CN112080281B - Soil conditioner for landscaping and preparation method thereof - Google Patents

Soil conditioner for landscaping and preparation method thereof Download PDF

Info

Publication number
CN112080281B
CN112080281B CN202010901763.9A CN202010901763A CN112080281B CN 112080281 B CN112080281 B CN 112080281B CN 202010901763 A CN202010901763 A CN 202010901763A CN 112080281 B CN112080281 B CN 112080281B
Authority
CN
China
Prior art keywords
stirring
landscaping
soil conditioner
montmorillonite
pretreated
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.)
Active
Application number
CN202010901763.9A
Other languages
Chinese (zh)
Other versions
CN112080281A (en
Inventor
张书军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Shanhu Ecological Construction Co.,Ltd.
Original Assignee
Anhui Shanhu Ecological Construction Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Shanhu Ecological Construction Co ltd filed Critical Anhui Shanhu Ecological Construction Co ltd
Priority to CN202010901763.9A priority Critical patent/CN112080281B/en
Publication of CN112080281A publication Critical patent/CN112080281A/en
Application granted granted Critical
Publication of CN112080281B publication Critical patent/CN112080281B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52—Amides or imides
    • C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/56—Acrylamide; Methacrylamide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cultivation Of Plants (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention discloses a preparation method of a soil conditioner for landscaping, which comprises the following steps: mixing the paper mulberry powder and a phosphoric acid solution, adding disproportionated rosin, uniformly stirring, carrying out extrusion forming, activating at high temperature, washing and drying to obtain pretreated paper mulberry powder; stirring montmorillonite and polar solvent, adding zinc dicarboxylate under stirring, continuously stirring, filtering, drying, pulverizing, calcining at 200-300 deg.C for 1-2h, and pulverizing to obtain pretreated montmorillonite; adding water into pretreated paper mulberry powder, adding pretreated montmorillonite under stirring, performing ultrasonic treatment, sequentially adding acrylamide, N' -methylene bisacrylamide, foaming agent and dispersing agent under stirring, stirring to fully foam, adding initiator, and stirring uniformly to obtain a compound material; and feeding the compound material into a forming die, adjusting the temperature to 70-80 ℃, preserving heat for 1-2h, performing irradiation treatment, then performing staged temperature rise and preservation, cooling along with a furnace, and crushing to obtain the soil conditioner for landscaping.

Description

Soil conditioner for landscaping and preparation method thereof
Technical Field
The invention relates to the technical field of landscaping, in particular to a soil conditioner for landscaping and a preparation method thereof.
Background
With the rapid development of global economy, pollutants containing heavy metals enter garden soil through various ways such as irrigation, dry-wet sedimentation and the like to cause heavy metal enrichment in gardens, the soil is one of four major elements of the environment and has irreplaceable effects in a natural ecosystem, with the development of industrialization, urbanization and high intensification of agriculture, more and more garden soil is reduced in quality due to pollution caused by heavy metal chemicals and the like, so that the ecological environment is seriously affected, the heavy metal pollution not only affects the quality of garden plants, but also relates to the quality of atmosphere and water environment, and the life and health of animals and human beings can be harmed through a food chain.
Soil pollution not only changes the physicochemical properties of soil and deteriorates the soil, but also pollutants block or inhibit the regional composition and life activities of soil microorganisms, influence the transformation and energy exchange of soil nutrients, reduce or lose the capacity of the soil, cause the destruction of soil resources and deteriorate or interrupt the garden ecological environment circulation system.
The existing traditional modifier mainly comprises minerals, phosphates, alkaline substances, sulfides, biochar and the like, is large in dosage, weak in interaction between the soil modifier and heavy metal ions, and in the actual soil repairing process, rainfall and other conditions can occur, so that the modifier is promoted to migrate, the expected repairing effect is hardly exerted, the repairing effect can be ensured only by generally putting in the modifier for many times, and secondary pollution can be caused, so that the problem is urgently solved.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a soil conditioner for landscaping and a preparation method thereof.
The invention provides a preparation method of a soil conditioner for landscaping, which comprises the following steps:
s1, mixing the paper mulberry powder and a phosphoric acid solution, adjusting the temperature to 60-70 ℃, stirring for 40-50min, adding disproportionated rosin, stirring uniformly, extruding and molding, activating for 20-40min at 620-680 ℃, washing and drying to obtain pretreated paper mulberry powder;
s2, stirring montmorillonite and polar solvent for 20-40min at 50-70 ℃, adding zinc dicarboxylate under stirring, continuing stirring for 1-2h, filtering, drying, crushing, calcining at 200-300 ℃ for 1-2h, and crushing to obtain pretreated montmorillonite;
s3, adding water into the pretreated paper mulberry powder, adding pretreated montmorillonite under stirring, performing ultrasonic treatment for 20-40min at an ultrasonic frequency of 15-20kHz, sequentially adding acrylamide, N' -methylene-bisacrylamide, a foaming agent and a dispersing agent under stirring, stirring to fully foam, adding an initiator, and uniformly stirring at 30-35 ℃ to obtain a compound material;
s4, feeding the compound material into a forming die, adjusting the temperature to 70-80 ℃, preserving heat for 1-2h, irradiating for 5-10min by using a high-energy electron beam, feeding the obtained blank into a calcining furnace, heating from room temperature to 180-class 220 ℃, preserving heat for 20-30min, then heating to 340-class 400 ℃, preserving heat for 5-15min, cooling along with the furnace, and crushing to obtain the soil conditioner for landscaping.
Preferably, in S1, the mass fraction of the phosphoric acid solution is 50-55%, and the mass ratio of the broussonetia papyrifera powder, the phosphoric acid solution and the disproportionated rosin is 10-15: 40-80: 2-6.
Preferably, in S1, after activation, ethanol and water are used in this order for washing.
Preferably, in S2, the polar solvent is at least one of water, formamide, dimethylformamide, methanol, ethanol, acetic acid, isopropanol, and tetramethylethylenediamine.
Preferably, in S2, the mass ratio of montmorillonite, polar solvent and zinc dicarboxylate is 20-30: 60-100: 1-2.
Preferably, in S3, the mass ratio of the pretreated paper mulberry powder, the pretreated montmorillonite, the acrylamide, the N, N' -methylene bisacrylamide, the foaming agent, the dispersing agent and the initiator is 20-26: 35-40: 2-4: 0.1-0.15: 0.1-0.2: 0.1-0.2: 0.1-0.15.
Preferably, the foaming agent is lauryl sulfate TEA salt.
Preferably, the dispersant is a polyacrylic acid ammonium salt.
Preferably, the initiator is ammonium persulfate.
Preferably, in S4, the high-energy electron beam irradiation dose is 10 kGy.
Preferably, in S4, the obtained blank is sent into a calcining furnace, heated from room temperature to 220 ℃ at the speed of 1-2 ℃/min, and then is preserved for 20-30min, and heated from 3-5 ℃/min to 400 ℃ at the speed of 340 ℃ and then is preserved for 5-15 min.
A soil conditioner for landscaping is prepared by the preparation method of the soil conditioner for landscaping.
Preferably, it is a circular honeycomb structure with a diameter of 1-3mm and an internal honeycomb pore size of 20-100 μm.
The using method of the invention is as follows: the soil conditioner for landscaping is uniformly spread on the surface of garden soil, the using amount of the soil conditioner is 20 kg/mu, and then the soil conditioner is planted.
The technical effects of the invention are as follows:
in the S1, the paper mulberry powder is added into phosphoric acid solution with the mass fraction of 50-55%, and is matched with disproportionated rosin for treatment at the temperature of 60-70 ℃, so that the formed carbon pores have moderate aperture, montmorillonite is easier to pre-treat for adhesion and adsorption, collapse is not easy to occur, and the compressive strength of the product is high; in S2, zinc dicarboxylate is adopted to intercalate montmorillonite, the interlayer spacing and the specific surface area of montmorillonite are increased firstly, the montmorillonite is subjected to ultrasonic treatment after calcination and is fully adsorbed in pretreated paper mulberry powder and is uniformly embedded in a polymer chain to form a product with a regular structure, lauryl sulfate TEA salt is matched to foam in the montmorillonite, the montmorillonite is irradiated and then calcined, the foam is uniformly broken, gaps are formed at the positions, and a honeycomb-shaped multi-level porous network structure is formed, so that the montmorillonite composite material has high adsorption and chelation capacity on heavy metals, is good in acid-base stability and good in migration resistance, and particularly has excellent ion barrier effect and filtering ion effect on heavy metals in molecules due to the multi-level network structure in a chelation process.
The soil conditioner obtained by the invention utilizes the adsorption and chelation effects to fix heavy metal ions in garden soil, has strong adsorption and fixation capabilities, and can effectively prevent the heavy metal ions from migrating through eluviation, and is convenient to adhere more soil remediation microbial flora and continuously restore soil after being put into the soil due to large specific surface area, and the soil conditioner can not be decomposed under the action of water along with the lapse of time, so that multiple times of putting are not needed, and manpower and material resources are saved.
The invention can meet the long-term safety requirement of garden soil, has mild reaction conditions, is beneficial to large-scale preparation method, and has wide prospect when being applied to the field of heavy metal soil remediation.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
A preparation method of a soil conditioner for landscaping comprises the following steps:
s1, mixing 10kg of broussonetia papyrifera powder and 80kg of phosphoric acid solution with the mass fraction of 50%, adjusting the temperature to 70 ℃, stirring for 40min at the stirring speed of 100r/min, adding 2kg of disproportionated rosin, stirring uniformly, extruding and forming, then sending into a calcining furnace, activating for 20min at 680 ℃, sequentially washing with ethanol and water, and drying to obtain pretreated broussonetia papyrifera powder;
s2, stirring 30kg of montmorillonite and 60kg of formamide for 40min at the stirring temperature of 50 ℃ and the stirring speed of 2000r/min, adding 1kg of zinc dicarboxylate under stirring, continuing stirring for 2h, filtering, drying, crushing, calcining at 200 ℃ for 2h, and crushing to obtain pretreated montmorillonite;
s3, adding 50kg of water into 20kg of pretreated paper mulberry powder, adding 35kg of pretreated montmorillonite under stirring, carrying out ultrasonic treatment for 40min at the ultrasonic frequency of 15kHz, sequentially adding 4kg of acrylamide, 0.1kg of N, N' -methylene bisacrylamide, 0.2kg of lauryl alcohol sulfate TEA salt and 0.1kg of ammonium polyacrylate under stirring, stirring until the mixture is fully foamed, adding 0.15kg of ammonium persulfate, and uniformly stirring at 30 ℃ to obtain a compound material;
s4, feeding the compound material into a forming die, adjusting the temperature to 80 ℃, preserving the temperature for 1h, and then irradiating for 10min by using a high-energy electron beam, wherein the irradiation dose is 10 kGy; and (3) feeding the obtained green body into a calcining furnace, heating to 220 ℃ from room temperature at the speed of 1 ℃/min, preserving heat for 20min, heating to 340 ℃ at the speed of 5 ℃/min, preserving heat for 15min, cooling along with the furnace, and crushing to obtain the soil conditioner for landscaping.
Example 2
A preparation method of a soil conditioner for landscaping comprises the following steps:
s1, mixing 15kg of the broussonetia papyrifera powder with 40kg of phosphoric acid solution with the mass fraction of 55%, adjusting the temperature to 60 ℃, stirring for 50min at the stirring speed of 60r/min, adding 6kg of disproportionated rosin, stirring uniformly, extruding and forming, sending into a calcining furnace, activating for 40min at 620 ℃, sequentially washing with ethanol and water, and drying to obtain pretreated broussonetia papyrifera powder;
s2, stirring 20kg of montmorillonite and 100kg of ethanol for 20min at the stirring temperature of 70 ℃ and the stirring speed of 1000r/min, adding 2kg of zinc dicarboxylate under stirring, continuing stirring for 1h, filtering, drying, crushing, calcining for 1h at 300 ℃, and crushing to obtain pretreated montmorillonite;
s3, adding 30kg of water into 26kg of pretreated paper mulberry powder, adding 40kg of pretreated montmorillonite under stirring, carrying out ultrasonic treatment for 20min at the ultrasonic frequency of 20kHz, sequentially adding 2kg of acrylamide, 0.15kg of N, N' -methylene bisacrylamide, 0.1kg of lauryl alcohol sulfate TEA salt and 0.2kg of polyacrylic acid ammonium salt under stirring, stirring until the mixture is fully foamed, adding 0.1kg of ammonium persulfate, and uniformly stirring at the temperature of 30-35 ℃ to obtain a compound material;
s4, feeding the compound material into a forming die, adjusting the temperature to 80 ℃, preserving the temperature for 1h, and then irradiating for 10min by using a high-energy electron beam, wherein the irradiation dose is 10 kGy; and (3) feeding the obtained green body into a calcining furnace, heating to 220 ℃ from room temperature at the speed of 1 ℃/min, preserving heat for 20min, heating to 340 ℃ at the speed of 5 ℃/min, preserving heat for 15min, cooling along with the furnace, and crushing to obtain the soil conditioner for landscaping.
Example 3
A preparation method of a soil conditioner for landscaping comprises the following steps:
s1, mixing 12kg of paper mulberry powder and 70kg of phosphoric acid solution with the mass fraction of 52%, adjusting the temperature to 68 ℃, stirring for 42min at the stirring speed of 90r/min, adding 3kg of disproportionated rosin, stirring uniformly, extruding and forming, then sending into a calcining furnace, activating for 25min at 670 ℃, washing with ethanol and water in sequence, and drying to obtain pretreated paper mulberry powder;
s2, stirring 28kg of montmorillonite and 70kg of acetic acid for 35min at the stirring temperature of 55 ℃ and the stirring speed of 1700r/min, adding 1.2kg of zinc dicarboxylate under stirring, continuing stirring for 1.7h, filtering, drying, crushing, calcining at 220 ℃ for 1.8h, and crushing to obtain pretreated montmorillonite;
s3, adding 45kg of water into 22kg of pretreated paper mulberry powder, adding 36kg of pretreated montmorillonite under stirring, carrying out ultrasonic treatment for 35min at the ultrasonic frequency of 16kHz, sequentially adding 3.5kg of acrylamide, 0.12kg of N, N' -methylene bisacrylamide, 0.17kg of lauryl sulfate TEA salt and 0.13kg of ammonium polyacrylate under stirring, stirring until the mixture fully foams, adding 0.13kg of ammonium persulfate, and uniformly stirring at the temperature of 32 ℃ to obtain a compound material;
s4, feeding the compound material into a forming die, adjusting the temperature to 77 ℃, preserving the heat for 1.2h, and then irradiating for 8min by using a high-energy electron beam, wherein the irradiation dose is 10 kGy; and (3) feeding the obtained green body into a calcining furnace, heating to 210 ℃ from room temperature at the speed of 1.3 ℃/min, preserving heat for 20min, heating to 340 ℃ at the speed of 5 ℃/min, preserving heat for 15min, cooling along with the furnace, and crushing to obtain the soil conditioner for landscaping.
Example 4
A preparation method of a soil conditioner for landscaping comprises the following steps:
s1, mixing 14kg of the broussonetia papyrifera powder with 50kg of phosphoric acid solution with the mass fraction of 54%, adjusting the temperature to 62 ℃, stirring for 48min at the stirring speed of 70r/min, adding 5kg of disproportionated rosin, stirring uniformly, extruding and forming, sending into a calcining furnace, activating for 35min at 630 ℃, sequentially washing with ethanol and water, and drying to obtain pretreated broussonetia papyrifera powder;
s2, stirring 22kg of montmorillonite and 90kg of tetramethylethylenediamine for 25min at the stirring temperature of 65 ℃ and the stirring speed of 1300r/min, adding 1.8kg of zinc dicarboxylate under stirring, continuing stirring for 1.3h, filtering, drying, crushing, calcining at 280 ℃ for 1.2h, and crushing to obtain pretreated montmorillonite;
s3, adding 35kg of water into 24kg of pretreated paper mulberry powder, adding 38kg of pretreated montmorillonite under stirring, carrying out ultrasonic treatment for 25min at the ultrasonic frequency of 18kHz, sequentially adding 2.5kg of acrylamide, 0.14kg of N, N' -methylene bisacrylamide, 0.13kg of lauryl sulfate TEA salt and 0.17kg of ammonium polyacrylate under stirring, stirring until the mixture fully foams, adding 0.11kg of ammonium persulfate, and uniformly stirring at 34 ℃ to obtain a compound material;
s4, feeding the compound material into a forming die, adjusting the temperature to 73 ℃, preserving the heat for 1.8h, and then irradiating for 6min by using a high-energy electron beam, wherein the irradiation dose is 10 kGy; and (3) feeding the obtained green body into a calcining furnace, heating to 190 ℃ from room temperature at the speed of 1.7 ℃/min, preserving heat for 30min, heating to 400 ℃ at the speed of 3 ℃/min, preserving heat for 5min, cooling along with the furnace, and crushing to obtain the soil conditioner for landscaping.
Example 5
A preparation method of a soil conditioner for landscaping comprises the following steps:
s1, mixing 13kg of broussonetia papyrifera powder and 60kg of phosphoric acid solution with the mass fraction of 53%, adjusting the temperature to 65 ℃, stirring for 45min at the stirring speed of 80r/min, adding 4kg of disproportionated rosin, stirring uniformly, extruding and forming, sending into a calcining furnace, activating for 30min at 650 ℃, washing with ethanol and water in sequence, and drying to obtain pretreated broussonetia papyrifera powder;
s2, stirring 25kg of montmorillonite and 80kg of water for 30min at the stirring temperature of 60 ℃ and the stirring speed of 1500r/min, adding 1.5kg of zinc dicarboxylate under stirring, continuing stirring for 1.5h, filtering, drying, crushing, calcining at 260 ℃ for 1.5h, and crushing to obtain pretreated montmorillonite;
s3, adding 40kg of water into 23kg of pretreated paper mulberry powder, adding 36-38kg of pretreated montmorillonite under stirring, carrying out ultrasonic treatment for 30min at the ultrasonic frequency of 17kHz, sequentially adding 3kg of acrylamide, 0.13kg of N, N' -methylene bisacrylamide, 0.15kg of lauryl sulfate TEA salt and 0.15kg of ammonium polyacrylate under stirring, stirring until the mixture fully foams, adding 0.12kg of ammonium persulfate, and uniformly stirring at 33 ℃ to obtain a compound material;
s4, feeding the compound material into a forming die, adjusting the temperature to 75 ℃, preserving the heat for 1.5h, and then irradiating for 7min by using a high-energy electron beam, wherein the irradiation dose is 10 kGy; and (3) feeding the obtained green body into a calcining furnace, heating to 200 ℃ from room temperature at the speed of 1.5 ℃/min, preserving heat for 25min, heating to 370 ℃ at the speed of 4 ℃/min, preserving heat for 10min, cooling along with the furnace, and crushing to obtain the soil conditioner for landscaping.
Comparative example 1
A preparation method of a soil conditioner for landscaping comprises the following steps:
s1, stirring 25kg of montmorillonite and 80kg of water for 30min at the stirring temperature of 60 ℃ and the stirring speed of 1500r/min, adding 1.5kg of zinc dicarboxylate under stirring, continuing stirring for 1.5h, filtering, drying, crushing, calcining at 260 ℃ for 1.5h, and crushing to obtain pretreated montmorillonite;
s2, adding 40kg of water into 23kg of carbonized paper mulberry powder, adding 36-38kg of pretreated montmorillonite under stirring, carrying out ultrasonic treatment for 30min at the ultrasonic frequency of 17kHz, sequentially adding 3kg of acrylamide, 0.13kg of N, N' -methylene bisacrylamide, 0.15kg of lauryl sulfate TEA salt and 0.15kg of ammonium polyacrylate under stirring, stirring until the mixture is fully foamed, adding 0.12kg of ammonium persulfate, and uniformly stirring at 33 ℃ to obtain a compound material;
s3, feeding the compound material into a forming die, adjusting the temperature to 75 ℃, preserving the heat for 1.5h, and then irradiating for 7min by using a high-energy electron beam, wherein the irradiation dose is 10 kGy; and (3) feeding the obtained green body into a calcining furnace, heating to 200 ℃ from room temperature at the speed of 1.5 ℃/min, preserving heat for 25min, heating to 370 ℃ at the speed of 4 ℃/min, preserving heat for 10min, cooling along with the furnace, and crushing to obtain the soil conditioner for landscaping.
Comparative example 2
A preparation method of a soil conditioner for landscaping comprises the following steps:
s1, mixing 13kg of broussonetia papyrifera powder and 60kg of phosphoric acid solution with the mass fraction of 53%, adjusting the temperature to 65 ℃, stirring for 45min at the stirring speed of 80r/min, adding 4kg of disproportionated rosin, stirring uniformly, extruding and forming, sending into a calcining furnace, activating for 30min at 650 ℃, washing with ethanol and water in sequence, and drying to obtain pretreated broussonetia papyrifera powder;
s2, adding 40kg of water into 23kg of pretreated broussonetia papyrifera powder, adding 36-38kg of montmorillonite under stirring, carrying out ultrasonic treatment for 30min at the ultrasonic frequency of 17kHz, sequentially adding 3kg of acrylamide, 0.13kg of N, N' -methylene bisacrylamide, 0.15kg of lauryl alcohol sulfate TEA salt and 0.15kg of ammonium polyacrylate under stirring, stirring until the mixture is fully foamed, adding 0.12kg of ammonium persulfate, and uniformly stirring at 33 ℃ to obtain a compound material;
s3, feeding the compound material into a forming die, adjusting the temperature to 75 ℃, preserving the heat for 1.5h, and then irradiating for 7min by using a high-energy electron beam, wherein the irradiation dose is 10 kGy; and (3) feeding the obtained green body into a calcining furnace, heating to 200 ℃ from room temperature at the speed of 1.5 ℃/min, preserving heat for 25min, heating to 370 ℃ at the speed of 4 ℃/min, preserving heat for 10min, cooling along with the furnace, and crushing to obtain the soil conditioner for landscaping.
Comparative example 3
A preparation method of a soil conditioner for landscaping comprises the following steps:
s1, mixing 13kg of broussonetia papyrifera powder and 60kg of phosphoric acid solution with the mass fraction of 53%, adjusting the temperature to 65 ℃, stirring for 45min at the stirring speed of 80r/min, adding 4kg of disproportionated rosin, stirring uniformly, extruding and forming, sending into a calcining furnace, activating for 30min at 650 ℃, washing with ethanol and water in sequence, and drying to obtain pretreated broussonetia papyrifera powder;
s2, stirring 25kg of montmorillonite and 80kg of water for 30min at the stirring temperature of 60 ℃ and the stirring speed of 1500r/min, adding 1.5kg of zinc dicarboxylate under stirring, continuing stirring for 1.5h, filtering, drying, crushing, calcining at 260 ℃ for 1.5h, and crushing to obtain pretreated montmorillonite;
s3, adding 40kg of water into 23kg of pretreated paper mulberry powder, adding 36-38kg of pretreated montmorillonite under stirring, sequentially adding 3kg of acrylamide, 0.13kg of N, N' -methylene bisacrylamide, 0.15kg of lauryl alcohol sulfate TEA salt and 0.15kg of polyacrylic acid ammonium salt under stirring, stirring until the mixture fully foams, adding 0.12kg of ammonium persulfate, and uniformly stirring at 33 ℃ to obtain a compound material;
s4, feeding the compound material into a forming die, adjusting the temperature to 75 ℃, preserving the heat for 1.5h, and then irradiating for 7min by using a high-energy electron beam, wherein the irradiation dose is 10 kGy; and (3) feeding the obtained green body into a calcining furnace, heating to 200 ℃ from room temperature at the speed of 1.5 ℃/min, preserving heat for 25min, heating to 370 ℃ at the speed of 4 ℃/min, preserving heat for 10min, cooling along with the furnace, and crushing to obtain the soil conditioner for landscaping.
Comparative example 4
A preparation method of a soil conditioner for landscaping comprises the following steps:
s1, mixing 13kg of broussonetia papyrifera powder and 60kg of phosphoric acid solution with the mass fraction of 53%, adjusting the temperature to 65 ℃, stirring for 45min at the stirring speed of 80r/min, adding 4kg of disproportionated rosin, stirring uniformly, extruding and forming, sending into a calcining furnace, activating for 30min at 650 ℃, washing with ethanol and water in sequence, and drying to obtain pretreated broussonetia papyrifera powder;
s2, stirring 25kg of montmorillonite and 80kg of water for 30min at the stirring temperature of 60 ℃ and the stirring speed of 1500r/min, adding 1.5kg of zinc dicarboxylate under stirring, continuing stirring for 1.5h, filtering, drying, crushing, calcining at 260 ℃ for 1.5h, and crushing to obtain pretreated montmorillonite;
s3, adding 40kg of water into 23kg of pretreated paper mulberry tree powder, adding 36-38kg of pretreated montmorillonite under stirring, and carrying out ultrasonic treatment for 30min at the ultrasonic frequency of 17kHz to obtain a compound material;
s4, feeding the compound material into a forming die, adjusting the temperature to 75 ℃, preserving the heat for 1.5h, and then irradiating for 7min by using a high-energy electron beam, wherein the irradiation dose is 10 kGy; and (3) feeding the obtained green body into a calcining furnace, heating to 200 ℃ from room temperature at the speed of 1.5 ℃/min, preserving heat for 25min, heating to 370 ℃ at the speed of 4 ℃/min, preserving heat for 10min, cooling along with the furnace, and crushing to obtain the soil conditioner for landscaping.
Comparative example 5
A preparation method of a soil conditioner for landscaping comprises the following steps:
s1, mixing 13kg of broussonetia papyrifera powder and 60kg of phosphoric acid solution with the mass fraction of 53%, adjusting the temperature to 65 ℃, stirring for 45min at the stirring speed of 80r/min, adding 4kg of disproportionated rosin, stirring uniformly, extruding and forming, sending into a calcining furnace, activating for 30min at 650 ℃, washing with ethanol and water in sequence, and drying to obtain pretreated broussonetia papyrifera powder;
s2, stirring 25kg of montmorillonite and 80kg of water for 30min at the stirring temperature of 60 ℃ and the stirring speed of 1500r/min, adding 1.5kg of zinc dicarboxylate under stirring, continuing stirring for 1.5h, filtering, drying, crushing, calcining at 260 ℃ for 1.5h, and crushing to obtain pretreated montmorillonite;
s3, adding 40kg of water into 23kg of pretreated paper mulberry powder, adding 36-38kg of pretreated montmorillonite under stirring, carrying out ultrasonic treatment for 30min at the ultrasonic frequency of 17kHz, sequentially adding 3kg of acrylamide, 0.13kg of N, N' -methylene bisacrylamide, 0.15kg of lauryl sulfate TEA salt and 0.15kg of ammonium polyacrylate under stirring, stirring until the mixture fully foams, adding 0.12kg of ammonium persulfate, and uniformly stirring at 33 ℃ to obtain a compound material;
s4, feeding the compound material into a forming die, adjusting the temperature to 75 ℃, and keeping the temperature for 1.5 hours; and (3) feeding the obtained green body into a calcining furnace, heating to 200 ℃ from room temperature at the speed of 1.5 ℃/min, preserving heat for 25min, heating to 370 ℃ at the speed of 4 ℃/min, preserving heat for 10min, cooling along with the furnace, and crushing to obtain the soil conditioner for landscaping.
The soil conditioner for landscaping obtained in example 5 and comparative examples 1 to 5 was subjected to property testing, and the results thereof were as follows:
mean diameter of the particles, mm Average pore size of honeycomb, mum
Example 5 1.67 65
Comparative example 1 2.43 82
Comparative example 2 1.85 77
Comparative example 3 2.59 124
Comparative example 4 2.87 202
Comparative example 5 3.75 159
Carrying out a soil remediation test on a certain polluted landscaping land with the lead concentration of 275 +/-0.5 mg/kg, randomly dividing the land into 6 groups, and repeating the steps for 3 times; uniformly spreading the soil conditioner for landscaping obtained in the example 5 and the comparative examples 1-5 on the soil surface according to the use amount of 20 kg/mu, carrying out rotary tillage for 3 times, and covering with a film to seal, preserve moisture and maintain temperature;
preparing a leachate from a repaired sample at a predetermined age after maintenance according to a procedure of an acetic acid buffer solution method of a solid waste leaching toxicity leaching method of HJ/T300-. The results are as follows:
Figure BDA0002659991540000121
from the above table, it can be seen that: when the soil conditioner for landscaping is used for maintenance for 7 days, the lead content in the soil is rapidly reduced, the requirement that the total lead limit value of vegetable fields in GB 15618 + 2008 soil environment quality standard is less than or equal to 50mg/kg is met, and the soil conditioner completely meets the relevant standard after being maintained for 14 days.
Performing a soil improvement test on a farm in a certain place, and randomly dividing the land parcels into 7 groups, wherein each group comprises 3 repeats; the soil conditioner for landscaping obtained in example 5 and comparative examples 1-5 was uniformly applied on the soil surface at a dose of 15 kg/mu, rotary tillage was performed 3 times, and the soil was analyzed after 3 months:
Figure BDA0002659991540000122
Figure BDA0002659991540000131
the above results confirm that: the soil conditioner for landscaping disclosed by the invention not only has strong adsorption and fixation capacity on heavy metal ions, but also has a large specific surface area, and on one hand, the soil conditioner is convenient for the adhesion of soil remediation microbial flora so as to continuously restore soil and improve soil organic matters.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. A preparation method of a soil conditioner for landscaping is characterized by comprising the following steps:
s1, mixing the paper mulberry powder and a phosphoric acid solution, adjusting the temperature to 60-70 ℃, stirring for 40-50min, adding disproportionated rosin, stirring uniformly, extruding and molding, activating for 20-40min at 620-680 ℃, washing and drying to obtain pretreated paper mulberry powder;
s2, stirring montmorillonite and polar solvent for 20-40min at 50-70 ℃, adding zinc dicarboxylate under stirring, continuing stirring for 1-2h, filtering, drying, crushing, calcining at 200-300 ℃ for 1-2h, and crushing to obtain pretreated montmorillonite;
s3, adding water into the pretreated paper mulberry powder, adding pretreated montmorillonite under stirring, performing ultrasonic treatment for 20-40min at an ultrasonic frequency of 15-20kHz, sequentially adding acrylamide, N' -methylene-bisacrylamide, a foaming agent and a dispersing agent under stirring, stirring to fully foam, adding an initiator, and uniformly stirring at 30-35 ℃ to obtain a compound material;
s4, feeding the compound material into a forming die, adjusting the temperature to 70-80 ℃, preserving heat for 1-2h, irradiating for 5-10min by using a high-energy electron beam, feeding the obtained blank into a calcining furnace, heating from room temperature to 180-class 220 ℃, preserving heat for 20-30min, then heating to 340-class 400 ℃, preserving heat for 5-15min, cooling along with the furnace, and crushing to obtain the soil conditioner for landscaping.
2. A method for preparing a soil conditioner for use in landscaping as defined in claim 1, wherein in S1, the mass fraction of phosphoric acid solution is 50-55%, and the mass ratio of broussonetia papyrifera powder, phosphoric acid solution, disproportionated rosin is 10-15: 40-80: 2-6.
3. A method for preparing a soil conditioner for use in landscaping as claimed in claim 1, wherein, in S1, after activation, ethanol and water are sequentially used for washing.
4. A method for preparing a soil conditioner for use in landscaping as claimed in claim 1, wherein the polar solvent in S2 is at least one of water, formamide, dimethylformamide, methanol, ethanol, acetic acid, isopropanol, and tetramethylethylenediamine.
5. A method for preparing a soil conditioner for landscaping as claimed in claim 1, wherein in S2, the mass ratio of montmorillonite, polar solvent, and zinc dicarboxylate is 20-30: 60-100: 1-2.
6. A method for preparing a soil conditioner for use in landscaping as defined in claim 1, wherein in S3, the mass ratio of pretreated paper mulberry powder, pretreated montmorillonite, acrylamide, N' -methylenebisacrylamide, foaming agent, dispersant, and initiator is 20-26: 35-40: 2-4: 0.1-0.15: 0.1-0.2: 0.1-0.2: 0.1-0.15.
7. A method for preparing a soil conditioner for landscaping as claimed in claim 1, wherein in S4, the irradiation dose of high-energy electron beam is 10 kGy.
8. The method for preparing a soil conditioner for landscaping as defined in claim 1, wherein in S4, the obtained green body is fed into a calciner, heated from room temperature to 180-220 ℃ at a rate of 1-2 ℃/min, and then the temperature is maintained for 20-30min, heated to 340-400 ℃ at a rate of 3-5 ℃/min, and then the temperature is maintained for 5-15 min.
9. A soil conditioner for landscaping, which is prepared by the method for preparing the soil conditioner for landscaping of any one of claims 1 to 8.
10. A soil conditioner for landscaping as claimed in claim 9, which has a circular honeycomb structure with a diameter of 1-3mm and an internal honeycomb pore size of 20-100 μm.
CN202010901763.9A 2020-09-01 2020-09-01 Soil conditioner for landscaping and preparation method thereof Active CN112080281B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010901763.9A CN112080281B (en) 2020-09-01 2020-09-01 Soil conditioner for landscaping and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010901763.9A CN112080281B (en) 2020-09-01 2020-09-01 Soil conditioner for landscaping and preparation method thereof

Publications (2)

Publication Number Publication Date
CN112080281A CN112080281A (en) 2020-12-15
CN112080281B true CN112080281B (en) 2022-01-14

Family

ID=73732325

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010901763.9A Active CN112080281B (en) 2020-09-01 2020-09-01 Soil conditioner for landscaping and preparation method thereof

Country Status (1)

Country Link
CN (1) CN112080281B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114846943B (en) * 2022-06-10 2023-04-11 湖南亿恒环保工程有限公司 Soil improvement method for preventing soil acidification

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104785226B (en) * 2015-04-15 2017-04-26 陕西科技大学 Glass powder enhanced Zr modification montmorillonite honeycomb block chromium sorbent and preparation method thereof
CN106479511B (en) * 2016-09-26 2019-03-05 上海理工大学 A kind of slow-release water-retaining agent can be used for heavy metal pollution of soil reparation and preparation method
CN110776925B (en) * 2019-11-20 2021-10-08 榆林学院 Water-retaining agent prepared from excess sludge, and preparation method and application method thereof

Also Published As

Publication number Publication date
CN112080281A (en) 2020-12-15

Similar Documents

Publication Publication Date Title
CN110684539A (en) Conditioner for heavy metal contaminated soil and preparation method thereof
CN112080281B (en) Soil conditioner for landscaping and preparation method thereof
CN105367331A (en) Soil restoration fertilizer with passivated heavy metal mobility
CN109456131A (en) A kind of carbon-based soil conditioner of wood vinegar
CN106590673B (en) Soil conditioner for repairing heavy metal pollution of farmland and preparation method thereof
CN113234621A (en) Microbial compound inoculant and preparation method and application thereof
CN108752127A (en) A kind of biomass castoff soil conditioner in improvement salt-soda soil
CN109575934B (en) Heavy metal contaminated soil remediation agent and preparation method and application thereof
CN112250502A (en) Bio-carbon-based organic pesticide fertilizer and preparation method thereof
CN110591974A (en) Preparation and use method of thermophilic microbial agent for leather sludge drying
CN110235742B (en) Method for preparing greening plant substrate by adopting sludge and biogas residues
CN112280563A (en) Phosphate solubilizing bacteria mineralization conditioner, preparation method thereof and heavy metal contaminated soil remediation and improvement method
CN111662142A (en) Preparation method of distillery sludge organic fertilizer
CN114773128B (en) Resource utilization method of waste tail vegetable leaves
CN111961476B (en) Soil passivator for landscaping and preparation method thereof
CN111618069B (en) Method for preparing regenerated soil by adopting municipal sludge and agricultural and forestry wastes
CN112939702A (en) Soil conditioner and preparation method thereof
CN110396410B (en) Soil conditioner for controlling soil phosphorus loss and preparation method and application thereof
CN116656376B (en) Preparation method and application of microbial conditioner
Kanotra et al. Biodegradation of paddy straw with cellulolytic fungi and its application on wheat crop
CN112745859A (en) Soil conditioner and soil improvement method
CN108546184A (en) It is a kind of to reduce the composite fertilizer and preparation method that heavy metal in soil pollutes
CN113185983B (en) Soil conditioner and preparation method and application thereof
CN114410309B (en) Iron-based saline-alkali soil conditioner and application method thereof
CN114749471B (en) Odor reduction method for pesticide chemical polluted soil remediation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20211221

Address after: 237000 room 109, building G8, Shangcheng international community, 197 Foziling Middle Road, Lu'an City, Anhui Province

Applicant after: Anhui Shanhu Ecological Construction Co.,Ltd.

Address before: 237000 Street education system of Shipodian Town, Yu'an District, Lu'an City, Anhui Province

Applicant before: Zhang Shujun

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant