.033 with the MSR value of pyrene, be respectively 0.467,0.115 with naphthalene, luxuriant and rich with fragrance MSR value.Biosurfactant cost is 3 ~ 10 times of conventional surfactants, in position large-area applications high cost in soil remediation, therefore needs to coordinate other surfactants to apply simultaneously.Natural chelators oxalic acid can close reaction by huge legendary turtle and the heavy metal ion in contaminated soil be desorbed, and heavy metal ion Cu, Zn, Ni, Cr etc. remove all higher level.Oxalic acid is than artificial chelating agent environmental protection and price is economical, is for the effective eluent of heavy metal pollution.
Permeable reactive barrier technology (Permeable reactive barrier, PRB) is the passive recovery technique of a kind of novel original position, has sustainable in-situ treatment multiple pollutant, treatment effect is good, installation is convenient, cost performance comparatively advantages of higher.PRB technology settles active material body of wall to pollute pinnule to tackle, and make pollution pinnule by after reaction medium, pollutant can be converted into the another kind of form that environment accepts, thus reduces soil pollution level.General PRB reacts wall can be divided into continuous wall-or water proof funnel water guide gate-type.PRB active material generally selects Zero-valent Iron.Zero-valent Iron has extremely strong reduction, can be generally comprised chromium, uranium, selenium, cobalt, copper, mercury, arsenic etc. by the heavy metal pollution that Zero-valent Iron is removed, and metallic iron also can remove the inorganic anion such as nitrate anion, sulfate radical by bio-degradation reactions simultaneously.In organic matter removal, Fe0-PRB is reductive dechlorination mainly, namely by redox reaction, poisonous organic matter (halogenated hydrocarbons) etc. is degraded to the material of nonhazardous.Usual PRB technology meeting combined electrical recovery technique, applies weak electric field at PRB two ends, can accelerate contaminant ion migration, improve remediation efficiency.But PRB technology has some limitations, one is to repair soil targetedly, two be can not ensure repair thorough.Therefore need to coordinate other technologies to strengthen repairing.
From foregoing, in current soil restoring technology, all there is certain deficiency, exist in soil remediation field and drop into the problem comparatively large, efficiency is lower.
Summary of the invention
1. invent technical problem to be solved
Object of the present invention is providing a kind of damped cycle soil remediation method, to solve the problem that in above-mentioned soil remediation, repairing effect is poor, remediation efficiency is lower.
2. technical scheme
For achieving the above object, damped cycle soil remediation method of the present invention, comprises the steps:
Step 1, selected pending soil region, pending soil region underground water updrift side arranges anode electrode, downstream direction arranges cathode electrode, dc source is connected between anode electrode, cathode electrode, between the two poles of the earth, nearly anode electrode position arranges underground pesticide unit, and between the two poles of the earth, nearly cathode electrode position arranges permeable reactive barrier;
Step 2, to pending soil region water wash, 10 ~ 12 hours drip washing time;
Step 3, inject heavy metal leacheate through underground pesticide unit to pending soil region, carry out heavy metal and repair drip washing, apply electric field simultaneously to pending soil region, after 36 ~ 48 hours drip washing time, it is complete that heavy metal repairs drip washing;
Step 4, open dc source, be energized after 48 ~ 50 hours, close dc source;
Step 5, inject organic matter leacheate through underground pesticide unit to pending soil region, carry out organic matter and repair drip washing, apply electric field simultaneously to pending soil region, after 36 ~ 48 hours drip washing time, it is complete that organic matter repairs drip washing;
Step 6, open dc source, be energized after 48 ~ 50 hours, close dc source;
Step 7, be standard repairing efficiency with step 2 ~ 6, repeat standard repairing efficiency 3 times successively, reduce time in each step simultaneously, the drip washing time is reduced to 80%, 50%, 25% of standard repairing efficiency successively at every turn; Being reduced to 90%, 80%, 70% of standard repairing efficiency successively conduction time by opening dc source at every turn, repairing complete.
In above-mentioned damped cycle soil remediation method, in described step 2, drip washing adopts pre-spray system to carry out, and described pre-spray system is arranged between underground pesticide unit and permeable reactive barrier.
In above-mentioned damped cycle soil remediation method, in described step 2, drip washing speed 0.05 ~ 0.10 m
3/ d.
