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Bentonite tailing nutrient soil and preparation method thereof

A technology of bentonite tailings and nutrient soil, which is applied to fertilizers made of biological waste, applications, organic fertilizers, etc., can solve the problems of reducing production and transportation costs, unfavorable normal growth and development of seedlings, and large volume, and achieves improved activity. , Conducive to normal growth and development, low cost of preparation

Inactive Publication Date: 2017-09-08
句容康泰膨润土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, it is prepared by mixing fertile field soil and decomposed manure. There are also nutrient soils selected from imported high-quality peat and coconut bran mixed in a specific proportion. However, these nutrient soils have not undergone reasonable ingredients and strict disinfection. Conducive to the normal growth and development of seedlings
Because the treated nutrient soil is relatively light and loose, the conventional product of nutrient soil is relatively large, which is not conducive to reducing the cost of production and transportation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A bentonite tailings nutrient soil is prepared from the following raw materials in parts by weight: 30-33 parts of bentonite tailings, 20-25 parts of sludge, 0.3-0.9 parts of potassium permanganate, 0.3-0.9 parts of copper sulfate, 0.5-1.5 parts of ammonium sulfate, 0.1-0.4 parts of potassium dihydrogen phosphate, 2-5 parts of high-viscosity attapulgite clay, 2-5 parts of attapulgite ceramsite, 2-5 parts of peat, 1-3 parts of coconut peat, poly 0.1-1 parts of ethylene oxide resin.

[0023] A method for preparing bentonite tailings nutrient soil, comprising:

[0024] S1. Soak bentonite tailings and sludge in dilute sulfuric acid solution, acidify for 1 hour, and obtain acidified soil;

[0025] S2. Roasting the acidified soil at 250° C. for 3 hours, grinding it into granules to obtain a semi-finished product of acidified nutrient soil;

[0026] S3, mixing the acidified nutrient soil with the remaining raw materials, and naturally fermenting in a fermentation tank for 5 ...

Embodiment 2

[0030] A bentonite tailings nutrient soil is prepared from the following raw materials in parts by weight: 30-33 parts of bentonite tailings, 20-25 parts of sludge, 0.3-0.9 parts of potassium permanganate, 0.3-0.9 parts of copper sulfate, 0.5-1.5 parts of ammonium sulfate, 0.1-0.4 parts of potassium dihydrogen phosphate, 2-5 parts of high-viscosity attapulgite clay, 2-5 parts of attapulgite ceramsite, 2-5 parts of peat, 1-3 parts of coconut peat, poly 0.1-1 parts of ethylene oxide resin.

[0031] A method for preparing bentonite tailings nutrient soil, comprising:

[0032] S1, soaking bentonite tailings and sludge in dilute sulfuric acid solution, acidifying for 2 hours to obtain acidified soil;

[0033] S2. Roasting the acidified soil at 350° C. for 1 hour, grinding it into granules to obtain a semi-finished product of acidified nutrient soil;

[0034] S3, mixing the acidified nutrient soil with the remaining raw materials, and naturally fermenting in a fermentation tank fo...

Embodiment 3

[0038] A bentonite tailings nutrient soil is prepared from the following raw materials in parts by weight: 33-38 parts of bentonite tailings, 25-35 parts of sludge, 0.4-1.2 parts of potassium permanganate, 0.4-1.2 parts of copper sulfate, 0.7-2 parts of ammonium sulfate, 0.1-0.6 parts of potassium dihydrogen phosphate, 5-10 parts of high-viscosity attapulgite clay, 5-10 parts of attapulgite ceramsite, 5-10 parts of peat, 3-8 parts of coconut peat, poly 1-3 parts of ethylene oxide resin.

[0039] A method for preparing bentonite tailings nutrient soil, comprising:

[0040] S1. Soak bentonite tailings and sludge in dilute sulfuric acid solution, acidify for 1 hour, and obtain acidified soil;

[0041] S2. Roasting the acidified soil at 250° C. for 3 hours, grinding it into granules to obtain a semi-finished product of acidified nutrient soil;

[0042] S3, mixing the acidified nutrient soil with the remaining raw materials, and naturally fermenting in a fermentation tank for 5 d...

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PUM

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Abstract

The embodiment of the invention discloses bentonite tailing nutrient soil and a preparation method thereof, and relates to the field of nutrient soil preparation. The bentonite tailing nutrient soil is prepared from, by weight, 30-40 parts of bentonite tailings, 20-40 parts of sludge, 10-25 parts of nutritional supplements, 2-15 parts of high-viscosity attapulgite clay, 2-15 parts of attapulgite ceramsites, 2-15 parts of peat, 1-10 parts of plant fibers and 0.1-5 parts of super absorbent polymer. Firstly, bentonite and sludge are acidized, pathogenic bacteria are reduced, and the activity of bentonite and sludge are improved. The bentonite tailing nutrient soil includes a large amount of nitrogen, phosphorus, potassium and organic matter and various kinds of trace elements, can provide nutrient elements required by the growth of plants, and is conducive to the normal growth and development of plants, and the ecological environment is protected.

Description

technical field [0001] The invention relates to the field of nutrient soil preparation, in particular to a bentonite tailings nutrient soil and a preparation method thereof. Background technique [0002] Bentonite is a kind of clay rock, also known as montmorillonite clay rock, which often contains a small amount of illite, kaolinite, halloysite, chlorite, zeolite, quartz, feldspar, calcite, etc. Some bentonite is loose like soil, Some are dense and hard, and the main chemical components are silicon dioxide, aluminum oxide and water, and also contain iron, magnesium, calcium, sodium, potassium and other elements. Studies in recent years have confirmed that bentonite has certain nutritional value. A large amount of bentonite has been developed and used, however, many tailings cannot be used for various reasons. Therefore, how to utilize bentonite tailings has received more and more attention. [0003] Sludge is a kind of easily corrupt and smelly paste produced in the proc...

Claims

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Application Information

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IPC IPC(8): C05G3/00A01G9/10
CPCC05B7/00C05G3/00C05C3/00C05D1/00C05D5/00C05D9/00C05D9/02C05F5/002C05F7/00C05F11/04
Inventor 刘新兵刘长淼刘玉林
Owner 句容康泰膨润土有限公司
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