CN107552560A - A kind of method using plant combined microorganism remediation heavy-metal contaminated soil - Google Patents
A kind of method using plant combined microorganism remediation heavy-metal contaminated soil Download PDFInfo
- Publication number
- CN107552560A CN107552560A CN201710747963.1A CN201710747963A CN107552560A CN 107552560 A CN107552560 A CN 107552560A CN 201710747963 A CN201710747963 A CN 201710747963A CN 107552560 A CN107552560 A CN 107552560A
- Authority
- CN
- China
- Prior art keywords
- steam
- contaminated soil
- heavy
- soil
- vetiver
- 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
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of method using plant combined microorganism remediation heavy-metal contaminated soil, concretely comprise the following steps：(1) a diameter of 30~40mm mesh duct will be buried after contaminated soil deep tillage 40cm, sterilizing liquid is passed through from pipeline；(2) base manure is discharged, then by microorganism mix bacterium agent and water in mass ratio 1:Sprayed after 5 mixing by every mu of 20~30kg；(3) yellow ginger is planted, sowed seeds between two line spaces vetiver, Pinnate Beggarticks seed mixture；(4) vetiver planted between yellow ginger and Pinnate Beggarticks are rooted out and reclaim heavy metal by 9 annual~October, are sowed seeds again in 3~April of the coming year, and root out yellow ginger and vetiver, Pinnate Beggarticks after continuous 3 years recovery heavy metal together.Soil remediation method repairing effect of the invention is good, expense is low, be easily managed and operate, does not produce secondary pollution, is with a wide range of applications.
Description
Technical field
The present invention relates to the method that contaminated soil is administered, and in particular to one kind utilizes plant combined microorganism remediation heavy metal
The method of contaminated soil.
Background technology
Farmland Soil Pollution turns into one of an important factor for restricting agricultural sustainable development and food security.It is heavy metal-polluted
The governance way of dye soil has two kinds：One kind is to remove pollutant, and another kind is the presence shape for changing heavy metal in soil
State, fix it.Different recovery techniques and measure are generated around both approach, mainly there is engineering measure, physics, chemistry
Recovery technique, agronomy regulation measure etc..These methods respectively have its advantage, but it is larger to be usually present quantities, costly, Yi Zao
Into secondary pollution and cause the ecological problems such as soil texture destruction and soil fertility degeneration.
Biological prosthetic is a kind of new method using biotechnology pollution administration soil.At present, bioremediation technology is main
Concentrate on plant and the aspect of microorganism two.Phytoremediation technology is that one kind cultivates phytoremediation with much money using nature growth or heredity
Belong to the technology of contaminated soil.According to its mechanism and mechanism, the phytoremediation technology of heavy-metal contaminated soil can be divided into plant
Extraction, phytovolatilization and the type of plant stability 3.Plant extract, i.e., gold is drawn from soil using heavy metal hyperaccumulative plant
Belong to pollutant, then gather in aerial part and focused on, continuously plant the plant, reach reduction or remove a soil huge sum of money
Belong to the purpose of pollution；In addition, plant can also be improved to increase the biological effectiveness of heavy metal in soil by adding some organic complexing agents
The absorption of thing heavy metal.Phytovolatilization, its mechanism are to absorb metal using root system of plant, are translated into gaseous material volatilization
Into air, to reduce soil pollution；That this respect most study is metalloid element Hg and nonmetalloid Se at present.Plant
It is stable, the activity of heavy metal is reduced using the platymiscium of resistance to a huge sum of money or over-accumulated plant, is leached so as to reduce heavy metal to underground
Water or the possibility that further pollution environment is spread by air, its mechanism are mainly by accumulation of the metal in root, precipitation
Or root table is absorbed to strengthen the solidification of heavy metal in soil.
The content of the invention
The technical problem to be solved in the present invention is to provide one kind to utilize plant combined microorganism remediation heavy-metal contaminated soil
Method.
To solve the above problems, technical scheme proposed by the present invention is：One kind utilizes a plant combined microorganism remediation huge sum of money
The method of category contaminated soil comprises the following steps：
(1) will be thin by earth culture after contaminated soil deep tillage 40cm, then in underground, 40cm buries a diameter of 30~40mm's
Mesh duct, pipeline are provided with 2~3mm passage per 10cm, and one layer of filter membrane is wrapped up in the outside of passage, then with anti-
Thermoplastic materials cloth is pressed and sealed by ground mulching, and by the surrounding of resistant plastic cloth with soil, and sterilization is then passed through into pipeline
Liquid, every mu per hour intake be 1 ton, handle 3~4h after stop 1~2h, then proceed to handle, continuous processing 1~2 day；
(2) after sterilization processing, base manure is discharged by every mu of 50~60kg, microorganism mix bacterium agent and water are then pressed into matter
Measure ratio 1:Sprayed after 5 mixing by every mu of 20~30kg, it is then shallow to turn over smooth after 5~8cm, other processing are not done places 15~30
My god；
(3) by field soil scarifying, then by 100~130cm line-spacing ditching, 25~35cm of ditch depth, then by yellow ginger
Root block is embedded to wherein, and the spacing of adjacent two pieces of yellow gingers root block is 8~15cm, then returns native covering, and the thickness for returning soil covering is 20
~30cm；Then sow seeds between two line spaces vetiver, Pinnate Beggarticks seed mixture, then rake；
(4) vetiver planted between yellow ginger and Pinnate Beggarticks are rooted out recovery with much money by 9 annual~October
Category, sows seeds again in 3~April of the coming year, and yellow ginger and vetiver, Pinnate Beggarticks root out recovery together after continuous 3 years
Heavy metal；
Further, described filter membrane is by politef, fluoride copolymers, poly three
Person in mass ratio 7:1:After 2 mixing, dioxy is combined to by 5-30% of molar percentage under conditions of 120~150 DEG C, vacuum
Change the porous membrane formed on titanium carrier.Filter membrane can prevent soil from entering jet chimney and blocking pipeline, so as to influence sterilization
Efficiency.
