CN105772500A - Remediation method for soil contaminated by heavy metal - Google Patents
Remediation method for soil contaminated by heavy metal Download PDFInfo
- Publication number
- CN105772500A CN105772500A CN201610325710.0A CN201610325710A CN105772500A CN 105772500 A CN105772500 A CN 105772500A CN 201610325710 A CN201610325710 A CN 201610325710A CN 105772500 A CN105772500 A CN 105772500A
- Authority
- CN
- China
- Prior art keywords
- parts
- heavy metal
- soil
- container
- heavy
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Mycology (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a remediation method for soil contaminated by heavy metal. Heavy metal absorbents are applied to the contaminated soil, collecting gutters are constructed in the periphery of the soil contaminated by the heavy metal, acid elution solutions are sprayed on the surface of the soil contaminated by the heavy metal after heavy metal passivators are applied until the measured content of the heavy metal in the soil contaminated by the heavy metal does not change, the soil contaminated by the heavy metal is washed by clean water until the soil is neutral, and then conditioners and improvement agents for the soil contaminated by the heavy metal are applied. According to the remediation method, the collecting gutters are constructed in the periphery of the soil contaminated by the heavy metal, impermeable films are laid on the bottoms of the collecting gutters, and therefore the heavy metal in the soil contaminated by the heavy metal can be prevented from being leaked or diffused to the deeper part of the soil; one collecting tank can be shared by a plurality of pieces of soil contaminated by the heavy metal, and therefore the resources can be saved; calcium, magnesium, silicon, potassium, phosphorus, iron, manganese, zinc, boron and molybdenum lost from the soil can be supplemented by the improvement agents and the conditioners, and therefore the soil fertility can be improved.
Description
Technical field
The invention belongs to technical field of soil remediation, particularly relate to a heavy metal species soil remediation method.
Background technology
Fast development along with industry and mining industry, and dirt fills and mud abuse, a series of reasons such as agriculture chemical is unreasonable to be used, the imperfect combustion of fossil class A fuel A and agricultural film, make heavy metal pollution in being on the rise, ecological environment and health are caused great threat.Additionally, heavy metal pollution also will cause soil degradation, crop failure, and affect the life security of the mankind possibly through food chain.Therefore, the improvement of heavy metal contaminated soil and reparation, task is very urgent.
Heavy metal-polluted soil is administered and restorative procedure has chemical harnessing technology, plant absorption technology etc..Chemical harnessing technology is interpolation passivator in soil, by series reaction such as absorption, complexation, precipitation, oxidoreduction and ion exchanges, reduce the biological effectiveness of heavy metal and transportable property, reduce heavy metal content in soil purpose, but chemical harnessing narrow application range, can only for a certain or a certain class heavy metal, capacity is little, cost is high in process；Plant absorption technology is to utilize the heavy metal in plant absorption, decomposition, curing soil, reduces its content in soil.In heavy metal Treatment process, plant absorption technology is because having that treatment cost is low, not being used widely by the advantage such as restriction of soil types, but existing plant absorption technology also exists the problem that Metal uptake kind is single and absorbtivity is low.
Summary of the invention
It is an object of the invention to provide a heavy metal species soil remediation method, it is intended to solve existing heavy metal-polluted soil restorative procedure narrow application range, process the problem that capacity is little, absorbtivity is low.
The present invention is achieved in that a heavy metal species soil remediation method includes:
Step one, plowed soils, apply heavy metal absorbent by the amount of 100kg/ mu, and thin film covers 20～30 days；
Step 2, heavy-metal contaminated soil periphery build collecting gutter, the bottom of described collecting gutter is equipped with antiseepage film；
The collecting-tank that step 3, build connect with described collecting gutter, the bottom of described collecting-tank and sidewall are all equipped with antiseepage film；
Step 4, applying heavy metal absorbent, thin film covers the soil of 20～30 days and pours water and irrigate, and dry in the sun one week is turned over one time, by the amount of 50Kg/ mu applying heavy metal deactivator, dry in the sun one week；
Step 5, the acid leacheate of use are sprayed on the surface of described heavy-metal contaminated soil, and described acid leacheate infiltrates in described collecting gutter through described heavy-metal contaminated soil, and is collected in described collecting-tank, obtains the leacheate containing heavy metal；Acid leacheate is calculated as by weight: di-n-octyl sebacate 5 parts-9 parts；4-(2,6,6-trimethyl-2-cyclo-octene-1-base)-3-butene-2-one 13 parts-18 parts；1,4-lupetazin 7 parts-19 parts；Salicin 9 parts-16 parts；2-piconol 5 parts-9 parts；Ammonium citrate 6 parts-10 parts；Oleanolic aldehyde 4 parts-8 parts；Fatty alcohol-polyoxyethylene ether 12 parts-19 parts；Polyoxypropylene diol 12 parts-19 parts；4-aminoisoquinoline 1 part-5 parts；Polycarboxylate 2 parts-4.5 parts；Sodium Alginate 5 parts-17 parts；Sodium ethylate 7 parts-10 parts；Alkyl-polyoxyethylene ether acetate 16 parts-26 parts；Deionized water 90 parts-100 parts；
Described heavy-metal contaminated soil is repeated drip washing reparation by step 6, the described leacheate containing heavy metal of utilization, till the content of beary metal measured in the described heavy-metal contaminated soil obtained no longer changes；And with heavy-metal contaminated soil described in clear water drip washing to neutral；
Step 7, apply heavy metal soil conditioner by the amount of 30kg/ mu, after dry in the sun 10～15 days, apply soil conditioner by the amount of 30kg/ mu.
Further, the component of described heavy metal absorbent is mass ratio: peat 15～25%, activation charcoal 5%～10%, natural fertile soil 11～27%, Ke shell powder 10～25%, biological carbon 20～30%, chitosan 7%～10%.
Further, described heavy metal absorbent preparation method is as follows:
Step one: after peat, natural fertile soil, Ke shell powder, biological carbon, chitosan are sufficiently stirred for by described mass percent, ferments in the temperature more than 8 DEG C；
Step 2: after fermenting 15 days, adds activation charcoal by described mass ratio, stirs evenly.
Further, the component of described heavy metal deactivator is:
Humic acid 15～20 parts, sulfhydryl compound 30～50 parts, 10～30 parts of calcium phosphate, chitosan 3～10 parts, plant ash 5～15 parts.