In above-mentioned damped cycle soil remediation method, also adopt as lower device: comprise pre-spray system, medicine system, reparation control system and control module;
Described reparation control system comprises the anode electrode, cathode electrode and the permeable reactive barrier that are arranged on below ground, and described permeable reactive barrier is arranged on the position of nearly cathode electrode between anode electrode and cathode electrode;
Described medicine system comprises medicine storage unit, underground pesticide unit and loading unit, described underground pesticide unit is arranged on the position of nearly anode electrode between anode electrode and cathode electrode, and the liquid in medicine storage unit can be transported to underground pesticide unit and then to soil dispenser by described loading unit;
Described pre-spray system is arranged between underground pesticide unit and permeable reactive barrier.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with prior art, there is following beneficial effect:
(1) damped cycle soil remediation method of the present invention, effectively can reduce the wasting of resources, and improve use value and the remediation efficiency of prosthetic device, operations is closely connected, reliable and stable, and easy to operate.
(2) eluent expands repair coverage while being used alternatingly and can saving eluent cost, effectively repairs compound contaminated soil.
(3) this method adopts half elliptic permeable reactive barrier to replace extraction well, fully demonstrate the function absorbing and tackle eluent reactant and contaminant remaining, and more effectively stop pollution pinnule compared to traditional diaphragm wall, under same contaminated area, more save material than water guide gate-type reaction wall and improve remediation efficiency.
(4) apparatus of the present invention flexibility is strong, can adjust, if pollution concentration is too high, can carry out multicycle circular flow according to Polluted area actual conditions; If contaminated zone is long, can connects many groups and carry out, form the tandem compound device of " spray well-PRB reacts wall-spray well ", thus repair thoroughly.
Accompanying drawing explanation
Fig. 1 is damped cycle soil restoring device schematic diagram of the present invention.
Label declaration in schematic diagram: 1-1-anode chamber, 1-2-cathode chamber, 2-1-anode electrode, 2-2-cathode electrode, 3-power supply, 4-permeable reactive barrier, 5-dosing well, 6-spray apertures, 7-pore, 8-pressure-air carrier pipe, 9-air pressure tube, 10-well lid, 11-1-the 4th valve, 11-2-the 3rd valve, 12-air blast, 13-the 3rd single channel peristaltic pump, 14-automatic timer, 15-air pressure controller, 16-control device, 17-first valve, 18-second valve, 19-first single channel peristaltic pump, 20-second single channel peristaltic pump, 21-aqua storage tank, 22-heavy metal repairs drip washing fluid reservoir, 23-organic matter repairs drip washing fluid reservoir, 24-force (forcing) pump, 25-medicine flow direction, 26-spray pipe network, 27-Polluted area.
Fig. 2 is semiellipse permeable reactive barrier schematic diagram.
Fig. 3 is damped cycle schematic diagram.
Fig. 4 is the contrast of certain contaminated site PCB repairing effect.
Fig. 5 is the contrast of certain contaminated site heavy metal repairing effect.
Detailed description of the invention
For understanding content of the present invention further, below in conjunction with embodiment and accompanying drawing, the present invention is described in detail.
embodiment 1
In damped cycle soil remediation method of the present invention, specifically comprise the steps:
Step 1, selected pending soil region, pending soil region underground water updrift side arranges anode electrode, downstream direction arranges cathode electrode, dc source is connected between anode electrode, cathode electrode, between the two poles of the earth, nearly anode electrode position arranges underground pesticide unit, and between the two poles of the earth, nearly cathode electrode position arranges permeable reactive barrier;
Step 2, to pending soil region water wash, 10 ~ 12 hours drip washing time;
Step 3, inject heavy metal leacheate through underground pesticide unit to pending soil region, carry out heavy metal and repair drip washing, apply electric field simultaneously to pending soil region, after 36 ~ 48 hours drip washing time, it is complete that heavy metal repairs drip washing;
Step 4, open dc source, be energized after 48 ~ 50 hours, close dc source;
Step 5, inject organic matter leacheate through underground pesticide unit to pending soil region, carry out organic matter and repair drip washing, apply electric field simultaneously to pending soil region, after 36 ~ 48 hours drip washing time, it is complete that organic matter repairs drip washing;
Step 6, open dc source, be energized after 48 ~ 50 hours, close dc source;
Step 7, be standard repairing efficiency with step 2 ~ 6, repeat standard repairing efficiency 3 times successively, reduce time in each step simultaneously, the drip washing time is reduced to 80%, 50%, 25% of standard repairing efficiency successively at every turn; Being reduced to 90%, 80%, 70% of standard repairing efficiency successively conduction time by opening dc source at every turn, repairing complete.
