Activated carbon recovery
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The factory uses activated carbon to decolorize solutions, and a large amount of it is required. Considering cost efficiency, they want to reuse the activated carbon by recovering it. I heard that soaking used activated carbon in concentrated sulfuric acid and then rinsing the activated carbon with water can achieve its recovery. What is the specific process? Are there any other recycling methods?
Activated carbon is generally recovered by heating it with hot air; the activated carbon obtained in this way can usually only be used for lower-grade applications. You can refer to this post: Research on the Recovery of Butyl Acetate from Spent Activated Carbon and the Reuse of Activated Carbon http://bbs.hcbbs.com/viewthread.php?tid=15598&page=1#pid71736. Also, is the amount of activated carbon you are using excessive? Is there any possibility for optimization?
It’s difficult to handle recycled materials; sometimes the costs are too high, making them unsuitable for recycling
1. Heating using hot air. 2. Heating with an external heat source in a jacketed tank, followed by air-drying and cooling for dry storage.
Activated carbon regeneration equipment is divided into two types: powder carbon regeneration and granular carbon regeneration. The principle in both cases is to control the oxygen level at high temperatures in order to oxidize the substances adsorbed by the activated carbon into carbon dioxide, without causing damage to the activated carbon itself. After that, it is activated by superheated steam at nearly 1000 degrees Celsius; once cooled, the regenerated activated carbon is obtained. The loss rate due to burning during activated carbon regeneration in foreign equipment is around 5%. Specialized equipment must be used, and the activity of the regenerated activated carbon is almost identical to that of new activated carbon. However, it is best not to mix activated carbons that have absorbed different substances for regeneration – each type of activated carbon should be regenerated to retain the ability to absorb the same substances it originally absorbed. In this way, no waste activated carbon is produced, and the only substance emitted is carbon dioxide.
The fluidized bed approach can be considered.
If your activated carbon contains metals, I can help you recycle them. QQ: 45966605.
Calgon Carbon has established a specialized recycling factory in Suzhou; please contact me if you have any technical needs
You’re just waste carbon from some factory; recycling it internally is time-consuming and laborious. Let me recycle it instead. QQ344549568
Hello, we are Xinrui Chemical Technology Co., Ltd. located in Pingxiang City, Jiangxi Province. We specialize in the production of various types of filler products, including inert alumina ceramic balls, molecular sieves, activated alumina, ceramsite, ceramics, metal, and plastic fillers. Our company website is www.px*nrui.com; the contact person is Manager Deng, with phone number 18307992886. We can also provide various technical and process design solutions – feel free to call us for inquiries.