CN108865162A - Efficiently remove the compound formulation of removing heavy metals - Google Patents
Efficiently remove the compound formulation of removing heavy metals Download PDFInfo
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- CN108865162A CN108865162A CN201810880069.6A CN201810880069A CN108865162A CN 108865162 A CN108865162 A CN 108865162A CN 201810880069 A CN201810880069 A CN 201810880069A CN 108865162 A CN108865162 A CN 108865162A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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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
- C09K2101/00—Agricultural use
Abstract
The invention discloses a kind of compound formulations for efficiently removing removing heavy metals, including wheat stalk, cow dung, bacteria residue, gamma-polyglutamic acid, gelatin, polypropylene amine, polyepoxy sodium succinate, bagasse, glutaraldehyde, carboxymethyl crosslinked starch, Lignitic Humic Acid, biosurfactant, flyash modified orange peel, wooden vinegar, active carbon, aminodithioformic acid chitosan；Pass through the synergy between each component, directly and heavy metal lead, chemistry occurs for cadmium and nitrogen ion, removing heavy metals are removed in the collaboration of the various ways such as physical absorption, available heavy metal content can be reduced, slow down Nitrogen releasing, improve nitrogen utilization efficiency, reduce the form that heavy metal in soil activity is strong and bioavailability is strong, heavy metal is prevented to be transformed into plant from soil mobility, it prevents the biological concentration of heavy metal and amplifies and mitigate Cadmium accumulation in the plant being grown in contaminated soil, soil can be conserved, in addition also there is biological degradability, secondary pollution will not be caused to soil.
Description
Technical field
The present invention relates to soil remediation, in particular to a kind of compound formulation for efficiently removing removing heavy metals.
Background technique
Soil is the most active ring layer of earth surface system, is the foundation stone that the mankind depend on for existence and development, is to ensure the mankind
The important material base of food and ecological environment security.A huge sum of money with the modernization of industrial development and agricultural production, in soil
Belong to pollution and has become one of the main problem for endangering global environment quality.Heavy metal element is a kind of potential pollution
Object is difficult by soil microbial degradation, once entering in soil, administers very difficult.Heavy metal pollution of soil is main
From industrial production, agricultural production and communications and transportation.They not only result in the decline of soil vitality and make grain drop in production, and
And in plant and power cylinder accumulation and food chain can be entered, endanger human health.More seriously, these pollutions have
The features such as chronicity, concealment and irreversibility.2014《National Soil Pollution Investigation bulletin》And 2015《China ploughs
The report of ground GEOCHEMICAL SURVEY》Investigation result shows, 8% or more agricultural land soil by different degrees of heavy metal pollution, and
The removal recovery technique that is effectively peeled off of heavy metal in soil is always a global technical problem.A domestic and international soil huge sum of money at present
Belonging to recovery technique is mainly showering, stabilization processes and heat treatment etc..Soil heterotopic rehabilitation cost is high, at Soil Thermal
It manages, the ecological functions that chemical leaching and stabilization technology cause soil to lose this tool, the plant disposition of phytoremediation for soil technology
Etc. problems restrict the reparation process of heavy-metal contaminated soil.Above-mentioned technology is undoubtedly " palliative treatment " of soil remediation,
The reason of why taking these technologies is that heavy metal in soil permanently removes the technical bottleneck for being soil remediation and needs are dashed forward
Broken problem.Economically feasible, technically reliable, the heavy metal for not influencing grain-production, not destroying farmland quality permanently remove soil
Based technique for in-situ remediation is the urgent need of government, farmer and general public.
Summary of the invention
In view of this, can be repaired various the purpose of the present invention is to provide a kind of compound formulation for efficiently removing removing heavy metals
Heavy metal (such as Pb, Cd, Cu, Zn, Cr, As) and toxic organic compound (such as chlorinatedorganic, bromo organic matter, antibiotic) pollution
Soil reduces the form that heavy metal in soil activity is strong and bioavailability is strong, heavy metal is prevented to be transformed into from soil mobility
Plant prevents the biological concentration and amplification of heavy metal.
