A kind of preparation method of multifunctional soil conditioner

A soil conditioner and multi-functional technology, applied in soil conditioning materials, chemical instruments and methods, other chemical processes, etc., can solve the problems that do not have water and fertilizer retention performance, and the land with multiple pollution cannot be fully improved. , achieve good market value and application prospects, improve poor soil and low technical difficulty

Active Publication Date: 2022-03-29
XIAMEN UNIV TAN KAH KEE COLLEGE
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this soil improver is actually a kind of alkali powder, which mainly plays the role of adjusting the pH value of the soil. The effect of removing heavy metals can only be achieved by combining the adsorption of plants. Moreover, this soil improver does not have the performance of water retention and fertilizer retention. In practice, it is only for a single type of land, that is, it is only applicable to land polluted by heavy metals, and it cannot play a comprehensive role in improving the land that has been polluted by multiple pollutions.

Method used

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  • A kind of preparation method of multifunctional soil conditioner
  • A kind of preparation method of multifunctional soil conditioner
  • A kind of preparation method of multifunctional soil conditioner

Examples

Experimental program
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Effect test

Embodiment 1

[0035] 1) Weigh 10 g of bagasse powder that has been washed with water, dried and crushed through a 100-mesh sieve, add 45 mL of 5 mol / L phosphoric acid solution and 45 mL of 5 mol / L nitric acid solution, and digest in a water bath at 60 °C After 2 h, filter, discard the filtrate and flush the remaining material to neutrality, then add 30 mL of 20 wt% potassium hydroxide solution, heat and degrease in a water bath at 60 °C for 3 h, filter, discard the filtrate and wash the remaining material with water Rinse to neutral and dry for later use;

[0036] 2) Add 60 mL of acrylic acid to a three-necked flask, and slowly add 40 mL of 40 wt % potassium hydroxide solution at a rate of 2 drops / s under constant stirring and ice bathing to prepare neutralized 60% potassium acrylate solution;

[0037]3) Take 10 g of naturally air-dried pond bottom mud, put it into a Erlenmeyer flask containing 90 ml of sterile water and glass beads, and shake it for 20 min to fully mix the bottom mud and ...

Embodiment 2

[0041] 1) Weigh 10 g of bagasse powder that has been washed with water, dried and crushed through a 100-mesh sieve, add 45 mL of 5 mol / L phosphoric acid solution and 45 mL of 5 mol / L nitric acid solution, and digest in a water bath at 60 °C After 3 h, filter, discard the filtrate and flush the remaining material to neutrality, then add 30 mL of 30 wt% potassium hydroxide solution, heat and degrease in a water bath at 60 °C for 3 h, filter, discard the filtrate, and remove the remaining material Rinse with water to neutral and dry for later use;

[0042] 2) Add 60 mL of acrylic acid into a three-necked flask, and slowly add 40 mL of 50 wt% potassium hydroxide solution at a rate of 2 drops / s under constant stirring and ice bathing to prepare medium And degree is the potassium acrylate solution of 70%;

[0043] 3) Take 10 g of naturally air-dried pond bottom mud, put it into a Erlenmeyer flask containing 90 ml of sterile water and glass beads, and shake it for 20 min to fully mi...

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PUM

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Abstract

The invention discloses a preparation method of a multifunctional soil conditioner. Firstly, fiber microcrystals, potassium acrylate and bacterial suspension are prepared, and then the prepared fiber microcrystals, potassium acrylate are mixed with an initiator and a crosslinking agent, and the Stir the reaction in a water bath at ℃, lower the temperature to 40℃, slowly add the bacterial suspension, continue to stir, then stand and age to form a gel, and then wash, dry and pulverize to obtain a soil conditioner. The invention is simple in operation, low in technical difficulty, and strong in operability, and the soil conditioner obtained in the invention has the properties of water retention and fertilizer retention, as well as the performance of degrading organic matter. In addition, it also has certain absorption for heavy metals, which can effectively improve soil barrenness, Desertification and salinization have good market value and application prospects.

Description

technical field [0001] The invention belongs to the field of soil improver preparation, and in particular relates to a preparation method of a multifunctional soil improver. Background technique [0002] In recent years, due to the lack of water resources, irrational use and irrational cultivation, my country's land desertification has become increasingly serious, and the long-term irrational use of chemical fertilizers has caused soil compaction, soil fertility decline, and ecological damage. Once the soil structure is destroyed, it will easily lead to serious loss of soil water and fertilizer, thereby reducing land productivity and greatly hindering the virtuous circle of ecological environment and agricultural, forestry and animal husbandry production. Therefore, how to maintain soil quality and improve soil fertility has become the focus of attention. The use of soil amendments in the soil can alleviate the crisis of agricultural production to a certain extent, improve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/32C09K105/00C09K101/00
CPCC09K17/32C09K2101/00C09K2105/00
Inventor 黄强孙春梅林贞周舒婷郑珍珍景庭瑞
Owner XIAMEN UNIV TAN KAH KEE COLLEGE
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