CN106281344B - Soil remediation agent for eliminating harmful bacteria - Google Patents
Soil remediation agent for eliminating harmful bacteria Download PDFInfo
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- CN106281344B CN106281344B CN201610561697.9A CN201610561697A CN106281344B CN 106281344 B CN106281344 B CN 106281344B CN 201610561697 A CN201610561697 A CN 201610561697A CN 106281344 B CN106281344 B CN 106281344B
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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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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/40—Liliopsida [monocotyledons]
- A01N65/42—Aloeaceae [Aloe family] or Liliaceae [Lily family], e.g. aloe, veratrum, onion, garlic or chives
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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 soil repairing agent for eliminating harmful bacteria, which mainly comprises the following components: the repairing agent disclosed by the invention takes natural Chinese herbal medicines as main active ingredients, and is added with various additives with auxiliary effects, so that the repairing agent does not contain any ingredients which are difficult to degrade in soil, has an obvious repairing effect on harmful bacteria in soil, has no residual pollution to the environment after being used, does not produce adverse reactions on vegetation in the soil, has a good antibacterial effect on the growth of the vegetation in the soil, and has good application and popularization values.
Description
Technical Field
The invention belongs to the technical field of soil remediation, and particularly relates to a soil remediation agent for eliminating harmful bacteria.
Background
In recent years, with the deterioration of the whole ecological environment, the biological pollution in soil is more and more serious, however, the soil is a main growth source of human food, and the quality of the food is greatly influenced by the increase of the pollution degree, so the biological pollution in soil is one of the key points of environmental protection treatment, and the biological pollution in soil refers to the phenomenon that pathogens and harmful organism populations with diseases and the like invade the soil from the outside, destroy the balance of the soil ecosystem, and cause the quality reduction of the soil. The source of the harmful biological population is the fertilization of untreated human and animal excreta, domestic sewage, garbage, hospital sewage containing pathogens and industrial wastewater, improper treatment of diseased animal corpses and the like. The soil containing a large amount of infectious bacteria, viruses and eggs carries human soil through the main way to cause various bacterial pathogen diseases of plants, so that the human body suffers from various bacterial and viral diseases and threatens the survival of the human body.
The harm to human health is more serious after the soil is polluted by infectious bacteria and viruses. Pathogenic bacteria, which are generally derived from feces and municipal sewage, belong to: salmonella, Shigella, Bacillus, Bacteroides, Clostridium, Pseudomonas, Pythium, Streptococcus, Mycobacterium, and the like. In addition, there are also pathogenic bacteria of anthrax, tetanus, malignant edema, erysipelas, and the like, which are transmitted to a human body as excreta, secretions, or corpses of diseased animals enter the soil. There are over 100 kinds of viruses that may cause human diseases, such as poliovirus, human enterocytopathic orphan virus, coxsackievirus, etc., found in soil. The most dangerous of these are the infectious hepatitis viruses. The plant viruses of soil infection include tobacco mosaic virus, tobacco necrosis virus, wheat mosaic virus, lettuce vein virus, etc.
At present, harmful bacteria in soil are repaired by mainly changing the physicochemical property and the moisture condition of the soil to control the propagation of pathogenic microorganisms, strengthening ground surface coverage to inhibit dust emission and cutting off the air propagation path of pathogenic bacteria, and can also be directly applied to the soil for sterilization and disinfection.
Disclosure of Invention
The invention aims to provide a soil remediation agent which is good in sterilization effect, environment-friendly and pollution-free and mainly comprises natural Chinese herbal medicine components.
The technical scheme of the invention is as follows:
a soil repairing agent for eliminating harmful bacteria, which mainly comprises the following components by weight: 5-15% of Chinese tallow tree, 4-8% of sargentgloryvine stem, 3-6% of celandine, 2-5% of garlic extract, 3-5% of synergist, 1.5-3.5% of surfactant, 5-15% of organic solvent, 5-10% of emulsifier and the balance of water.
