CN104307867A - Polluted soil repairing device and method by adopting surface afflux electrical method and degrading bacteria - Google Patents
Polluted soil repairing device and method by adopting surface afflux electrical method and degrading bacteria Download PDFInfo
- Publication number
- CN104307867A CN104307867A CN201410450049.7A CN201410450049A CN104307867A CN 104307867 A CN104307867 A CN 104307867A CN 201410450049 A CN201410450049 A CN 201410450049A CN 104307867 A CN104307867 A CN 104307867A
- Authority
- CN
- China
- Prior art keywords
- electrodes
- grades
- control system
- anode
- level
- 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
- 241000894006 Bacteria Species 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 54
- 239000002689 soil Substances 0.000 title claims abstract description 50
- 230000000593 degrading effect Effects 0.000 title abstract description 6
- 238000010291 electrical method Methods 0.000 title abstract 3
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 239000003208 petroleum Substances 0.000 claims abstract description 12
- 230000008439 repair process Effects 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 115
- 238000006731 degradation reaction Methods 0.000 claims description 75
- 230000015556 catabolic process Effects 0.000 claims description 74
- 230000002572 peristaltic effect Effects 0.000 claims description 30
- 239000003792 electrolyte Substances 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000003900 soil pollution Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 20
- 231100000719 pollutant Toxicity 0.000 abstract description 20
- 230000008569 process Effects 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000002344 surface layer Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 238000013508 migration Methods 0.000 description 4
- 230000005012 migration Effects 0.000 description 4
- 238000005067 remediation Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000011953 bioanalysis Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000909 electrodialysis Methods 0.000 description 2
- 238000001962 electrophoresis Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229920005479 Lucite® Polymers 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- XTKDAFGWCDAMPY-UHFFFAOYSA-N azaperone Chemical compound C1=CC(F)=CC=C1C(=O)CCCN1CCN(C=2N=CC=CC=2)CC1 XTKDAFGWCDAMPY-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000012136 culture method Methods 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 150000008040 ionic compounds Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a polluted soil repairing device and method by adopting a surface afflux electrical method and degrading bacteria, and belongs to the technical field of petroleum polluted environment repairing. The device mainly comprises a power supply, electrodes, degrading bacterium injection pipelines, a PRB reaction wall, an intelligent multichannel counter, and control systems. In a polluted area, five electrodes are evenly arranged from top to bottom in a direction that is parallel to a horizontal plane, a degrading bacterium injection pipe is arranged between every two electrodes, and during the repairing process, the intelligent multichannel counter and each control system control the repairing process. The device uses an afflux type electrical method to repair polluted soil, by exchanging the electrodes, the petroleum pollutants continuously flow out to the soil surface layer, part of the petroleum pollutants that move from bottom to top is degraded by the degrading bacteria, and the pollutants that immigrate into the soil surface layer are absorbed by the PRB reaction wall. The provided device can high efficiently degrade petroleum pollutants in soil, and does not generate any secondary pollution.
Description
Technical field
The invention belongs to soil pollution environment remediation technical field, be specifically related to the apparatus and method that electric driving method combined degradation bacterium repairing polluted soil is poured on a kind of surface.
Background technology
The mixture that oil is made up of thousands of kinds of compounds, mainly comprises saturated hydrocarbons, compound fragrant hydrocarbon, asphalitine, resinae etc.These compounds have carcinogenic, cause the effects such as change, teratogenesis, and by food chain enrichment in animal and plant body, all can cause very large negative effect to environment, plant, the mankind.With regard to soil pollution, the lateral transfer of oil in soil distributes radially, and pollution intensity increases with the distance of pollution sources and reduces rapidly, and the heaviest region of pollution sources ambient contamination is within the scope of 0-40m, account for total amount more than 90%, lateral transfer scope is determined within 150m; The ground crude oil vertical migration overwhelming majority concentrates on apart within the scope of soil surface 0-10cm, and vertical migration is generally no more than 70cm.
The domestic and international processing method polluted about soil PetroChina Company Limited. is divided into Physical, chemical method and bioanalysis at present.Wherein, Physical mainly according to the physical characteristic of petroleum hydrocarbon, utilize the method such as absorption, air lift, extraction by its from contaminated soil mutually separate.The main treatment technology of Physical is absorption method, naturally floating upper method, air-extraction, extraction, membrane technology and heat treating process.The character that chemical method mainly carrys out separation and recovery pollutant according to chemical principle and method or changes them makes it innoxious, and major technique comprises wet oxidation process, Chemical Leaching method, electricity flocculation and electrolytic oxidation etc.The bioanalysis reparation of contaminated soil refers to and utilizes specific plant, animal and antimicrobial absorbent, conversion, removing or degraded environmental contaminants, makes pollutant levels in environment be reduced to tolerance interval.Major technique comprises throws bacterium method, biological culture method, bioventing process, soil cultivating method, composting process, bioreactor method and Anaerobic Treatment method.Physical is the postponement measure of rehabilitating soil PetroChina Company Limited., can not fundamentally solve oil pollution problem, chemical method is short for repair time, but easily produce secondary pollution, bioanalysis repair relative to Physical and chemical Treatment economic costs few, little to ambient influnence, do not produce secondary pollution, but the remedying oil-polluted soils cycle is longer.