Further, described soil conditioner component is: humic acids 8 parts-20 parts, 15 parts-25 parts of calcium magnesium phosphate, plant ash 10 parts-15 parts, dipotassium hydrogen phosphate 10 parts-25 parts, potassium carbonate 15 parts-20 parts, calcium cyanamide 1-2 part, sodium polyphosphate 1-2 part, EM complex micro organism fungicide 3-4 part.
Further, the preparation method of described soil conditioner is:
Step one, humic acid pretreatment: humic acid be the mother solution after being fermented by methane-generating pit through solid-liquid separation, take solid portion biogas residue carry out air-dry or dry；
Step 2, weigh: humic acids of weighing in proportion respectively, calcium magnesium phosphate, plant ash, dipotassium hydrogen phosphate, potassium carbonate, calcium cyanamide, sodium polyphosphate；
Step 3, mixing: after raw material pulverizing alleged by step one and step 2, mix homogeneously, by adding water, regulate the water content of mixed material to 60%-80%, obtain compound；
Step 4, fermentation: adding yeast, then compost fermentation in step 3 gained compound, temperature controls after 60 DEG C to 70 DEG C, continuing 25 to 30 days, turning in two to three days is ventilated once, when material moisture is down to less than 10%, odorless, obtains the material that fermentation maturity is good；
Step 5, pulverizing: by material good for step 4 gained fermentation maturity again through, after turning mix homogeneously, being ground into the fine powder of 50 orders by pulverizer, add EM complex micro organism fungicide, obtain soil conditioner.
Further, the component of described soil conditioner is:
Potassium silicate 15-20 part, ocean shellfish breeze 20-25 part, carbamide 15-20 part, ammonium molybdate 0.1-0.5 part, ethylenediaminetetraacetic acid 0.2-2 part, diethylamino ethanol caproate 0.1-0.5 part, compound sodium nitrophenolate 0.1-0.5 part, ground phosphate rock 12-15 part, calcium chloride 6-7 part, puritan filler potassic-magnesian fertilizer 5-7 part, mineral powder 18-20 part.
Further, the preparation method of described biological carbon comprises the steps:
(1) carbon is laid on the container bottom of a upper opening, the carbon laid is laid rubbish from cooking, this layer of rubbish from cooking re-lays carbon, final layer and vessel port interval and leaves space, vessel port is sealed bottom this；The mass ratio of every layer of carbon laid and every layer of rubbish from cooking laid is 2:3-5；Final layer and interval height is described container height 3/4ths of vessel port；
(2) together with the carbon in container and rubbish from cooking, container being carried out closing anaerobic to fire, firing temperature is 500-900 DEG C, and the firing time is 2h-2.5h；
(3), after firing, treat in container that temperature is cooled to less than 70 DEG C and open container, obtain biological carbon.
Further, described rustless steel container includes container body and for sealing the container cover of container, rustless steel punching web plate it is provided above bottom described container body inherence, and it is provided with rustless steel punching webmaster in the middle part of this rustless steel punching web plate, described rustless steel punching webmaster top and vessel port have interval, described container cover is provided with some air-vents, container cover and container body junction and some air-vents are wiped with yellow mud；Described rustless steel punching webmaster distance vessel port height is 1/3rd of described container height.
Further, described EM complex micro organism fungicide is to adopt compound enzyme, compound microelement to be mixed with the organic carrier being adsorbed with EM original solution to form；
Described compound enzyme, to account for the percentages of finished product gross weight, includes: the pectase 1%-2% of the saccharifying enzyme 3%-8% of the cellulase 2%-6% of 30,000 u/g, 100,000 u/g, 50,000 u/g；
Described compound microelement, to account for the percentages of finished product gross weight, includes: ferrous sulfate 1%-5%, zinc sulfate 1%-5%, copper sulfate 1%-2%, manganese sulfate 1%-5%；
The described organic carrier being adsorbed with EM original solution, is access EM original solution with organic carrier, prepares through adsorbing → drying；The described organic carrier being adsorbed with EM original solution, accounts for the 73%-90% of finished product gross weight；
Described EM original solution, is adsorbed with the organic carrier gross weight 10%-20% of EM original solution described in accounting for；
Described organic carrier, to account for the percentages of the organic carrier gross weight being adsorbed with EM original solution, is the raw material by including Testa oryzae 70%-80%, clear water 8%-15%, brown sugar 1%-4%, bean cake 1%-2%, and blended → steam sterilization → cooling prepares；
Described organic carrier, several mixes including the one in Testa oryzae, starch, Semen Maydis powder, wheat bran or by therein；
The preparation method of EM microorganism formulation includes:
A, described in be adsorbed with the preparation of organic carrier of EM original solution: to need the percentages of the gross weight of the organic carrier being adsorbed with EM original solution of preparation, take Testa oryzae 70%-80%, clear water 8%-15%, brown sugar 1%-4%, bean cake 1%-2%, mix homogeneously, steam sterilization more than 100 DEG C, cooling, accesses commercially available EM original solution 10%-20%, then paves absorption 10-12 hour with the thickness of 5cm-10cm, finally at temperature is lower than 60 DEG C, it is dried to moisture content≤12%, standby；Made above obtain described in be adsorbed with the organic carrier of EM original solution, account for the 73%-90% of finished product gross weight；
B, described compound enzyme preparation: to account for the percentage calculation of finished product gross weight, weigh the pectase 1%-2% of the saccharifying enzyme 3%-8% of the cellulase 2%-6% of 30,000 u/g, 100,000 u/g, 50,000 u/g, mix homogeneously, standby；
C, described compound microelement preparation: to account for the percentage calculation of finished product gross weight, weigh ferrous sulfate 1%-5%, zinc sulfate 1%-5%, copper sulfate 1%-2%, manganese sulfate 1%-5%, mix homogeneously, standby；
D, above-mentioned A, B, C tri-kinds prepare material mixing, namely obtain finished product.
The present invention builds collecting gutter at the periphery of heavy-metal contaminated soil, and it is equipped with antiseepage film in the bottom of collecting gutter, heavy metal in heavy-metal contaminated soil can be prevented to soil deeper seepage and diffusion, multiple heavy-metal contaminated soil scopes can share a collecting-tank, economize on resources, can be supplemented by soil conditioner and soil conditioner soil runs off calcium, magnesium, potassium, the element such as phosphorus, increase soil fertility.
Accompanying drawing explanation
Fig. 1 is the heavy metal soil remediation method flow chart that the embodiment of the present invention provides.