embodiment 2
As further technical scheme, method of the present invention adopts as lower device, and as shown in Figure 1, described device, comprises pre-spray system, medicine system, reparation control system and control module;
Described reparation control system is specially: be arranged on the anode electrode 2-1 of below ground, cathode electrode 2-2 and permeable reactive barrier 4, and described permeable reactive barrier 4 is arranged on the position of nearly cathode electrode 2-2 between anode electrode 2-1 and cathode electrode 2-2; Anode electrode 2-1 is arranged in anode chamber 1-1, and cathode electrode 2-2 is arranged in cathode chamber 1-2, and anode electrode 2-1, cathode electrode 2-2 are connected to the two poles of the earth of power supply 3 respectively, and power supply 3 is connected to control device 16; Described anode electrode 2-1, cathode electrode 2-2 are arranged on the two ends of soil region to be repaired and can form weak electric field at soil region to be repaired.
Described medicine system comprises medicine storage unit, underground pesticide unit and loading unit, described underground pesticide unit is arranged on the position of nearly anode electrode between anode electrode and cathode electrode, liquid in medicine storage unit can be transported to underground pesticide unit and then to soil dispenser by described loading unit, concrete structure is as shown in Figure 1: medicine storage unit comprises heavy metal and repairs drip washing fluid reservoir 22 and organic matter repairs drip washing fluid reservoir 23, wherein has corresponding leacheate respectively; Underground pesticide unit comprises the dosing well 5 being vertically set on underground, described dosing well 5 sidewall is provided with spray apertures 6, air pressure tube 9 is also provided with in dosing well 5, pore 7 is provided with bottom air pressure tube 9, pressure-air carrier pipe 8 stretches in air pressure tube 9, and described dosing well 5 is also provided with well lid 10.
Loading unit comprises liquid supply unit and air supply unit, liquid supply unit comprises the first single channel peristaltic pump 19, second single channel peristaltic pump 20, 3rd valve 11-2, second valve 18, automatic timer 14, 3rd single channel peristaltic pump 13 and the 3rd valve 11-2, heavy metal repairs drip washing fluid reservoir 22 by the first single channel peristaltic pump 19, first valve 17 is communicated to automatic timer 14, organic matter repairs drip washing fluid reservoir 23 by the second single channel peristaltic pump 20, second valve 18 is communicated to automatic timer 14, automatic timer 14 is communicated to dosing well 5 by the 3rd single channel peristaltic pump 13 and the 3rd valve 11-2 again, air supply unit comprises air pressure controller 15, air blast 12 and the 4th valve 11-1, and air blast is communicated to pressure-air carrier pipe 8 by the 4th valve 11-1, and air pressure controller 15 is controlled the air pressure exported by air blast 12.
Pre-spray system is arranged between underground pesticide unit and permeable reactive barrier, specifically comprise aqua storage tank 21, force (forcing) pump 24, the 5th valve 11-3 and spray pipe network 26, aqua storage tank 21 is communicated with spray pipe network 26 with the 5th valve 11-3 by force (forcing) pump 24, and the water in aqua storage tank 21 can be carried and spray.
Above-mentioned control module is specially the control device 16 in Fig. 1, and control device 16 connects the 4th valve 11-1, the 3rd valve 11-2, power supply 3 and aqua storage tank 21 respectively, thus controls whole system.
During concrete layout, anode chamber 1-1 and dosing well 5 are arranged in underground water updrift side, permeable reactive barrier 4 and cathode chamber 1-2 are arranged in downstream direction, are convenient to leacheate natural flow through permeable reactive barrier 4, and can play the treatment effect of reaction wall circular arc to greatest extent.