Further, the garlic extract is allicin, and the preparation method comprises the following steps: peeling unpicked garlic, mashing, adding 55-65% ethanol solution 4-6 times the weight of garlic, extracting with ultrasonic wave at 35-45 deg.C for 10-15min, filtering, concentrating under reduced pressure to recover ethanol to obtain garlic extractive solution, drying at low temperature under vacuum in a distiller (continuous vacuum distillation device) at 40 + -2 deg.C for 5-8 hr until the measured water content is less than or equal to 3%, allicin has antibacterial effect against Streptococcus, Cryptococcus and Trichophyton mentagrophytes, and can be used as plant repairing agent.
Further, the synergist mainly comprises: 5-10 parts of synergistic amine, 4-6 parts of calcium superphosphate, 1-3 parts of potassium nitrate, 1-2 parts of polyacrylamide and 20-40 parts of polypeptide liquid, and the preparation method comprises the following steps: adding the polypeptide liquid with the weight components into a reaction kettle, heating to 50-55 ℃, adding calcium superphosphate, uniformly stirring, fully dissolving, heating to 80-85 ℃, adding potassium nitrate and polyacrylamide under stirring, cooling to 35-45 ℃, adding synergistic amine, uniformly stirring, cooling to room temperature, and stirring for 30 minutes to obtain the synergist.
Further, the surfactant is one or a mixture of more of natural coconut oil fatty alcohol ether sodium sulfate, fatty alcohol ether sodium sulfosuccinate and lauryl alcohol polyoxyethylene ether.
Further, the organic solvent is one or a mixture of several of ethanol, methanol and acetone.
Further, the emulsifier is one or a mixture of more of calcium dodecyl benzene sulfonate, styryl phenol polyoxyethylene ether, nonylphenol polyoxyethylene ether and fatty acid polyoxyethylene ester.
A soil remediation agent for eliminating harmful bacteria is prepared by the following steps:
(1) extracting effective components of Chinese herbal medicines: mixing Chinese tallow tree, sargentgloryvine stem and celandine according to the weight ratio, crushing, adding 8-12 times of water, heating to 100 ℃, decocting for 2 hours, extracting decoction, filtering, extracting filter residues for 2 times according to the operation, then combining 3 times of extracting solution, decompressing, concentrating and evaporating the extracting solution until the water content is 1.05-1.15, performing spray drying by using a spray drying tower to prepare extract powder, and sieving by using a 100-mesh sieve to obtain the effective component mixture of the three Chinese herbal medicine extracts;
(2) adding the polypeptide liquid with the weight components into a reaction kettle, heating to 50-55 ℃, adding calcium superphosphate, uniformly stirring, fully dissolving, heating to 80-85 ℃, adding potassium nitrate and polyacrylamide under stirring, cooling to 35-45 ℃, adding synergistic amine, uniformly stirring, cooling to room temperature, and stirring for 30 minutes to obtain the synergistic agent;
(3) preparing a soil repairing agent: mixing the Chinese herbal medicine extract obtained in the step (1) with the garlic extract in the weight proportion, adding the organic solvent in the weight proportion, heating to 60-80 ℃, fully dissolving, filtering to obtain a dissolved solution, adding the synergist, the surfactant and the emulsifier in the weight proportion, and adding the dissolved solution into a water agent to obtain the soil remediation agent for eliminating harmful bacteria.
The use method of the soil remediation agent comprises the following steps: loosening soil with a rotary cultivator, spraying water to the soil to keep the humidity at 50-70%, diluting the raw medicinal materials with water to active ingredient concentration of 30-50ppm, and uniformly spraying on the soil surface for 20 days to achieve soil remediation effect.
Compared with the prior art, the soil remediation agent has the advantages that natural Chinese herbal medicines are used as main active ingredients, various additives with auxiliary effects are added, any ingredients which are difficult to degrade in soil are not contained, the remediation effect on harmful bacteria in soil is remarkable, the photostability is improved, the lasting period is appropriate, the application frequency and the control cost can be reduced, no residual pollution is caused to the environment after use, no adverse reaction is caused to vegetation in the soil, meanwhile, the soil remediation agent also has a good antibacterial effect on the growth of the vegetation in the soil, and the soil remediation agent has good application and popularization values.
Detailed Description
Example 1:
a soil repairing agent for eliminating harmful bacteria, which mainly comprises the following components by weight: 5% of Chinese tallow tree, 4% of sargentgloryvine stem, 3% of celandine, 2% of garlic extract, 3% of synergist, 1.5% of surfactant, 5% of organic solvent, 5% of emulsifier and the balance of water.
