A kind of recycling method of waste powder activated carbon

The technology of powder activated carbon and filter cake is applied in the field of regeneration and utilization of waste powder activated carbon to achieve the effect of good degradation effect, low energy consumption and high activity.

Active Publication Date: 2015-12-09
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AI-Extracted Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the processing problem of waste powder activated carb...
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The invention discloses a recycling method of waste powdered activated carbon. According to the technical scheme, the method comprises the following steps: soaking the waste powdered activated carbon generated during the refining of sodium glutamate with a hydrochloric acid in a pickling tank so as to remove partial ash and ferric salt impurities; and adding microorganisms for biological regeneration under the action of an electric field, thus finally preparing regenerated activated carbon. As the method is used, the purpose of treating the waste powdered activated carbon during the production of the sodium glutamate is realized; the recycling of resources is realized; the production cost is decreased. Thus, the significant economic and environment-friendly benefits are obtained.

Application Domain

Other chemical processesCombustible gas purification +1

Technology Topic

Activated carbonEnvironmental chemistry +6


  • Experimental program(1)

Example Embodiment

[0040] The specific surface area of ​​the activated carbon finally obtained in Example 1 is 1118.5m 2 /g, the iodine adsorption value is 808.1mg/g, the methylene blue adsorption value is 210.5mg/g, and the regeneration rate is 90%.
[0041] A comparative analysis of the quality of activated carbon before and after recovery is shown in Table 1 below:
[0042] Table 1
[0043] project Xintan Charcoal after recovery Exterior Black fine powder Black fine powder Identify Positive reaction Positive reaction Decolorizing power (0.1g de-0.15% anhydrous Hypocyanidin solution) ml, ≧ 10.0 10.0 Iron salt (%)≦ 0.10 0.10 Heavy metal (%)≦ 0.003 0.003 Water-soluble residue 0.32 0.39 Sulfide No reaction No reaction
[0044] Hulunbuir Northeast Fufeng Biotechnology Co., Ltd. has an annual output of 200,000 tons of sodium glutamate, and the process produces 5,000 tons of waste powder activated carbon. After the activated carbon of the present invention is used for regeneration, the waste powdered activated carbon generated in the production process is processed and regenerated, and then reused in the production and recycling of sodium glutamate, which saves nearly 40 million yuan in cost every year and avoids secondary pollution of waste powdered activated carbon. Brings significant economic, social and environmental benefits.


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Description & Claims & Application Information

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