The electro reclamation of contaminated soil is the research field that comprehensive soil chemistry, Environmental Chemistry, electrochemistry and an analytical chemistry etc. intersect.Electro reclamation refers at contaminated soil and groundwater region electrode insertion, forms low-voltage direct electric field, utilizes electro kinetic effect that pollutant is moved, thus reaches the object removing pollutant in soil.Electro reclamation main movement mechanism has electrodialysis, electromigration and electrophoresis etc.Electrodialysis refers to the motion that the pore water in soil causes under the effect of extra electric field power, and translational speed is comparatively slow, and closely related with soil property.Electromigration refer to charged ion in contaminated soil and ionic compound under the effect of electric field force cation to cathodic migration, the process of anion anode migration.Electrophoresis refers under the effect of extra electric field power, and the charged colloidal particle (tiny soil particle, corruption plant grain, microbial cell etc.) in soil drives the pollutant be adsorbed on these particle surfaces to do displacement.
The comparison of ingredients of oil is complicated, and primarily of alkane, cycloalkane, aromatic hydrocarbon and a small amount of non-hydrocarbons composition, it is a kind of mixture.Microorganism it has been generally acknowledged that two kinds of mechanism to petroleum hydrocarbon degraded, one is Direct Resolution, microorganism is in the vital movements such as its growth and breeding, take hydrocarbon as carbon source, make this type of material chain rupture utilizing in process, the HMW noxious material of complexity is decomposed into simple low-molecular-weight innocuous substance; Another passes through co-metabolic degradation, Co metabolism refers to that compound can not be utilized by permineralization, microorganism must obtain most of carbon source and the energy from other substrate, that is, the biodegradation process having primary energy material to deposit the organic compound that just can carry out in case.
Permeable reactive barrier (Permeable Reactive Barrier, PRB) technology is the underground water pollution based technique for in-situ remediation developed rapidly in recent years, because it possesses, sustainable in-situ treatment multiple pollutant, treatment effect are good, little to environmental perturbation, installation convenient, low cost and other advantages, have become the developing direction that soil pollution reparation is main.When the pollutant in soil is by PRB, pollutant and materials for wall generation chemical reaction and be removed, thus reach the object of environment remediation.PRB, once install, except needing to change except body of wall reaction material in some cases, needs other operation and maintenance costs hardly.
Traditional electric repair method inserts two electrodes at Polluted area perpendicular to horizontal direction, from current research conditions, many being applicable to tests reparation, processing region area is less, and present pollutant delay situation at Polluted area intermediate zone, pollutant rate travel is less, core of the present invention is, propose surface and pour into the electronic combined degradation bacterium of formula and PRB technology, from Polluted area bottom, pollutant is approached Polluted area top layer gradually, merge degradation bacteria and PRB technology, promote desorb and the degraded of soil PetroChina Company Limited. pollutant.
Summary of the invention
Not enough for prior art, the object of this invention is to provide the apparatus and method that electric driving method combined degradation bacterium repairing polluted soil is poured on a kind of surface.
To achieve these goals, the present invention adopts following technical scheme:
The device of electric driving method combined degradation bacterium repairing polluted soil is poured on a kind of surface, described device comprises: one-level anode 1, secondary anode 2, first electrodes 3, secondary electrodes 4, three grades of negative electrodes 5, one-level anode chamber 6, secondary anode chamber 7, first electrodes room 8, secondary electrodes room 9, three grades of cathode chambers 10, first class control system 11, intelligent multi-channel counter 12, voltage-stabilized power supply 13, one-level multi-channel peristaltic pump 14, second control system 15, electrolyte treatment trough 16, negative electrode liquid bath 17, anode liquid bath 18, three-stage control system 19, three grades of multi-channel peristaltic pumps 20, degradation bacteria liquid bath 21, level Four control system 22, single channel peristaltic pump 23, PRB reacts wall 24 and degradation bacteria liquid injecting pipeline: one-level liquid injecting pipeline 1-1, secondary liquid injecting pipeline 1-2, three grades of liquid injecting pipeline 1-3 and level Four liquid injecting pipeline 1-4, single unit system is in sealing state, described voltage-stabilized power supply 13 connects intelligent multi-channel counter 12 and first class control system 11 successively, is then connected with three grades of negative electrodes 5 with one-level anode 1, secondary anode 2, first electrodes 3, secondary electrodes 4 respectively, described one-level anode 1, secondary anode 2, first electrodes 3, secondary electrodes 4 and three grades of negative electrodes 5 are placed in one-level anode chamber 6, secondary anode chamber 7, first electrodes room 8, secondary electrodes room 9 and three grades of cathode chambers 10 respectively, described electrolyte treatment trough 16 connects second control system 15 and secondary multi-channel peristaltic pump 14 successively, then be connected with each electrode chamber respectively, described negative electrode liquid bath 17 is connected three-stage control system 19 and three grades of multi-channel peristaltic pumps 20 with anode liquid bath 18 successively with parallel way, is then connected with each electrode chamber respectively, above-mentioned five electrodes are evenly settled from down to up successively in the direction being parallel to horizontal plane at Polluted area, between adjacent electrode room, install degradation bacteria liquid injecting pipeline successively, described degradation bacteria liquid bath 21 is connected with each degradation bacteria liquid injecting pipeline above-mentioned by level Four control system 22 and single channel peristaltic pump 23, shown PRB reacts wall 24 and is arranged near three grades of cathode chambers 10.