Detailed description of the invention
For the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, and it is as follows to coordinate accompanying drawing to describe in detail.
Refer to Fig. 1:
One heavy metal species soil remediation method, including:
S101, plowed soils, apply heavy metal absorbent by the amount of 100kg/ mu, and thin film covers 20～30 days；
S102, heavy-metal contaminated soil periphery build collecting gutter, the bottom of described collecting gutter is equipped with antiseepage film；
The collecting-tank that S103, build connect with described collecting gutter, the bottom of described collecting-tank and sidewall are all equipped with antiseepage film；
S104, applying heavy metal absorbent, thin film covers the soil of 20～30 days and pours water and irrigate, and dry in the sun one week is turned over one time, by the amount of 50Kg/ mu applying heavy metal deactivator, dry in the sun one week；
S105, the acid leacheate of use are sprayed on the surface of described heavy-metal contaminated soil, and described acid leacheate infiltrates in described collecting gutter through described heavy-metal contaminated soil, and is collected in described collecting-tank, obtains the leacheate containing heavy metal；
Described heavy-metal contaminated soil is repeated drip washing reparation by S106, the described leacheate containing heavy metal of utilization, till the content of beary metal measured in the described heavy-metal contaminated soil obtained no longer changes；And with heavy-metal contaminated soil described in clear water drip washing to neutral；
S107, apply heavy metal soil conditioner by the amount of 30kg/ mu, after dry in the sun 10～15 days, apply soil conditioner by the amount of 30kg/ mu.
Acid leacheate is calculated as by weight: di-n-octyl sebacate 5 parts-9 parts；4-(2,6,6-trimethyl-2-cyclo-octene-1-base)-3-butene-2-one 13 parts-18 parts；1,4-lupetazin 7 parts-19 parts；Salicin 9 parts-16 parts；2-piconol 5 parts-9 parts；Ammonium citrate 6 parts-10 parts；Oleanolic aldehyde 4 parts-8 parts；Fatty alcohol-polyoxyethylene ether 12 parts-19 parts；Polyoxypropylene diol 12 parts-19 parts；4-aminoisoquinoline 1 part-5 parts；Polycarboxylate 2 parts-4.5 parts；Sodium Alginate 5 parts-17 parts；Sodium ethylate 7 parts-10 parts；Alkyl-polyoxyethylene ether acetate 16 parts-26 parts；Deionized water 90 parts-100 parts.
Further, the component of described heavy metal absorbent is mass ratio: peat 15～25%, activation charcoal 5%～10%, natural fertile soil 11～27%, Ke shell powder 10～25%, biological carbon 20～30%, chitosan 7%～10%.
Further, described heavy metal absorbent preparation method is as follows:
Step one: after peat, natural fertile soil, Ke shell powder, biological carbon, chitosan are sufficiently stirred for by described mass percent, ferments in the temperature more than 8 DEG C；
Step 2: after fermenting 15 days, adds activation charcoal by described mass ratio, stirs evenly.
Further, the component of described heavy metal deactivator is:
Humic acid 15～20 parts, sulfhydryl compound 30～50 parts, 10～30 parts of calcium phosphate, chitosan 3～10 parts, plant ash 5～15 parts.
Further, described soil conditioner component is: humic acids 8 parts-20 parts, 15 parts-25 parts of calcium magnesium phosphate, plant ash 10 parts-15 parts, dipotassium hydrogen phosphate 10 parts-25 parts, potassium carbonate 15 parts-20 parts, calcium cyanamide 1-2 part, sodium polyphosphate 1-2 part, EM complex micro organism fungicide 3-4 part.
Further, the preparation method of described soil conditioner is:
Step one, humic acid pretreatment: humic acid be the mother solution after being fermented by methane-generating pit through solid-liquid separation, take solid portion biogas residue carry out air-dry or dry；
Step 2, weigh: humic acids of weighing in proportion respectively, calcium magnesium phosphate, plant ash, dipotassium hydrogen phosphate, potassium carbonate, calcium cyanamide, sodium polyphosphate；
Step 3, mixing: after raw material pulverizing alleged by step one and step 2, mix homogeneously, by adding water, regulate the water content of mixed material to 60%-80%, obtain compound；
Step 4, fermentation: adding yeast, then compost fermentation in step 3 gained compound, temperature controls after 60 DEG C to 70 DEG C, continuing 25 to 30 days, turning in two to three days is ventilated once, when material moisture is down to less than 10%, odorless, obtains the material that fermentation maturity is good；
Step 5, pulverizing: by material good for step 4 gained fermentation maturity again through, after turning mix homogeneously, being ground into the fine powder of 50 orders by pulverizer, add EM complex micro organism fungicide, obtain soil conditioner.
Further, the component of described soil conditioner is:
Potassium silicate 15-20 part, ocean shellfish breeze 20-25 part, carbamide 15-20 part, ammonium molybdate 0.1-0.5 part, ethylenediaminetetraacetic acid 0.2-2 part, diethylamino ethanol caproate 0.1-0.5 part, compound sodium nitrophenolate 0.1-0.5 part, ground phosphate rock 12-15 part, calcium chloride 6-7 part, puritan filler potassic-magnesian fertilizer 5-7 part, mineral powder 18-20 part.
Further, the preparation method of described biological carbon comprises the steps:
(1) carbon is laid on the container bottom of a upper opening, the carbon laid is laid rubbish from cooking, this layer of rubbish from cooking re-lays carbon, final layer and vessel port interval and leaves space, vessel port is sealed bottom this；The mass ratio of every layer of carbon laid and every layer of rubbish from cooking laid is 2:3-5；Final layer and interval height is described container height 3/4ths of vessel port；
(2) together with the carbon in container and rubbish from cooking, container being carried out closing anaerobic to fire, firing temperature is 500-900 DEG C, and the firing time is 2h-2.5h；
(3), after firing, treat in container that temperature is cooled to less than 70 DEG C and open container, obtain biological carbon.
Further, described rustless steel container includes container body and for sealing the container cover of container, rustless steel punching web plate it is provided above bottom described container body inherence, and it is provided with rustless steel punching webmaster in the middle part of this rustless steel punching web plate, described rustless steel punching webmaster top and vessel port have interval, described container cover is provided with some air-vents, container cover and container body junction and some air-vents are wiped with yellow mud；Described rustless steel punching webmaster distance vessel port height is 1/3rd of described container height.
