Disposal plans for waste coke and sludge in gasification wastewater treatment
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We are working on a wastewater treatment plan for a gasification plant, using activated coke for pre-treatment to absorb most of the COD as well as some large-molecule organic substances. As for what to do with the treated spent activated coke and the sludge from the subsequent treatment systems, are there any viable solutions available? We hope everyone can suggest some existing treatment methods; thank you~
It’s a new technology; I wonder how its development is going?
Crush, grind into pulp (powder), and return to the gasifier； Or it can be fed into the boiler for combustion, with the amount needing to be controlled.
The more mature method at present is incineration, where the material is sent into boilers to generate electricity or provide heat.
I know the method for treating sludge: it is dried to a moisture content of less than 40%, after which it can be fed into incinerators to generate electricity or provide heat. Specialized dryers for sludge – you can learn about their structural features and processing methods at http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1084827
Flocculants are added to the wastewater to convert unburned coal and ash into a filter cake; this filter cake is then added to the raw coal and fed into the gasification furnace, or it can be mixed with coal ash and sold directly