CN105419809A - Preparation method of heavy metal contaminated soil biomass repair agent - Google Patents
Preparation method of heavy metal contaminated soil biomass repair agent Download PDFInfo
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- CN105419809A CN105419809A CN201510722136.8A CN201510722136A CN105419809A CN 105419809 A CN105419809 A CN 105419809A CN 201510722136 A CN201510722136 A CN 201510722136A CN 105419809 A CN105419809 A CN 105419809A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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Abstract
The present invention relates to a preparation method of a heavy metal contaminated soil biomass repair agent, and belongs to the field of soil repair agent preparation. The method comprises the following steps: using fresh bovine bone as a raw material; firstly soaking the bovine bone with hot water to degrease, then soaking with acid for degumming; cladding with slurry and inserting into a resistance box to produce bovine bone carbon powder after calcining and grinding; culturing earthworms by using wastepaper deinking sludge; using metabolism of the earthworms to treat the sludge and prepare biomass sludge powder; mixing the biomass sludge powder, the bovine bone carbon powder and quicklime in a certain proportion, using flour and albumen as a crosslinking agent to be mixed and dried; then crushing and passing through a sieve to obtain the heavy metal contaminated soil biomass repair agent. The heavy metal contaminated soil biomass repair agent prepared by the present invention is prepared from natural materials, has a high degradation rate for heavy metal ions in soil, and is biodegradable, so that secondary contamination cannot be caused.
Description
Technical field
The present invention relates to a kind of preparation method of heavy-metal contaminated soil biomass renovation agent, belong to soil-repairing agent preparation field.
Background technology
The every annual meeting of China's paper industry produces millions of tons deinking mud, complicated and the enormous amount of such sludge components, belong to the Hazardous wastes of national regulation, high risks can be produced to ecotope, in the urgent need to carrying out scientific and rational process and recycling to it.
Soil, as the natural resources that the mankind depend on for existence, is also the place that each key element of environment acutely acts on simultaneously, not only for growth and development of plants provides strong mechanical support, and provides the fertility key elements such as water, fertilizer, gas, heat for growth and development of plants.But developing rapidly in recent years along with society's industry, human production activity's produced pollution thing is discharged in environment by all means in large quantities, and these pollutents finally can be entered in the middle of soil by modes such as dirty filling, sedimentation, precipitation wash away.When the accumulation volume of these pollutents in soil exceedes the environmental capacity of soil, the weak of function of soil ecosystem will be caused, and by the transmission of food chain, threaten the vegeto-animal existence of soil, we are referred to as soil pollution.Wherein, heavy metal is exactly one of most important pollution substance in soil pollution.
Now, heavy metal pollution of soil has become a global more serious environmental problem.From the correlation study of the Ministry of Agriculture, China's sewage irrigation district total area is approximately 1,400,000 hectares, and the land area being subjected to heavy metal contamination accounts for the ratio of the pollution total area up to 64.8%, ratio wherein shared by intermediate pollution area has 9.7%, severe contamination area accounts for 8.4%, is wherein maximum with the contaminated area of heavy metal element Cd and Hg again.
Summary of the invention
The technical problem that the present invention mainly solves: for current remediation of heavy metal-contaminated soil mainly with Soil leaching, the modes such as electro reclamation are carried out, there is operating process quantities large, rehabilitation cost is high, and normal soil renovation agent is many by chemosynthesis, not biodegradable defect, provide a kind of preparation method of heavy-metal contaminated soil biomass renovation agent, the method with fresh ox bone for raw material, first use hot water extraction's degreasing, come unstuck with acid soak again, obtained ox bone carbon powder after putting into resistance box calcining and grinding with mud is coated afterwards, use deinking culturing sludge earthworm again, earthworm metabolism lignin-sludge is utilized to prepare biomass sludge powder, after itself and ox bone powdered carbon and unslaked lime are mixed by a certain percentage, with flour, egg white pulverizes and sieves after making linking agent combination drying and obtains a kind of heavy-metal contaminated soil biomass renovation agent.The heavy-metal contaminated soil biomass renovation agent that the present invention obtains is obtained by natural material, high, biodegradable to heavy metal in soil ionic degradation rate, can not cause secondary pollution.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