The compound formulation for efficiently removing removing heavy metals of the invention, the compound formulation raw material includes with the following group by weight
Point：
40-60 parts of wheat stalk, 20-40 parts of cow dung, 15-25 parts of bacteria residue, 4-8 parts of gamma-polyglutamic acid, 2-6 parts of gelatin,
10-20 parts of polypropylene amines, 5-10 parts of polyepoxy sodium succinates, 1-5 portions of bagasse, 1-3 parts of glutaraldehyde, carboxymethyl crosslinked starch 1-
5 parts, 5-10 parts of Lignitic Humic Acid, 1-3 parts of biosurfactant, 4-8 parts of flyash, orange peel 4-8 parts modified, the wooden vinegar 1-3
Part, 1-5 parts of active carbon, 1-5 parts of aminodithioformic acid chitosan；The carboxymethyl crosslinked starch is cornstarch and epoxy chlorine
It is made after propane crosslinking with chloroacetate reaction；
The wheat stalk is prepared by following manner：By the wheat stalk of crushing in temperature is 90-110 again in Muffle furnace
It is heated 1 hour at DEG C, then heats to 300-400 DEG C and heat 2 hours, handled 12 hours, gone with hydrochloric acid solution after natural cooling
Ash disposal lease making filtration washing dries 12 hours at being then 70-90 DEG C in temperature to neutrality；
The active carbon is bamboo Fe (NO3)3Temperature is to carbonize to be made at 700-900 DEG C again after solution dipping；
The modified orange peel is prepared by following manner：It is added after orange peel, dehydrated alcohol and sodium hydroxide are mixed
Calcium chloride solution impregnates and is washed to pH neutrality after stirring 16-20 hours, and dry 24 is small at being 65-75 DEG C in temperature after filtering
When；
The bagasse is prepared by following manner：Bagasse powder is broken to 80-100 mesh, it is 20% that concentration, which is then added,
Sodium hydroxide solution, stir 3-4 hours under room temperature, with deionized water washes clean repeatedly after filtering, in temperature be 60-70 DEG C
Lower dry 12-14 hours；Add after processed bagasse is mixed with concentration for 5% sodium hydroxide solution and epoxychloropropane
Heat to 50-60 DEG C stirring 5-6 hours, will generate after product filters and deionized water stirring is added, it is 27% that concentration, which is then added,
The sodium bicarbonate solution that ethylenediamine solution and concentration are 1.5%, is then heated to 80-100 DEG C of reaction 5-6 hours, gained is produced
It is neutral for being washed in turn to product pH value after object filtering with acetone and deionized water, finally filters and is in temperature by gained bagasse
It is 12-13 hours dry at 60-70 DEG C；
Further, the compound formulation raw material includes following components by weight：
50 parts of wheat stalk, 30 parts of cow dung, 20 parts of bacteria residue, 6 parts of gamma-polyglutamic acid, gelatin 4 parts, 15 parts polypropylene amines, 7
Part polyepoxy sodium succinate, 3 portions of bagasse, 2 parts of glutaraldehyde, 3 parts of carboxymethyl crosslinked starch, 7 parts of Lignitic Humic Acid, surface-active
2 parts of agent, 6 parts of flyash, modified 6 parts of orange peel, wooden 2 parts of vinegar, 3 parts of active carbon, 3 parts of aminodithioformic acid chitosan；
Further, the biosurfactant is by weight rhamnolipid：Sophorolipid=2：1 mixture；
Further, in the preparation of modified orange peel, orange peel, dehydrated alcohol, sodium hydroxide and calcium chloride weight ratio be 2：
10：5：5.
Beneficial effects of the present invention：The compound formulation for efficiently removing removing heavy metals of the invention, passes through aminodithioformic acid
Heavy metal is effectively fixed in the components such as chitosan, by wheat stalk, cow dung, bacteria residue, active carbon, flyash, can make soil
The specific gravity of middle available state Pb and Cd obtains different degrees of reduction, reduces the bioavailability of P in soil b, Cd, while again can
Adjustment effect is played to soil, especially with bagasse under mating reaction, increases the fertility maintenance action to soil；Polycyclic oxygen
Sodium succinate has chelation to polyvalent metal ion, and active carbon has 100% mesoporous, and mesopore pore size is 4nm left
The right side, has larger and more absorption hole, and large specific surface area is capable of providing more adsorption potentials；By between each component
The various ways such as chemistry, physical absorption directly occur with heavy metal lead, cadmium and nitrogen ion and cooperate with a removal huge sum of money for synergy
Belong to, available heavy metal content can be reduced, slow down Nitrogen releasing, improve nitrogen utilization efficiency, reduces heavy metal in soil activity
Strong and strong bioavailability form prevents heavy metal from being transformed into plant from soil mobility, prevents the biological concentration of heavy metal
With amplify and mitigate Cadmium accumulation in the plant being grown in contaminated soil, can repair repair each heavy metal species (such as Pb, Cd, Cu,
Zn, Cr, As) and toxic organic compound (such as chlorinatedorganic, bromo organic matter, antibiotic) contaminated soil, it can efficiently remove soil
The heavy metals such as chromium, mercury in earth, while soil can be conserved again, in addition also there is biological degradability, soil will not be made
At secondary pollution.