Further, described EM complex micro organism fungicide is to adopt compound enzyme, compound microelement to be mixed with the organic carrier being adsorbed with EM original solution to form；
Described compound enzyme, to account for the percentages of finished product gross weight, includes: the pectase 1%-2% of the saccharifying enzyme 3%-8% of the cellulase 2%-6% of 30,000 u/g, 100,000 u/g, 50,000 u/g；
Described compound microelement, to account for the percentages of finished product gross weight, includes: ferrous sulfate 1%-5%, zinc sulfate 1%-5%, copper sulfate 1%-2%, manganese sulfate 1%-5%；
The described organic carrier being adsorbed with EM original solution, is access EM original solution with organic carrier, prepares through adsorbing → drying；The described organic carrier being adsorbed with EM original solution, accounts for the 73%-90% of finished product gross weight；
Described EM original solution, is adsorbed with the organic carrier gross weight 10%-20% of EM original solution described in accounting for；
Described organic carrier, to account for the percentages of the organic carrier gross weight being adsorbed with EM original solution, is the raw material by including Testa oryzae 70%-80%, clear water 8%-15%, brown sugar 1%-4%, bean cake 1%-2%, and blended → steam sterilization → cooling prepares；
Described organic carrier, several mixes including the one in Testa oryzae, starch, Semen Maydis powder, wheat bran or by therein；
The preparation method of EM microorganism formulation includes:
A, described in be adsorbed with the preparation of organic carrier of EM original solution: to need the percentages of the gross weight of the organic carrier being adsorbed with EM original solution of preparation, take Testa oryzae 70%-80%, clear water 8%-15%, brown sugar 1%-4%, bean cake 1%-2%, mix homogeneously, steam sterilization more than 100 DEG C, cooling, accesses commercially available EM original solution 10%-20%, then paves absorption 10-12 hour with the thickness of 5cm-10cm, finally at temperature is lower than 60 DEG C, it is dried to moisture content≤12%, standby；Made above obtain described in be adsorbed with the organic carrier of EM original solution, account for the 73%-90% of finished product gross weight；
B, described compound enzyme preparation: to account for the percentage calculation of finished product gross weight, weigh the pectase 1%-2% of the saccharifying enzyme 3%-8% of the cellulase 2%-6% of 30,000 u/g, 100,000 u/g, 50,000 u/g, mix homogeneously, standby；
C, described compound microelement preparation: to account for the percentage calculation of finished product gross weight, weigh ferrous sulfate 1%-5%, zinc sulfate 1%-5%, copper sulfate 1%-2%, manganese sulfate 1%-5%, mix homogeneously, standby；
D, above-mentioned A, B, C tri-kinds prepare material mixing, namely obtain finished product.
In the present embodiment, the periphery at every piece little rectangular block heavy-metal contaminated soil builds collecting gutter, and collecting gutter is rectangle around the figure that little rectangular block heavy-metal contaminated soil is constituted.And it being equipped with antiseepage film in the bottom of collecting gutter, it is prevented that the heavy metal in heavy-metal contaminated soil is to soil deeper seepage and diffusion.Being appreciated that in other embodiments, the depth and width of collecting gutter can be determined according to the actual contamination degree of depth of heavy-metal contaminated soil.Can avoid owing to pollution depth is relatively deep, and collecting gutter is shallower, causes heavy-metal contaminated soil to repair halfway problem.Can also avoid owing to pollution depth is shallower, and collecting gutter is relatively deep, increases unnecessary workload, thus the problem increasing cost.
The intersection on two limits in the rectangular set ditch of the rectangular block heavy-metal contaminated soil periphery treating drip washing built by collecting-tank, so that collecting-tank distance treats the rectangular block heavy-metal contaminated soil relative close of drip washing, and then shortening leacheate is sprayed onto the distance on heavy-metal contaminated soil, thus having saved the rehabilitation cost of heavy-metal contaminated soil to a certain extent.Being appreciated that in other embodiments, the multiple rectangular block heavy-metal contaminated soils differing levels of contamination can share a collecting-tank, when the leacheate after the Soil leaching to slight pollution can continue severe contaminated soil is carried out drip washing.Certainly, multiple heavy-metal contaminated soils of identical levels of contamination can share a collecting-tank.
The heavy metal absorbent used is the material of a kind of rich lean nitrogen of carbon, and porosity is high, and specific surface area is big, it is easy to absorption water and inorganic ions in soil, be applied to soil improvement.Adsorption fouling thing and heavy metal, increase fertility, improves crop yield, slows down the best product of global warming.The interpolation of heavy metal absorbent can suppress mobility and the effectiveness of the heavy metal of polluted soil, can be supplemented by soil conditioner and soil conditioner soil runs off calcium, magnesium, potassium, the element such as phosphorus, increase soil fertility.
The above is only to presently preferred embodiments of the present invention, not the present invention is done any pro forma restriction, every technical spirit according to the present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, belongs in the scope of technical solution of the present invention.