(1) get the fresh ox bone after rejecting meat, put into iron pan and add distilled water, make distilled water submergence ox bone, be heated to 100 ~ 110 DEG C afterwards, boil degreasing 5 ~ 10min;
(2) 5L beaker put into by the ox bone after taking out degreasing, adds the dilution heat of sulfuric acid that 3 ~ 4L mass concentration is 10%, moves into water-bath afterwards, be warming up to 90 ~ 100 DEG C and boil the 20 ~ 30min that comes unstuck;
(3) the ox bone mud slurry uniform after degreasing degumming process is enveloped, put into chamber type electric resistance furnace, raised temperature to 450 ~ 550 DEG C, high-temperature calcination 2 ~ 3h carbonizes, naturally cool to after room temperature until it afterwards, knock with hand hammer and the bone black surface soil layer that hardens is dropped, with deionized water rinsing bone black surface 3 ~ 5 times, put into mortar after natural air drying to pulverize, obtained ox bone carbon powder;
(4) the deinking mud in 500 ~ 600g paper mill is taken, pour in flowerpot, add 10 ~ 20g rice husk and 5 ~ 10g soybean stalk, stack 5 ~ 7 days under 25 ~ 30 DEG C of conditions, backward flowerpot in throw in 20 ~ 30g earthworm, above mud, cover the thick wheat bran of 2 ~ 3cm, and with watering can, humidification is carried out to mud and keep its relative humidity to be 60 ~ 70%, be placed in warmhouse booth and cultivate 15 ~ 20 days;
(5) use strong illumination Sludge Surface, successively remove the earthworm in mud, afterwards the mud cultivating earthworm is put into baking oven, at 60 ~ 70 DEG C, dry 1 ~ 2h, put into shredder and be ground into powder, obtain earthworm biomass sludge powder;
(6) count by weight, take 80 ~ 85 parts of above-mentioned obtained earthworm powdered biomass, 10 ~ 12 parts of ox bone carbon powders and 3 ~ 10 parts of unslaked limes and put into hot Banbury, add 10 ~ 15g flour, 20 ~ 30mL peach gum and 10 ~ 20mL Ovum Gallus domesticus album, 120 ~ 130 DEG C are warming up to after stirring by stirring rod, discharging after high temperature banburying 1 ~ 2h, pulverize with putting into micronizer mill after Vacuumdrier drying, after 20 ~ 30 mesh standard sieves, obtain a kind of particulate state heavy-metal contaminated soil biomass renovation agent.
Embody rule method of the present invention: first digged uniformly by contaminated by heavy metals soil raker, heavy-metal contaminated soil biomass renovation agent the present invention obtained afterwards is with 300 ~ 400g/m
2dosage shed in the soil after scarifying, then use sprinkler tap water, keep ground moistening degree between 40 ~ 50%, through the degradation treatment of 3 ~ 5 months, detect and find that the content of Cd and Hg in soil have dropped more than 80%.
The invention has the beneficial effects as follows: the heavy-metal contaminated soil biomass renovation agent that the present invention obtains is prepared by natural material, reach more than 80%, and itself is biodegradable, can not causes secondary pollution to environment to heavy metal in soil ionic degradation rate.
Embodiment
Get the fresh ox bone after rejecting meat, put into iron pan and add distilled water, make distilled water submergence ox bone, be heated to 100 ~ 110 DEG C afterwards, boil degreasing 5 ~ 10min; 5L beaker put into by the ox bone taken out after degreasing, adds the dilution heat of sulfuric acid that 3 ~ 4L mass concentration is 10%, moves into water-bath afterwards, be warming up to 90 ~ 100 DEG C and boil the 20 ~ 30min that comes unstuck; Ox bone mud slurry uniform after degreasing degumming process is enveloped, put into chamber type electric resistance furnace, raised temperature to 450 ~ 550 DEG C, high-temperature calcination 2 ~ 3h carbonizes, naturally cool to after room temperature until it afterwards, knock with hand hammer and the bone black surface soil layer that hardens is dropped, with deionized water rinsing bone black surface 3 ~ 5 times, put into mortar after natural air drying to pulverize, obtained ox bone carbon powder; Take the deinking mud in 500 ~ 600g paper mill, pour in flowerpot, add 10 ~ 20g rice husk and 5 ~ 10g soybean stalk, stack 5 ~ 7 days under 25 ~ 30 DEG C of conditions, backward flowerpot in throw in 20 ~ 30g earthworm, above mud, cover the thick wheat bran of 2 ~ 3cm, and with watering can, humidification is carried out to mud and keep its relative humidity to be 60 ~ 70%, be placed in warmhouse booth and cultivate 15 ~ 20 days; Use strong illumination Sludge Surface, successively remove the earthworm in mud, afterwards the mud cultivating earthworm is put into baking oven, at 60 ~ 70 DEG C, dry 1 ~ 2h, put into shredder and be ground into powder, obtain earthworm biomass sludge powder; Count by weight, take 80 ~ 85 parts of above-mentioned obtained earthworm powdered biomass, 10 ~ 12 parts of ox bone carbon powders and 3 ~ 10 parts of unslaked limes and put into hot Banbury, add 10 ~ 15g flour, 20 ~ 30mL peach gum and 10 ~ 20mL Ovum Gallus domesticus album, 120 ~ 130 DEG C are warming up to after stirring by stirring rod, discharging after high temperature banburying 1 ~ 2h, pulverize with putting into micronizer mill after Vacuumdrier drying, after 20 ~ 30 mesh standard sieves, obtain a kind of particulate state heavy-metal contaminated soil biomass renovation agent.
