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Sandy garden soil structure conditioner and preparation method thereof

A soil structure and improver technology, applied in chemical instruments and methods, soil preparation methods, soil conditioning materials, etc., can solve the problems of odor, inconvenience in transportation, and high content of pathogenic microorganisms, and achieve the promotion of vegetation growth, broad prospects, and change. The effect of Feiweibao price

Active Publication Date: 2015-09-09
GANSU AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on this, the inventors conducted literature research on the content of heavy metals in sludge, and on the basis of confirming the safety of its land use, carried out a series of sludge fermentation process optimization and formula screening tests in laboratories and greenhouses. The verification was carried out on the green belt, and finally a garden desertification soil structure improver was successfully developed, which solved many problems such as direct application of sludge with odor, inconvenient transportation, and high content of pathogenic microorganisms.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The garden sandy soil structure modifier is composed of the following formula components in parts by weight: 60 parts of urban sludge, 10 parts of peat, 15 parts of cow manure, 8 parts of humic acid, 5 parts of diammonium phosphate, 0.5 parts of agricultural rare earths , 1.5 parts of calcium bentonite.

[0034] The above-mentioned preparation method of garden sandy soil structure modifier consists of the following steps:

[0035] 1) Dry the urban sludge in the sun and crush it for later use;

[0036] 2) Weigh the municipal sludge, peat, cow dung, and humic acid obtained in step 1) in proportion, and use the semi-pit stacking method to spread a layer of municipal sludge, then a layer of humic acid, and then cover A layer of cow dung, and finally a layer of peat accumulation, fermentation at 50 ℃ for 12 days, the purpose is to remove the odor of sludge, pathogenic microorganisms and some organic pollutants;

[0037] 3) The mixture obtained in step 2) is pulverized and mixed...

Embodiment 2

[0039] The garden sandy soil structure modifier is composed of the following formula components in parts by weight: 50 parts of urban sludge, 20 parts of peat, 5 parts of cow dung, 15 parts of humic acid, 2 parts of diammonium phosphate, 5 parts of agricultural rare earths , 0.1 part of calcium bentonite.

[0040] The above-mentioned preparation method of garden sandy soil structure modifier consists of the following steps:

[0041] 1) Dry the urban sludge in the sun and crush it for later use;

[0042] 2) Weigh the municipal sludge, peat, cow dung, and humic acid obtained in step 1) according to the proportions, using the semi-pit stacking method, first spread a layer of humic acid, then a layer of peat, and then cover a layer Cow dung, and finally a layer of urban sludge accumulation. Fermentation at 70 ℃ for 5 days, the purpose is to remove the odor of sludge, pathogenic microorganisms and some organic pollutants;

[0043] 3) The mixture obtained in step 2) is pulverized a...

Embodiment 3

[0045] The garden sandy soil structure modifier is composed of the following formula components in parts by weight: 80 parts of urban sludge, 6 parts of peat, 20 parts of cow dung, 2 parts of humic acid, 15 parts of diammonium phosphate, and 0.05 parts of agricultural rare earths , 5 parts of calcium bentonite.

[0046] The above-mentioned preparation method of garden sandy soil structure modifier consists of the following steps:

[0047] 1) Dry the urban sludge in the sun and crush it for later use;

[0048] 2) Weigh the municipal sludge, peat, cow dung, and humic acid obtained in step 1) according to the proportions, using the semi-pit stacking method, first spread a layer of cow dung, then a layer of peat, and then cover a layer Humic acid, and finally a layer of urban sludge accumulation. Fermentation at 30 ℃ for 10 days, the purpose is to remove the odor of sludge, pathogenic microorganisms and some organic pollutants;

[0049] 3) The mixture obtained in step 2) is pulv...

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Abstract

The invention discloses a sandy garden soil structure conditioner composed of municipal sludge, peat, cow dung, humic acid, diammonium phosphate, rare earth elements for agricultural use and calcium bentonite. When municipal sludge is directly applied to sandy garden soil, the problems of low nutrient content, high pathogene microorganism content, bad smell and inconvenience in transportation and storage and the like are caused; by use of the sandy garden soil structure conditioner, all these problems can be solved thoroughly.

Description

technical field [0001] The invention relates to a garden desertification soil structure improver and a preparation method thereof. Background technique [0002] With the acceleration of urbanization, the amount of urban sewage sludge in China is also increasing rapidly, and the annual discharge of dry sludge in my country is about 5.0×10 6 t. Because there is no stable and reasonable disposal outlet for a large amount of sludge, it invades people's already tense living space and causes secondary pollution. Therefore, the sludge problem has attracted great attention from governments all over the world, and the research on sludge treatment and utilization technology has also become an important environmental protection topic that experts and scholars pay attention to. [0003] At present, the treatment and disposal methods of sludge at home and abroad mainly include landfill, incineration, land use, agricultural use of sludge, and use as building materials. In the United St...

Claims

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Application Information

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IPC IPC(8): C09K17/40C05G3/04A01B79/02C09K101/00C09K105/00C05G3/80
CPCA01B79/02C05G3/80C09K17/40C09K2101/00C09K2105/00
Inventor 南丽丽郭全恩
Owner GANSU AGRI UNIV
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