Further, the percent opening of described porous membrane is 70~85%, and aperture is 0.1~1 μm.
Further, described sterilizing liquid is Chinese honey locust, fructus ulmi, corter pseudolaricis, gemma agrimoninae, chaulmoogra in mass ratio 10:
8:5:3:After 8 mixing 1 is pressed by the extract that the concentration after supercritical carbon dioxide extracting is 3~5g/mL with water:2000 body
Product ratio is mixed to form admixing medical solutions, is then added into admixing medical solutions and the isometric pentachloronitrobenzene of extraction liquids is mixed to form
Sterilizing liquid, sterilization efficiency high, and soil will not be polluted.
Further, described release base manure is：By farm manure compost treatment 10~20 days under the high temperature conditions, Ran Houzi
To be applied fertilizer after outside line sterilization treatment by no 2000~3000kg of mu, fertilizer efficiency is high after compost treatment, and is handled by ultraviolet disinfection,
Secondary pollution will not be caused to soil.
Further, described microorganism mix bacterium agent is：Bacillus subtilis, P. myrsinacearum, tetramethrin degraded
After bacterium, pseudomonas putida, allethrin degradation bacteria, Autoinducer, Sphingobacterium multivorum mixed in equal amounts, add relative
In the agar nutrient solutions of 2~4 times of Mixed Microbes amount, the mix bacterium agent that is obtained after being cultivated 3~5 days at 25~40 DEG C.
Further, it is heavy to include Steam explosive machine, storage tank, air flow bed, steam boiler and extraction for the innocent treatment equipment
Shallow lake device, the top of the Steam explosive machine are provided with splicing room, and the middle part of Steam explosive machine is provided with steam explosion storehouse, and the bottom of Steam explosive machine is respectively equipped with
Steam inlet and discharge port, the steam inlet are connected to the steam boiler, and the discharge port is connected to the storage tank
Charging aperture, the top of storage tank are provided with air guide port, and bottom is provided with discharging opening, and the top of the air flow bed is provided with gas channel, institute
State gas channel by vacuum air pump with the air guide port to be connected, the bottom of air flow bed is provided with cooling chamber, in the cooling chamber
Side wall is provided with the cooling spray of annular array, and the bottom of cooling chamber is provided with discharge outlet, and the top of the extraction precipitation device is extraction
Area is taken, bottom is settling zone, and the upper left side of the extraction section connects the discharging opening and discharge outlet, the upper right side of extraction section respectively
Provided with dosing mouth, extraction section transverse axis center is provided with agitator, and left side is provided with slag-drip opening, and the slag-drip opening is connected to steam copper
Stove, screen pack and gate are sequentially provided with upper between extraction section and settling zone.
Further, the steam boiler includes steam copper, stove and drying chamber, and the steam copper is located at the stove
Top, the steam (vapor) outlet of steam copper are connected with the steam inlet, and the drying chamber is located at the side of stove, the drying chamber
It is connected with the slag-drip opening of the extraction section, when carrying out continuous batch processing, the plant treatment residue of last batch can be sent into and dried
Dry chamber is being burnt after being dried, that is, saving the energy can also heavy metal progress after-treatment.
Further, the method for work of innocent treatment equipment, including following steps：
(1) vetiver and Pinnate Beggarticks are cleaned up, institute is put into after soaking 10-30min using alkaline extraction liquid
State in splicing room；The Steam explosive machine steam inlet switch is opened, 5-12min, Zhi Houtong are kept under 3.5-4.5Mpa pressure
The discharge port is crossed to move to the vetiver after steam explosion and Pinnate Beggarticks in the storage tank；
(2) vacuum air pump pumps steam in storage tank to the gas channel, and the steam is again through described cold
But shower nozzle sprays cooling water temperature to 85-90 DEG C, obtains the liquid containing heavy metal, and the cooling water contains acid neutralizer,
The liquid containing heavy metal is emitted into the extraction section；Remaining solid-liquid in storage tank is also emitted into extraction section；
(3) heavy metal chelant is added by the dosing mouth, and 3-5min is sufficiently stirred using the agitator, opened
The gate, separation of solid and liquid is carried out by the screen pack, liquid, which enters in the settling zone, to be precipitated, finally a recovery huge sum of money
Category, solid residue are dried for standby into the drying chamber, and as the auxiliary fuel of the stove, stove combustion process produces
Lime-ash can further be passed through in the fluid bed and cooled down and subsequent treatment；Steam explosion can be by the steam of inside plant tissues point
Sub- instantaneous relase finishes, and internal steam work is converted into mechanical energy and acts on biomass histocyte interlayer, is advantageous to heavy metal
Ion oozes out, and treatment effeciency is high and avoids chemically treated secondary pollution problem.
Compared with prior art, beneficial effects of the present invention are embodied in：The present invention utilizes plant combined microorganism enrichment weight
Heavy metal in the agricultural land soil of metallic pollution, selected plant and microorganism all have the effect of good heavy metal accumulation,
And the microorganism selected has very strong heavy metal tolerance, the plant of selection grows vigorous, root to the strong adaptability of soil
System is flourishing, and drought-resistant ability is strong, and growth scope is wider, and cultivation is simpler, and administration fee is low, and once plantation can be benefited for many years, its economy,
Medical value is very high, and its follow-up economic use value and can avoids heavy metal from entering biological chain, accelerates soil remediation
Speed.At the same time, heavy metal processing is carried out to soil repairing plant using innocent treatment equipment, wherein, utilize Steam explosive machine
Internal steam work is converted into mechanical energy and act on biomass histocyte interlayer, be advantageous to oozing out for heavy metal ion, handle
Efficiency high and avoid chemically treated secondary pollution problem.Soil remediation method repairing effect of the invention is good, expense is low, is easy to
Management is with a wide range of applications with operating, not producing secondary pollution.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the innocent treatment equipment of the present invention.
Wherein, 1- Steam explosive machines, 11- splicings room, 12- steam explosions storehouse, 13- steam inlets, 14- discharge ports, 2- storage tanks,
21- air guide ports, 22- discharging openings, 3- air flow beds, 31- gas channels, 32- vacuum air pumps, 33- cooling chambers, 34- cooling sprays,
35- discharge outlet, 4- steam boilers, 41- steam coppers, 42- stoves, 43- drying chambers, 5- extraction precipitations device, 51- extraction sections, 52-
Settling zone, 53- dosing mouths, 54- agitators, 55- screen packs, 56- gates, 57- slag-drip openings.
Embodiment
Embodiment 1：The present embodiment provides a kind of method using plant combined microorganism remediation heavy-metal contaminated soil, repaiies
Compound method comprises the following steps：
(1) will be thin by earth culture after contaminated soil deep tillage 40cm, then in underground, 40cm buries the netted of a diameter of 30mm
Pipeline, pipeline are provided with 2mm passage per 10cm, and one layer of filter membrane is wrapped up in the outside of passage, wherein, filter membrane is by poly- four
Vinyl chloride, fluoride copolymers, poly three in mass ratio 7:1:After 2 mixing, 120 DEG C, it is true
Under conditions of sky the porous membrane formed on titania support is combined to using molar percentage as 5%.Filter membrane can prevent soil
Pipeline is blocked into jet chimney, so as to influence the efficiency of sterilization, the percent opening of porous membrane is 70%, and aperture is 0.1 μ
m.Then it is pressed and sealed with soil by ground mulching, and by the surrounding of resistant plastic cloth with resistant plastic cloth, is then led to from pipeline
Enter sterilizing liquid, wherein, sterilizing liquid is Chinese honey locust, fructus ulmi, corter pseudolaricis, gemma agrimoninae, chaulmoogra in mass ratio 10:8:5:3:
After 8 mixing 1 is pressed by the extract that the concentration after supercritical carbon dioxide extracting is 3g/mL with water:2000 volume ratio mixing
Admixing medical solutions are formed, is then added into admixing medical solutions and the isometric pentachloronitrobenzene of extraction liquids is mixed to form sterilization
Liquid, sterilization efficiency high, and soil will not be polluted, discharging base manure is：By farm manure under the high temperature conditions at compost
Reason 10 days, then applied fertilizer after ultraviolet disinfection processing by no mu 2000kg.Every mu per hour intake be 1 ton, handle 3h after stop
Only 1h, then proceed to handle, continuous processing 1 day；
(2) after sterilization processing, base manure is discharged by every mu of 50kg, then by microorganism mix bacterium agent and water in mass ratio
1:Sprayed after 5 mixing by every mu of 20kg, wherein, microorganism mix bacterium agent is：Bacillus subtilis, P. myrsinacearum, amine chrysanthemum
After ester degradation bacteria, pseudomonas putida, allethrin degradation bacteria, Autoinducer, Sphingobacterium multivorum mixed in equal amounts, add
Enter in the agar nutrient solution relative to 2 times of amounts of Mixed Microbes, the mix bacterium agent obtained after being cultivated 3 days at 25 DEG C.Then it is shallow to turn over 5cm
It is smooth afterwards, other processing are not done places 15 days；
(3) by field soil scarifying, then by 100cm line-spacing ditching, ditch depth 25cm, yellow ginger root block is then embedded to it
In, the spacing of adjacent two pieces of yellow gingers root block is 8cm, then returns native covering, and the thickness for returning soil covering is 20cm；Then two in the ranks
Sow seeds away between vetiver, Pinnate Beggarticks seed mixture, then rake；
(4) vetiver planted between yellow ginger and Pinnate Beggarticks are rooted out and reclaim heavy metal by annual September part,
March in the coming year sows seeds again, and yellow ginger and vetiver, Pinnate Beggarticks root out together after continuous 3 years, and by innoxious
Processing equipment reclaims heavy metal.
Embodiment 2：The present embodiment provides a kind of method using plant combined microorganism remediation heavy-metal contaminated soil, repaiies
Compound method comprises the following steps：
(1) will be thin by earth culture after contaminated soil deep tillage 40cm, then in underground, 40cm buries the netted of a diameter of 35mm
Pipeline, pipeline are provided with 2.5mm passage per 10cm, and one layer of filter membrane is wrapped up in the outside of passage, wherein, filter membrane is by gathering
Tetrachloro-ethylene, fluoride copolymers, poly three in mass ratio 7:1:2 mixing after, 135 DEG C,
Under conditions of vacuum the porous membrane formed on titania support is combined to using molar percentage as 20%.Filter membrane can prevent soil
Earth enters jet chimney and blocks pipeline, and so as to influence the efficiency of sterilization, the percent opening of porous membrane is 77.5%, and aperture is
0.55μm.Then it is pressed and sealed with resistant plastic cloth by ground mulching, and by the surrounding of resistant plastic cloth with soil, then from pipeline
In be passed through sterilizing liquid, wherein, sterilizing liquid be Chinese honey locust, fructus ulmi, corter pseudolaricis, gemma agrimoninae, chaulmoogra in mass ratio 10:8:
5:3:After 8 mixing 1 is pressed by the extract that the concentration after supercritical carbon dioxide extracting is 4g/mL with water:2000 volume ratio
Admixing medical solutions are mixed to form, is then added into admixing medical solutions and the isometric pentachloronitrobenzene of extraction liquids is mixed to form sterilizing
Thimerosal, sterilization efficiency high, and soil will not be polluted, discharging base manure is：By farm manure heap under the high temperature conditions
Fertilizer processing 15 days, then applied fertilizer after ultraviolet disinfection processing by no mu 2500kg.Every mu per hour intake be 1 ton, processing
Stop 1.5h after 3.5h, then proceed to handle, continuous processing 1.5 days；
(2) after sterilization processing, base manure is discharged by every mu of 55kg, then by microorganism mix bacterium agent and water in mass ratio
1:Sprayed after 5 mixing by every mu of 25kg, wherein, microorganism mix bacterium agent is：Bacillus subtilis, P. myrsinacearum, amine chrysanthemum
After ester degradation bacteria, pseudomonas putida, allethrin degradation bacteria, Autoinducer, Sphingobacterium multivorum mixed in equal amounts, add
Enter in the agar nutrient solution relative to 3 times of amounts of Mixed Microbes, the mix bacterium agent obtained after being cultivated 4 days at 32.5 DEG C.Then it is shallow to turn over
It is smooth after 6.5cm, other processing are not done places 22.5 days；
(3) by field soil scarifying, then by 115cm line-spacing ditching, ditch depth 30cm, yellow ginger root block is then embedded to it
In, the spacing of adjacent two pieces of yellow gingers root block is 11.5cm, then returns native covering, and the thickness for returning soil covering is 25cm；Then two
Sow seeds between line space vetiver, Pinnate Beggarticks seed mixture, then rake；
(4) vetiver planted between yellow ginger and Pinnate Beggarticks are rooted out and reclaim heavy metal by annual mid-September,
Sow seeds, yellow ginger and vetiver, Pinnate Beggarticks root out together after continuous 3 years, and pass through nothing again in mid-March in the coming year
Evilization processing equipment reclaims heavy metal；
Embodiment 3：The present embodiment provides a kind of method using plant combined microorganism remediation heavy-metal contaminated soil, repaiies
Compound method comprises the following steps：
(1) will be thin by earth culture after contaminated soil deep tillage 40cm, then in underground, 40cm buries the netted of a diameter of 40mm
Pipeline, pipeline are provided with 3mm passage per 10cm, and one layer of filter membrane is wrapped up in the outside of passage, wherein, filter membrane is by poly- four
Vinyl chloride, fluoride copolymers, poly three in mass ratio 7:1:After 2 mixing, 150 DEG C, it is true
Under conditions of sky the porous membrane formed on titania support is combined to using molar percentage as 30%.Filter membrane can prevent soil
Pipeline is blocked into jet chimney, so as to influence the efficiency of sterilization, the percent opening of porous membrane is 85%, and aperture is 1 μm.
Then it is pressed and sealed with soil by ground mulching, and by the surrounding of resistant plastic cloth with resistant plastic cloth, is then passed through from pipeline
Sterilizing liquid, wherein, sterilizing liquid is Chinese honey locust, fructus ulmi, corter pseudolaricis, gemma agrimoninae, chaulmoogra in mass ratio 10:8:5:3:8
After mixing 1 is pressed by the extract that the concentration after supercritical carbon dioxide extracting is 5g/mL with water:200 volume ratio mixing shape
Into admixing medical solutions, then added into admixing medical solutions and the isometric pentachloronitrobenzene of extraction liquids is mixed to form sterilization
Liquid, sterilization efficiency high, and soil will not be polluted, discharging base manure is：By farm manure under the high temperature conditions at compost
Reason 20 days, then applied fertilizer after ultraviolet disinfection processing by no mu 3000kg.Every mu per hour intake be 1 ton, handle 4h after stop
Only 2h, then proceed to handle, continuous processing 2 days；
(2) after sterilization processing, base manure is discharged by every mu of 60kg, then by microorganism mix bacterium agent and water in mass ratio
1:Sprayed after 5 mixing by every mu of 30kg, wherein, microorganism mix bacterium agent is：Bacillus subtilis, P. myrsinacearum, amine chrysanthemum
After ester degradation bacteria, pseudomonas putida, allethrin degradation bacteria, Autoinducer, Sphingobacterium multivorum mixed in equal amounts, add
Enter in the agar nutrient solution relative to 4 times of amounts of Mixed Microbes, the mix bacterium agent obtained after being cultivated 5 days at 40 DEG C.Then it is shallow to turn over 8cm
It is smooth afterwards, other processing are not done places 30 days；
(3) by field soil scarifying, then by 130cm line-spacing ditching, ditch depth 35cm, yellow ginger root block is then embedded to it
In, the spacing of adjacent two pieces of yellow gingers root block is 15cm, then returns native covering, and the thickness for returning soil covering is 30cm；Then in two rows
Sow seeds between spacing vetiver, Pinnate Beggarticks seed mixture, then rake；
(4) vetiver planted between yellow ginger and Pinnate Beggarticks are rooted out and reclaim heavy metal by annual October,
Sow seeds in April in the coming year, yellow ginger and vetiver, Pinnate Beggarticks root out together again after continuous 3 years, and by harmless
Change processing equipment recovery heavy metal.