Example 1
Get the fresh ox bone after rejecting meat, put into iron pan and add distilled water, make distilled water submergence ox bone, be heated to 100 DEG C afterwards, boil degreasing 5min; 5L beaker put into by the ox bone taken out after degreasing, adds the dilution heat of sulfuric acid that 3L mass concentration is 10%, moves into water-bath afterwards, be warming up to 90 DEG C and boil the 20min that comes unstuck; Ox bone mud slurry uniform after degreasing degumming process is enveloped, put into chamber type electric resistance furnace, raised temperature to 450 DEG C, high-temperature calcination 2h carbonizes, naturally cool to after room temperature until it afterwards, knock with hand hammer and the bone black surface soil layer that hardens is dropped, with deionized water rinsing bone black surface 3 times, put into mortar after natural air drying to pulverize, obtained ox bone carbon powder; Take the deinking mud in 500g paper mill, pour in flowerpot, add 10g rice husk and 5g soybean stalk, stack 5 days under 25 DEG C of conditions, backward flowerpot in throw in 20g earthworm, above mud, cover the wheat bran that 2cm is thick, and with watering can, humidification is carried out to mud and keep its relative humidity to be 60%, be placed in warmhouse booth and cultivate 15 days; Use strong illumination Sludge Surface, successively remove the earthworm in mud, afterwards the mud cultivating earthworm is put into baking oven, at 60 DEG C, dry 1h, put into shredder and be ground into powder, obtain earthworm biomass sludge powder; Count by weight, take 80 parts of above-mentioned obtained earthworm powdered biomass, 10 parts of ox bone carbon powders and 3 parts of unslaked limes and put into hot Banbury, add 10g flour, 20mL peach gum and 10mL Ovum Gallus domesticus album, 120 DEG C are warming up to after stirring by stirring rod, discharging after high temperature banburying 1h, pulverizing with putting into micronizer mill after Vacuumdrier drying, after 20 mesh standard sieves, obtaining a kind of particulate state heavy-metal contaminated soil biomass renovation agent.
Embody rule method of the present invention: first digged uniformly by contaminated by heavy metals soil raker, heavy-metal contaminated soil biomass renovation agent the present invention obtained afterwards is with 300g/m
2dosage shed in the soil after scarifying, then use sprinkler tap water, keep ground moistening degree between 40%, through the degradation treatment of 3 months, detect and find that the content of Cd and Hg in soil have dropped 83%.
