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A kind of saline-alkali soil microbial remediation agent and its preparation method and use method

A technology for microbial remediation and saline-alkali land, applied in land preparation methods, chemical instruments and methods, applications, etc., can solve problems such as harsh living environment, weakened ability of microorganisms to restore saline-alkali land, and reduced microbial metabolic activity

Active Publication Date: 2020-12-11
中科绿洲(北京)生态工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high salinity and high alkalinity in saline-alkali land, after microorganisms are applied to saline-alkali land, their living environment is relatively poor, the metabolic activities of microorganisms are reduced, and the ability of microorganisms to repair saline-alkali land is weakened.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Premixing: Take 15kg of sodium alginate, 7kg of ethylene-vinyl acetate copolymer, 14kg of vinyl alcohol-ethylene copolymer, and 4.5kg of calcium chloride, put them into 50kg of water and mix them evenly. After the reaction is completed, adjust the pH value of the reaction system to 7, wherein the reaction temperature is 185°C, the reaction time is 50min, the average molecular weight of the ethylene-vinyl acetate copolymer is 2000, and the average molecular weight of the vinyl alcohol-ethylene copolymer is 2500;

[0033] Bacterial liquid preparation: take 7kg of bacterial powder of Bacillus subtilis, 7kg of bacterial powder of Bacillus silicates, and 7kg of bacterial powder of Bacillus lateralisporum, and put them into 25kg of base liquid for cultivation. After rejuvenation, primary expansion, secondary Ferment after expansion, and ventilate through an air compressor during the fermentation process to obtain bacterial liquid; the base liquid includes 0.3 parts of magnesiu...

Embodiment 2

[0036] Premixing: Take 11kg of sodium alginate, 5kg of ethylene-vinyl acetate copolymer, 12kg of vinyl alcohol-ethylene copolymer, and 7kg of calcium chloride, put them into 50kg of water and mix them evenly. After the reaction is completed, adjust the pH value of the reaction system to 7.5, wherein the reaction temperature is 190°C, the reaction time is 40 minutes, the average molecular weight of the ethylene-vinyl acetate copolymer is 2000, and the average molecular weight of the vinyl alcohol-ethylene copolymer is 3000;

[0037] Bacterial solution preparation: Take 5kg of bacterial powder of Bacillus subtilis, 5kg of bacterial powder of Bacillus silicates, and 9kg of bacterial powder of Bacillus lateralis, respectively, and put them into 20kg of base liquid for cultivation. After rejuvenation, primary expansion, secondary Ferment after expansion, and ventilate through an air compressor during the fermentation process to obtain bacterial liquid; the base liquid includes 0.3 p...

Embodiment 3

[0040] Premixing: Take 19kg of sodium alginate, 9kg of ethylene-vinyl acetate copolymer, 12kg of vinyl alcohol-ethylene copolymer, and 7kg of calcium chloride, put them into 50kg of water and mix them evenly. After the reaction is completed, adjust the pH value of the reaction system to 7. Wherein, the reaction temperature is 180°C, the reaction time is 60 minutes, the average molecular weight of the ethylene-vinyl acetate copolymer is 2500, and the average molecular weight of the vinyl alcohol-ethylene copolymer is 3000;

[0041] Bacterial liquid preparation: Take 5kg of bacterial powder of Bacillus subtilis, 9kg of bacterial powder of Bacillus silicates, and 5kg of bacterial powder of Bacillus lateralis, respectively, and put them into 20kg of base liquid for cultivation. After rejuvenation, primary expansion, secondary Ferment after expansion, and ventilate through an air compressor during the fermentation process to obtain bacterial liquid; the base liquid includes 0.3 part...

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PUM

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Abstract

The invention relates to a microbial remediator for saline-alkali soil. The microbial remediator for saline-alkali soil is prepared from raw materials in parts by weight as follows: 5-9 parts of an ethylene-vinyl acetate copolymer, 12-16 parts of an ethylene-vinyl alcohol copolymer, 11-19 parts of sodium alginate, 2-7 parts of calcium chloride, 35-45 parts of a bacterial solution and 5-9 parts ofpolypropylene glycol. The microbial remediator for saline-alkali soil improves the soil structure through microbes, improves the metabolic activity of the microbes and realizes the remediation effecton the saline-alkali soil.

Description

technical field [0001] The invention relates to the field of ecological restoration of saline-alkali land, more specifically, it relates to a microbial restoration agent for saline-alkali land and its preparation method and use method. Background technique [0002] Saline-alkali land is a general term for various saline soils and alkaline soils, as well as salinized and alkalized soils to varying degrees. At present, many ecological and environmental problems caused by soil salinization, such as soil erosion, land desertification, reduction of forest and grassland resources, and reduction of biodiversity, have become a global problem. [0003] Commonly used saline-alkali land treatment methods include water conservancy engineering method, chemical improvement method, biological improvement method and so on. Among them, the water conservancy engineering method includes the fresh water salt washing method, the construction of hidden pipes and ditches to drain the salt, etc. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40A01B79/02C09K101/00C09K109/00
CPCA01B79/02C09K17/40C09K2101/00C09K2109/00
Inventor 阚凤玲丁杰李晓军
Owner 中科绿洲(北京)生态工程技术有限公司
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