As further embodiment, in above-mentioned damped cycle soil restoring device, described permeable reactive barrier 4 is circular arc, the direction, the center of circle of circular arc is towards anode electrode 2-1, the projected depth of permeable reactive barrier 4 determines according to underground water hydraulic gradient difference, the lower surface of General Requirements permeable reactive barrier 4 is arranged on below dosing well 5 depth capacity 3 ~ 5 meters of positions, and the active material of permeable reactive barrier 4 is 0 valency iron (Fe
0).
embodiment 3
After adopting embodiment 2, method concrete operation step of the present invention is:
Step 1, selected pending soil region, pending soil region underground water updrift side arranges anode electrode, downstream direction arranges cathode electrode, between the two poles of the earth, nearly anode electrode position arranges underground pesticide unit, and between the two poles of the earth, nearly cathode electrode position arranges permeable reactive barrier;
Step 2, open pre-spray system, carry out drip washing to pending soil region, open the 5th valve 11-3, the leacheate in aqua storage tank 21 is transported to spray pipe network 26 and carries out drip washing by force (forcing) pump 24, and leacheate is mainly water.10 ~ 12 hours drip washing time, drip washing speed 0.05 ~ 0.10 m
3/ d, closes the 5th valve 11-3 after drip washing.
Step 3, open medicine system, open the 3rd valve 11-2 and the first valve 17, first single channel peristaltic pump 19 is started working, the heavy metal leacheate repaired by heavy metal in drip washing fluid reservoir 22 is delivered in dosing well 5, open the 4th valve 11-1 simultaneously, air blast 12 is started working, pressure-air is delivered in air pressure tube through pressure-air carrier pipe, thus drive the heavy metal leacheate in dosing well 5 to spray from spray apertures 6, heavy metal is carried out to pending soil region and repairs drip washing after 36 ~ 48 hours, close the first valve 17, it is complete that heavy metal repairs drip washing.
Step 4, unlatching electro reclamation, open dc source 3, carry out electro reclamation, continue after 48 ~ 50 hours, powered-down.
Step 5, open the second valve 18, the organic matter leacheate repaired by organic matter in drip washing fluid reservoir 23 is delivered in dosing well, and carry out organic matter to pending soil region and repair drip washing after 36 ~ 48 hours, close the second valve 18, it is complete that organic matter repairs drip washing.
Step 6, unlatching electro reclamation, open dc source 3, carry out electro reclamation, continue after 48 ~ 50 hours, powered-down.
Step 7, be standard treatment cycle with step 2 ~ 6, i.e. the first treatment cycle, after first treatment cycle, repeat step 2 ~ 6, repeat 3 times altogether, be followed successively by second and third, four treatment cycles, second and third, the 4th, drip washing time in the 5th treatment cycle reduces to 80%, 50%, 25% of the drip washing time corresponding in the first treatment cycle respectively; The time of electro reclamation is reduced to 90%, 80%, 70% of standard repairing efficiency successively at every turn.
After above-mentioned four treatment cycles are all disposed, close all systems, detect soil sample, the soil pH after process is 6 ~ 9, soil COD is less than 100mg/L, and Soil K+adsorption heavy metal and organic contamination substrate concentration reach national soil quality standard GB15618-1995 tri-class Soil standard.
Schematically above be described the present invention and embodiment thereof, this description does not have restricted, and also just one of the embodiments of the present invention shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, designing the frame mode similar to this technical scheme and embodiment without creationary, all should protection scope of the present invention be belonged to.
Claims (4)
1. a damped cycle soil remediation method, is characterized in that comprising the steps:
Step 1, selected pending soil region, pending soil region underground water updrift side arranges anode electrode, downstream direction arranges cathode electrode, dc source is connected between anode electrode, cathode electrode, between the two poles of the earth, nearly anode electrode position arranges underground pesticide unit, and between the two poles of the earth, nearly cathode electrode position arranges permeable reactive barrier;
Step 2, to pending soil region water wash, 10 ~ 12 hours drip washing time;
Step 3, inject heavy metal leacheate through underground pesticide unit to pending soil region, carry out heavy metal and repair drip washing, apply electric field simultaneously to pending soil region, after 36 ~ 48 hours drip washing time, it is complete that heavy metal repairs drip washing;
Step 4, open dc source, be energized after 48 ~ 50 hours, close dc source;
Step 5, inject organic matter leacheate through underground pesticide unit to pending soil region, carry out organic matter and repair drip washing, apply electric field simultaneously to pending soil region, after 36 ~ 48 hours drip washing time, it is complete that organic matter repairs drip washing;
Step 6, open dc source, be energized after 48 ~ 50 hours, close dc source;
Step 7, be standard repairing efficiency with step 2 ~ 6, repeat standard repairing efficiency 3 times successively, reduce time in each step simultaneously, the drip washing time is reduced to 80%, 50%, 25% of standard repairing efficiency successively at every turn; Being reduced to 90%, 80%, 70% of standard repairing efficiency successively conduction time by opening dc source at every turn, repairing complete.
