Excess cyanide levels in coking plants: which chemicals are most effective for removal?
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This post was last edited by liaifeng on 2020-2-20 at 19:24. Dear leaders, I have a question for you: In coking plants where the cyanide level is above the allowed limit, what chemicals can be used to effectively remove it, without causing the COD and ammonia nitrogen levels to exceed their limits, since only the cyanide level is problematic? Thank you
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There are many agents available to reduce cyanides now, but adding such agents is not the fundamental solution; the root cause should be identified instead. Check whether desulfurization liquid was added to the source of the cyanide-rich wastewater, or whether it is high-sulfur and high-cyanide wastewater.
May I ask, if additives are to be used, which ones would be effective?
Water containing cyanide can also be treated; I can’t remember the specific methods for doing so. You should ask a professional water treatment company or look it up in engineering manuals on water treatment
Excess cyanide in wastewater is indeed a problematic issue; it’s difficult to remove using conventional methods. I’ve looked up information but haven’t found any effective solutions. I think using multiple Fenton reactions or ozone might work
The source level must be too high; it needs to be addressed in advance. Relying solely on the wastewater treatment stage is not sufficient
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Your description of the process is also unclear, making it impossible to determine the cause of the high cyanide levels. It’s better to investigate the problem at its source; water quality should be tested step by step for each incoming stream of water. Relying on subsequent treatment methods not only increases costs but also has a significant impact on the biochemical system.