As described in Figure 1, innocent treatment equipment used in embodiment 1 to embodiment 3 include Steam explosive machine 1, storage tank 2,
Air flow bed 3, steam boiler 4 and extraction precipitation device 5, the top of Steam explosive machine 1 are provided with splicing room 11, and the middle part of Steam explosive machine 1 is provided with
Steam explosion storehouse 12, the bottom of Steam explosive machine 1 are respectively equipped with steam inlet 13 and discharge port 14, and steam inlet 13 is connected to steam boiler
4, wherein, steam boiler 4 includes steam copper 41, stove 42 and drying chamber 43, and steam copper 41 is located at the top of stove 42, steam copper
41 steam (vapor) outlet is connected with steam inlet 13, and drying chamber 43 is located at the side of stove 42, drying chamber 43 and extraction section 51
Slag-drip opening 57 is connected, and when carrying out continuous batch processing, the plant treatment residue of last batch can be sent into drying chamber and be dried
Burnt afterwards, that is, saving the energy can also heavy metal progress after-treatment.Discharge port 14 is connected to the charging aperture of storage tank 2,
The top of storage tank 2 is provided with air guide port 21, and bottom is provided with discharging opening 22, and the top of air flow bed 3 is provided with gas channel 31, and air-flow leads to
Road 31 is connected by vacuum air pump 32 with air guide port 21, and the bottom of air flow bed 3 is provided with cooling chamber 33, and the upper side wall of cooling chamber 33 is set
There is the cooling spray 34 of annular array, the bottom of cooling chamber 3 is provided with discharge outlet 35, and the top of extraction precipitation device 5 is extraction section
51, bottom is settling zone 52, and the upper left side of extraction section 51 connects discharging opening 22 and discharge outlet 35, the upper right side of extraction section 51 respectively
Provided with dosing mouth 53, the transverse axis center of extraction section 51 is provided with agitator 54, between extraction section 51 and settling zone 52 under upper
It is sequentially provided with screen pack 55 and gate 56.
The method of work of innocent treatment equipment, including following steps：
(1) vetiver and Pinnate Beggarticks are cleaned up, splicing room is put into after soaking 20min using alkaline extraction liquid
It is interior；The steam inlet of Steam explosive machine 1 switch is opened, 10min is kept under 4Mpa pressure, afterwards by discharge port 14 by after steam explosion
Vetiver and Pinnate Beggarticks are moved in storage tank 2；
(2) steam that vacuum air pump 32 is pumped in storage tank 2 sprays through cooling spray 34 again to gas channel 31, steam
Cooling water temperature obtains the liquid containing heavy metal to 87 DEG C, and cooling water contains acid neutralizer, the liquid row containing heavy metal
Put to extraction section 51；Remaining solid-liquid in storage tank 2 is also emitted into extraction section 51；
(3) heavy metal chelant is added by dosing mouth 53, and 4min is sufficiently stirred using agitator 54, open gate
56, separation of solid and liquid is carried out by screen pack 55, liquid, which enters in settling zone 52, to be precipitated, and finally reclaims heavy metal, solid is residual
Slag is dried for standby into drying chamber 43, and as the auxiliary fuel of stove 42, lime-ash caused by the combustion process of stove 42 can enter
One step, which is passed through in fluid bed 3, to be cooled down and subsequent treatment；Steam explosion can be complete by the steam molecule instantaneous relase of inside plant tissues
Finish, internal steam work is converted into mechanical energy and act on biomass histocyte interlayer, be advantageous to oozing out for heavy metal ion, locate
Manage efficiency high and avoid chemically treated secondary pollution problem.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in previous embodiment, or equivalent substitution is carried out to which part technical characteristic；And
These modifications are replaced, and the essence of appropriate technical solution is departed from the spirit and model of technical scheme of the embodiment of the present invention
Enclose.
Claims (9)
- A kind of 1. method using plant combined microorganism remediation heavy-metal contaminated soil, it is characterised in that described reparation side Method comprises the following steps：(1) will be thin by earth culture after contaminated soil deep tillage 40cm, then in underground, 40cm buries the netted of a diameter of 30~40mm Pipeline, pipeline are provided with 2~3mm passage every 10cm, and the outside of passage wraps up one layer of filter membrane, then uses heat resistanceheat resistant Plastic cloth is pressed and sealed by ground mulching, and by the surrounding of resistant plastic cloth with soil, and sterilizing liquid is then passed through from pipeline, Every mu per hour intake be 1 ton, handle 3~4h after stop 1~2h, then proceed to handle, continuous processing 1~2 day；(2) after sterilization processing, base manure is discharged by every mu of 50~60kg, then by microorganism mix bacterium agent and water in mass ratio 1:Sprayed after 5 mixing by every mu of 20~30kg, then shallow smooth, placement 15~30 days after turning over 5~8cm；(3) by field soil scarifying, then by 100~130cm line-spacing ditching, 25~35cm of ditch depth, then by yellow ginger root block Embedment wherein, the spacing of adjacent two pieces of yellow gingers root block be 8~15cm, then returns native covering, return soil covering thickness be 20~ 30cm；Then sow seeds between two line spaces vetiver, Pinnate Beggarticks seed mixture, then rake；(4) vetiver planted between yellow ginger and Pinnate Beggarticks are rooted out and reclaim heavy metal by 9 annual~October, 3~April of the coming year sows seeds again, yellow ginger and vetiver, Pinnate Beggarticks roots out together after continuous 3 years, and pass through nothing Evilization processing equipment reclaims heavy metal.
