How to handle waste catalysts containing low levels of mercury
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How to dispose of spent catalysts? I heard that sodium hydrosulfide can be used to treat mercury-containing wastewater; does anyone here have the relevant operating procedures? Please!
The manufacturer is responsible for the recycling; as for what is done with the recycled materials, it should be asked of the manufacturer
I heard from a friend that generally, after recycling, it is burned to remove the carbon and recover the mercury contained within. (The specific details are not very clear.)
Sodium sulfide can be used to remove mercury from wastewater
It’s better to handle it according to the requirements of the environmental protection department! ! !
Generally, it is necessary to negotiate with the manufacturer when purchasing catalysts; for the recycling of used catalysts, a warehouse for hazardous chemicals must be established for temporary storage!
I’ve heard that mercury recycling is not feasible on an industrial scale; at present, only some of the discarded mercury is collected, rather than it being completely processed.
It can basically only be recycled by enterprises with **recycling qualifications, and the actual recycling process is also relatively simple.
The \"new technology for recovering mercury chloride from waste low-mercury catalysts and mercury-containing waste activated carbon using controlled-oxygen dry distillation\" is employed to recover mercury chloride from such waste materials, with a recovery efficiency of over 99%. The recovered mercury chloride can be fully used to reproduce new catalysts, thereby enabling maximum recycling of this substance.
There must be relevant procedures for recycling, regeneration, storage, and transportation
On the 9th floor, Haiyou is right; great! Two additional points: 1. The recycling of spent catalysts must be carried out by entities with environmental protection qualifications; 2. The new technology of \"Oxygen-control dry distillation for recovering mercury chloride and activated carbon from spent mercury catalysts\" enables closed-loop recovery, allowing both mercury chloride and activated carbon to be reused.