Specific embodiment
Embodiment one
The compound formulation for efficiently removing removing heavy metals of the present embodiment, the compound formulation raw material includes with the following group by weight
Point：
40 parts of wheat stalk, 20 parts of cow dung, 15 parts of bacteria residue, 4 parts of gamma-polyglutamic acid, gelatin 2 parts, 10 parts polypropylene amines, 5
Part polyepoxy sodium succinate, 1 portion of bagasse, 1 part of glutaraldehyde, 1 part of carboxymethyl crosslinked starch, 5 parts of Lignitic Humic Acid, biological surface
1 part of activating agent, 4 parts of flyash, modified 4 parts of orange peel, wooden 1 part of vinegar, 1 part of active carbon, 1 part of aminodithioformic acid chitosan；
The carboxymethyl crosslinked starch is that cornstarch is made with after epoxychloropropane crosslinking with chloroacetate reaction；
The wheat stalk is prepared by following manner：By the wheat stalk of crushing in temperature is at 90 DEG C again in Muffle furnace
Heating 1 hour then heats to 300 DEG C and heats 2 hours, handled 12 hours after natural cooling with hydrochloric acid solution, removal ash content warp
Filtration washing dries 12 hours at being then 70 DEG C in temperature to neutrality；
The active carbon is bamboo Fe (NO3)3Temperature is to carbonize to be made at 700 DEG C again after solution dipping；
The modified orange peel is prepared by following manner：It is added after orange peel, dehydrated alcohol and sodium hydroxide are mixed
Calcium chloride solution impregnates and is washed to pH neutrality after stirring 16 hours, 24 hours dry at being 65 DEG C in temperature after filtering, described
Orange peel, dehydrated alcohol, sodium hydroxide and calcium chloride weight ratio be 2：10：5：5；
The bagasse is prepared by following manner：Bagasse powder is broken to 80 mesh, the hydrogen that concentration is 20% is then added
Sodium hydroxide solution stirs 3 hours under room temperature, with deionized water washes clean repeatedly after filtering, in temperature be dry 12- at 60 DEG C
14 hours；50 DEG C are heated to after processed bagasse is mixed with concentration for 5% sodium hydroxide solution and epoxychloropropane
Stirring 5 hours will generate after product filters and deionized water stirring is added, and it is 27% ethylenediamine solution and dense that concentration, which is then added,
Degree be 1.5% sodium bicarbonate solution, be then heated to 80 DEG C react 5 hours, after products therefrom is filtered with acetone and go from
It is neutrality that sub- water wheels stream, which is washed to product pH value, finally filter by gained bagasse be 60 DEG C in temperature at dry 12 hours.