- 2. a kind of method using plant combined microorganism remediation heavy-metal contaminated soil as claimed in claim 1, its feature It is, described filter membrane is by politef, fluoride copolymers, poly three in mass ratio 7: 1:After 2 mixing, shape on titania support is combined to by 5-30% of molar percentage under conditions of 120~150 DEG C, vacuum Into porous membrane.
- 3. a kind of method using plant combined microorganism remediation heavy-metal contaminated soil as claimed in claim 2, its feature It is, the percent opening of described porous membrane is 70~85%, and aperture is 0.1~1 μm.
- 4. a kind of method using plant combined microorganism remediation heavy-metal contaminated soil as claimed in claim 1, its feature It is, described sterilizing liquid is Chinese honey locust, fructus ulmi, corter pseudolaricis, gemma agrimoninae, chaulmoogra in mass ratio 10:8:5:3:After 8 mixing 1 is pressed by extract and water that the concentration after supercritical carbon dioxide extracting is 3~5g/mL:2000 volume ratio is mixed to form Admixing medical solutions, then added into admixing medical solutions and the isometric pentachloronitrobenzene of extraction liquids is mixed to form sterilizing liquid.
- 5. a kind of method using plant combined microorganism remediation heavy-metal contaminated soil as claimed in claim 1, its feature It is, described release base manure is：By farm manure compost treatment 10~20 days under the high temperature conditions, then ultraviolet disinfection is handled Applied fertilizer afterwards by no 2000~3000kg of mu.
- 6. a kind of method using plant combined microorganism remediation heavy-metal contaminated soil as claimed in claim 1, its feature It is, described release base manure is：By farm manure compost treatment 15~18 days under the high temperature conditions, then ultraviolet disinfection is handled Applied fertilizer afterwards by no 2500~2800kg of mu.
- 7. a kind of method using plant combined microorganism remediation heavy-metal contaminated soil as claimed in claim 1, its feature It is, described microorganism mix bacterium agent is：Bacillus subtilis, P. myrsinacearum, tetramethrin degradation bacteria, Pseudomonas putida After bacterium, allethrin degradation bacteria, Autoinducer, Sphingobacterium multivorum mixed in equal amounts, add relative to Mixed Microbes 2~4 In the agar nutrient solution of times amount, the mix bacterium agent that is obtained after being cultivated 3~5 days at 25~40 DEG C.
- 8. a kind of method using plant combined microorganism remediation heavy-metal contaminated soil as claimed in claim 1, its feature It is, it is heavy that the innocent treatment equipment includes Steam explosive machine (1), storage tank (2), air flow bed (3), steam boiler (4) and extraction Shallow lake device (5), the top of the Steam explosive machine (1) are provided with splicing room (11), and the middle part of Steam explosive machine (1) is provided with steam explosion storehouse (12), vapour The bottom of quick-fried machine (1) is respectively equipped with steam inlet (13) and discharge port (14), and the steam inlet (13) is connected to the steaming Boiler furnace (4), the discharge port (14) are connected to the charging aperture of the storage tank (2), and the top of storage tank (2) is provided with air guide port (21), bottom is provided with discharging opening (22), and the top of the air flow bed (3) is provided with gas channel (31), the gas channel (31) It is connected by vacuum air pump (32) with the air guide port (21), the bottom of air flow bed (3) is provided with cooling chamber (33), the cooling Room (33) upper side wall is provided with the cooling spray (34) of annular array, and the bottom of cooling chamber (3) is provided with discharge outlet (35), the extraction The top of settler (5) is extraction section (51), and bottom is settling zone (52), and the upper left side of the extraction section (51) connects respectively The discharging opening (22) and discharge outlet (35), the upper right side of extraction section (51) are provided with dosing mouth (53), in extraction section (51) transverse axis Heart position is provided with agitator (54), and left side is provided with slag-drip opening (57), and the slag-drip opening (57) is connected to steam boiler (4), the extraction Take and be sequentially provided with screen pack (55) and gate (56) under upper between area (51) and settling zone (52).
- 9. a kind of method using plant combined microorganism remediation heavy-metal contaminated soil as claimed in claim 8, its feature exist In the method for work of the innocent treatment equipment includes following steps：(1) vetiver and Pinnate Beggarticks are cleaned up, described connect is put into after soaking 10-30min using alkaline extraction liquid Expect in room (11)；The Steam explosive machine (1) steam inlet switch is opened, 5-12min is kept under 3.5-4.5Mpa pressure, afterwards The vetiver after steam explosion and Pinnate Beggarticks are moved in the storage tank (2) by the discharge port (14)；(2) steam that the vacuum air pump (32) is pumped in storage tank (2) passes through again to the gas channel (31), the steam The cooling spray (34) sprays cooling water temperature to 85-90 DEG C, obtains the liquid containing heavy metal, the cooling water contains acid Property neutralizer, the liquid containing heavy metal are emitted into the extraction section (51)；Remaining solid-liquid in storage tank (2) is also arranged Put to extraction section (51)；Heavy metal chelant is added by the dosing mouth (53), and 3-5min is sufficiently stirred using the agitator (54), is beaten The gate (56) is opened, separation of solid and liquid is carried out by the screen pack (55), liquid, which enters in the settling zone (52), to be sunk Form sediment, finally reclaim heavy metal, solid residue is dried for standby into the drying chamber (43), as the auxiliary of the stove (42) Combustion-supporting material, lime-ash caused by stove (42) combustion process can further be passed through in the fluid bed (3) and be cooled down and subsequently located Reason.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710747963.1A CN107552560B (en) | 2017-08-28 | 2017-08-28 | Method for restoring heavy metal contaminated soil by using plant and microorganism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710747963.1A CN107552560B (en) | 2017-08-28 | 2017-08-28 | Method for restoring heavy metal contaminated soil by using plant and microorganism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107552560A true CN107552560A (en) | 2018-01-09 |
| CN107552560B CN107552560B (en) | 2021-10-22 |
Family
ID=60977164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710747963.1A Active CN107552560B (en) | 2017-08-28 | 2017-08-28 | Method for restoring heavy metal contaminated soil by using plant and microorganism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107552560B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339841A (en) * | 2018-01-26 | 2018-07-31 | 共同科技开发有限公司 | One heavy metal species soil quick treatment device |
| CN109226253A (en) * | 2018-11-12 | 2019-01-18 | 崔维佳 | A kind of restorative procedure of heavy-metal contaminated soil |
| CN109454108A (en) * | 2018-11-28 | 2019-03-12 | 无锡飞述科技有限公司 | A kind of the microorganism remediation equipment and its restorative procedure of heavy-metal contaminated soil |
| CN110449451A (en) * | 2019-01-18 | 2019-11-15 | 湖南高岭环保科技有限公司 | A kind of prosthetic device and restorative procedure of mine soil arsenic pollution |
| CN110721994A (en) * | 2019-11-27 | 2020-01-24 | 宜昌石铭电子科技有限公司 | Remediation method for heavy metal contaminated soil |
| CN111282978A (en) * | 2020-02-11 | 2020-06-16 | 辽宁工程技术大学 | Soil organic pollutant purification treatment system |
| CN111906130A (en) * | 2020-06-28 | 2020-11-10 | 中国科学院广州能源研究所 | Soil pollution treatment method based on plant physiology and physics regulation |
| CN112808767A (en) * | 2020-12-30 | 2021-05-18 | 山东大学 | Method for repairing organic matter contaminated soil by cyclodextrin enhanced microorganisms |
| CN113210418A (en) * | 2021-03-18 | 2021-08-06 | 交大环境保护研究院(江苏)有限公司 | Method for repairing heavy metal pollution of mine soil by combining plant solid waste |
| CN115213218A (en) * | 2022-07-20 | 2022-10-21 | 苏州翊清环境科技有限公司 | Soil heavy metal stabilization method based on steam explosion technology |
| CN118341821A (en) * | 2024-04-11 | 2024-07-16 | 生态环境部南京环境科学研究所 | In-situ ecological treatment method for heavy metal contaminated soil |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4891320A (en) * | 1985-02-19 | 1990-01-02 | Utah State University Foundation | Methods for the degradation of environmentally persistent organic compounds using shite rot fungi |
| CN101181715A (en) * | 2007-10-26 | 2008-05-21 | 上海大学 | Heavy-metal polluted soil united directional restoration method by using plant-microorganism |
| CN101786097A (en) * | 2010-03-03 | 2010-07-28 | 彭国平 | Phytoremediation technology for heavy metal contaminated soil |
| CN102755990A (en) * | 2012-08-01 | 2012-10-31 | 湖南农业大学 | Method of repairing heavy metal contaminated soil by utilizing turmeric |
| CN105945043A (en) * | 2016-07-10 | 2016-09-21 | 中山市绿浪助剂有限公司 | Method for rapidly treating heavy metal pollution of soil |
| CN105945047A (en) * | 2016-07-10 | 2016-09-21 | 中山市绿浪助剂有限公司 | Comprehensive remediation method for soil polluted by heavy metals and application of comprehensive remediation method |
| CN106180168A (en) * | 2016-09-22 | 2016-12-07 | 北京新源环境有限公司 | The method that plant bionic repairs place soil with chemical leaching, microbial association |
| CN106269849A (en) * | 2016-09-22 | 2017-01-04 | 北京新源环境有限公司 | A kind of plant bionic and the method for plant combined repairing polluted soil |
| CN106583430A (en) * | 2016-12-09 | 2017-04-26 | 北京高能时代环境技术股份有限公司 | Method for repairing arsenium-polluted farmland soil through microorganisms and plants in combined manner |
-
2017
- 2017-08-28 CN CN201710747963.1A patent/CN107552560B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4891320A (en) * | 1985-02-19 | 1990-01-02 | Utah State University Foundation | Methods for the degradation of environmentally persistent organic compounds using shite rot fungi |