Wherein the garlic extract is allicin, and the preparation method comprises the following steps: peeling undooved garlic, mashing, adding 55% ethanol solution 4 times the weight of garlic, extracting with ultrasonic wave at 35 deg.C for 10min, filtering, concentrating under reduced pressure to recover ethanol to obtain garlic extractive solution, drying at low temperature in a distiller under vacuum condition, wherein the distiller is a continuous vacuum distillation device, and can be used for reducing distillation temperature and improving separation efficiency under reduced pressure to deeply purify allicin in the extractive solution, boiling compound when the pressure is reduced to vapor pressure of the compound, promoting decomposition, drying at 38 deg.C for 5 hr until the measured water content is less than or equal to 3%, and obtaining yellow oily liquid as allicin with antibacterial effects against Streptococcus, Cryptococcus and Trichophyton mentagrophytes, can be used as a plant repairing agent. The synergist mainly comprises: 5 parts of synergistic amine, 4 parts of calcium superphosphate, 1 part of potassium nitrate, 1 part of polyacrylamide and 20 parts of polypeptide liquid, wherein the preparation method comprises the following steps: adding the polypeptide liquid with the weight components into a reaction kettle, heating to 50 ℃, adding calcium superphosphate, uniformly stirring, fully dissolving, heating to 80 ℃, adding potassium nitrate and polyacrylamide under stirring, cooling to 35 ℃, adding synergistic amine, uniformly stirring, cooling to room temperature, and stirring for 30 minutes to obtain the synergist. The surfactant is natural coconut oil fatty alcohol ether sodium sulfate. The organic solvent is ethanol. The emulsifier is calcium dodecyl benzene sulfonate.
A soil remediation agent for eliminating harmful bacteria is prepared by the following steps:
(1) extracting effective components of Chinese herbal medicines: mixing Chinese tallow tree, sargentgloryvine stem and celandine according to the weight ratio, crushing, adding 8 times of water, heating to 100 ℃, decocting for 2 hours, extracting decoction, filtering, extracting filter residues for 2 times according to the operation, then combining the extracting solutions for 3 times, concentrating the extracting solution under reduced pressure, evaporating water to obtain an extract with the specific gravity d being 1.05, performing spray drying by using a spray drying tower to prepare extract powder, and sieving by using a 100-mesh sieve to obtain an effective component mixture of the three Chinese herbal medicine extracts;
(2) adding the polypeptide liquid with the weight components into a reaction kettle, heating to 50 ℃, adding calcium superphosphate, uniformly stirring, fully dissolving, heating to 80 ℃, adding potassium nitrate and polyacrylamide under stirring, cooling to 35 ℃, adding synergistic amine, uniformly stirring, cooling to room temperature, and stirring for 30 minutes to obtain the synergistic agent;
(3) preparing a soil repairing agent: mixing the Chinese herbal medicine extract obtained in the step (1) with the garlic extract in the weight proportion, adding the organic solvent in the weight proportion, heating to 60 ℃, fully dissolving, filtering to obtain a dissolved solution, adding the synergist, the surfactant and the emulsifier in the weight proportion, and adding the dissolved solution into the solution to obtain the soil remediation agent for eliminating harmful bacteria.
Example 2:
a soil repairing agent for eliminating harmful bacteria, which mainly comprises the following components by weight: 10% of Chinese tallow tree, 6% of sargentgloryvine stem, 4.5% of celandine, 3% of garlic extract, 4% of synergist, 2.5% of surfactant, 10% of organic solvent, 7.5% of emulsifier and the balance of water.
Wherein the garlic extract is allicin, and the preparation method comprises the following steps: peeling undooved garlic, mashing, adding an ethanol solution with the mass concentration of 60% and the mass of 5 times of the garlic, extracting for 12.5min by using ultrasonic waves, the extraction temperature is 40 ℃, filtering, concentrating under reduced pressure, recovering ethanol to obtain a garlic extract, then putting the extract into a distiller, and drying at low temperature under vacuum, wherein the distiller is a continuous vacuum distillation device, and can well reduce the distillation temperature and improve the separation efficiency under the reduced pressure condition, so that the allicin can be deeply purified in the extract, when the pressure is reduced to the vapor pressure of a compound, the compound starts to boil, the distillation effect can be carried out, the decomposition is promoted, the drying temperature is 40 ℃, the drying time is 6.5h, the measured moisture content is less than or equal to 3%, and the obtained yellow oily liquid is allicin which has the antibacterial effects of resisting streptococcus, cryptococcus and trichophyton, can be used as a plant repairing agent. The synergist mainly comprises: 7.5 parts of synergistic amine, 5 parts of calcium superphosphate, 2 parts of potassium nitrate, 1.5 parts of polyacrylamide and 30 parts of polypeptide liquid, wherein the preparation method comprises the following steps: adding the polypeptide liquid with the weight components into a reaction kettle, heating to 52.5 ℃, adding calcium superphosphate, uniformly stirring, fully dissolving, heating to 82.5 ℃, adding potassium nitrate and polyacrylamide under stirring, cooling to 40 ℃, adding synergistic amine, uniformly stirring, cooling to room temperature, and stirring for 30 minutes to obtain the synergist. The surfactant is fatty alcohol ether sodium sulfosuccinate. The organic solvent is methanol. The emulsifier is styryl phenol polyoxyethylene ether.
A soil remediation agent for eliminating harmful bacteria is prepared by the following steps:
(1) extracting effective components of Chinese herbal medicines: mixing Chinese tallow tree, sargentgloryvine stem and celandine according to the weight ratio, crushing, adding 10 times of water, heating to 100 ℃, decocting for 2 hours, extracting decoction, filtering, extracting filter residues for 2 times according to the operation, then combining the extracting solutions for 3 times, concentrating the extracting solution under reduced pressure, evaporating water to obtain an extract with the specific gravity d being 1.1, performing spray drying by using a spray drying tower to prepare extract powder, and sieving by using a 100-mesh sieve to obtain an effective component mixture of the three Chinese herbal medicine extracts;
(2) adding the polypeptide liquid with the weight components into a reaction kettle, heating to 52.5 ℃, adding calcium superphosphate, uniformly stirring, fully dissolving, heating to 82.5 ℃, adding potassium nitrate and polyacrylamide under stirring, cooling to 40 ℃, adding synergistic amine, uniformly stirring, cooling to room temperature, and stirring for 30 minutes to obtain the synergistic agent;
(3) preparing a soil repairing agent: mixing the Chinese herbal medicine extract obtained in the step (1) with the garlic extract in the weight proportion, adding the organic solvent in the weight proportion, heating to 70 ℃, fully dissolving, filtering to obtain a dissolved solution, adding the synergist, the surfactant and the emulsifier in the weight proportion, and adding the dissolved solution into the solution to obtain the soil remediation agent for eliminating harmful bacteria.
Example 3:
a soil repairing agent for eliminating harmful bacteria, which mainly comprises the following components by weight: 15% of Chinese tallow tree, 8% of sargentgloryvine stem, 6% of celandine, 5% of garlic extract, 5% of synergist, 3.5% of surfactant, 15% of organic solvent, 10% of emulsifier and the balance of water.
Wherein the garlic extract is allicin, and the preparation method comprises the following steps: peeling undooved garlic, mashing, adding 65 mass concentration ethanol solution 6 times of the weight of the garlic, extracting for 15min by using ultrasonic waves, extracting at 45 ℃, filtering, concentrating under reduced pressure to recover ethanol to obtain garlic extract, then putting the extract into a distiller, and drying at low temperature under vacuum condition, wherein the distiller is a continuous vacuum distillation device, under reduced pressure, the distillation temperature can be well reduced, the separation efficiency is improved, the allicin can be deeply purified in the extract, when the pressure is reduced to the vapor pressure of a compound, the compound starts to boil, the distillation effect can be carried out, the decomposition is promoted, the drying temperature is 42 ℃, the drying time is 8h, the measured moisture content is less than or equal to 3%, the obtained yellow oily liquid is allicin, and the allicin has antibacterial effects of resisting streptococcus, cryptococcus and trichophyton, can be used as a plant repairing agent. The synergist mainly comprises: 10 parts of synergistic amine, 6 parts of calcium superphosphate, 3 parts of potassium nitrate, 2 parts of polyacrylamide and 40 parts of polypeptide liquid, wherein the preparation method comprises the following steps: adding the polypeptide liquid with the weight components into a reaction kettle, heating to 55 ℃, adding calcium superphosphate, uniformly stirring, fully dissolving, heating to 85 ℃, adding potassium nitrate and polyacrylamide under stirring, cooling to 45 ℃, adding synergistic amine, uniformly stirring, cooling to room temperature, and stirring for 30 minutes to obtain the synergist. The surfactant is polyoxyethylene lauryl ether. The organic solvent is acetone. The emulsifier is nonylphenol polyoxyethylene ether.
A soil remediation agent for eliminating harmful bacteria is prepared by the following steps:
(1) extracting effective components of Chinese herbal medicines: mixing Chinese tallow tree, sargentgloryvine stem and celandine according to the weight ratio, crushing, adding 12 times of water, heating to 100 ℃, decocting for 2 hours, extracting decoction, filtering, extracting filter residues for 2 times according to the operation, then combining the extracting solutions for 3 times, concentrating the extracting solution under reduced pressure, evaporating water to obtain an extract with the specific gravity d being 1.15, performing spray drying by using a spray drying tower to prepare extract powder, and sieving by using a 100-mesh sieve to obtain an effective component mixture of the three Chinese herbal medicine extracts;
(2) adding the polypeptide liquid with the weight components into a reaction kettle, heating to 55 ℃, adding calcium superphosphate, uniformly stirring, fully dissolving, heating to 85 ℃, adding potassium nitrate and polyacrylamide under stirring, cooling to 45 ℃, adding synergistic amine, uniformly stirring, cooling to room temperature, and stirring for 30 minutes to obtain the synergistic agent;
(3) preparing a soil repairing agent: mixing the Chinese herbal medicine extract obtained in the step (1) with the garlic extract in the weight proportion, adding the organic solvent in the weight proportion, heating to 80 ℃, fully dissolving, filtering to obtain a dissolved solution, adding the synergist, the surfactant and the emulsifier in the weight proportion, and adding the dissolved solution into the solution to obtain the soil remediation agent for eliminating harmful bacteria.
Specific tests prove that:
1. subject: four wheat test fields containing harmful bacteria are respectively taken, wherein the wheat test fields contain various pollution germs, such as salmonella, shigella, bacillus, bacteroides, clostridium, pseudomonas, rhizopus, streptococcus, mycobacterium and the like, and are divided into three test fields and one control field, each test field has the area of 16 square meters, and the content of the harmful bacteria and the environment of the test fields are not different and have comparability.
2. The experimental method comprises the following steps: respectively using the soil remediation agents prepared in the examples 1, 2 and 3 to three groups of test fields, loosening soil by using a rotary cultivator, firstly sprinkling water to the soil to keep the humidity of the soil at 50-70%, adding water to dilute the raw medicinal materials until the concentration of active ingredients is 30-50ppm, uniformly sprinkling the water to the soil surface, and planting wheat after 20 days; the control field is not treated at all, and the wheat is directly planted; the wheat planting density and variety of all test fields are the same and have no obvious difference, and the growth conditions of the wheat of all test fields are observed and recorded.
3. And (3) experimental data statistics:
4. the experimental results are as follows: as can be seen from the above table, the soil remediation agent prepared by the embodiment of the invention shows better remediation effect in field tests of crops, compared with a control field, the growth speed of plants is high, no diseases appear, and the control field does not carry out any remediation treatment, so that the growth rate of the plants is low, the growth speed is slow, and scab appears, therefore, the soil remediation agent prepared by the invention has obvious effect and great application and popularization value.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (1)
1. A soil repairing agent for eliminating harmful bacteria is characterized by mainly comprising the following components in parts by weight: 5-15% of Chinese tallow tree, 4-8% of sargentgloryvine stem, 3-6% of celandine, 2-5% of garlic extract, 3-5% of synergist, 1.5-3.5% of surfactant, 5-15% of organic solvent, 5-10% of emulsifier and the balance of water;
the garlic extract is allicin, and the preparation method comprises the following steps: peeling unpicked garlic, mashing, adding 55-65% ethanol solution 4-6 times the weight of garlic, extracting with ultrasonic wave at 35-45 deg.C for 10-15min, filtering, concentrating under reduced pressure to recover ethanol to obtain garlic extractive solution, drying at low temperature under vacuum in a distiller (continuous vacuum distillation device) at 40 + -2 deg.C for 5-8 hr until the measured water content is less than or equal to 3%, allicin has antibacterial effect against Streptococcus, Cryptococcus and Trichophyton mentagrophytes, and can be used as plant repairing agent;
the synergist mainly comprises: 5-10 parts of synergistic amine, 4-6 parts of calcium superphosphate, 1-3 parts of potassium nitrate, 1-2 parts of polyacrylamide and 20-40 parts of polypeptide liquid, and the preparation method comprises the following steps: adding the polypeptide liquid with the weight components into a reaction kettle, heating to 50-55 ℃, adding calcium superphosphate, uniformly stirring, fully dissolving, heating to 80-85 ℃, adding potassium nitrate and polyacrylamide under stirring, cooling to 35-45 ℃, adding synergistic amine, uniformly stirring, cooling to room temperature, and stirring for 30 minutes to obtain the synergist, wherein the synergist has high purity and good effect, can decompose residual pesticides, nitrates and agrochemicals to improve the soil environment, purify and repair the soil, enhance the killing effect of the soil remediation agent on harmful bacteria, improve the ecological environment of the soil, decompose organic matters to improve the organic matter content of the soil, break and remove hardening, improve the physical and chemical shape of the matters, enrich the soil fertility, enable lean fields to become fertile soil, and improve the sustainable production capacity of the soil;
the surfactant is one or a mixture of more of natural coconut oil fatty alcohol ether sodium sulfate, fatty alcohol ether sodium sulfosuccinate and lauryl alcohol polyoxyethylene ether;
the organic solvent is one or a mixture of ethanol, methanol and acetone;
the emulsifier is one or a mixture of more of calcium dodecyl benzene sulfonate, styryl phenol polyoxyethylene ether, nonylphenol polyoxyethylene ether and fatty acid polyoxyethylene ester;
the preparation method of the soil remediation agent comprises the following steps:
(1) extracting effective components of Chinese herbal medicines: mixing Chinese tallow tree, sargentgloryvine stem and celandine according to the weight ratio, crushing, adding 8-12 times of water, heating to 100 ℃, decocting for 2 hours, extracting decoction, filtering, extracting filter residues for 2 times according to the operation, then combining 3 times of extracting solution, decompressing, concentrating and evaporating the extracting solution until the water content is 1.05-1.15, performing spray drying by using a spray drying tower to prepare extract powder, and sieving by using a 100-mesh sieve to obtain the effective component mixture of the three Chinese herbal medicine extracts;
(2) preparing a synergist: adding the polypeptide liquid with the weight components into a reaction kettle, heating to 50-55 ℃, adding calcium superphosphate, uniformly stirring, fully dissolving, heating to 80-85 ℃, adding potassium nitrate and polyacrylamide under stirring, cooling to 35-45 ℃, adding synergistic amine, uniformly stirring, cooling to room temperature, and stirring for 30 minutes to obtain the synergistic agent;
(3) preparing a soil repairing agent: mixing the Chinese herbal medicine extract obtained in the step (1) with the garlic extract in the weight proportion, adding the organic solvent in the weight proportion, heating to 60-80 ℃, fully dissolving, filtering to obtain a dissolved solution, adding the synergist, the surfactant and the emulsifier in the weight proportion, and preparing the dissolved solution into a water agent to obtain the soil remediation agent for eliminating harmful bacteria;
the using method of the soil remediation agent comprises the following steps: loosening soil with a rotary cultivator, spraying water to the soil to keep the humidity at 50-70%, diluting the raw medicinal materials with water to active ingredient concentration of 30-50ppm, and uniformly spraying on the soil surface for 20 days to achieve soil remediation effect.
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| EP0578878A1 (en) * | 1991-08-08 | 1994-01-19 | Godrej Soaps Limited | Neem oil fatty acid distillation residue based pesticide |
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