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Improvement and detection methods for saline-alkali soil and desert soil

A technology for soil improvement and detection methods, applied in land preparation methods, agricultural machinery and implements, applications, etc., can solve the problems of waste of resources, unfavorable pipeline transportation, coarse particles of inorganic components, etc., to improve the rate of salt leaching and achieve effective utilization. , beneficial to growth

Inactive Publication Date: 2019-02-15
HANGZHOU ENJOY ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic components have coarse particles, high density, easy to form sediment, low moisture content and easy to dehydrate, but poor fluidity, which is not conducive to pipeline transportation
[0005] According to statistics, more than 40% of municipal sludge is used for landfill, and 33% is incinerated, which is a great waste of resources.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A soil improvement and detection method for saline-alkali land and desert, including a soil improvement method and a soil detection method, wherein the steps of the soil improvement method are as follows:

[0031] 1) Solid-liquid separation of kitchen waste, crushing of agricultural and forestry wastes, dewatering of river sludge and municipal sludge;

[0032] 2) Mix 60 parts of kitchen waste, 10 parts of agricultural and forestry waste, 30 parts of river sludge and municipal sludge treated in step 1), add activated carbon and hydrogen peroxide for composting and fermentation, hydrogen peroxide disinfection, activated carbon to remove part of the odor, activated carbon The mass percentage of the mixture with hydrogen peroxide is 5%;

[0033] 3) The compost fermentation product 1 in step 2) is compressed and dewatered, and the compost fermentation is carried out again to keep its temperature at 50°C. When the temperature exceeds 50°C, a soil tiller is used to turn the he...

Embodiment 2

[0048] In step 3) of the soil improvement method, the mixing mass ratio is: 40% of kitchen waste, 20% of agricultural and forestry waste, 40% of river sludge and municipal sludge, and the mass percentage of activated carbon and hydrogen peroxide in the mixture is 10%; step 5) The temperature of re-composting fermentation in the medium was maintained at 70°C.

Embodiment 3

[0050] In step 3) of the soil improvement method, the mixing mass ratio is: 50% of kitchen waste, 15% of agricultural and forestry waste, 35% of river sludge and municipal sludge, and the mass percentage of activated carbon and hydrogen peroxide in the mixture is 8%; step 5) The temperature of re-composting fermentation in the medium was maintained at 60°C.

[0051] The invention can make the soil change from weakly alkaline to weakly acidic which is more suitable for plant growth, and also significantly improve the salinity leaching rate of the soil and the germination index of plants, which is beneficial to the growth of plants, and obviously improves the quality of the original soil. It can realize the harmless and resourceful treatment of kitchen waste, and realize the effective utilization of waste resources.

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PUM

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Abstract

The invention discloses improvement and detection methods for saline-alkali soil and desert soil. The methods comprises a soil improvement method and a soil detection method, wherein the soil detection method comprises the following steps: two backfill soil samples are taken, one backfill soil sample is directly mixed with deionized water and filtered, and a soil extract solution I is obtained; the other backfill soil sample is sprayed and leached by the deionized water and then mixed with the deionized water and filtered, and a soil extract solution II is obtained; pH, salt leaching rates andplant germination indexes of the two soil extract solutions are measured respectively and compared with those of common saline-alkali soil and desert soil. With the adoption of the methods, the soilcan be changed from weak basicity to weak acidity which is more suitable for plant growth, the salt leaching rate and the plant germination index of the soil can be increased obviously, plant growth is facilitated, quality of natural soil is improved obviously, harmless and recycling treatment of kitchen waste can be realized, and effective utilization of waste resources is realized.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a saline-alkali land and desert soil improvement and detection method. Background technique [0002] At present, the saline-alkali land and desert soil are generally weakly alkaline, and the salt leaching rate of the soil is very low, which is not suitable for the growth of plants. The germination index of plants is also low, which is not suitable for the growth of plants. Therefore, it is necessary to develop effective The organic fertilizer is used to improve saline-alkali land and desert soil; [0003] The treatment methods of kitchen waste mainly include landfill, incineration, aerobic composting, anaerobic digestion and processing feed. Among them, landfill can reduce the amount of waste, but kitchen waste is mainly composed of carbohydrates, vegetable leaves and fruit peels, and has a high water content. Landfill is prone to produce a large amount of lea...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05F17/00A01B79/02G01N27/04C05G3/80
CPCA01B79/02C05F5/002C05F17/00C05G3/00C05G3/80G01N27/04C05F7/00C05F9/00C05F11/00Y02W30/40
Inventor 甄凯旋宋启森叶伟武
Owner HANGZHOU ENJOY ENVIRONMENTAL PROTECTION TECH