| CN101181715A (en) * | 2007-10-26 | 2008-05-21 | 上海大学 | Heavy-metal polluted soil united directional restoration method by using plant-microorganism |
| CN101786097A (en) * | 2010-03-03 | 2010-07-28 | 彭国平 | Phytoremediation technology for heavy metal contaminated soil |
| CN102755990A (en) * | 2012-08-01 | 2012-10-31 | 湖南农业大学 | Method of repairing heavy metal contaminated soil by utilizing turmeric |
| CN105945043A (en) * | 2016-07-10 | 2016-09-21 | 中山市绿浪助剂有限公司 | Method for rapidly treating heavy metal pollution of soil |
| CN105945047A (en) * | 2016-07-10 | 2016-09-21 | 中山市绿浪助剂有限公司 | Comprehensive remediation method for soil polluted by heavy metals and application of comprehensive remediation method |
| CN106180168A (en) * | 2016-09-22 | 2016-12-07 | 北京新源环境有限公司 | The method that plant bionic repairs place soil with chemical leaching, microbial association |
| CN106269849A (en) * | 2016-09-22 | 2017-01-04 | 北京新源环境有限公司 | A kind of plant bionic and the method for plant combined repairing polluted soil |
| CN106583430A (en) * | 2016-12-09 | 2017-04-26 | 北京高能时代环境技术股份有限公司 | Method for repairing arsenium-polluted farmland soil through microorganisms and plants in combined manner |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339841A (en) * | 2018-01-26 | 2018-07-31 | 共同科技开发有限公司 | One heavy metal species soil quick treatment device |
| CN109226253A (en) * | 2018-11-12 | 2019-01-18 | 崔维佳 | A kind of restorative procedure of heavy-metal contaminated soil |
| CN109454108A (en) * | 2018-11-28 | 2019-03-12 | 无锡飞述科技有限公司 | A kind of the microorganism remediation equipment and its restorative procedure of heavy-metal contaminated soil |
| CN110449451A (en) * | 2019-01-18 | 2019-11-15 | 湖南高岭环保科技有限公司 | A kind of prosthetic device and restorative procedure of mine soil arsenic pollution |
| CN110721994A (en) * | 2019-11-27 | 2020-01-24 | 宜昌石铭电子科技有限公司 | Remediation method for heavy metal contaminated soil |
| CN111282978A (en) * | 2020-02-11 | 2020-06-16 | 辽宁工程技术大学 | Soil organic pollutant purification treatment system |
| CN111906130A (en) * | 2020-06-28 | 2020-11-10 | 中国科学院广州能源研究所 | Soil pollution treatment method based on plant physiology and physics regulation |
| CN112808767A (en) * | 2020-12-30 | 2021-05-18 | 山东大学 | Method for repairing organic matter contaminated soil by cyclodextrin enhanced microorganisms |
| CN113210418A (en) * | 2021-03-18 | 2021-08-06 | 交大环境保护研究院(江苏)有限公司 | Method for repairing heavy metal pollution of mine soil by combining plant solid waste |
| CN115213218A (en) * | 2022-07-20 | 2022-10-21 | 苏州翊清环境科技有限公司 | Soil heavy metal stabilization method based on steam explosion technology |
| CN118341821A (en) * | 2024-04-11 | 2024-07-16 | 生态环境部南京环境科学研究所 | In-situ ecological treatment method for heavy metal contaminated soil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107552560B (en) | 2021-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107552560A (en) | A kind of method using plant combined microorganism remediation heavy-metal contaminated soil | |
| CN104396616B (en) | Water cycling cultivating device for fish and vegetables commensalism and water cycling cultivating method | |
| CN105598144A (en) | Restoration method of polluted soil | |
| CN105521991B (en) | A kind of dry and wet regulation and control are with reference to electric power and the cadmium pollution paddy soil combined remediation method of enriching plant | |
| CN1846474A (en) | High temperature water soil-sterilizing method and high temperature water soil-sterilizing machine | |
| CN107987838A (en) | A kind of organic formulations of prevention and control crucifer club root and its application | |
| CN109264948A (en) | Oil sludge harmless treatment plant and method | |
| CN105917779B (en) | The method that reed is planted in side slope | |
| CN108034620A (en) | One plant of bacillus megaterium bacterial strain, peanut drop cadmium agent and its application | |
| CN107867881A (en) | A kind of automation installation for fermenting with solar power generation function | |
| CN107457256A (en) | A kind of restorative procedure of oil-polluted soils | |
| CN108220134B (en) | Ecological farm straw cyclic utilization fermentation biogas system | |
| CN207102187U (en) | A kind of ecological agriculture fertilizer production exhaust gas processing device | |
| CN109731908A (en) | A method of light moderate heavy-metal contaminated soil is repaired using artemisia selengensis | |
| US20090282976A1 (en) | Methane gas disposal and use via subsurface drip irrigation techniques | |
| CN106818362B (en) | Barren green desert pattern of farming and in desert planting plants method | |
| CN107552550A (en) | A kind of method that cadmium, lead-contaminated soil are repaired using root exudates fortification of plants | |
| CN209376359U (en) | A kind of micro-nano bubble oxygenation irrigation rig | |
| CN101493262A (en) | Coal-firing agricultural soil hot water sterilization machine | |
| CN104492806B (en) | A kind of preparation method of the compound eluent of chromium-polluted soil | |
| CN206188678U (en) | Fertile production system of charcoal base manure and liquid | |
| CN103155829B (en) | Earthing pipeline type steam sterilization method and sterilization device thereof | |
| CN106068736B (en) | A kind of high value Chinese herbal medicine plants the ecological restoring method for soil of laying idle | |
| CN102515901B (en) | Method for utilizing sludge from municipal sewage treatment plant as forestry soil matrix | |
| CN108728386A (en) | A kind of preparation method of glyphosate solid-state degradation bacterial agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |