CN105728447B - The soil remediation method of flolimat ingredient in a kind of removal agricultural land soil - Google Patents
The soil remediation method of flolimat ingredient in a kind of removal agricultural land soil Download PDFInfo
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- CN105728447B CN105728447B CN201610313882.6A CN201610313882A CN105728447B CN 105728447 B CN105728447 B CN 105728447B CN 201610313882 A CN201610313882 A CN 201610313882A CN 105728447 B CN105728447 B CN 105728447B
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- 239000002689 soil Substances 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000004615 ingredient Substances 0.000 title claims abstract description 15
- 238000005067 remediation Methods 0.000 title claims abstract description 14
- 238000006731 degradation reaction Methods 0.000 claims abstract description 44
- 230000015556 catabolic process Effects 0.000 claims abstract description 23
- 230000000813 microbial effect Effects 0.000 claims abstract description 23
- 241000193755 Bacillus cereus Species 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 30
- 230000000694 effects Effects 0.000 claims description 18
- 238000012216 screening Methods 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 18
- 239000012535 impurity Substances 0.000 claims description 15
- 238000000227 grinding Methods 0.000 claims description 8
- 238000005485 electric heating Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 5
- 244000005700 microbiome Species 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims description 3
- 238000010828 elution Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 108091000080 Phosphotransferase Proteins 0.000 abstract description 7
- 102000020233 phosphotransferase Human genes 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 150000002148 esters Chemical class 0.000 abstract description 5
- 125000000250 methylamino group Chemical group [H]N(*)C([H])([H])[H] 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 231100000481 chemical toxicant Toxicity 0.000 abstract description 2
- 239000003440 toxic substance Substances 0.000 abstract description 2
- 238000012271 agricultural production Methods 0.000 abstract 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- FATAVLOOLIRUNA-UHFFFAOYSA-N formylmethyl Chemical group [CH2]C=O FATAVLOOLIRUNA-UHFFFAOYSA-N 0.000 abstract 1
- 239000003987 organophosphate pesticide Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- MCWXGJITAZMZEV-UHFFFAOYSA-N dimethoate Chemical compound CNC(=O)CSP(=S)(OC)OC MCWXGJITAZMZEV-UHFFFAOYSA-N 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000193830 Bacillus <bacterium> Species 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- OIPILFWXSMYKGL-UHFFFAOYSA-N acetylcholine Chemical compound CC(=O)OCC[N+](C)(C)C OIPILFWXSMYKGL-UHFFFAOYSA-N 0.000 description 2
- 229960004373 acetylcholine Drugs 0.000 description 2
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- -1 flolimat Chemical compound 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 102000003914 Cholinesterases Human genes 0.000 description 1
- 108090000322 Cholinesterases Proteins 0.000 description 1
- 239000005947 Dimethoate Substances 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 239000005949 Malathion Substances 0.000 description 1
- 241000124008 Mammalia Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 229940048961 cholinesterase Drugs 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- OEBRKCOSUFCWJD-UHFFFAOYSA-N dichlorvos Chemical compound COP(=O)(OC)OC=C(Cl)Cl OEBRKCOSUFCWJD-UHFFFAOYSA-N 0.000 description 1
- JXSJBGJIGXNWCI-UHFFFAOYSA-N diethyl 2-[(dimethoxyphosphorothioyl)thio]succinate Chemical compound CCOC(=O)CC(SP(=S)(OC)OC)C(=O)OCC JXSJBGJIGXNWCI-UHFFFAOYSA-N 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000000749 insecticidal effect Effects 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 231100000225 lethality Toxicity 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229960000453 malathion Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229960001952 metrifonate Drugs 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- PZXOQEXFMJCDPG-UHFFFAOYSA-N omethoate Chemical compound CNC(=O)CSP(=O)(OC)OC PZXOQEXFMJCDPG-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- LCCNCVORNKJIRZ-UHFFFAOYSA-N parathion Chemical compound CCOP(=S)(OCC)OC1=CC=C([N+]([O-])=O)C=C1 LCCNCVORNKJIRZ-UHFFFAOYSA-N 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008684 selective degradation Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- NFACJZMKEDPNKN-UHFFFAOYSA-N trichlorfon Chemical compound COP(=O)(OC)C(O)C(Cl)(Cl)Cl NFACJZMKEDPNKN-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
Abstract
The invention discloses a kind of soil remediation methods of flolimat ingredient in removal agricultural land soil.Bacillus cereus is utilized under conditions of having transphosphorylase participation in this method creativeness, it is reacted by microbial degradation, make the main component in flolimat --- O, C P keys in O dimethyl S [2 (methylamino) 2 oxoethyl] D2EHDTPA ester molecule are broken, and are gradually degraded as CO within the temperature range of 35 ~ 38 DEG C2、N2And H2Simple compounds harmless O etc., the soil after microbial degradation purified treatment repeat and are applied in agricultural production.Meanwhile this method has prevented soil remediation process secondary harm caused by environment substantially without using any toxic chemical substance is not generated yet.
Description
Technical field
The present invention relates to a kind of soil remediation methods of flolimat ingredient in removal agricultural land soil, belong in environmental protection
Soil remediation field.
Background technology
Organophosphorus pesticide is the primary categories in current pesticide, because it has economic, efficient, side for prevention agricultural insect pest
Just the features such as, therefore be worldwide mass produced and be widely used.Organophosphorus pesticide after application can be constantly from applying area
It spreads, into systems such as soil, water, air and plants, water environment, soil environment, atmospheric environment, vegetation etc. is caused around
Serious pollution.Organophosphorus pesticide has inhibiting effect to cholinesterase in organism, so that it is lost the ability for decomposing acetylcholine, makes
It is accumulated at acetylcholine, causes nerve dysfunction, so as to cause the damage of human body, such as spasm, paralysis, severe patient can cause extremely
It dies.
Currently, be insecticide in the organophosphorus pesticide overwhelming majority that China produces and uses, such as common parathion, interior suction
Phosphorus, malathion, flolimat, metrifonate and DDVP etc..Wherein, especially with the production of flolimat and most widely used,
Correspondingly, it is also that can not be ignored to the harm of China's agricultural land soil and agroecological environment.
Flolimat also known as omethoate, chemical name：O, O- dimethyl-S- [2- (methylamino) -2- oxoethyls] thio phosphorus
Acid esters, sterling are colourless transparent oil liquid, and relative density 1.32, about 135 DEG C of boiling point can be a variety of with water, ethyl alcohol and hydro carbons etc.
Solvent is miscible, is slightly soluble in ether, is practically insoluble in petroleum ether.Crude oil is pale yellow to yellow transparent oily liquids, flolimat breast
Oil is pale yellow oily liquid.
Flolimat is a kind of typical organophosphorus pesticide, with broad spectrum disinfestation, the spies such as absorbability is strong, insecticidal activity is high
Point.Flolimat as a kind of to the mankind and the highly toxic organophosphorus pesticide of mammal, it is high to people and animals' lethality, can also cause
Pesticide residue, long-term large area cause serious pollution using meeting to environment.
Administering the method that Soil oxidation dimethoate pesticide pollutes includes mainly：Chemical method, Physical and bioanalysis.Wherein physics
Method and chemical method, such as burn, electrochemical process all in the prevalence of processing cost it is high, easily cause secondary pollution, poor removal effect
The shortcomings of；And biological rule mainly degrades to the selective degradation mechanism of flolimat using microorganism, method processing effect
Fruit is apparent, is played an important role during degrading residual oxidization Rogor, becomes and administers the pollution of residual oxidization Rogor at present
One of main means.Edaphon mainly passes through two kinds of effect degradation flolimats：First, mineralization, flolimat can be with
Utilization is decomposed by the microorganisms as the nutrient source of microorganism；Second is that Co metabolism acts on.
Currently, existing flolimat microbial technology there are efficiency low, technical sophistication, influence factor are numerous, at
The deficiencies of this is high.Therefore, it is necessary to break away from existing technical thought, hews out and administer flolimat pollution in soil, realize soil
The new way of earth reparation, and then flolimat contaminated soil recovery technique in a kind of removal soil of new type of exploitation.