Embodiment two
The compound formulation for efficiently removing removing heavy metals of the present embodiment, the compound formulation raw material includes with the following group by weight
Point：
60 parts of wheat stalk, 40 parts of cow dung, 25 parts of bacteria residue, 8 parts of gamma-polyglutamic acid, gelatin 6 parts, 20 parts polypropylene amines, 10
Part polyepoxy sodium succinate, 5 portions of bagasse, 3 parts of glutaraldehyde, 5 parts of carboxymethyl crosslinked starch, 10 parts of Lignitic Humic Acid, biological table
3 parts of face activating agent, 8 parts of flyash, modified 8 parts of orange peel, wooden 3 parts of vinegar, 5 parts of active carbon, aminodithioformic acid chitosan 5
Part；The carboxymethyl crosslinked starch is that cornstarch is made with after epoxychloropropane crosslinking with chloroacetate reaction；
The wheat stalk is prepared by following manner：By the wheat stalk of crushing in temperature is 110 DEG C again in Muffle furnace
Lower heating 1 hour then heats to 400 DEG C and heats 2 hours, handled 12 hours after natural cooling with hydrochloric acid solution, removes ash content
Through filtration washing to neutrality, dried 12 hours at being then 90 DEG C in temperature；
The active carbon is bamboo Fe (NO3)3Temperature is to carbonize to be made at 900 DEG C again after solution dipping；
The modified orange peel is prepared by following manner：It is added after orange peel, dehydrated alcohol and sodium hydroxide are mixed
Calcium chloride solution impregnates and is washed to pH neutrality after stirring 20 hours, 24 hours dry at being 75 DEG C in temperature after filtering, described
Orange peel, dehydrated alcohol, sodium hydroxide and calcium chloride weight ratio be 2：10：5：5；
The bagasse is prepared by following manner：Bagasse powder is broken to 100 mesh, the hydrogen that concentration is 20% is then added
Sodium hydroxide solution stirs 4 hours under room temperature, with deionized water washes clean repeatedly after filtering, in temperature be dry 14 at 70 DEG C
Hour；60 DEG C are heated to after processed bagasse is mixed with concentration for 5% sodium hydroxide solution and epoxychloropropane to stir
It mixes 6 hours, will generate after product filters and deionized water stirring is added, ethylenediamine solution and concentration that concentration is 27% is then added
For 1.5% sodium bicarbonate solution, it is then heated to 100 DEG C and reacts 6 hours, acetone and deionization are used after products therefrom is filtered
It is neutrality that water wheels stream, which is washed to product pH value, finally filter by gained bagasse be 70 DEG C in temperature at dry 13 hours.
Embodiment three
The compound formulation for efficiently removing removing heavy metals of the present embodiment, the compound formulation raw material includes with the following group by weight
Point：
40 parts of wheat stalk, 40 parts of cow dung, 15 parts of bacteria residue, 8 parts of gamma-polyglutamic acid, gelatin 2 parts, 20 parts polypropylene amines, 5
Part polyepoxy sodium succinate, 5 portions of bagasse, 1 part of glutaraldehyde, 5 parts of carboxymethyl crosslinked starch, 5 parts of Lignitic Humic Acid, biological surface
3 parts of activating agent, 4 parts of flyash, modified 8 parts of orange peel, wooden 1 part of vinegar, 5 parts of active carbon, 1 part of aminodithioformic acid chitosan；
The carboxymethyl crosslinked starch is that cornstarch is made with after epoxychloropropane crosslinking with chloroacetate reaction；
The wheat stalk is prepared by following manner：By the wheat stalk of crushing in temperature is at 90 DEG C again in Muffle furnace
Heating 1 hour then heats to 400 DEG C and heats 2 hours, handled 12 hours after natural cooling with hydrochloric acid solution, removal ash content warp
Filtration washing dries 12 hours at being then 70 DEG C in temperature to neutrality；
The active carbon is bamboo Fe (NO3)3Temperature is to carbonize to be made at 900 DEG C again after solution dipping；
The modified orange peel is prepared by following manner：It is added after orange peel, dehydrated alcohol and sodium hydroxide are mixed
Calcium chloride solution impregnates and is washed to pH neutrality after stirring 16 hours, 24 hours dry at being 75 DEG C in temperature after filtering, described
Orange peel, dehydrated alcohol, sodium hydroxide and calcium chloride weight ratio be 2：10：5：5；
The bagasse is prepared by following manner：Bagasse powder is broken to 80 mesh, the hydrogen that concentration is 20% is then added
Sodium hydroxide solution stirs 4 hours under room temperature, with deionized water washes clean repeatedly after filtering, in temperature be dry 12- at 60 DEG C
14 hours；60 DEG C are heated to after processed bagasse is mixed with concentration for 5% sodium hydroxide solution and epoxychloropropane
Stirring 5 hours will generate after product filters and deionized water stirring is added, and it is 27% ethylenediamine solution and dense that concentration, which is then added,
Degree be 1.5% sodium bicarbonate solution, be then heated to 100 DEG C react 5 hours, after products therefrom is filtered with acetone and go from
It is neutrality that sub- water wheels stream, which is washed to product pH value, finally filter by gained bagasse be 70 DEG C in temperature at dry 12 hours.