Example 2
Get the fresh ox bone after rejecting meat, put into iron pan and add distilled water, make distilled water submergence ox bone, be heated to 105 DEG C afterwards, boil degreasing 8min; 5L beaker put into by the ox bone taken out after degreasing, adds the dilution heat of sulfuric acid that 3L mass concentration is 10%, moves into water-bath afterwards, be warming up to 95 DEG C and boil the 25min that comes unstuck; Ox bone mud slurry uniform after degreasing degumming process is enveloped, put into chamber type electric resistance furnace, raised temperature to 500 DEG C, high-temperature calcination 2h carbonizes, naturally cool to after room temperature until it afterwards, knock with hand hammer and the bone black surface soil layer that hardens is dropped, with deionized water rinsing bone black surface 4 times, put into mortar after natural air drying to pulverize, obtained ox bone carbon powder; Take the deinking mud in 550g paper mill, pour in flowerpot, add 15g rice husk and 8g soybean stalk, stack 6 days under 28 DEG C of conditions, backward flowerpot in throw in 25g earthworm, above mud, cover the wheat bran that 2cm is thick, and with watering can, humidification is carried out to mud and keep its relative humidity to be 65%, be placed in warmhouse booth and cultivate 18 days; Use strong illumination Sludge Surface, successively remove the earthworm in mud, afterwards the mud cultivating earthworm is put into baking oven, at 65 DEG C, dry 1h, put into shredder and be ground into powder, obtain earthworm biomass sludge powder; Count by weight, take 83 parts of above-mentioned obtained earthworm powdered biomass, 11 parts of ox bone carbon powders and 6 parts of unslaked limes and put into hot Banbury, add 13g flour, 25mL peach gum and 15mL Ovum Gallus domesticus album, 125 DEG C are warming up to after stirring by stirring rod, discharging after high temperature banburying 1h, pulverizing with putting into micronizer mill after Vacuumdrier drying, after 25 mesh standard sieves, obtaining a kind of particulate state heavy-metal contaminated soil biomass renovation agent.
Embody rule method of the present invention: first digged uniformly by contaminated by heavy metals soil raker, heavy-metal contaminated soil biomass renovation agent the present invention obtained afterwards is with 350g/m
2dosage shed in the soil after scarifying, then use sprinkler tap water, keep ground moistening degree between 45%, through the degradation treatment of 4 months, detect and find that the content of Cd and Hg in soil have dropped 85%.
Example 3
Get the fresh ox bone after rejecting meat, put into iron pan and add distilled water, make distilled water submergence ox bone, be heated to 110 DEG C afterwards, boil degreasing 10min; 5L beaker put into by the ox bone taken out after degreasing, adds the dilution heat of sulfuric acid that 4L mass concentration is 10%, moves into water-bath afterwards, be warming up to 100 DEG C and boil the 30min that comes unstuck; Ox bone mud slurry uniform after degreasing degumming process is enveloped, put into chamber type electric resistance furnace, raised temperature to 550 DEG C, high-temperature calcination 3h carbonizes, naturally cool to after room temperature until it afterwards, knock with hand hammer and the bone black surface soil layer that hardens is dropped, with deionized water rinsing bone black surface 5 times, put into mortar after natural air drying to pulverize, obtained ox bone carbon powder; Take the deinking mud in 600g paper mill, pour in flowerpot, add 20g rice husk and 10g soybean stalk, stack 7 days under 30 DEG C of conditions, backward flowerpot in throw in 30g earthworm, above mud, cover the wheat bran that 3cm is thick, and with watering can, humidification is carried out to mud and keep its relative humidity to be 70%, be placed in warmhouse booth and cultivate 20 days; Use strong illumination Sludge Surface, successively remove the earthworm in mud, afterwards the mud cultivating earthworm is put into baking oven, at 70 DEG C, dry 2h, put into shredder and be ground into powder, obtain earthworm biomass sludge powder; Count by weight, take 85 parts of above-mentioned obtained earthworm powdered biomass, 12 parts of ox bone carbon powders and 10 parts of unslaked limes and put into hot Banbury, add 15g flour, 30mL peach gum and 20mL Ovum Gallus domesticus album, 130 DEG C are warming up to after stirring by stirring rod, discharging after high temperature banburying 2h, pulverizing with putting into micronizer mill after Vacuumdrier drying, after 30 mesh standard sieves, obtaining a kind of particulate state heavy-metal contaminated soil biomass renovation agent.
Embody rule method of the present invention: first digged uniformly by contaminated by heavy metals soil raker, heavy-metal contaminated soil biomass renovation agent the present invention obtained afterwards is with 400g/m
2dosage shed in the soil after scarifying, then use sprinkler tap water, keep ground moistening degree between 50%, through the degradation treatment of 5 months, detect and find that the content of Cd and Hg in soil have dropped 88%.