2. damped cycle soil remediation method according to claim 1, is characterized in that: in described step 2, and drip washing adopts pre-spray system to carry out, and described pre-spray system is arranged between underground pesticide unit and permeable reactive barrier.
3. damped cycle soil remediation method according to claim 1, is characterized in that: in described step 2, drip washing speed 0.05 ~ 0.10 m
3/ d.
4. damped cycle soil remediation method according to claim 1, is characterized in that adopting as lower device in described method: comprise pre-spray system, medicine system, reparation control system and control module;
Described reparation control system comprises the anode electrode, cathode electrode and the permeable reactive barrier that are arranged on below ground, and described permeable reactive barrier is arranged on the position of nearly cathode electrode between anode electrode and cathode electrode;
Described medicine system comprises medicine storage unit, underground pesticide unit and loading unit, described underground pesticide unit is arranged on the position of nearly anode electrode between anode electrode and cathode electrode, and the liquid in medicine storage unit can be transported to underground pesticide unit and then to soil dispenser by described loading unit;
Described pre-spray system is arranged between underground pesticide unit and permeable reactive barrier.
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| CN201410439308.6A CN104368593B (en) | 2014-09-01 | 2014-09-01 | A kind of damped cycle soil remediation method |
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| CN201410439308.6A CN104368593B (en) | 2014-09-01 | 2014-09-01 | A kind of damped cycle soil remediation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623401A (en) * | 2016-12-05 | 2017-05-10 | 上海绿强新材料有限公司 | Method for repairing heavy metal polluted soil based on permeation absorption wall |
| CN107020297A (en) * | 2017-05-27 | 2017-08-08 | 北京高能时代环境技术股份有限公司 | A kind of contaminated soil, underground water reaction in-situ band repair system and restorative procedure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004009025A (en) * | 2002-06-11 | 2004-01-15 | Kurita Water Ind Ltd | Method of cleaning soil contaminated by organic chlorine compound |
| JP2006346519A (en) * | 2005-06-13 | 2006-12-28 | Kubota Corp | In-situ purification method of contaminated soil |
| CN102886374A (en) * | 2012-09-29 | 2013-01-23 | 广西大学 | Method for electrically repairing heavy metal As (Arsenic) contaminated soil by using rhamnolipid |
| CN103143560A (en) * | 2013-02-21 | 2013-06-12 | 华北电力大学 | Electrodynamic force-reinforced leaching in-situ restoration apparatus for persistent organic contaminated soil |
| CN103252344A (en) * | 2013-05-20 | 2013-08-21 | 华北电力大学 | Electrically-enhanced soil in-situ eluting and repairing device and method |
-
2014
- 2014-09-01 CN CN201410439308.6A patent/CN104368593B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004009025A (en) * | 2002-06-11 | 2004-01-15 | Kurita Water Ind Ltd | Method of cleaning soil contaminated by organic chlorine compound |
| JP2006346519A (en) * | 2005-06-13 | 2006-12-28 | Kubota Corp | In-situ purification method of contaminated soil |
| CN102886374A (en) * | 2012-09-29 | 2013-01-23 | 广西大学 | Method for electrically repairing heavy metal As (Arsenic) contaminated soil by using rhamnolipid |
| CN103143560A (en) * | 2013-02-21 | 2013-06-12 | 华北电力大学 | Electrodynamic force-reinforced leaching in-situ restoration apparatus for persistent organic contaminated soil |
| CN103252344A (en) * | 2013-05-20 | 2013-08-21 | 华北电力大学 | Electrically-enhanced soil in-situ eluting and repairing device and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623401A (en) * | 2016-12-05 | 2017-05-10 | 上海绿强新材料有限公司 | Method for repairing heavy metal polluted soil based on permeation absorption wall |
| CN107020297A (en) * | 2017-05-27 | 2017-08-08 | 北京高能时代环境技术股份有限公司 | A kind of contaminated soil, underground water reaction in-situ band repair system and restorative procedure |
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