Example IV
The compound formulation for efficiently removing removing heavy metals of the present embodiment, the compound formulation raw material includes with the following group by weight
Point：
60 parts of wheat stalk, 20 parts of cow dung, 25 parts of bacteria residue, 4 parts of gamma-polyglutamic acid, gelatin 6 parts, 10 parts polypropylene amines, 10
Part polyepoxy sodium succinate, 1 portion of bagasse, 3 parts of glutaraldehyde, 1 part of carboxymethyl crosslinked starch, 10 parts of Lignitic Humic Acid, biological table
1 part of face activating agent, 8 parts of flyash, modified 4 parts of orange peel, wooden 3 parts of vinegar, 1 part of active carbon, aminodithioformic acid chitosan 5
Part；The carboxymethyl crosslinked starch is that cornstarch is made with after epoxychloropropane crosslinking with chloroacetate reaction；
The wheat stalk is prepared by following manner：By the wheat stalk of crushing in temperature is 110 DEG C again in Muffle furnace
Lower heating 1 hour then heats to 300 DEG C and heats 2 hours, handled 12 hours after natural cooling with hydrochloric acid solution, removes ash content
Through filtration washing to neutrality, dried 12 hours at being then 90 DEG C in temperature；
The active carbon is bamboo Fe (NO3)3Temperature is to carbonize to be made at 700 DEG C again after solution dipping；
The modified orange peel is prepared by following manner：It is added after orange peel, dehydrated alcohol and sodium hydroxide are mixed
Calcium chloride solution impregnates and is washed to pH neutrality after stirring 20 hours, 24 hours dry at being 65 DEG C in temperature after filtering, described
Orange peel, dehydrated alcohol, sodium hydroxide and calcium chloride weight ratio be 2：10：5：5；
The bagasse is prepared by following manner：Bagasse powder is broken to 100 mesh, the hydrogen that concentration is 20% is then added
Sodium hydroxide solution stirs 3 hours under room temperature, with deionized water washes clean repeatedly after filtering, in temperature be dry 12- at 70 DEG C
14 hours；50 DEG C are heated to after processed bagasse is mixed with concentration for 5% sodium hydroxide solution and epoxychloropropane
Stirring 6 hours will generate after product filters and deionized water stirring is added, and it is 27% ethylenediamine solution and dense that concentration, which is then added,
Degree be 1.5% sodium bicarbonate solution, be then heated to 80 DEG C react 6 hours, after products therefrom is filtered with acetone and go from
It is neutrality that sub- water wheels stream, which is washed to product pH value, finally filter by gained bagasse be 60 DEG C in temperature at dry 13 hours.
Embodiment five
The compound formulation for efficiently removing removing heavy metals of the present embodiment, the compound formulation raw material includes with the following group by weight
Point：
45 parts of wheat stalk, 35 parts of cow dung, 18 parts of bacteria residue, 6 parts of gamma-polyglutamic acid, gelatin 2 parts, 20 parts polypropylene amines, 8
Part polyepoxy sodium succinate, 2 portions of bagasse, 1 part of glutaraldehyde, 5 parts of carboxymethyl crosslinked starch, 8 parts of Lignitic Humic Acid, biological surface
1 part of activating agent, 8 parts of flyash, modified 6 parts of orange peel, wooden 1 part of vinegar, 5 parts of active carbon, 3 parts of aminodithioformic acid chitosan；
The carboxymethyl crosslinked starch is that cornstarch is made with after epoxychloropropane crosslinking with chloroacetate reaction；
The wheat stalk is prepared by following manner：By the wheat stalk of crushing in temperature is at 95 DEG C again in Muffle furnace
Heating 1 hour then heats to 320 DEG C and heats 2 hours, handled 12 hours after natural cooling with hydrochloric acid solution, removal ash content warp
Filtration washing dries 12 hours at being then 75 DEG C in temperature to neutrality；
The active carbon is bamboo Fe (NO3)3Temperature is to carbonize to be made at 700-900 DEG C again after solution dipping；
The modified orange peel is prepared by following manner：It is added after orange peel, dehydrated alcohol and sodium hydroxide are mixed
Calcium chloride solution impregnates and is washed to pH neutrality after stirring 18 hours, 24 hours dry at being 68 DEG C in temperature after filtering, described
Orange peel, dehydrated alcohol, sodium hydroxide and calcium chloride weight ratio be 2：10：5：5；
The bagasse is prepared by following manner：Bagasse powder is broken to 90 mesh, the hydrogen that concentration is 20% is then added
Sodium hydroxide solution stirs 3 hours under room temperature, with deionized water washes clean repeatedly after filtering, in temperature be dry 13 at 65 DEG C
Hour；55 DEG C are heated to after processed bagasse is mixed with concentration for 5% sodium hydroxide solution and epoxychloropropane to stir
It mixes 5 hours, will generate after product filters and deionized water stirring is added, ethylenediamine solution and concentration that concentration is 27% is then added
For 1.5% sodium bicarbonate solution, it is then heated to 100 DEG C and reacts 6 hours, acetone and deionization are used after products therefrom is filtered
It is neutrality that water wheels stream, which is washed to product pH value, finally filter by gained bagasse be 65 DEG C in temperature at dry 12 hours.
