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Liquid compound fertilizer for restoration of mining wasteland with municipal domestic sludge and preparation method thereof

A technology of urban domestic sludge and domestic sludge, applied in the field of compound fertilizer, can solve the problems associated with odor, and achieve the effects of improving fertility, improving survival rate, and increasing growth amount.

Inactive Publication Date: 2011-10-05
王鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, there are toxic and harmful substances such as pathogenic bacteria, parasites and heavy metals in the sludge, and they are often accompanied by stench

Method used

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  • Liquid compound fertilizer for restoration of mining wasteland with municipal domestic sludge and preparation method thereof
  • Liquid compound fertilizer for restoration of mining wasteland with municipal domestic sludge and preparation method thereof
  • Liquid compound fertilizer for restoration of mining wasteland with municipal domestic sludge and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Weighing according to parts by weight: 180 grams of domestic sludge, 0.15 grams of ordinary calcium superphosphate, 0.1 grams of potassium nitrate, 0.15 grams of magnesium sulfate, 0.4 grams of ferrous sulfate, and 0.025 grams of boric acid.

[0051] The specific preparation method comprises the following steps:

[0052] 1) Weigh 0.15 grams of ordinary calcium superphosphate, add to 40 milliliters of water and dissolve to obtain liquid A;

[0053] 2) Weigh 0.15 grams of magnesium sulfate, and add it to 40 milliliters of water to dissolve to obtain liquid B;

[0054] 3) Weigh 0.025 grams of boric acid, add 40 milliliters of water to dissolve, and obtain liquid C;

[0055] 4) Weigh 0.4 g of ferrous sulfate, add 40 ml of water to dissolve, and obtain liquid D;

[0056] 5) Prepare a 1-liter container, add 600 ml of water, and then pour 180 grams of domestic sludge into the container while stirring to form a mud-water mixture to obtain liquid E;

[0057] 6) Weigh 0.1 g of...

Embodiment 2

[0059] Weighing according to parts by weight: 220 grams of domestic sludge, 0.2 grams of ordinary calcium superphosphate, 0.2 grams of potassium nitrate, 0.2 grams of magnesium sulfate, 0.6 grams of ferrous sulfate, and 0.035 grams of boric acid.

[0060] The specific preparation method comprises the following steps:

[0061] 1) Weigh 0.2 grams of ordinary calcium superphosphate, add to 40 milliliters of water and dissolve to obtain liquid A;

[0062] 2) Weigh 0.2 g of magnesium sulfate and add it to 40 ml of water to dissolve to obtain liquid B;

[0063] 3) Weigh 0.035 g of boric acid, add 40 ml of water to dissolve, and obtain liquid C;

[0064] 4) Weigh 0.6 g of ferrous sulfate, add 40 ml of water to dissolve, and obtain liquid D;

[0065] 5) Prepare a 1-liter container, add 600 ml of water, and then pour 220 grams of domestic sludge into the container while stirring to form a mud-water mixture to obtain liquid E;

[0066] 6) Weigh 0.2 g of potassium nitrate, add it dire...

Embodiment 3

[0068] Weigh according to parts by weight: 200 grams of domestic sludge, 0.18 grams of ordinary calcium superphosphate, 0.15 grams of potassium nitrate, 0.18 grams of magnesium sulfate, 0.5 grams of ferrous sulfate, and 0.030 grams of boric acid.

[0069] The specific preparation method comprises the following steps:

[0070] 1) Weigh 0.18 grams of ordinary calcium superphosphate, add to 40 milliliters of water and dissolve to obtain liquid A;

[0071] 2) Weigh 0.18 grams of magnesium sulfate, and add it to 40 milliliters of water to dissolve to obtain liquid B;

[0072] 3) Weigh 0.030 g of boric acid, add 40 ml of water to dissolve, and obtain liquid C;

[0073] 4) Weigh 0.5 g of ferrous sulfate, add 40 ml of water to dissolve, and obtain liquid D;

[0074] 5) Prepare a 1-liter container, add 600 ml of water, and then pour 200 grams of domestic sludge into the container while stirring to form a mud-water mixture to obtain liquid E;

[0075] 6) Weigh 0.15 g of potassium nit...

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Abstract

The invention relates to a liquid compound fertilizer for restoration of mining wasteland with municipal domestic sludge. The liquid fertilizer is prepared through the following steps: a solution A is prepared through weighing common calcium superphosphate and dissolving in water; a solution B is prepared through weighing magnesium sulfate and dissolving in water; a solution C is prepared throughweighing boric acid and adding water to dissolve; a solution D is prepared through weighing ferrous sulfate and adding water to dissolve; a solution E is prepared through adding the domestic sludge to a prepared container with added water with stirring to form a sludge-water mixture; and weighed potassium nitrate is directly added to the solution E, the prepared solution A, B, C, D are added to the solution E respectively, and water is added with uniform stirring. The method provided by the present invention allows the fertility of the mining wasteland to be improved, the survival rate of seedlings to be increased, the growth of the seedlings to be accelerated, the growth amount to be improved, the cost to be saved and the economic benefit to be improved.

Description

technical field [0001] The invention belongs to the field of compound fertilizers, and in particular relates to a liquid compound fertilizer for repairing abandoned mine lands by using urban domestic sludge. technical background [0002] The development and utilization of mineral resources not only played a huge role in promoting economic development, but also had a major impact on the earth's environment. The development and utilization of mineral resources will inevitably occupy and destroy a large amount of land and cause environmental pollution, which will cause serious damage to the original ecological environment and lead to a series of unavoidable environmental problems. The restoration of the ecological environment of the mining area has become an indispensable task in the development and production of the mining area, and is the key to the ecological security of the mining area and the sustainable development of the mining industry. For Shanxi, a province with larg...

Claims

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Application Information

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IPC IPC(8): C05G1/00
Inventor 王青杵王金潮
Owner 王鹏
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