Claims (4)
1. a heavy metal species soil remediation method, it is characterised in that described heavy metal soil remediation method includes:
Step one, plowed soils, apply heavy metal absorbent by the amount of 100kg/ mu, and thin film covers 20～30 days；
Step 2, heavy-metal contaminated soil periphery build collecting gutter, the bottom of described collecting gutter is equipped with antiseepage film；
The collecting-tank that step 3, build connect with described collecting gutter, the bottom of described collecting-tank and sidewall are all equipped with antiseepage film；
Step 4, applying heavy metal absorbent, thin film covers the soil of 20～30 days and pours water and irrigate, and dry in the sun one week is turned over one time, by the amount of 50Kg/ mu applying heavy metal deactivator, dry in the sun one week；The component of described heavy metal absorbent is mass ratio: peat 15～25%, activation charcoal 5%～10%, natural fertile soil 11～27%, Ke shell powder 10～25%, biological carbon 20～30%, chitosan 7%～10%；Described heavy metal absorbent preparation method is as follows:
After peat, natural fertile soil, Ke shell powder, biological carbon, chitosan are sufficiently stirred for by described mass percent, the temperature more than 8 DEG C ferments；
After fermenting 15 days, add activation charcoal by described mass ratio, stir evenly；
The component of described heavy metal deactivator is:
Humic acid 15～20 parts, sulfhydryl compound 30～50 parts, 10～30 parts of calcium phosphate, chitosan 3～10 parts, plant ash 5～15 parts；
Step 5, the acid leacheate of use are sprayed on the surface of described heavy-metal contaminated soil, and described acid leacheate infiltrates in described collecting gutter through described heavy-metal contaminated soil, and is collected in described collecting-tank, obtains the leacheate containing heavy metal；Acid leacheate is calculated as by weight: di-n-octyl sebacate 5 parts-9 parts；4-(2,6,6-trimethyl-2-cyclo-octene-1-base)-3-butene-2-one 13 parts-18 parts；1,4-lupetazin 7 parts-19 parts；Salicin 9 parts-16 parts；2-piconol 5 parts-9 parts；Ammonium citrate 6 parts-10 parts；Oleanolic aldehyde 4 parts-8 parts；Fatty alcohol-polyoxyethylene ether 12 parts-19 parts；Polyoxypropylene diol 12 parts-19 parts；4-aminoisoquinoline 1 part-5 parts；Polycarboxylate 2 parts-4.5 parts；Sodium Alginate 5 parts-17 parts；Sodium ethylate 7 parts-10 parts；Alkyl-polyoxyethylene ether acetate 16 parts-26 parts；Deionized water 90 parts-100 parts；
Described heavy-metal contaminated soil is repeated drip washing reparation by step 6, the described leacheate containing heavy metal of utilization, till the content of beary metal measured in the described heavy-metal contaminated soil obtained no longer changes；And with heavy-metal contaminated soil described in clear water drip washing to neutral；
Step 7, apply heavy metal soil conditioner by the amount of 30kg/ mu, after dry in the sun 10～15 days, apply soil conditioner by the amount of 30kg/ mu；Described soil conditioner component is: humic acids 8 parts-20 parts, 15 parts-25 parts of calcium magnesium phosphate, plant ash 10 parts-15 parts, dipotassium hydrogen phosphate 10 parts-25 parts, potassium carbonate 15 parts-20 parts, calcium cyanamide 1-2 part, sodium polyphosphate 1-2 part, EM complex micro organism fungicide 3-4 part；
The preparation method of described soil conditioner is:
Humic acid pretreatment: humic acid be the mother solution after being fermented by methane-generating pit through solid-liquid separation, take solid portion biogas residue carry out air-dry or dry；
Weigh: humic acids of weighing in proportion respectively, calcium magnesium phosphate, plant ash, dipotassium hydrogen phosphate, potassium carbonate, calcium cyanamide, sodium polyphosphate；
Mixing: after alleged raw material pulverizing, mix homogeneously, by adding water, regulate the water content of mixed material to 60%-80%, obtain compound；
Fermentation: adding yeast, then compost fermentation in gained compound, temperature controls after 60 DEG C to 70 DEG C, continues 25 to 30 days, and turning in two to three days is ventilated once, when material moisture is down to less than 10%, odorless, obtain the material that fermentation maturity is good；
Pulverize: by material good for step 4 gained fermentation maturity again through, after turning mix homogeneously, being ground into the fine powder of 50 orders by pulverizer, add EM complex micro organism fungicide, obtain soil conditioner；
The component of described soil conditioner is:
Potassium silicate 15-20 part, ocean shellfish breeze 20-25 part, carbamide 15-20 part, ammonium molybdate 0.1-0.5 part, ethylenediaminetetraacetic acid 0.2-2 part, diethylamino ethanol caproate 0.1-0.5 part, compound sodium nitrophenolate 0.1-0.5 part, ground phosphate rock 12-15 part, calcium chloride 6-7 part, puritan filler potassic-magnesian fertilizer 5-7 part, mineral powder 18-20 part.
2. heavy metal soil remediation method as claimed in claim 1, it is characterised in that the preparation method of described biological carbon comprises the steps:
(1) carbon is laid on the container bottom of a upper opening, the carbon laid is laid rubbish from cooking, this layer of rubbish from cooking re-lays carbon, final layer and vessel port interval and leaves space, vessel port is sealed bottom this；The mass ratio of every layer of carbon laid and every layer of rubbish from cooking laid is 2:3-5；Final layer and interval height is described container height 3/4ths of vessel port；
(2) together with the carbon in container and rubbish from cooking, container being carried out closing anaerobic to fire, firing temperature is 500-900 DEG C, and the firing time is 2h-2.5h；
(3), after firing, treat in container that temperature is cooled to less than 70 DEG C and open container, obtain biological carbon.
3. heavy metal soil remediation method as claimed in claim 2, it is characterized in that, described rustless steel container includes container body and for sealing the container cover of container, rustless steel punching web plate it is provided above bottom described container body inherence, and it is provided with rustless steel punching webmaster in the middle part of this rustless steel punching web plate, described rustless steel punching webmaster top and vessel port have interval, described container cover is provided with some air-vents, container cover and container body junction and some air-vents are wiped with yellow mud；Described rustless steel punching webmaster distance vessel port height is 1/3rd of described container height.
