How to handle hydrogen cyanide-containing liquids or exhaust gases?
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As the title suggests, what is the appropriate way to handle liquids or exhaust gases containing cyanide ions?
Our company’s waste is burned in an exhaust gas incinerator.
We use the supported gas membrane (membrane desorption-chemical absorption) technique to remove hydrogen cyanide from the waste brine, and the resulting sodium cyanide aqueous solution is used as a raw material. If the wastewater contains very little iron ions, the hydrogen cyanide concentration can be reduced to below 1 ppm.
The exhaust gas containing cyanide can be burned directly! It’s not very clear when it comes to liquids!