Waste solid garbage treatment method

Abstract

The invention discloses a waste solid garbage treatment method which comprises the following steps: S1, firstly cutting waste solid garbage into small blocks, and then further crushing; s2, the solid waste is put into a sodium thiosulfate solution to be soaked for color fading and bleaching of black potassium iodide on the solid waste; s3, after the solid waste is bleached, discharging the rinsed sodium thiosulfate solution, recycling the rinsed sodium thiosulfate solution into another container for continuous use, and adding a dissolving agent to enable the solid waste to be soaked in the dissolving agent so as to dissolve boric acid on the solid waste; and S4, after the boric acid on the solid waste is fully dissolved, the dissolving agent is discharged, and then the solid waste is fully washed with clear water. According to the scheme, the waste solid garbage is mainly crushed, bleached and cleaned, so that impurities and pigments on the solid garbage are removed, the solid garbage is bleached into clean white, and subsequent recycling or other further processing treatment is facilitated.

Description

Technical Field

[0001] The invention relates to the field of garbage disposal, in particular to a method for disposing abandoned solid garbage. Background Art

[0002] Solid waste refers to solid, semi-solid and other materials that have lost their original value or have not lost their value but have been discarded or abandoned during production, life and other activities. In the prior art, some methods for fixing waste are usually burying or incinerating, which will pollute the environment and cause waste of resources, so it needs to be optimized and improved. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a method for treating waste solid waste.

[0004] The technical solution of the present invention is as follows: A method for treating waste solid waste, characterized in that it comprises the following steps:

[0005] S1, cutting the discarded solid waste into small pieces and then further crushing them;

[0006] S2, soaking the crushed solid waste in a sodium thiosulfate solution to decolorize and bleach the black potassium iodide on the solid waste, wherein the ratio of water to sodium thiosulfate in the sodium thiosulfate solution is 100:3, the temperature of the sodium thiosulfate solution is 40-45° C., and the soaking time of the solid waste is 5-7 hours;

[0007] S3. After the solid waste is bleached, the rinsed sodium thiosulfate solution is discharged and recycled into another container for continued use. When the sodium thiosulfate solution is exhausted, a dissolving agent is added to allow the solid waste to be immersed in the dissolving agent to dissolve the boric acid on the solid waste.

[0008] S4. When the boric acid on the solid waste is fully dissolved, discharge the solvent and then rinse the solid waste fully with clean water.

[0009] Furthermore, in step S1, a guillotine is used to cut the discarded solid waste into small pieces, and then a shredder is used to further crush the pieces.

[0010] Further, in step S3, the dissolving agent includes a sodium bicarbonate aqueous solution and a hydrochloric acid aqueous solution. After the sodium thiosulfate solution is discharged, the sodium bicarbonate aqueous solution is first added, and the solid waste is immersed in the sodium bicarbonate aqueous solution with a pH value of 10-11. After soaking for 2 hours, the sodium bicarbonate aqueous solution is discharged, and then the hydrochloric acid aqueous solution is added, and the solid waste is immersed in the hydrochloric acid aqueous solution for neutralization until the pH value reaches neutral;

[0011] Alternatively, the solvent is a methanol solution. After the sodium thiosulfate solution is exhausted, a methanol solution having a concentration of 50% and a temperature above 65° C. is added, and the solid waste is immersed in the methanol solution. After immersion for 1 hour, the methanol solution is discharged.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This solution mainly involves crushing, bleaching and washing the waste solid waste to remove impurities and pigments on the solid waste, so that the solid waste is bleached into a clean white color, which is convenient for subsequent recycling or other further processing.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0016] Figure 1 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figure 1 A method for treating solid waste as shown comprises the following steps:

[0019] S1. Cut the waste solid waste into small pieces and then further crush them. In specific applications, a guillotine can be used to cut the waste solid waste into small pieces, and then a shredder can be used to further crush them, so that the solid waste can be finely processed to facilitate subsequent full bleaching.

[0020] S2. Soaking the crushed solid waste in a sodium thiosulfate solution to decolorize and bleach the black potassium iodide on the solid waste, wherein the ratio of water to sodium thiosulfate in the sodium thiosulfate solution is 100:3, the temperature of the sodium thiosulfate solution is 40-45° C., and the soaking time of the solid waste is 5-7 hours.