4. heavy metal soil remediation method as claimed in claim 1, it is characterised in that described EM complex micro organism fungicide is to adopt compound enzyme, compound microelement to be mixed with the organic carrier being adsorbed with EM original solution to form；
Described compound enzyme, to account for the percentages of finished product gross weight, includes: the pectase 1%-2% of the saccharifying enzyme 3%-8% of the cellulase 2%-6% of 30,000 u/g, 100,000 u/g, 50,000 u/g；
Described compound microelement, to account for the percentages of finished product gross weight, includes: ferrous sulfate 1%-5%, zinc sulfate 1%-5%, copper sulfate 1%-2%, manganese sulfate 1%-5%；
The described organic carrier being adsorbed with EM original solution, is access EM original solution with organic carrier, prepares through adsorbing → drying；The described organic carrier being adsorbed with EM original solution, accounts for the 73%-90% of finished product gross weight；
Described EM original solution, is adsorbed with the organic carrier gross weight 10%-20% of EM original solution described in accounting for；
Described organic carrier, to account for the percentages of the organic carrier gross weight being adsorbed with EM original solution, is the raw material by including Testa oryzae 70%-80%, clear water 8%-15%, brown sugar 1%-4%, bean cake 1%-2%, and blended → steam sterilization → cooling prepares；
Described organic carrier, several mixes including the one in Testa oryzae, starch, Semen Maydis powder, wheat bran or by therein；
The preparation method of EM microorganism formulation includes:
A, described in be adsorbed with the preparation of organic carrier of EM original solution: to need the percentages of the gross weight of the organic carrier being adsorbed with EM original solution of preparation, take Testa oryzae 70%-80%, clear water 8%-15%, brown sugar 1%-4%, bean cake 1%-2%, mix homogeneously, steam sterilization more than 100 DEG C, cooling, accesses commercially available EM original solution 10%-20%, then paves absorption 10-12 hour with the thickness of 5cm-10cm, finally at temperature is lower than 60 DEG C, it is dried to moisture content≤12%, standby；Made above obtain described in be adsorbed with the organic carrier of EM original solution, account for the 73%-90% of finished product gross weight；
B, described compound enzyme preparation: to account for the percentage calculation of finished product gross weight, weigh the pectase 1%-2% of the saccharifying enzyme 3%-8% of the cellulase 2%-6% of 30,000 u/g, 100,000 u/g, 50,000 u/g, mix homogeneously, standby；
C, described compound microelement preparation: to account for the percentage calculation of finished product gross weight, weigh ferrous sulfate 1%-5%, zinc sulfate 1%-5%, copper sulfate 1%-2%, manganese sulfate 1%-5%, mix homogeneously, standby；
D, above-mentioned A, B, C tri-kinds prepare material mixing, namely obtain finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325710.0A CN105772500A (en) | 2016-05-17 | 2016-05-17 | Remediation method for soil contaminated by heavy metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325710.0A CN105772500A (en) | 2016-05-17 | 2016-05-17 | Remediation method for soil contaminated by heavy metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105772500A true CN105772500A (en) | 2016-07-20 |
Family
ID=56378888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610325710.0A Pending CN105772500A (en) | 2016-05-17 | 2016-05-17 | Remediation method for soil contaminated by heavy metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105772500A (en) |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180177A (en) * | 2016-07-28 | 2016-12-07 | 赵月 | A kind of method repairing waters heavy metal pollution of soil |
| CN106391691A (en) * | 2016-08-31 | 2017-02-15 | 云南能投生态环境科技有限公司 | Method for efficiently remedying heavy-metal-contaminated soil |
| CN106635032A (en) * | 2016-11-28 | 2017-05-10 | 山西省水土保持科学研究所 | Heavy metal contaminated soil improver for coal mine and application method of heavy metal contaminated soil improver |
| CN106694532A (en) * | 2016-12-26 | 2017-05-24 | 湖南金旅环保股份有限公司 | Method for repairing cadmium-polluted farmland soil |
| CN107159709A (en) * | 2017-07-25 | 2017-09-15 | 中国地质科学院矿产综合利用研究所 | Method for repairing heavy metal contaminated soil by artificially enhancing self-cleaning effect of soil |
| CN107238695A (en) * | 2017-07-26 | 2017-10-10 | 中国科学院、水利部成都山地灾害与环境研究所 | A kind of soil runoff observation subdistrict construction |
| CN107484689A (en) * | 2017-10-09 | 2017-12-19 | 何锋 | Utilize the method for cray breeding way repairing polluted soil |
| CN107900094A (en) * | 2017-11-16 | 2018-04-13 | 湖南大学 | A kind of method with chemical leaching and passivating technique renovation of heavy metal polluted soil with combined |
| CN108080403A (en) * | 2017-12-04 | 2018-05-29 | 新乡学院 | A kind of restorative procedure of lead cadmium pollution soil |
| CN108372196A (en) * | 2018-02-09 | 2018-08-07 | 广州市怡地环保有限公司 | Heavy-metal contaminated soil restorative procedure |
| CN108480379A (en) * | 2018-03-19 | 2018-09-04 | 湖北娅安科技开发有限公司 | A kind of mercury or other heavy-metal contaminated soil renovation agents and preparation method thereof |
| CN108568448A (en) * | 2017-03-08 | 2018-09-25 | 武汉中地金盾环境科技有限公司 | A kind of vehicle-mounted heavy-metal contaminated soil movable type magnetic enrichment purification outfit |
| CN108941174A (en) * | 2018-07-10 | 2018-12-07 | 常州大学 | A kind of solid waste dismantling contaminated soil remediation device |
| CN109336345A (en) * | 2018-11-29 | 2019-02-15 | 福州宇澄环保工程设计有限公司 | A kind of black and odorous water bed mud biological modification agent |
| CN109337694A (en) * | 2018-11-22 | 2019-02-15 | 四川大学 | A kind of long-acting repair materials of pollution of vanadium soil in-situ |
| CN109807169A (en) * | 2019-03-08 | 2019-05-28 | 广东宜瑞环境科技有限公司 | A kind of restorative procedure of heavy-metal contaminated soil |
| CN110064648A (en) * | 2019-03-27 | 2019-07-30 | 中国矿业大学 | A kind of mixing cured device of heavy-metal contaminated soil dosing |
| CN110079328A (en) * | 2018-11-03 | 2019-08-02 | 河南碧海生物科技有限公司 | A kind of soil conditioner reducing soil chloride ion and Heavy Metal Pollution |
