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Preparation method of multi-functional soil organic water-retaining agent

A water-retaining agent, multi-functional technology, applied in the directions of organic fertilizers, soil conditioning materials, chemical instruments and methods, etc., can solve the problems of poor water absorption and water retention, low utilization rate of waste liquid, single function of water-retaining agent, etc. Water absorption and water retention, strong soil remediation, strong crop cell wall effect

Inactive Publication Date: 2018-09-11
上海金禾天地信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Technical problem: Overcome the defects of low utilization rate of waste liquid from bone and vinegar factories, single function of water retaining agent, poor water absorption and water retention, and low content of organic matter in the prior art

Method used

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  • Preparation method of multi-functional soil organic water-retaining agent
  • Preparation method of multi-functional soil organic water-retaining agent
  • Preparation method of multi-functional soil organic water-retaining agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method of a multifunctional soil organic water-retaining agent, comprising the steps of:

[0022] (1) Obtaining of vinegar humic acid liquid: the waste liquid of the vinegar factory is left to stand to obtain the supernatant, the supernatant is heated to 80°C for evaporation and concentration, concentrated to a pH value of 2.0, and left to stand for 24 hours after stopping heating to obtain Vinegar and humic acid solution for use;

[0023] (2) The animal bones are semi-carbonized in a charcoal furnace at 300°C for 20 minutes, then soaked in 3 times the volume of vinegar humic acid solution for 12 hours, heated again for evaporation and concentration, and concentrated to 1 / 3 of the original volume , freeze-dried and pulverized to obtain a powder with a fineness of 95 mesh for subsequent use;

[0024] (3) Mix 120 parts by weight of the powder obtained in step (2), 50 parts by weight of straw biochar, and 30 parts by weight of vinyl monomer, add 80 parts of ...

Embodiment 2

[0027] A preparation method of a multifunctional soil organic water-retaining agent is characterized in that it comprises the steps of:

[0028] (1) Obtaining of vinegar humic acid liquid: the waste liquid of the vinegar factory is allowed to stand and the supernatant is obtained. The supernatant is heated to 85°C for evaporation and concentration until the pH value is 3. After stopping the heating, it is allowed to stand for 48 hours to obtain Vinegar and humic acid solution for use;

[0029] (2) The animal bones are semi-carbonized in a carbon-fired furnace at 330°C for 25 minutes, then soaked in 3.5 times the volume of vinegar humic acid solution for 16 hours, heated again for evaporation and concentration, and concentrated to 2 / 3 of the original volume , freeze-dried and pulverized to obtain a powder with a fineness of 90-95 mesh for subsequent use;

[0030] (3) Mix 125 parts by weight of the powder obtained in step (2), 55 parts by weight of straw biochar, and 35 parts b...

Embodiment 3

[0033] A preparation method of a multifunctional soil organic water-retaining agent, comprising the steps of:

[0034] (1) Obtaining vinegar humic acid liquid: the waste liquid from the vinegar factory is allowed to stand and the supernatant is obtained. The supernatant is heated to 90°C for evaporation and concentration until the pH value is 3.5. Stop heating and let stand for 48 hours. Get vinegar and humic acid solution for use;

[0035] (2) The animal bones are semi-carbonized in a carbon-fired furnace at 350°C for 30 minutes, then soaked in 4 times the volume of vinegar humic acid solution for 20 hours, heated again for evaporation and concentration, and concentrated to 1 / 2 of the original volume , freeze-dried and pulverized to obtain a powder with a fineness of 90-95 mesh for subsequent use;

[0036](3) Mix 130 parts by weight of the powder obtained in step (2), 60 parts by weight of straw biochar, and 40 parts by weight of vinyl monomers, add 100 parts of water, fully...

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Abstract

The invention relates to a preparation method of a multi-functional soil organic water-retaining agent. Animal bone blocks and a vinegar humic acid liquid organic matter rich in source are reutilized,straw biochar is combined, and a specially made cross-linking fluid is utilized for preparing an organic water-retaining agent. Bones are semi-carbonized preprocessed so as to have adsorptivity and be increased in specific surface area without being completely carbonized, and the bones can fully adsorb organic matters and nutrient substances in a soak solution during a vinegar humic acid liquid soaking process. According to the water-retaining agent prepared by the invention, the water absorption capacity reaches up to 900, the water retaining rate reaches to 50 percent after 12h at 55 DEG C,the organic content is 28 percent, the gel strength is high, and the water retaining rate is larger than 90 percent after the water-retaining agent is centrifuged in a centrifugal machine for 30 minat 3000r / min; the nutrient releasing rate of the nutrient ingredients does not exceed 75 percent within 30 days; the multi-functional soil organic water-retaining agent is good for loosening soil, reproducing microorganisms, effectively improving a soil structure, and improving the permeability and the drought resistance of soil, non-toxic, harmless, green and environmental-friendly, so that a benign cycle is formed.

Description

technical field [0001] The invention relates to the improvement of water-absorbing, water-retaining, water-retaining and fertilizer-supplying properties of water-retaining agents in the field of soil improvement, and in particular to a preparation method of a bone meal-based multifunctional water-retaining agent capable of slow-release nutrition. Background technique [0002] China's agricultural water resources are scarce, and improving water resource utilization has always been a problem in arid and semi-arid areas in my country. Agricultural water-retaining agents have high water absorption and water retention properties, can stabilize soil structure, reduce soil bulk density, increase soil capillary water holding capacity, and increase water infiltration. , control the evaporation of soil moisture, enjoy the reputation of "plant miniature reservoir", and have extensive significance in crop protection, landscaping, and desertification soil improvement. At present, water re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C09K17/40C09K101/00C05G3/80
CPCC05D9/00C05G3/00C09K17/40C09K2101/00C05G3/80C05F1/005C05F11/02
Inventor 不公告发明人
Owner 上海金禾天地信息科技有限公司
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