Utilize a method for said apparatus repairing polluted soil, said method comprising the steps of:
(1) degree of depth of oil-polluted soils is investigated, when guaranteeing to cover all pollution ranges, the all parts of described device is installed, the direction being parallel to horizontal plane is from bottom to top evenly arranged five identical plate electrodes, lay degradation bacteria liquid injecting pipeline in adjacent two electrode centre positions, PRB is installed near three grades of cathode chambers 10 and reacts wall 24.
(2) by first class control system 11, one-level anode 1 is connected to the positive pole of voltage-stabilized power supply 13, first electrodes 3 is connected to the negative pole of voltage-stabilized power supply 13, run intelligent multi-channel counter 12, and the running time of one-level anode 1 and first electrodes 3 is controlled by it, run by level Four control system 22 simultaneously, liquid in degradation bacteria liquid bath 21 is injected the degradation bacteria one-level liquid injecting pipeline 1-1 between one-level anode 1 and secondary the anode 2 and degradation bacteria secondary liquid injecting pipeline 1-2 between secondary anode 2 and first electrodes 3, wherein executed voltage gradient is 1-3v/cm, liquid injecting pipeline injection speed is 5-10mL/min, inject time is 5-8h, multi-channel intelligent counter 12 gate time is 12-24h,
(3) by first class control system 11, secondary anode 2 is connected to the positive pole of voltage-stabilized power supply 13, secondary electrodes 4 is connected to the negative pole of voltage-stabilized power supply 13, run intelligent multi-channel counter 12, and the running time of secondary anode 2 and secondary electrodes 4 is controlled by it, run by level Four control system 22 simultaneously, liquid in degradation bacteria liquid bath 21 is injected the degradation bacteria secondary liquid injecting pipeline 1-2 between secondary anode 2 and the first electrodes 3 and three grades of liquid injecting pipeline 1-3 of the degradation bacteria between first electrodes 3 and secondary electrodes 4, wherein applied voltage gradient, liquid injecting pipeline injection speed, inject time, the multi-channel intelligent rolling counters forward time is all identical with step (2),
(4) by first class control system 11, first electrodes 3 is connected to the positive pole of voltage-stabilized power supply 13, three grades of negative electrodes 5 are connected to the negative pole of voltage-stabilized power supply 13, run intelligent multi-channel counter 12, and the running time of first electrodes 3 and three grades of negative electrodes 5 is controlled by it, simultaneously by running level Four control system 22, liquid in degradation bacteria liquid bath 21 is injected degradation bacteria three grades of liquid injecting pipeline 1-3 between first electrodes 3 and the secondary electrodes 4 and degradation bacteria level Four liquid injecting pipeline 1-4 between secondary electrodes 4 and three grades of negative electrodes 5, wherein applied voltage gradient, liquid injecting pipeline injection speed, inject time, the multi-channel intelligent rolling counters forward time is all identical with step (2),
(5) by first class control system 11, secondary electrodes 4 is connected the positive pole of voltage-stabilized power supply 13, three grades of negative electrodes 5 connect the negative pole of voltage-stabilized power supply 13, run intelligent multi-channel counter 12, and the running time of secondary electrodes 4 and three grades of negative electrodes 5 is controlled by it, simultaneously by running level Four control system 22, liquid in degradation bacteria liquid bath 21 is injected the degradation bacteria level Four liquid injecting pipeline 1-4 between secondary electrodes 4 and three grades of negative electrodes 5, wherein executed voltage gradient is 1-2v/cm, liquid injecting pipeline injection speed is 1-2mL/min, inject time is 1.5-3h, multi-channel intelligent counter 12 gate time is 6-12h, in aforesaid operations, PRB reacts the petroleum pollution absorption that wall 24 will be enriched near three grades of negative electrodes 5, thus repair by the soil of oil pollution,
(6) in aforesaid operations, when electrode connects the positive pole of voltage-stabilized power supply 13, in the electrode chamber of counter electrode, anolyte is added by three grades of multi-channel peristaltic pumps 20 by three-stage control system 19, when electrode connects the negative pole of voltage-stabilized power supply 13, in the electrode chamber of counter electrode, add catholyte by three grades of multi-channel peristaltic pumps 20 by three-stage control system 19; When electrode operates, the pH in anode chamber is regulated to remain between 9-11, pH in cathode chamber remains between 3-5, constantly monitor the saturation degree of electrolyte in each electrode chamber simultaneously, by second control system 15, saturated electrolyte is drawn in electrolyte treatment trough 16 by secondary multi-channel peristaltic pump 14 by overflow pipe.
The method of electric driving method combined degradation bacterium repairing polluted soil is poured on above-mentioned a kind of surface, depending on the degree of depth of soil pollution, and the quantity of adjustment electrode, but need guarantee that the superiors' electrode is negative electrode, orlop electrode is anode.
The beneficial effect of the present patent application is: (1) described device adopts multiple control system, automatically can realize renewal and the process of electrode solution in electrode chamber, and the automatic injection of degradation bacteria, considerably reduces human cost; (2) intelligent counter and control system conbined usage, the automation greatly strengthening electrode uses, and decreases personnel demand amount, operation is become simple; (3), in repair process, adopting and pour into formula electric driving method reparation pollutant, by converting the use of electrode, petroleum pollution constantly being gushed out to upper soll layer, the convenient process to pollutant; (4) arrange degradation bacteria liquid injecting pipeline between adjacent electrodes, effectively promote the degraded of soil PetroChina Company Limited., and degradation bacteria is efficient, economy, safety, non-secondary pollution; (5) at upper soll layer ate electrode, PRB permeable reactive barrier is installed, the pollutant moving to top layer can be adsorbed efficiently, accelerate the speed of soil remediation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that electric driving method combined degradation bacterium repairing polluted soil device is poured on a kind of surface.
