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CN-122012104-A - Garden ecological environment repairing agent, preparation method and application

CN122012104ACN 122012104 ACN122012104 ACN 122012104ACN-122012104-A

Abstract

The invention relates to the technical field of garden ecological environment restoration, in particular to a garden ecological environment restoration agent, a preparation method and application thereof, wherein the garden ecological environment restoration agent comprises, by weight, 30-50 parts of modified biochar, 5-15 parts of wollastonite, 5-15 parts of hydroxyapatite, 10-20 parts of sepiolite, 15-25 parts of humic acid and 3-8 parts of microbial agent, and the garden ecological environment restoration agent has a good restoration effect on soil environment.

Inventors

  • WANG TAO
  • ZHANG HUATAO
  • YANG XIKUN
  • LIU YANG
  • WANG QIANG
  • GAO XINGANG
  • ZHANG LINLIN

Assignees

  • 东盛生态科技股份有限公司

Dates

Publication Date
20260512
Application Date
20260119

Claims (6)

  1. 1. The garden ecological environment repairing agent is characterized by comprising, by weight, 30-50 parts of modified biochar, 5-15 parts of wollastonite, 5-15 parts of hydroxyapatite, 10-20 parts of sepiolite, 15-25 parts of humic acid and 3-8 parts of microbial agent; the preparation method of the modified biochar comprises the following steps: (1) Cleaning rice straw, drying, and pulverizing to 1-5 mm; (2) Heating to 300-500 ℃ at a rate of 5-10 ℃ per minute under the atmosphere of inert gas (nitrogen), pyrolyzing for 1-4 hours, cooling to room temperature, grinding and sieving to obtain the biochar powder for later use; (3) Adding the biochar powder in the step (2) into hydrochloric acid according to the solid-to-liquid ratio of 1:10-20, stirring for 10-20h at 25-60 ℃, performing suction filtration, and washing and drying the collected filter cake to obtain the modified biochar.
  2. 2. The garden ecological environment repairing agent according to claim 1, which is characterized by comprising, by weight, 40 parts of modified biochar, 10 parts of wollastonite, 10 parts of hydroxyapatite, 15 parts of sepiolite, 20 parts of humic acid and 5 parts of microbial agents.
  3. 3. The garden ecological environment repairing agent according to claim 1, wherein the microbial agent comprises bacillus subtilis, bacillus mucilaginosus, bacillus megaterium and azotobacter, and the bacillus subtilis, bacillus mucilaginosus, bacillus megaterium and azotobacter are mixed according to a mass ratio of 3-5:2-4:2-4:1-3:1.
  4. 4. A garden ecological environment restoration agent according to claim 3, wherein the bacillus subtilis, bacillus mucilaginosus, bacillus megaterium and azotobacter are mixed according to a mass ratio of 4:3:3:2:1.
  5. 5. A method for preparing the garden ecological restoration agent as defined in claim 1, which comprises the following process steps: (1) Respectively crushing wollastonite, hydroxyapatite and sepiolite, grinding, and sieving with a 100-200 mesh sieve to obtain wollastonite powder, hydroxyapatite powder and sepiolite powder for later use; (2) According to the weight portions of the formula, the pretreated modified biochar, wollastonite powder, hydroxyapatite powder and sepiolite powder are stirred and mixed uniformly, then humic acid is added for continuous stirring and mixing, and finally microbial agent is added for stirring and mixing uniformly, thus obtaining the garden ecological restoration agent.
  6. 6. Use of the landscape ecology restoration agent according to claim 1 in restoration of heavy metal contaminated soil.