[0021] Sodium thiosulfate solution has a bleaching effect, and the bleaching principle is mainly based on its characteristics as a reducing agent. During the bleaching process, sodium thiosulfate (Na2S2O3) destroys the chromophores of organic colored substances through reduction, reducing them to colorless molecules. Sodium thiosulfate solution has low cost of use, mild bleaching, is not easy to pollute the environment, and has little damage to solid waste.

[0022] S3. After the solid waste is bleached, the rinsed sodium thiosulfate solution is discharged and recycled into another container for continued use. When the sodium thiosulfate solution is exhausted, a dissolving agent is added to allow the solid waste to be immersed in the dissolving agent to dissolve the boric acid on the solid waste.

[0023] The dissolving agent includes sodium bicarbonate aqueous solution and hydrochloric acid aqueous solution. When the sodium thiosulfate solution is released, the sodium bicarbonate aqueous solution is added first, and the solid waste is immersed in the sodium bicarbonate aqueous solution with a pH value of 10-11. After soaking for 2 hours, the sodium bicarbonate aqueous solution is discharged, and then the hydrochloric acid aqueous solution is added, and the solid waste is immersed in the hydrochloric acid aqueous solution for neutralization until the pH value reaches neutral.

[0024] Alternatively, the solvent is a methanol solution. After the sodium thiosulfate solution is exhausted, a methanol solution having a concentration of 50% and a temperature above 65° C. is added, and the solid waste is immersed in the methanol solution. After immersion for 1 hour, the methanol solution is discharged.

[0025] S4. When the boric acid on the solid waste is fully dissolved, discharge the solvent and then rinse the solid waste with clean water. At this time, the impurities and pigments on the solid waste are removed and bleached into a clean white color, which is convenient for subsequent recycling or other further processing.

[0026] In summary, this scheme mainly involves crushing, bleaching and washing the waste solid waste to remove impurities and pigments on the solid waste, so that the solid waste is bleached into a clean white color, which is convenient for subsequent recycling or other further processing.

[0027] Although a portion of the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations to these embodiments are within the scope of protection of the claims of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A method for treating solid waste, characterized in that: The following steps are involved: S1, cutting the discarded solid waste into small pieces and then further crushing them; S2, soaking the crushed solid waste in a sodium thiosulfate solution to decolorize and bleach the black potassium iodide on the solid waste, wherein the ratio of water to sodium thiosulfate in the sodium thiosulfate solution is 100:3, the temperature of the sodium thiosulfate solution is 40-45° C., and the soaking time of the solid waste is 5-7 hours; S3. After the solid waste is bleached, the rinsed sodium thiosulfate solution is discharged and recycled into another container for continued use. When the sodium thiosulfate solution is exhausted, a dissolving agent is added to allow the solid waste to be immersed in the dissolving agent to dissolve the boric acid on the solid waste. S4. When the boric acid on the solid waste is fully dissolved, discharge the solvent and then rinse the solid waste fully with clean water.

2. The method for treating solid waste according to claim 1, characterized in that: In step S1, a guillotine is used to cut the discarded solid waste into small pieces, and then a shredder is used to further crush them.

3. The method for treating solid waste according to claim 1, characterized in that: In step S3, the dissolving agent includes a sodium bicarbonate aqueous solution and a hydrochloric acid aqueous solution. After the sodium thiosulfate solution is discharged, the sodium bicarbonate aqueous solution is first added, and the solid waste is immersed in the sodium bicarbonate aqueous solution with a pH value of 10-11. After soaking for 2 hours, the sodium bicarbonate aqueous solution is discharged, and then the hydrochloric acid aqueous solution is added, and the solid waste is immersed in the hydrochloric acid aqueous solution for neutralization until the pH value reaches neutral; Alternatively, the solvent is a methanol solution. After the sodium thiosulfate solution is exhausted, a methanol solution having a concentration of 50% and a temperature above 65° C. is added, and the solid waste is immersed in the methanol solution. After immersion for 1 hour, the methanol solution is discharged.

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