Invention content
To solve the deficiencies in the prior art, the present invention provides flolimat ingredients in a kind of removal agricultural land soil
Soil remediation method, it is to be repaired containing flolimat ingredient agricultural land soil concentration is stored in original soil hopper, herein into
Row centralized collection simultaneously completes preliminarily stabilised process, and the soil to be repaired in original soil hopper is delivered to drum by screw elevating conveyor
Wind sorting machine removes low-density, large volume sundries, the outlets of air blast sorting machine such as plastics, the paper in soil at this and passes through biography
Band connection vibrating screening machine is sent, higher density, large-sized impurity in soil are removed at this, the outlet of vibrating screening machine passes through biography
Band connection magnetic force screening machine is sent, the metal impurities in soil are removed at this, the outlet of magnetic force screening machine is ground by transmitting band connection
Soil is ground to grain size herein and is less than 10mm by grinding machine, and the outlet of grinding and crushing machine is by transmitting the micro- life of band connection three-level
Object spray degradation reaction device, three level microbes spray degradation reaction device discharge port by transmit band connection adjustable type spray column,
Further elution purification is carried out herein, removes soluble impurity, the outlet of adjustable type spray column is by transmitting band connection electric heating drum
Wind dryer, herein will be through moisture drying removal contained in washed off soil, and the outlet of electric heating air blast dryer passes through conveyer belt
Connect rehabilitating soil warehouse, it is repaired after soil outward transport recycle.
Wherein, three level microbes spray degradation reaction device is sequentially connected in series by the identical reactor of three groups of functions, three groups
Reactor is horizontally mounted fixation, and reactor material selects chromansil steel, upper left quarter to be equipped with soil feed inlet, and right lower quadrant is set
There is soil discharge port, often covers reactor top and be equipped with soil storage bin hopper, conveyed equipped with rotation at soil storage bin hopper lower exit port
Blade, reactor middle part arranged on left and right sides are respectively equipped with 8 atomizers, and reactor bottom is equipped with microbial degradation reactive tank, reaction
5 electric heater units have been mounted side by side below slot, band connection is conveyed by screw lifting between the outlet and entrance of every group of reactor.
By the fine grained soil that grinds that treated, passes through three level microbes and spray the feed inlet of degradation reaction device upper left quarter and enter
First order inside reactor is first temporarily stored into soil storage bin hopper and is stablized, later in the rotation conveying of rotation conveying blade
Under effect, suitable soil can be discharged from the outlet below soil storage bin hopper, and be fallen to below reactor by gravity
Microbial degradation reactive tank in, in this dropping process, 8 atomizers of arranged on left and right sides can will be waxy in the middle part of reactor
The mixed solution of bacillus and transphosphorylase is uniformly sprayed in the soil of whereabouts, sprays Bacillus cereus and phosphoric acid
The soil of mutase is fallen into microbial degradation reactive tank, by the heat effect of electric heater unit below reactive tank, makes soil
Temperature maintains 35 ~ 38 DEG C, and Bacillus cereus, by bio-degradation reactions, makes under conditions of having transphosphorylase participation
In main component in flolimat --- O, O- dimethyl-S- [2- (methylamino) -2- oxoethyls] D2EHDTPA ester molecule
C-P keys be broken, and be gradually degraded as CO under this preference temperature2、N2And H2Simple compounds harmless O etc., warp
The soil after microbial degradation reaction is crossed, is delivered to the feed inlet of the second stage reactor through screw lifting conveyer belt, and into the
In the soil storage bin hopper of second reactor, process is then repeated the above, by treated the soil of microbial degradation three times,
It is discharged into next treatment process from the discharge port of third stage reactor；Wherein, the effect of air blast sorting machine is blown by air blast
It sweeps, low-density, the large volume sundries such as plastics, paper in soil is detached and removed；Wherein, the effect of vibrating screening machine is logical
Vibration sorting is crossed, higher density, large-sized impurity in soil are removed；Wherein, the effect of magnetic force screening machine is to utilize electromagnetic force
Attract and removes the metal impurities in soil；Wherein, the effect of adjustable type spray column is will to pass through the spray degradation of three level microbes
Soil after reactor for treatment is eluted, and soluble impurity therein is further removed.
Further, the volume of every group of reactor is 180m in three level microbes spray degradation reaction device3, soil storage bin hopper
45m can be accommodated3Soil, microbial degradation reactive tank can accommodate 60m3Soil, screw lifting conveyer belt is per minute can be defeated
Send 1.5m3Soil.
Further, a diameter of 5.0 ~ 22 μm of the atomizing particle of the atomizer of three level microbes spray degradation reaction device, just
Normal operating pressure is 20 ~ 65kg.
Further, thirdly level microbe sprays degradation reaction device, the operating voltage of electric heater unit is 380V, heating temperature
Ranging from 30 ~ 45 DEG C.
The advantage of the invention is that：
（1）The present invention has broken away from existing flolimat contaminated soil remediation treatment process, and creative being utilized is waxy
Bacillus have transphosphorylase participation under conditions of, reacted by microbial degradation, make in flolimat it is main at
Point --- the C-P keys in O, O- dimethyl-S- [2- (methylamino) -2- oxoethyls] D2EHDTPA ester molecule are broken, and
It is gradually degraded as CO within the temperature range of 35 ~ 38 DEG C2、N2And H2Simple compounds harmless O etc., it is thorough to make soil obtain
The purification reparation at bottom, treatment effeciency is up to 99.2%.
（2）The present invention has prevented soil remediation process to environment substantially without using any toxic chemical substance is not generated yet
Caused by secondary harm, the economic benefit and environmental benefit of highly significant can be brought.
（3）The present invention can be according to the actual concentrations of flolimat ingredient in actual treatment soil amount and soil, real-time selection
The unlatching quantity and sprinkling flow of atomizer, can effectively save processing material and the energy, greatly reduce processing cost.
（4）The principle of the invention is simple and practicable, and design and construction cost is relatively low, and treatment effect is preferable, operation expense
It is very low, be conducive to promote and apply on a large scale.
Description of the drawings
Fig. 1 is the equipment schematic diagram of the present invention.
In figure：1- original soils hopper, 2- air blast sorting machine, 3- vibrating screening machines, 4- magnetic force screening machine, 5- grinding and crushing machines,
Tri- level microbes of 6- spray degradation reaction device, 7- adjustable types spray column, 8- electric heating air blast dryer, 9- rehabilitating soil warehouses
Fig. 2 is the schematic diagram of three level microbes spray degradation reaction device.
61- feed inlets, 62- soil storage bin hopper, 63- rotation conveyings blade, 64- atomizers, 65- microbial degradations reaction
Slot, 66- electric heater units, 67- screw liftings conveyer belt, 68- discharge ports.
Specific implementation mode
The soil remediation method of flolimat ingredient in removal agricultural land soil as shown in Figure 1, to be repaired contains oxidation
The agricultural land soil concentration of Rogor ingredient is stored in original soil hopper 1, is carried out centralized collection herein and is completed preliminarily stabilised process, former
Soil to be repaired in earth material bucket 1 is delivered to air blast sorting machine 2 by screw elevating conveyor, and the modeling in soil is removed at this
The outlet of the low-density such as material, paper, large volume sundries, air blast sorting machine 2 is gone herein by transmitting band connection vibrating screening machine 3
Except higher density, large-sized impurity in soil, the outlet of vibrating screening machine 3 is by transmitting band connection magnetic force screening machine 4, herein
The metal impurities in soil are removed, soil is herein ground by transmitting band connection grinding and crushing machine 5 in the outlet of magnetic force screening machine 4
It being milled to grain size and is less than 10mm, the outlet of grinding and crushing machine 5 sprays degradation reaction device 6 by transmitting band connection three-level microorganism, and three
Level microbe sprays the discharge port of degradation reaction device 6 by transmitting band connection adjustable type spray column 7, is further eluted herein
Purification removes soluble impurity, and the outlet of adjustable type spray column 7, herein will be through by transmitting band connection electric heating air blast dryer 8
Moisture drying removal contained in washed off soil, the outlet of electric heating air blast dryer 8 is by transmitting band connection rehabilitating soil warehouse
9, it is repaired after soil outward transport recycle.Wherein, three level microbes spray degradation reaction device 6 by the identical reaction of three groups of functions
Device is sequentially connected in series, and three groups of reactors are horizontally mounted fixation, and reactor material selects chromansil steel, every group of reactor
Volume is 180m3, for upper left quarter equipped with soil feed inlet 61, it is equal often to cover reactor top equipped with soil discharge port 68 for right lower quadrant
Equipped with soil storage bin hopper 62, soil storage bin hopper can accommodate 45m3Soil, it is defeated equipped with rotating at 62 lower exit port of soil storage bin hopper
Send blade 63, reactor middle part arranged on left and right sides that 8 atomizers 64 are respectively housed, reactor bottom is reacted equipped with microbial degradation
Slot 65 can accommodate 60m3Soil, be mounted side by side 5 electric heater units 66 below reactive tank, the outlet of every group of reactor with
It is connected by screw lifting conveyer belt 67 between entrance.By the fine grained soil that grinds that treated, pass through three level microbes
The feed inlet 61 for spraying 6 upper left quarter of degradation reaction device enters first order inside reactor, is first temporarily stored into soil storage bin hopper 62
Stablized, later under the rotation conveying effect of rotation conveying blade 63, suitable soil can be below soil storage bin hopper
Outlet discharge, and fallen in the microbial degradation reactive tank 65 below reactor by gravity, in this dropping process,
8 atomizers 64 of arranged on left and right sides can be uniform by the mixed solution of Bacillus cereus and transphosphorylase in the middle part of reactor
It is sprayed in the soil of whereabouts, a diameter of 5.0 ~ 22 μm of the atomizing particle of atomizer, service pressure is 20 ~ 65kg, spray
The soil for spilling Bacillus cereus and transphosphorylase is fallen into microbial degradation reactive tank 65, is added by electricity below reactive tank
The heat effect of thermal 66 makes the soil moisture maintain 35 ~ 38 DEG C, and Bacillus cereus is in the item for having transphosphorylase to participate in
Under part, by bio-degradation reactions, make the main component in flolimat --- O, O- dimethyl-S- [2- (methylamino) -2- oxygen
For ethyl] the C-P keys in D2EHDTPA ester molecule are broken, and are gradually degraded as CO under this preference temperature2、N2With
H2Simple compounds harmless O etc., the soil after microbial degradation is reacted, through screw lifting conveyer belt 67 with per minute
1.5m3Speed be delivered to the feed inlet 61 of the second stage reactor, and enter in the soil storage bin hopper 62 of second level reactor, and
After repeat the above process, by treated the soil of microbial degradation three times, from 68 row of discharge port of third stage reactor
Go out to enter next treatment process；Wherein, the effect of air blast sorting machine 2 is by air blasting blowing, by plastics, the paper etc. in soil
Low-density, large volume sundries are detached and are removed；Wherein, the effect of vibrating screening machine 3 be by vibrate sort, remove soil in compared with
High density, large-sized impurity；Wherein, the effect of magnetic force screening machine 4 is using electromagnetic attracting force and to remove the metal in soil
Impurity；Wherein, the effect of adjustable type spray column 7 is will to pass through three level microbes spray degradation reaction device treated that soil carries out
Elution, further removes soluble impurity therein.
By this system treated agricultural land soil, the removal efficiency of flolimat ingredient is up to 99.2%.
Claims (4)
1. the soil remediation method of flolimat ingredient in a kind of removal agricultural land soil, which is characterized in that be stored in original soil hopper
The agricultural land soil to be repaired containing flolimat ingredient be concentrated through screw elevating conveyor and be delivered to air blast sorting machine,
Low-density, large volume sundries in this removal soil, the outlet of air blast sorting machine is by transmitting band connection vibrating screening machine, herein
Higher density, large-sized impurity in soil are removed, the outlet of vibrating screening machine is by transmitting band connection magnetic force screening machine, herein
The metal impurities in soil are removed, soil is herein ground by transmitting band connection grinding and crushing machine in the outlet of magnetic force screening machine
It is less than 10mm to grain size, the outlet of grinding and crushing machine sprays degradation reaction device by transmitting band connection three-level microorganism, and three-level is micro-
By transmitting band connection adjustable type spray column, further elution herein removes solvable the discharge port of biology spray degradation reaction device only
Property impurity, by transmitting band connection electric heating air blast dryer, the outlet of electric heating air blast dryer is logical for the outlet of adjustable type spray column
Cross transmission band connection rehabilitating soil warehouse, it is repaired after soil outward transport recycle；
Wherein, three level microbes spray degradation reaction device is sequentially connected in series by the identical reactor of three groups of functions, upper left quarter
Equipped with soil feed inlet, right lower quadrant is equipped with soil discharge port, often covers three level microbes spray degradation reaction device top and is equipped with soil
Earth storage bin hopper, equipped with rotation conveying blade at soil storage bin hopper lower exit port, arranged on left and right sides is respectively equipped with 8 mists in the middle part of reactor
Change nozzle, reactor bottom is equipped with microbial degradation reactive tank, 5 electrical heating have been mounted side by side below microbial degradation reactive tank
Device conveys band connection between the outlet and entrance of every group of reactor by screw lifting, by grinding that treated thin
Grain soil, the feed inlet that degradation reaction device upper left quarter is sprayed by three level microbes enter first order inside reactor, are rotating
Under the rotation conveying effect for conveying blade, suitable soil can be discharged from the outlet below soil storage bin hopper and drop down onto the first order reaction
In microbial degradation reactive tank below device, in this dropping process, 8 atomizers can be by bacillus cereus and phosphoric acid
The mixed solution of mutase is uniformly sprayed in the soil of whereabouts, passes through adding for microbial degradation reactive tank lower section electric heater unit
Heat effect makes the soil moisture maintain 35 ~ 38 DEG C, is gradually degraded as CO2、N2And H2O, the soil after microbial degradation is reacted
Earth is delivered to the feed inlet of the second stage reactor through screw lifting conveyer belt, and enters the soil storage bin hopper of second level reactor
In, process is then repeated the above, by treated the soil of microbial degradation three times, from the discharge port of third stage reactor
It is discharged into next treatment process.
2. the soil remediation method of flolimat ingredient in removal agricultural land soil according to claim 1, which is characterized in that
The volume of every group of reactor is 180m3, soil storage bin hopper can accommodate 45m3Soil, microbial degradation reactive tank can accommodate
60m3Soil, screw lifting conveyer belt transportable 1.5m per minute3Soil.
3. the soil remediation method of flolimat ingredient in removal agricultural land soil according to claim 1, which is characterized in that
A diameter of 5.0 ~ 22 μm of the atomizing particle of the atomizer of reactor.
4. the soil remediation method of flolimat ingredient in removal agricultural land soil according to claim 1, which is characterized in that
The operating voltage that three level microbes spray the electric heater unit of degradation reaction device is 380V, and heating temperature range is 30 ~ 45 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610313882.6A CN105728447B (en) | 2016-05-12 | 2016-05-12 | The soil remediation method of flolimat ingredient in a kind of removal agricultural land soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN109454108B (en) * | 2018-11-28 | 2021-03-02 | 通化鑫鸿新材料有限公司 | Microbial remediation equipment for heavy metal contaminated soil and remediation method thereof |
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Effective date of registration: 20210819 Address after: 431824 Taizi Road (nonggu industrial building), Qujialing Management District, Jingmen City, Hubei Province Patentee after: HUBEI NONGGU CHANGSHENG SOIL RESTORATION TECHNOLOGY Co.,Ltd. Address before: 1137 Xidai village, Ciwu Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: Lou Linhua |