Wherein each label is: 1-one-level anode, 2-secondary anode, 3-first electrodes, 4-secondary electrodes, 5-tri-grades of negative electrodes, 6-one-level anode chamber, 7-secondary anode chamber, 8-first electrodes room, 9-secondary electrodes room, 10-tri-grades of cathode chambers, 11-first class control system, 12-intelligent multi-channel counter, 13-voltage-stabilized power supply, 14-one-level multi-channel peristaltic pump, 15-second control system, 16-electrolyte treatment trough, 17-negative electrode liquid bath, 18-anode liquid bath, 19-second control system, 20-tri-grades of multi-channel peristaltic pumps, 21-degradation bacteria liquid bath, 22-level Four control system, 23-single channel peristaltic pump, 24-PRB reacts wall, 1-1-one-level liquid injecting pipeline, 1-2-secondary liquid injecting pipeline, 1-3-tri-grades of liquid injecting pipelines, 1-4-level Four liquid injecting pipeline.
Detailed description of the invention
Below in conjunction with accompanying drawing and instantiation, the present invention will be further described:
A device for electric driving method combined degradation bacterium repairing polluted soil is poured on surface, as shown in Figure 1.This device comprises: one-level anode 1, secondary anode 2, first electrodes 3, secondary electrodes 4, three grades of negative electrodes 5, one-level anode chamber 6, secondary anode chamber 7, first electrodes room 8, secondary electrodes room 9, three grades of cathode chambers 10, first class control system 11, intelligent multi-channel counter 12, voltage-stabilized power supply 13, one-level multi-channel peristaltic pump 14, second control system 15, electrolyte treatment trough 16, negative electrode liquid bath 17, anode liquid bath 18, three-stage control system 19, three grades of multi-channel peristaltic pumps 20, degradation bacteria liquid bath 21, level Four control system 22, single channel peristaltic pump 23, PRB reacts wall 24 and degradation bacteria liquid injecting pipeline: one-level liquid injecting pipeline 1-1, secondary liquid injecting pipeline 1-2, three grades of liquid injecting pipeline 1-3 and level Four liquid injecting pipeline 1-4, described voltage-stabilized power supply 13 connects intelligent multi-channel counter 12 and first class control system 11 successively, is then connected with three grades of negative electrodes 5 with one-level anode 1, secondary anode 2, first electrodes 3, secondary electrodes 4 respectively, described one-level anode 1, secondary anode 2, first electrodes 3, secondary electrodes 4 and three grades of negative electrodes 5 are placed in one-level anode chamber 6, secondary anode chamber 7, first electrodes room 8, secondary electrodes room 9 and three grades of cathode chambers 10 respectively, described electrolyte treatment trough 16 connects second control system 15 and secondary multi-channel peristaltic pump 14 successively, then be connected with each electrode chamber respectively, described negative electrode liquid bath 17 is connected three-stage control system 19 and three grades of multi-channel peristaltic pumps 20 with anode liquid bath 18 successively with parallel way, is then connected with each electrode chamber respectively, between adjacent electrode room, install degradation bacteria liquid injecting pipeline successively, described degradation bacteria liquid bath 21 is connected with each degradation bacteria liquid injecting pipeline above-mentioned by level Four control system 22 and single channel peristaltic pump 23, shown PRB reacts wall 24 and is arranged near electrode chamber 10, and single unit system is in sealing state.
Utilize said apparatus to carry out method that electric driving method combined degradation bacterium repairing polluted soil is poured on surface, comprises the following steps:
(1) degree of depth of oil-polluted soils is investigated, when guaranteeing to cover all pollution ranges, the all parts of described device is installed, the direction being parallel to horizontal plane is from bottom to top evenly arranged five identical plate electrodes, lay degradation bacteria liquid injecting pipeline in adjacent two electrode centre positions, PRB is installed near three grades of cathode chambers 10 and reacts wall 24.
(2) positive pole of voltage-stabilized power supply 13 is connected by first class control system control one-level anode 1, first electrodes 3 connects the negative pole of voltage-stabilized power supply 13, run intelligent multi-channel counter 12, and the running time of one-level anode 1 and first electrodes 3 is controlled by it, simultaneously by running level Four control system 22, liquid in degradation bacteria liquid bath is injected the degradation bacteria one-level liquid injecting pipeline 1-1 between one-level anode 1 and secondary the anode 2 and degradation bacteria secondary liquid injecting pipeline 1-2 between secondary anode 2 and first electrodes 3, wherein executed voltage gradient is 1-3v/cm, liquid injecting pipeline injection speed is 5-10mL/min, inject time is 5-8h, multi-channel intelligent counter 12 gate time is 12-24h.
(3) positive pole of voltage-stabilized power supply 13 is connected by first class control system control secondary anode 2, secondary electrodes 4 connects the negative pole of voltage-stabilized power supply 13, run intelligent multi-channel counter 12, and the running time of secondary anode 2 and secondary electrodes 4 is controlled by it, simultaneously by running level Four control system 22, liquid in degradation bacteria liquid bath is injected the degradation bacteria secondary liquid injecting pipeline 1-2 between secondary anode 2 and the first electrodes 3 and three grades of liquid injecting pipeline 1-3 of the degradation bacteria between first electrodes 3 and secondary electrodes 4, wherein applied voltage gradient, liquid injecting pipeline injection speed, inject time, the multi-channel intelligent rolling counters forward time is all identical with step (2).