| CN110355192A (en) * | 2019-07-17 | 2019-10-22 | 包一鸣 | One kind being based on environmental protection heavy metal soil remediation method |
| CN110586642A (en) * | 2019-09-10 | 2019-12-20 | 铜仁市万山区植保植检站 | Method for repairing lead-cadmium contaminated soil |
| CN110756572A (en) * | 2019-11-01 | 2020-02-07 | 彭秋霞 | Sustainable soil remediation system and remediation method thereof |
| CN111701577A (en) * | 2020-06-23 | 2020-09-25 | 中关村思源生态健康技术应用研究所 | Soil heavy metal adsorbent based on waste green persimmons and preparation method thereof |
| CN111804726A (en) * | 2020-06-29 | 2020-10-23 | 深圳市中桦农业科研发展有限公司 | Soil remediation method, soil remediation organic mixture and processing system thereof |
| CN112828026A (en) * | 2019-11-25 | 2021-05-25 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Chromium-contaminated soil remediation method |
| CN112958619A (en) * | 2021-02-02 | 2021-06-15 | 辽宁工程技术大学 | Fermentation chemical remediation method and device for heavy metal polluted underground water |
| CN115647026A (en) * | 2022-10-18 | 2023-01-31 | 湖南省蔬菜研究所 | Method for in-situ remediation of heavy metal contaminated soil by crop interplanting |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101946872A (en) * | 2010-08-31 | 2011-01-19 | 广西皇氏甲天下乳业股份有限公司 | Silage EM (Effective Microorganisms) microbial agent added with enzyme and trace elements and preparation method thereof |
| CN103111463A (en) * | 2013-02-01 | 2013-05-22 | 深圳市先科环保有限公司 | Remediation method of heavy metal contaminated soil |
| CN103599922A (en) * | 2013-11-20 | 2014-02-26 | 厦门鹏原实业有限公司 | Soil heavy mental adsorbent |
| CN103952156A (en) * | 2014-03-27 | 2014-07-30 | 黎虹 | Heavy metal passivating agent, farmland purifying method and use thereof |
| CN104479702A (en) * | 2014-11-04 | 2015-04-01 | 周萍 | Method and container for preparing biological carbon |
| CN104560047A (en) * | 2014-12-03 | 2015-04-29 | 成都新朝阳作物科学有限公司 | Soil heavy mental passivator and application thereof |
| CN104592999A (en) * | 2015-01-12 | 2015-05-06 | 云南银发绿色环保产业股份有限公司 | Soil heavy metal stabilizer |
| CN104667884A (en) * | 2015-02-06 | 2015-06-03 | 浙江纺织服装职业技术学院 | Heavy metal ion absorbent based on biologic material and method for preparing heavy metal ion absorbent |
| CN104876769A (en) * | 2015-05-19 | 2015-09-02 | 潍坊绿威特生物工程有限公司 | Silicon-element alkaline fertilizer for improving soil acidification and preparation method of silicon-element alkaline fertilizer |
| CN105111020A (en) * | 2015-08-27 | 2015-12-02 | 江苏沃野生物科技发展有限公司 | Production technique of vegetable greenhouse soil acidification conditioner |
| CN105330475A (en) * | 2015-10-30 | 2016-02-17 | 马鞍山市心洲葡萄专业合作社 | Acidified soil restoration fertilizer |
| CN105441081A (en) * | 2015-12-14 | 2016-03-30 | 缪琼华 | Eluting solution capable of restoring heavy metal-contaminated soil |
-
2016
- 2016-05-17 CN CN201610325710.0A patent/CN105772500A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101946872A (en) * | 2010-08-31 | 2011-01-19 | 广西皇氏甲天下乳业股份有限公司 | Silage EM (Effective Microorganisms) microbial agent added with enzyme and trace elements and preparation method thereof |
| CN103111463A (en) * | 2013-02-01 | 2013-05-22 | 深圳市先科环保有限公司 | Remediation method of heavy metal contaminated soil |
| CN103599922A (en) * | 2013-11-20 | 2014-02-26 | 厦门鹏原实业有限公司 | Soil heavy mental adsorbent |
| CN103952156A (en) * | 2014-03-27 | 2014-07-30 | 黎虹 | Heavy metal passivating agent, farmland purifying method and use thereof |
| CN104479702A (en) * | 2014-11-04 | 2015-04-01 | 周萍 | Method and container for preparing biological carbon |
| CN104560047A (en) * | 2014-12-03 | 2015-04-29 | 成都新朝阳作物科学有限公司 | Soil heavy mental passivator and application thereof |
| CN104592999A (en) * | 2015-01-12 | 2015-05-06 | 云南银发绿色环保产业股份有限公司 | Soil heavy metal stabilizer |
| CN104667884A (en) * | 2015-02-06 | 2015-06-03 | 浙江纺织服装职业技术学院 | Heavy metal ion absorbent based on biologic material and method for preparing heavy metal ion absorbent |
| CN104876769A (en) * | 2015-05-19 | 2015-09-02 | 潍坊绿威特生物工程有限公司 | Silicon-element alkaline fertilizer for improving soil acidification and preparation method of silicon-element alkaline fertilizer |
| CN105111020A (en) * | 2015-08-27 | 2015-12-02 | 江苏沃野生物科技发展有限公司 | Production technique of vegetable greenhouse soil acidification conditioner |
| CN105330475A (en) * | 2015-10-30 | 2016-02-17 | 马鞍山市心洲葡萄专业合作社 | Acidified soil restoration fertilizer |
| CN105441081A (en) * | 2015-12-14 | 2016-03-30 | 缪琼华 | Eluting solution capable of restoring heavy metal-contaminated soil |
Cited By (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180177A (en) * | 2016-07-28 | 2016-12-07 | 赵月 | A kind of method repairing waters heavy metal pollution of soil |
| CN106391691A (en) * | 2016-08-31 | 2017-02-15 | 云南能投生态环境科技有限公司 | Method for efficiently remedying heavy-metal-contaminated soil |
| CN106635032A (en) * | 2016-11-28 | 2017-05-10 | 山西省水土保持科学研究所 | Heavy metal contaminated soil improver for coal mine and application method of heavy metal contaminated soil improver |
| CN106635032B (en) * | 2016-11-28 | 2019-02-15 | 山西省水土保持科学研究所 | A kind of coal mine heavy metal contaminated soil conditioner and its application method |
| CN106694532A (en) * | 2016-12-26 | 2017-05-24 | 湖南金旅环保股份有限公司 | Method for repairing cadmium-polluted farmland soil |
| CN108568448A (en) * | 2017-03-08 | 2018-09-25 | 武汉中地金盾环境科技有限公司 | A kind of vehicle-mounted heavy-metal contaminated soil movable type magnetic enrichment purification outfit |
| CN107159709A (en) * | 2017-07-25 | 2017-09-15 | 中国地质科学院矿产综合利用研究所 | Method for repairing heavy metal contaminated soil by artificially enhancing self-cleaning effect of soil |
| CN107238695A (en) * | 2017-07-26 | 2017-10-10 | 中国科学院、水利部成都山地灾害与环境研究所 | A kind of soil runoff observation subdistrict construction |
| CN107484689A (en) * | 2017-10-09 | 2017-12-19 | 何锋 | Utilize the method for cray breeding way repairing polluted soil |
| CN107484689B (en) * | 2017-10-09 | 2020-11-06 | 邓日表 | Method for restoring polluted soil by utilizing crayfish breeding mode |
| CN107900094A (en) * | 2017-11-16 | 2018-04-13 | 湖南大学 | A kind of method with chemical leaching and passivating technique renovation of heavy metal polluted soil with combined |
| CN108080403A (en) * | 2017-12-04 | 2018-05-29 | 新乡学院 | A kind of restorative procedure of lead cadmium pollution soil |
| CN108372196A (en) * | 2018-02-09 | 2018-08-07 | 广州市怡地环保有限公司 | Heavy-metal contaminated soil restorative procedure |
| CN108480379B (en) * | 2018-03-19 | 2021-07-13 | 山东省神农生态科技股份有限公司 | Mercury heavy metal contaminated soil remediation agent and preparation method thereof |
| CN108480379A (en) * | 2018-03-19 | 2018-09-04 | 湖北娅安科技开发有限公司 | A kind of mercury or other heavy-metal contaminated soil renovation agents and preparation method thereof |
| CN108941174A (en) * | 2018-07-10 | 2018-12-07 | 常州大学 | A kind of solid waste dismantling contaminated soil remediation device |
| CN110079328A (en) * | 2018-11-03 | 2019-08-02 | 河南碧海生物科技有限公司 | A kind of soil conditioner reducing soil chloride ion and Heavy Metal Pollution |
| CN109337694A (en) * | 2018-11-22 | 2019-02-15 | 四川大学 | A kind of long-acting repair materials of pollution of vanadium soil in-situ |
| CN109337694B (en) * | 2018-11-22 | 2021-02-23 | 四川大学 | In-situ long-acting repair material for vanadium-contaminated soil |
| CN109336345A (en) * | 2018-11-29 | 2019-02-15 | 福州宇澄环保工程设计有限公司 | A kind of black and odorous water bed mud biological modification agent |
| CN109807169A (en) * | 2019-03-08 | 2019-05-28 | 广东宜瑞环境科技有限公司 | A kind of restorative procedure of heavy-metal contaminated soil |
| CN110064648A (en) * | 2019-03-27 | 2019-07-30 | 中国矿业大学 | A kind of mixing cured device of heavy-metal contaminated soil dosing |
| CN110064648B (en) * | 2019-03-27 | 2021-05-07 | 中国矿业大学 | Heavy metal contaminated soil adds medicine and mixes solidification equipment |
| CN110355192A (en) * | 2019-07-17 | 2019-10-22 | 包一鸣 | One kind being based on environmental protection heavy metal soil remediation method |
| CN110355192B (en) * | 2019-07-17 | 2021-06-15 | 包一鸣 | Heavy metal soil remediation method based on environmental protection |
| CN110586642A (en) * | 2019-09-10 | 2019-12-20 | 铜仁市万山区植保植检站 | Method for repairing lead-cadmium contaminated soil |
| CN110586642B (en) * | 2019-09-10 | 2021-06-29 | 铜仁市万山区植保植检站 | Method for repairing lead-cadmium contaminated soil |
| CN110756572A (en) * | 2019-11-01 | 2020-02-07 | 彭秋霞 | Sustainable soil remediation system and remediation method thereof |
| CN112828026A (en) * | 2019-11-25 | 2021-05-25 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Chromium-contaminated soil remediation method |
| CN111701577A (en) * | 2020-06-23 | 2020-09-25 | 中关村思源生态健康技术应用研究所 | Soil heavy metal adsorbent based on waste green persimmons and preparation method thereof |
| CN111804726B (en) * | 2020-06-29 | 2021-06-04 | 深圳市中桦农业科研发展有限公司 | Soil remediation method, soil remediation organic mixture and processing system thereof |
| CN111804726A (en) * | 2020-06-29 | 2020-10-23 | 深圳市中桦农业科研发展有限公司 | Soil remediation method, soil remediation organic mixture and processing system thereof |
| CN112958619A (en) * | 2021-02-02 | 2021-06-15 | 辽宁工程技术大学 | Fermentation chemical remediation method and device for heavy metal polluted underground water |
| CN112958619B (en) * | 2021-02-02 | 2023-04-07 | 辽宁工程技术大学 | Fermentation chemical remediation method and device for heavy metal polluted underground water |
| CN115647026A (en) * | 2022-10-18 | 2023-01-31 | 湖南省蔬菜研究所 | Method for in-situ remediation of heavy metal contaminated soil by crop interplanting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105772500A (en) | Remediation method for soil contaminated by heavy metal | |
| CN105542775B (en) | A kind of passivator and its application for faintly acid cadmium pollution soil | |
| CN103788960B (en) | The multi-Functional Fertilizers of a kind of repairing heavy metal in soil and renovation agent | |
| CN101983952B (en) | Method for producing organic fertilizer by using municipal sewage sludge | |
| CN100369868C (en) | Refined fertilizer produced from sludge and producing method thereof | |
| CN102260104B (en) | Method for producing biological organic fertilizer by fermenting sludge | |
| CN1328228C (en) | Process for mfg. biological organic fertilizer by urban mud | |
| CN103708982B (en) | Organic-inorganic compound fertilizer capable of functionally improving soil and production method thereof | |
| CN106914484B (en) | Ecological restoration method for rural solid waste polluted soil | |
| CN107350281A (en) | One kind is applied to northern farmland soil of sewage irrigation area passivator and its application process | |
| NL2026659B1 (en) | Plant growth medium based on residue from high temperature thermal oxidation of oily solid wase | |
| CN106867545A (en) | A kind of saline-alkali soil restoration agent, preparation method and applications from sludge | |
| CN102010109A (en) | Application of bio-enzyme catalysis in residual sludge treatment | |
| CN104262046A (en) | Fertilizer for saline-alkali soil and preparation method of fertilizer | |
| CN107417374A (en) | Multifunction soil improver and preparation method thereof | |
| CN105753580A (en) | Ecological safe potato fertilizer formula | |
| CN104263374B (en) | A kind of soil heavy metal combined stabilizer and its application method | |
| CN111205877B (en) | Composite repairing agent for treating farmland cadmium-polluted soil and repairing method | |
| CN105198579A (en) | Method for utilizing sludge for producing nutrient soil and product | |
| CN101913924B (en) | Method for producing functional ecological compound organic fertilizer by using municipal sludge | |
| CN105601401A (en) | Tung cake fertilizer and preparation method thereof | |
| CN105103700A (en) | Method for improving saline-alkaline land soil | |
| CN102276368A (en) | Fermentation composite fertilizer suitable for greenhouse vegetable planting and preparation method thereof | |
| CN105061004A (en) | Preparation method for biological organic fertilizer | |
| CN112226234A (en) | Soil remediation agent for heavy metal pollution and preparation and use methods thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
|
| RJ01 | Rejection of invention patent application after publication |