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Modified clay base water-guiding materials and process for preparing same

A clay and water technology, applied in soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., can solve the problems of lack of water for vegetation, difficult to survive, and insufficient utilization of clay and fly ash.

Inactive Publication Date: 2006-12-27
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In order to solve the current problem that clay and fly ash are not fully utilized in the fields of agriculture and forestry, and the problem that vegetation in arid areas and desertification areas is difficult to survive due to severe water shortage, the invention provides a clay-based water diversion body material. Provide the preparation method of the clay-based water diversion body material

Method used

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  • Modified clay base water-guiding materials and process for preparing same
  • Modified clay base water-guiding materials and process for preparing same
  • Modified clay base water-guiding materials and process for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The formula that present embodiment adopts is as follows:

[0041] Fly ash: clay = 5:95.

[0042] Described clay refers to common clay.

[0043] The preparation method is as follows:

[0044] Weigh the fly ash and clay according to the ratio and mix them evenly.

[0045] The specific experimental steps are as follows:

[0046] 1) prepare the mud containing soil particle size less than 0.15mm at the tree planting site;

[0047] 2) A plastic film is made into a cylindrical outer cylinder.

[0048] 3) Put the mixture of fly ash and soil into the outer cylinder, and seal both ends (water diversion body);

[0049] 4) Drill vertical holes down to the underground wet layer at the bottom of the dug tree pit;

[0050] 5) Open the two ends of the sealed water diversion body and put it into the vertical hole;

[0051] 6) Plant seedlings in the tree pit and pour enough water once.

[0052] The use of the novel modified clay provided by the invention can effectively solve th...

Embodiment 2

[0054] The formula that present embodiment adopts is as follows:

[0055] Fly ash: clay = 25:75.

[0056] The clay refers to the aluminum crosslinking agent modified clay.

[0057] The preparation method is as follows:

[0058] Weigh the fly ash and aluminum crosslinking agent modified clay according to the ratio and mix them evenly.

[0059] The preparation method of aluminum crosslinking agent modified clay is as follows:

[0060] 1) Prepare 1.0mol / L NaOH solution and 0.5mol / L AlCl 3 solution l;

[0061] 2) Under stirring, slowly add the prepared NaOH solution to an equal volume of AlCl 3 in solution;

[0062] 3) Aging at 70°C for 4 hours and aging at room temperature for 2 weeks to obtain a floc crosslinking agent;

[0063] 4) drying the clay, pulverizing it, passing through a 150-mesh sieve, and preparing a clay suspension with a concentration of 15%;

[0064] 5) Dilute the prepared cross-linking agent to 0.2mol L -1 The solution is slowly added dropwise to the cl...

Embodiment 3

[0076] The formula that present embodiment adopts is as follows:

[0077] Fly ash: clay = 5:95.

[0078] The clay refers to the aluminum crosslinking agent modified clay.

[0079] The preparation method is as follows:

[0080] Weigh the fly ash and polyhydroxy aluminum ion modified clay according to the ratio, and mix them evenly.

[0081] The preparation method of aluminum crosslinking agent modified clay is as follows:

[0082] 1) Prepare 1.0mol / L NaOH solution and 0.5mol / L AlCl 3 solution l;

[0083] 2) Under stirring, slowly add the prepared NaOH solution to an equal volume of AlCl 3 in solution;

[0084] 3) Aging at 70°C for 4 hours and aging at room temperature for 2 weeks to obtain a floc crosslinking agent;

[0085] 4) drying the clay, pulverizing it, passing through a 150-mesh sieve, and preparing a clay suspension with a concentration of 15%;

[0086] 5) Dilute the prepared cross-linking agent to 0.2mol L -1 The solution is slowly added dropwise to the clay ...

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Abstract

The invention relates the soil-modified material, especially the modified clay water diversion material. The material comprises coal ash and clay, the ratio of which is 5-25: 75-95. The invention also provides the preparing method. The modified clay can solve the problem that coal ash and clay are not full used, and the plant is hard to survival in arid area and desert. The invention solves the problems of re-using garbage and water deprivation in desert.

Description

Technical field: [0001] The invention relates to a soil modification material, in particular to a modified clay-based water diversion body material and a preparation method thereof. Background technique: [0002] my country is the most populous developing country in the world and the most seriously affected by desertification. According to the calculation method of the humidity index recommended by the United Nations Convention to Combat Desertification, the dryland area in my country is about 3317032.2km 2 , accounting for 34.6% of the country's land area, distributed in 18 provinces (autonomous regions, municipalities) and 470 counties (cities, banners) across the country, of which the total area of ​​sub-humid and dry areas is 751,161.9km 2 , accounting for 7.8% of the country's land area, the total area of ​​the semi-arid area is 1139214.2km 2 , accounting for 11.9% of the country's land area, the total area of ​​the arid area is 1426656.1km 2 , accounting for 14.9% o...

Claims

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Application Information

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IPC IPC(8): C09K17/02C09K105/00
Inventor 张增志
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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