Claims (1)
1. a preparation method for heavy-metal contaminated soil biomass renovation agent, is characterized in that concrete preparation process is:
(1) get the fresh ox bone after rejecting meat, put into iron pan and add distilled water, make distilled water submergence ox bone, be heated to 100 ~ 110 DEG C afterwards, boil degreasing 5 ~ 10min;
(2) 5L beaker put into by the ox bone after taking out degreasing, adds the dilution heat of sulfuric acid that 3 ~ 4L mass concentration is 10%, moves into water-bath afterwards, be warming up to 90 ~ 100 DEG C and boil the 20 ~ 30min that comes unstuck;
(3) the ox bone mud slurry uniform after degreasing degumming process is enveloped, put into chamber type electric resistance furnace, raised temperature to 450 ~ 550 DEG C, high-temperature calcination 2 ~ 3h carbonizes, naturally cool to after room temperature until it afterwards, knock with hand hammer and the bone black surface soil layer that hardens is dropped, with deionized water rinsing bone black surface 3 ~ 5 times, put into mortar after natural air drying to pulverize, obtained ox bone carbon powder;
(4) the deinking mud in 500 ~ 600g paper mill is taken, pour in flowerpot, add 10 ~ 20g rice husk and 5 ~ 10g soybean stalk, stack 5 ~ 7 days under 25 ~ 30 DEG C of conditions, backward flowerpot in throw in 20 ~ 30g earthworm, above mud, cover the thick wheat bran of 2 ~ 3cm, and with watering can, humidification is carried out to mud and keep its relative humidity to be 60 ~ 70%, be placed in warmhouse booth and cultivate 15 ~ 20 days;
(5) use strong illumination Sludge Surface, successively remove the earthworm in mud, afterwards the mud cultivating earthworm is put into baking oven, at 60 ~ 70 DEG C, dry 1 ~ 2h, put into shredder and be ground into powder, obtain earthworm biomass sludge powder;
(6) count by weight, take 80 ~ 85 parts of above-mentioned obtained earthworm powdered biomass, 10 ~ 12 parts of ox bone carbon powders and 3 ~ 10 parts of unslaked limes and put into hot Banbury, add 10 ~ 15g flour, 20 ~ 30mL peach gum and 10 ~ 20mL Ovum Gallus domesticus album, 120 ~ 130 DEG C are warming up to after stirring by stirring rod, discharging after high temperature banburying 1 ~ 2h, pulverize with putting into micronizer mill after Vacuumdrier drying, after 20 ~ 30 mesh standard sieves, obtain a kind of particulate state heavy-metal contaminated soil biomass renovation agent.
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Cited By (6)
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| CN106147920A (en) * | 2016-08-25 | 2016-11-23 | 仇颖超 | A kind of preparation method of composite biomass fuel |
| CN106675566A (en) * | 2016-11-22 | 2017-05-17 | 唐林元 | Method for preparing multifunctional soil conditioning agent through Chinese yam pyrolysis |
| CN106753387A (en) * | 2016-11-11 | 2017-05-31 | 南京农业大学 | A kind of rich phosphorus biomass carbon for suppressing crop absorption lead cadmium and preparation method thereof |
| CN106978184A (en) * | 2017-04-14 | 2017-07-25 | 东南大学 | Curing agent and methods for making and using same for Compound Heavy Metals soil |
| CN107089698A (en) * | 2017-04-20 | 2017-08-25 | 常州市鼎日环保科技有限公司 | A kind of preparation method of loading type iron oxide groundwater remediation agent |
| CN108821922A (en) * | 2018-08-29 | 2018-11-16 | 佛山市森昂生物科技有限公司 | A kind of preparation method of stable type bio-feritlizer |
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| CN106147920A (en) * | 2016-08-25 | 2016-11-23 | 仇颖超 | A kind of preparation method of composite biomass fuel |
| CN106753387A (en) * | 2016-11-11 | 2017-05-31 | 南京农业大学 | A kind of rich phosphorus biomass carbon for suppressing crop absorption lead cadmium and preparation method thereof |
| CN106675566A (en) * | 2016-11-22 | 2017-05-17 | 唐林元 | Method for preparing multifunctional soil conditioning agent through Chinese yam pyrolysis |
| CN106978184A (en) * | 2017-04-14 | 2017-07-25 | 东南大学 | Curing agent and methods for making and using same for Compound Heavy Metals soil |
| CN106978184B (en) * | 2017-04-14 | 2020-09-11 | 东南大学 | Curing agent for composite heavy metal polluted soil and preparation and application methods thereof |
| CN107089698A (en) * | 2017-04-20 | 2017-08-25 | 常州市鼎日环保科技有限公司 | A kind of preparation method of loading type iron oxide groundwater remediation agent |
| CN108821922A (en) * | 2018-08-29 | 2018-11-16 | 佛山市森昂生物科技有限公司 | A kind of preparation method of stable type bio-feritlizer |
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Application publication date: 20160323 |