(4) positive pole of voltage-stabilized power supply 13 is connected by first class control system control first electrodes 3, control the negative pole that three grades of negative electrodes 5 connect voltage-stabilized power supply 13, run intelligent multi-channel counter 12, and the running time of first electrodes 3 and three grades of negative electrodes 5 is controlled by it, simultaneously by running level Four control system 22, liquid in degradation bacteria liquid bath is injected degradation bacteria three grades of liquid injecting pipeline 1-3 between first electrodes 3 and the secondary electrodes 4 and degradation bacteria level Four liquid injecting pipeline 1-4 between secondary electrodes 4 and three grades of negative electrodes 5, wherein applied voltage gradient, liquid injecting pipeline injection speed, inject time, the multi-channel intelligent rolling counters forward time is all identical with step (2).
(5) positive pole of voltage-stabilized power supply 13 is connected by first class control system control secondary electrodes 4, control the negative pole that three grades of negative electrodes 5 connect voltage-stabilized power supply 13, run intelligent multi-channel counter 12, and the running time of secondary electrodes 4 and three grades of negative electrodes 5 is controlled by it, simultaneously by running level Four control system 22, liquid in degradation bacteria liquid bath is injected the degradation bacteria level Four liquid injecting pipeline 1-4 between secondary electrodes 4 and three grades of negative electrodes 5, wherein executed voltage gradient is 1-2v/cm, liquid injecting pipeline injection speed is 1-2mL/min, inject time is stop after 1.5-3h, multi-channel intelligent counter 12 gate time is 6-12h, in aforesaid operations, PRB reacts wall and the petroleum pollution be enriched near three grades of negative electrodes 5 can be adsorbed, thus repair by the soil of oil pollution.
(6) in aforesaid operations, when electrode connects the positive pole of voltage-stabilized power supply 13, in the electrode chamber of counter electrode, anolyte is added by three grades of multi-channel peristaltic pumps 20 by three-stage control system, when electrode connects the negative pole of voltage-stabilized power supply 13, in the electrode chamber of counter electrode, catholyte is added by three grades of multi-channel peristaltic pumps 20 by three-stage control system 19, when electrode operates, the pH in anode chamber is regulated to remain between 9-11, pH in cathode chamber remains between 3-5, constantly monitor the saturation degree of electrolyte in each electrode chamber simultaneously, by second control system 15, saturated electrolyte is drawn in electrolyte treatment trough 16 by secondary multi-channel peristaltic pump 14 by overflow pipe.
Being easy to for making these apparatus and method understand, further illustrating the present invention below in conjunction with the drawings and specific embodiments.
The first step: preparation is for examination soil
Gather the soil sample of 150kg, by 1mm sieve aperture (i.e. No. 18 sieves), test configurations soil PetroChina Company Limited. pollution concentration is 1000mg/kg.
Second step: configuration degradation bacteria liquid
Take oil-polluted soils as raw material, 30 DEG C, carry out enrichment and domestication under 170r/min condition, being isolated by dilution spread and line screening can be the high efficient petroleum degrading bacteria that sole carbon source grows with oil again, use the centrifugal enrichment bacterium liquid obtaining bacterial classification of Shaking culture subsequently, use glucose agar medium subsequently, at 28 DEG C, under 160r/min constant temperature jolting condition, expansion is carried out to this bacterium liquid and cultivate, be prepared into degradation bacteria liquid, leave in degradation bacteria liquid bath 21.
3rd step: select PRB permeable reactive barrier
PRB reacts filled media within the walls and adopts coarse sand and immobilization peat (proportioning is 4:1), and specification is 35cm × 25cm × 3cm (L × W × H).
4th step: select electrolyte
The NaOH of configuration 0.05mol/L is as anolyte, and the citric acid of configuration 0.05mol/L is as catholyte.
5th step: the assembling of device and operation
150kg soil sample inserted in the lucite of 40cm × 30cm × 100cm, settle a plate shaped graphite electrode in vertical direction every 20cm, electrode specification is 35cm × 25cm × 5cm (L × W × H).Equipment needed thereby is arranged according to accompanying drawing 1 device installation instructions, and step operational outfit according to the method described above, wherein voltage gradient is for being 1V/cm, be the ratio injection degradation bacteria of 4% according to mass concentration in step 2-4, voltage gradient of executing is 1.5v/cm, degradation bacteria liquid injecting pipeline injection speed is 5mL/min, inject time is 5h, multi-channel intelligent counter 12 gate time is 12h, in step 5, voltage gradient of executing is 1v/cm, degradation bacteria liquid injecting pipeline injection speed is 1mL/min, inject time is 1.5h, multi-channel intelligent counter 12 gate time is after 6h, keep in whole repair process regulating the pH in anode chamber to be 10, pH in cathode chamber is 3.5.After the reparation of electric driving method combined degradation bacterium is poured on surface, the clearance of soil PetroChina Company Limited. can reach 92.3%.
The present invention adopts and pours into formula electric driving method reparation pollutant, by converting the use of electrode, petroleum pollution is constantly poured into upper soll layer, the degradation bacteria liquid injected between this technical tie-up adjacent electrode and the PRB for adsorbing petroleum pollution near top layer electrodes react wall, more contribute to the reparation speed of petroleum pollution.Adopt multiple control system and intelligence system in the present invention, considerably reduce human cost, make the more automation of whole process.