Embodiment six
The compound formulation for efficiently removing removing heavy metals of the present embodiment, the compound formulation raw material includes with the following group by weight
Point：
50 parts of wheat stalk, 30 parts of cow dung, 20 parts of bacteria residue, 6 parts of gamma-polyglutamic acid, gelatin 4 parts, 15 parts polypropylene amines, 7
Part polyepoxy sodium succinate, 3 portions of bagasse, 2 parts of glutaraldehyde, 3 parts of carboxymethyl crosslinked starch, 7 parts of Lignitic Humic Acid, surface-active
2 parts of agent, 6 parts of flyash, modified 6 parts of orange peel, wooden 2 parts of vinegar, 3 parts of active carbon, 3 parts of aminodithioformic acid chitosan；It is described
Carboxymethyl crosslinked starch is that cornstarch is made with after epoxychloropropane crosslinking with chloroacetate reaction；
The wheat stalk is prepared by following manner：By the wheat stalk of crushing in temperature is 100 DEG C again in Muffle furnace
Lower heating 1 hour then heats to 350 DEG C and heats 2 hours, handled 12 hours after natural cooling with hydrochloric acid solution, removes ash content
Through filtration washing to neutrality, dried 12 hours at being then 80 DEG C in temperature；
The active carbon is bamboo Fe (NO3)3Temperature is to carbonize to be made at 80 DEG C again after solution dipping；
The modified orange peel is prepared by following manner：It is added after orange peel, dehydrated alcohol and sodium hydroxide are mixed
Calcium chloride solution impregnates and is washed to pH neutrality after stirring 18 hours, 24 hours dry at being 70 DEG C in temperature after filtering, described
Orange peel, dehydrated alcohol, sodium hydroxide and calcium chloride weight ratio be 2：10：5：5；
The bagasse is prepared by following manner：Bagasse powder is broken to 90 mesh, the hydrogen that concentration is 20% is then added
Sodium hydroxide solution stirs 3 hours under room temperature, with deionized water washes clean repeatedly after filtering, in temperature be dry 12- at 65 DEG C
14 hours；55 DEG C are heated to after processed bagasse is mixed with concentration for 5% sodium hydroxide solution and epoxychloropropane
Stirring 6 hours will generate after product filters and deionized water stirring is added, and it is 27% ethylenediamine solution and dense that concentration, which is then added,
Degree be 1.5% sodium bicarbonate solution, be then heated to 90 DEG C of reactions 5-6 hours, after products therefrom is filtered with acetone with go
It is neutrality that ionized water, which is washed in turn to product pH value, finally filter by gained bagasse be 65 DEG C in temperature at dry 12 hours.
In above-described embodiment, the biosurfactant is by weight rhamnolipid：Sophorolipid=2：1 mixing
Object.
The compound formulation of removing heavy metals is gone to apply 5cm thickness on the surface of heavy-metal contaminated soil above-described embodiment
After compound formulation of the invention, the soil of polluted soil surface layer 20cm thickness and the soil-repairing agent of application are passed through into the side turned over
Formula is uniformly mixed.After a week, the in-situ immobilization for realizing heavy-metal contaminated soil, the soil property and natural soils after reparation are close.
Soil environment quality after reparation meets China《Standard of soil environment quality》(GB 15618-1995) secondary standard value is wanted
It asks, reparation result is as shown in the table, unit：mg/Kg.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (4)
1. a kind of compound formulation for efficiently removing removing heavy metals, it is characterised in that：The compound formulation raw material include by weight with
Lower component：
40-60 parts of wheat stalk, 20-40 parts of cow dung, 15-25 parts of bacteria residue, 4-8 parts of gamma-polyglutamic acid, 2-6 parts of gelatin, 10-20
Part polypropylene amine, 5-10 parts of polyepoxy sodium succinates, 1-5 portions of bagasse, 1-3 parts of glutaraldehyde, 1-5 parts of carboxymethyl crosslinked starch,
5-10 parts of Lignitic Humic Acid, 4-8 parts of flyash, is modified orange peel 4-8 parts, wooden 1-3 parts of the vinegar, lives 1-3 parts of biosurfactant
Property 1-5 parts of charcoal, 1-5 parts of aminodithioformic acid chitosan；The carboxymethyl crosslinked starch is cornstarch and epoxychloropropane
It is made after crosslinking with chloroacetate reaction；
The wheat stalk is prepared by following manner：By the wheat stalk of crushing in temperature is at 90-110 DEG C again in Muffle furnace
Heating 1 hour then heats to 300-400 DEG C and heats 2 hours, handled 12 hours after natural cooling with hydrochloric acid solution, go ash disposal
Lease making filtration washing dries 12 hours at being then 70-90 DEG C in temperature to neutrality；
The active carbon is bamboo Fe (NO3)3Temperature is to carbonize to be made at 700-900 DEG C again after solution dipping；
The modified orange peel is prepared by following manner：Chlorination is added after orange peel, dehydrated alcohol and sodium hydroxide are mixed
Calcium solution impregnates and is washed to pH neutrality after stirring 16-20 hours, 24 hours dry at being 65-75 DEG C in temperature after filtering；
The bagasse is prepared by following manner：Bagasse powder is broken to 80-100 mesh, the hydrogen that concentration is 20% is then added
Sodium hydroxide solution stirs 3-4 hours under room temperature, is to do at 60-70 DEG C in temperature with deionized water washes clean repeatedly after filtering
It is 12-14 hours dry；It is heated to after processed bagasse is mixed with concentration for 5% sodium hydroxide solution and epoxychloropropane
50-60 DEG C stirring 5-6 hours, will generate product filter after be added deionized water stirring, then be added concentration be 27% second two
The sodium bicarbonate solution that amine aqueous solution and concentration are 1.5%, is then heated to 80-100 DEG C of reaction 5-6 hours, by products therefrom mistake
It is neutral for being washed in turn to product pH value after filter with acetone and deionized water, and finally filtering gained bagasse in temperature is 60-
It is 12-13 hours dry at 70 DEG C.
2. the compound formulation according to claim 1 for efficiently removing removing heavy metals, it is characterised in that：The compound formulation raw material
It by weight include following components：
50 parts of wheat stalk, 30 parts of cow dung, 20 parts of bacteria residue, 6 parts of gamma-polyglutamic acid, 4 parts, 15 parts polypropylene amines of gelatin, 7 parts it is poly-
Epoxy sodium succinate, 3 portions of bagasse, 2 parts of glutaraldehyde, 3 parts of carboxymethyl crosslinked starch, 7 parts of Lignitic Humic Acid, surfactant 2
Part, 6 parts of flyash, modified 6 parts of orange peel, wooden 2 parts of vinegar, 3 parts of active carbon, 3 parts of aminodithioformic acid chitosan.
3. the compound formulation according to claim 1 for efficiently removing removing heavy metals, it is characterised in that：The Bio-surface active
Agent is by weight rhamnolipid：Sophorolipid=2：1 mixture.
4. the compound formulation according to claim 3 for efficiently removing removing heavy metals, it is characterised in that：The preparation of modified orange peel
In, orange peel, dehydrated alcohol, sodium hydroxide and calcium chloride weight ratio be 2：10：5：5.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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