Description

Garden ecological environment repairing agent, preparation method and application Technical Field The invention relates to the technical field of garden ecological environment restoration, in particular to a garden ecological environment restoration agent, a preparation method and application. Background In ecological gardens, in order to maintain a better ecological environment, the severe ecological environment needs to be repaired, wherein the repair of soil is a serious problem in the whole ecological environment, and as people destroy the environment, the ecological environment of the soil becomes extremely severe, and the soil pollution seriously and urgently needs to be repaired. Soil remediation in an ecological environment is a systematic engineering, and aims to remove, reduce, stabilize or transform pollutants in soil and restore ecological functions and service values of the pollutants. The current soil remediation methods include physical remediation, chemical remediation and biological remediation, wherein physical means are used for separating, removing or isolating pollutants, such as soil replacement, thermal desorption and the like, although the soil is remediated, the cost is high, chemical remediation is used for changing the form of the pollutants or decomposing the pollutants through chemical reaction, such as adding an oxidant for oxidation-reduction reaction, or washing the soil by adopting a washing liquid containing a surfactant or a chelating agent, and the like, and although the soil is remediated, new chemical substances or toxic byproducts can be introduced into the soil. Therefore, aiming at the problems, it is necessary to develop a garden ecological environment repairing agent, a preparation method and application. Disclosure of Invention The first technical problem to be solved by the invention is to provide a garden ecological environment restoration agent for overcoming the defects of the prior art, and the ecological environment restoration agent can be used for better restoring soil and reducing secondary pollution to the soil environment. In order to solve the technical problems, the technical scheme of the invention is as follows: the garden ecological environment repairing agent comprises, by weight, 30-50 parts of modified biochar, 5-15 parts of wollastonite, 5-15 parts of hydroxyapatite, 10-20 parts of sepiolite, 15-25 parts of humic acid and 3-8 parts of microbial agent; the preparation method of the modified biochar comprises the following steps: (1) Cleaning rice straw, drying, and pulverizing to 1-5 mm; (2) Heating to 300-500 ℃ at a rate of 5-10 ℃ per minute under the atmosphere of inert gas (nitrogen), pyrolyzing for 1-4 hours, cooling to room temperature, grinding and sieving to obtain the biochar powder for later use; (3) Adding the biochar powder in the step (2) into hydrochloric acid according to the solid-to-liquid ratio of 1:10-20, stirring for 10-20h at 25-60 ℃, performing suction filtration, and washing and drying the collected filter cake to obtain the modified biochar. The garden ecological restoration agent is characterized by comprising, by weight, 40 parts of modified biochar, 10 parts of wollastonite, 10 parts of hydroxyapatite, 15 parts of sepiolite, 20 parts of humic acid and 5 parts of microbial agents. As an improved technical scheme, the microbial agent comprises bacillus subtilis, bacillus mucilaginosus, bacillus megaterium and azotobacter, wherein the bacillus subtilis, the bacillus mucilaginosus, the bacillus megaterium and the azotobacter are mixed according to the mass ratio of 3-5:2-4:2-4:1-3:1. As a preferable technical scheme, the bacillus subtilis, the bacillus mucilaginosus, the bacillus megaterium and the azotobacter are mixed according to the mass ratio of 4:3:3:2:1. The second technical problem to be solved by the invention is to provide a preparation method of the ecological restoration agent for gardens aiming at the defects of the prior art, and the ecological restoration agent obtained by the preparation method has better restoration to soil and can prevent secondary pollution to the soil environment. The preparation method of the garden ecological environment repairing agent comprises the following process steps: (1) Respectively crushing wollastonite, hydroxyapatite and sepiolite, grinding, and sieving with a 100-200 mesh sieve to obtain wollastonite powder, hydroxyapatite powder and sepiolite powder for later use; (2) According to the weight portions of the formula, the pretreated modified biochar, wollastonite powder, hydroxyapatite powder and sepiolite powder are stirred and mixed uniformly, then humic acid is added for continuous stirring and mixing, and finally microbial agent is added for stirring and mixing uniformly, thus obtaining the garden ecological restoration agent. The invention also protects the application of the garden ecological restoration agent in restoring heavy metal contaminated soil; After the tech