Claims (3)
1. a device for electric driving method combined degradation bacterium repairing polluted soil is poured on surface, it is characterized in that, described device comprises: one-level anode (1), secondary anode (2), first electrodes (3), secondary electrodes (4), three grades of negative electrodes (5), one-level anode chamber (6), secondary anode chamber (7), first electrodes room (8), secondary electrodes room (9), three grades of cathode chambers (10), first class control system (11), intelligent multi-channel counter (12), voltage-stabilized power supply (13), one-level multi-channel peristaltic pump (14), second control system (15), electrolyte treatment trough (16), negative electrode liquid bath (17), anode liquid bath (18), three-stage control system (19), three grades of multi-channel peristaltic pumps (20), degradation bacteria liquid bath (21), level Four control system (22), single channel peristaltic pump (23), PRB reacts wall (24) and degradation bacteria liquid injecting pipeline: one-level liquid injecting pipeline (1-1), secondary liquid injecting pipeline (1-2), three grades of liquid injecting pipelines (1-3) and level Four liquid injecting pipeline (1-4), whole device is in sealing state, described voltage-stabilized power supply connects intelligent multi-channel counter and first class control system successively, is then connected with three grades of negative electrodes with one-level anode, secondary anode, first electrodes, secondary electrodes respectively, described one-level anode, secondary anode, first electrodes, secondary electrodes and three grades of negative electrodes are placed in each respective electrode room respectively, described electrolyte treatment trough connects second control system and secondary multi-channel peristaltic pump successively, then be connected with each electrode chamber respectively, described negative electrode liquid bath is connected three-stage control system and three grades of multi-channel peristaltic pumps with anode liquid bath successively with parallel way, is then connected with each electrode chamber respectively, between adjacent electrode room, install degradation bacteria liquid injecting pipeline successively, described degradation bacteria liquid bath is connected with each degradation bacteria liquid injecting pipeline above-mentioned by level Four control system and single channel peristaltic pump, described PRB reacts wall and is arranged near three grades of cathode chambers.
2. utilize a method for device repairing polluted soil described in claim 1, it is characterized in that, said method comprising the steps of:
(1) degree of depth of oil-polluted soils is investigated, when guaranteeing to cover all pollution ranges, the all parts of described device is installed, the direction being parallel to horizontal plane is from bottom to top evenly arranged five identical plate electrodes, lay degradation bacteria liquid injecting pipeline in adjacent two electrode centre positions, PRB is installed near three grades of cathode chambers and reacts wall;
(2) by first class control system, one-level anode is connected to the positive pole of voltage-stabilized power supply, first electrodes is connected to the negative pole of voltage-stabilized power supply, run intelligent multi-channel counter, and the running time of one-level anode and first electrodes is controlled by it, run by level Four control system simultaneously, liquid in degradation bacteria liquid bath is injected the degradation bacteria one-level liquid injecting pipeline between one-level anode and secondary anode and the degradation bacteria secondary liquid injecting pipeline between secondary anode and first electrodes, wherein executed voltage gradient is 1-3v/cm, liquid injecting pipeline injection speed is 5-10mL/min, inject time is 5-8h, the multi-channel intelligent rolling counters forward time is 12-24h,
(3) by first class control system, secondary anode is connected to the positive pole of voltage-stabilized power supply, secondary electrodes is connected to the negative pole of voltage-stabilized power supply, run intelligent multi-channel counter, and the running time of secondary anode and secondary electrodes is controlled by it, run by level Four control system simultaneously, liquid in degradation bacteria liquid bath is injected the degradation bacteria secondary liquid injecting pipeline between secondary anode and first electrodes and the degradation bacteria three grades of liquid injecting pipelines between first electrodes and secondary electrodes, wherein applied voltage gradient, liquid injecting pipeline injection speed, inject time, the multi-channel intelligent rolling counters forward time is all identical with step (2),
(4) by first class control system, first electrodes is connected to the positive pole of voltage-stabilized power supply, three grades of negative electrodes are connected to the negative pole of voltage-stabilized power supply, run intelligent multi-channel counter, and the running time of first electrodes and three grades of negative electrodes is controlled by it, run by level Four control system simultaneously, liquid in degradation bacteria liquid bath is injected the degradation bacteria three grades of liquid injecting pipelines between first electrodes and secondary electrodes and the degradation bacteria level Four liquid injecting pipeline between secondary electrodes and three grades of negative electrodes, wherein applied voltage gradient, liquid injecting pipeline injection speed, inject time, the multi-channel intelligent rolling counters forward time is all identical with step (2),
(5) by first class control system, secondary electrodes is connected the positive pole of voltage-stabilized power supply, three grades of negative electrodes connect the negative pole of voltage-stabilized power supply, run intelligent multi-channel counter, and the running time of secondary electrodes and three grades of negative electrodes is controlled by it, run by level Four control system simultaneously, liquid in degradation bacteria liquid bath is injected the degradation bacteria level Four liquid injecting pipeline between secondary electrodes and three grades of negative electrodes, wherein executed voltage gradient is 1-2v/cm, liquid injecting pipeline injection speed is 1-2mL/min, inject time is 1.5-3h, the multi-channel intelligent rolling counters forward time is 6-12h, in aforesaid operations, PRB reacts the petroleum pollution absorption that wall will be enriched near three grades of negative electrodes, thus repair by the soil of oil pollution,
(6) in aforesaid operations, when electrode connects the positive pole of voltage-stabilized power supply, in the electrode chamber of counter electrode, anolyte is added by three grades of multi-channel peristaltic pumps by three-stage control system, when electrode connects the negative pole of voltage-stabilized power supply, in the electrode chamber of counter electrode, add catholyte by three grades of multi-channel peristaltic pumps by three-stage control system; When electrode operates, the pH in anode chamber is regulated to remain between 9-11, pH in cathode chamber remains between 3-5, constantly monitor the saturation degree of electrolyte in each electrode chamber simultaneously, by second control system, saturated electrolyte is drawn in electrolyte treatment trough by secondary multi-channel peristaltic pump by overflow pipe.
3. method according to claim 2, is characterized in that, depending on the degree of depth of soil pollution, and the quantity of adjustment electrode, but need guarantee that the superiors' electrode is negative electrode, orlop electrode is anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450049.7A CN104307867B (en) | 2014-09-05 | 2014-09-05 | The apparatus and method of electric driving method combined degradation bacterium repairing polluted soil are poured on surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450049.7A CN104307867B (en) | 2014-09-05 | 2014-09-05 | The apparatus and method of electric driving method combined degradation bacterium repairing polluted soil are poured on surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104307867A true CN104307867A (en) | 2015-01-28 |
| CN104307867B CN104307867B (en) | 2016-04-20 |
Family
ID=52363256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410450049.7A Expired - Fee Related CN104307867B (en) | 2014-09-05 | 2014-09-05 | The apparatus and method of electric driving method combined degradation bacterium repairing polluted soil are poured on surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104307867B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855285A (en) * | 2016-03-31 | 2016-08-17 | 华北电力大学 | Device and method for restoring soil polluted by trichloroethylene (TCE) by combining rotating migration with permeable reactive barriers (PRBs) |
| CN105880276A (en) * | 2016-06-27 | 2016-08-24 | 上海大学 | Repair method of cadmium and lead polluted soil and electric-microorganism united permeable reaction wall repair device |
| CN107243508A (en) * | 2017-06-20 | 2017-10-13 | 青岛理工大学 | Method for rapidly treating oil-containing soil |
| CN108838202A (en) * | 2018-08-10 | 2018-11-20 | 山东兴润园林生态股份有限公司 | A kind of ecological soil restorative procedure |
| CN108906852A (en) * | 2018-07-09 | 2018-11-30 | 北京中岩大地科技股份有限公司 | A kind of low-permeability saliferous offscum in alkali removes saline and alkaline method |
| CN109759437A (en) * | 2019-01-21 | 2019-05-17 | 胡鹏程 | A kind of chemical pollution soil remediation construction method and constructing device |
| CN111687203A (en) * | 2020-07-16 | 2020-09-22 | 常州大学 | Device and method for remedying heavy metal contaminated soil through light energy-vertical electrokinetic remediation |
| CN112658028A (en) * | 2020-12-30 | 2021-04-16 | 森特士兴集团股份有限公司 | Electrochemical-microbial coupling repair system and application thereof |
| CN112974497A (en) * | 2021-03-29 | 2021-06-18 | 河南鸣皋智能科技有限公司 | Agricultural heavy metal pollution farmland soil repair system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09215972A (en) * | 1996-02-09 | 1997-08-19 | Ohbayashi Corp | Anion contaminant removing apparatus |
| KR20030072053A (en) * | 2002-03-05 | 2003-09-13 | 주식회사 에코필 | system of Electrokinetic soil remediation |
| US20080132746A1 (en) * | 2006-05-31 | 2008-06-05 | Sean Frisky | In-situ salt remediation and ground heating technology |
| JP2008200668A (en) * | 2007-10-02 | 2008-09-04 | Tosaka Takuya | Treatment method and its apparatus of 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 |
| CN103286121A (en) * | 2013-05-09 | 2013-09-11 | 中国石油大学(华东) | Two-dimensional inhomogeneous electric field experiment method used for electrokinetic restoration of polluted soil |
| CN103286119A (en) * | 2013-06-07 | 2013-09-11 | 华北电力大学 | Device and method for restoring chlorobenzene-type organism polluted soil and underground water |
| CN103896369A (en) * | 2014-04-11 | 2014-07-02 | 金松 | Electrochemical device for treating pollution caused by organic matters and inorganic matters in soil and underground water and application of electrochemical device |
| CN103962372A (en) * | 2014-05-20 | 2014-08-06 | 华北电力大学 | Device and method for repairing caesium contaminated soil with cathode approximation method |
-
2014
- 2014-09-05 CN CN201410450049.7A patent/CN104307867B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09215972A (en) * | 1996-02-09 | 1997-08-19 | Ohbayashi Corp | Anion contaminant removing apparatus |
| KR20030072053A (en) * | 2002-03-05 | 2003-09-13 | 주식회사 에코필 | system of Electrokinetic soil remediation |
| US20080132746A1 (en) * | 2006-05-31 | 2008-06-05 | Sean Frisky | In-situ salt remediation and ground heating technology |
| JP2008200668A (en) * | 2007-10-02 | 2008-09-04 | Tosaka Takuya | Treatment method and its apparatus of contaminated soil |
| CN103286121A (en) * | 2013-05-09 | 2013-09-11 | 中国石油大学(华东) | Two-dimensional inhomogeneous electric field experiment method used for electrokinetic restoration of polluted 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 |
| CN103286119A (en) * | 2013-06-07 | 2013-09-11 | 华北电力大学 | Device and method for restoring chlorobenzene-type organism polluted soil and underground water |
| CN103896369A (en) * | 2014-04-11 | 2014-07-02 | 金松 | Electrochemical device for treating pollution caused by organic matters and inorganic matters in soil and underground water and application of electrochemical device |
| CN103962372A (en) * | 2014-05-20 | 2014-08-06 | 华北电力大学 | Device and method for repairing caesium contaminated soil with cathode approximation method |
Non-Patent Citations (2)
| Title |
|---|
| 章慧: "生物表面活性剂协同菲降解菌增强电动力去除砂土中的菲", 《中国优秀硕士学位论文全文数据库》 * |
| 郑燊燊: "阴极逼近法电动修复贵州地区典型汞污染土壤的研究", 《中国优秀博硕士学位论文全文数据库(硕士) 工程科技Ⅰ辑》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855285A (en) * | 2016-03-31 | 2016-08-17 | 华北电力大学 | Device and method for restoring soil polluted by trichloroethylene (TCE) by combining rotating migration with permeable reactive barriers (PRBs) |
| CN105855285B (en) * | 2016-03-31 | 2018-11-06 | 华北电力大学 | A kind of device and method that rotation migration joint PRB repairs trichloro ethylene contaminated soil |
| CN105880276A (en) * | 2016-06-27 | 2016-08-24 | 上海大学 | Repair method of cadmium and lead polluted soil and electric-microorganism united permeable reaction wall repair device |
| CN107243508A (en) * | 2017-06-20 | 2017-10-13 | 青岛理工大学 | Method for rapidly treating oil-containing soil |
| CN108906852A (en) * | 2018-07-09 | 2018-11-30 | 北京中岩大地科技股份有限公司 | A kind of low-permeability saliferous offscum in alkali removes saline and alkaline method |
| CN108906852B (en) * | 2018-07-09 | 2021-07-06 | 北京中岩大地科技股份有限公司 | Method for removing salt and alkali from low-permeability salt-containing alkali waste residue |
| CN108838202A (en) * | 2018-08-10 | 2018-11-20 | 山东兴润园林生态股份有限公司 | A kind of ecological soil restorative procedure |
| CN109759437A (en) * | 2019-01-21 | 2019-05-17 | 胡鹏程 | A kind of chemical pollution soil remediation construction method and constructing device |
| CN111687203A (en) * | 2020-07-16 | 2020-09-22 | 常州大学 | Device and method for remedying heavy metal contaminated soil through light energy-vertical electrokinetic remediation |
| CN112658028A (en) * | 2020-12-30 | 2021-04-16 | 森特士兴集团股份有限公司 | Electrochemical-microbial coupling repair system and application thereof |
| CN112974497A (en) * | 2021-03-29 | 2021-06-18 | 河南鸣皋智能科技有限公司 | Agricultural heavy metal pollution farmland soil repair system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104307867B (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104307867B (en) | The apparatus and method of electric driving method combined degradation bacterium repairing polluted soil are poured on surface | |
| CN102583712B (en) | Method and system by using micro-nano bubbles to perform reinforcement in-situ remediation on polluted ground water | |
| CN107413837A (en) | Device and the application of oil heavy-metal composite pollution soil are repaired with electronic microbial association | |
| CN103286119A (en) | Device and method for restoring chlorobenzene-type organism polluted soil and underground water | |
| CN107363092B (en) | Remediation system for composite contaminated soil and application method thereof | |
| CN102531201A (en) | Method and device for utilizing microorganism in-situ circulation cultivation to treat water body pollution | |
| CN102463254A (en) | Novel electrokinetic intensified technology and process for biologically remedying polycyclic aromatic hydrocarbon polluted soil | |
| CN101172732A (en) | Method for renovating groundwater in situ with chemical and biological composite reaction wall | |
| CN104003594B (en) | Improve the method for sewage plant sludge bio-stabilization speed | |
| CN102757132B (en) | Method for treating rural domestic sewage by utilizing denitrifying phosphate-accumulating organisms and invigorated artificial wetland | |
| CN102776145B (en) | Denitrifying polyphosphate accumulation bacterium and application of same in sewage treatment | |
| CN202610083U (en) | Device for removing heavy metal from sludge in coupled film separating technology and electrokinetic technology | |
| CN102896143A (en) | Electric surfactant combined repair contaminated soil experimental device | |
| CN110883085A (en) | ERB combined remediation method and device for organic pesticide pollution | |
| CN104876409B (en) | The devices and methods therefor of heavy metal and polycyclic aromatic hydrocarbon in a kind of removing river bottom mud | |
| CN104368592B (en) | A kind of As polluted soil becomes periodically complex repairation method | |
| CN104909469A (en) | River cross-section wastewater biological purification system | |
| CN103787557B (en) | A kind of controlling device of integral treatment device | |
| CN107983762A (en) | Solar photovoltaic driven bioelectrochemical soil remediation system and method | |
| CN102491535A (en) | Method using sulfate-reducing bacteria for demineralization of lakes and rivers | |
| CN211304230U (en) | ERB combined repairing device for organic pesticide pollution | |
| CN104961297A (en) | Integrated sewage bio-treatment column | |
| CN104858231B (en) | A kind of contaminated soil remediation system adopting recirculating | |
| CN103771590A (en) | Method and device for processing sewage by virtue of multistage alternative microbial generator | |
| CN105819576A (en) | Biological ferrous sulfide and uranium-polluted underground water treatment permeation reaction wall based on same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |