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Design and construction of a mobile activated carbon regenerator system

, : Design and construction of a mobile activated carbon regenerator system. Journal of Hazardous Materials 18(2): 207-210

Activated carbon adsorption has become a standard treatment for the cleanup of contaminated water streams. To facilitate such cleanups, mobile carbon adsorption units have been constructed and are now in use. Such units can be moved to spill sites or other points requiring water cleanup. Their primary drawback is the logistics associated with the disposal of the spent (contaminated) carbon and its replenishment. The adaptation of adsorption systems to a mobile base suggested that regeneration systems could be similarly adapted. A program was undertaken to assess the feasibility of such adaptation and to design and build a mobile carbon regeneration unit that would also incorporate an incinerator and scrubber system to degrade and dispose of the offgases. A system was designed and built based on technology developed for the fabrication of a laboratory-sized regenerator. Housed in a standard van-type trailer, the system met all weight and size limitations for over-the-road operation. The system includes a rotating barrel kiln to regenerate the carbon thermally, an incinerator or afterburner and a scrubber to treat the offgases, and a separator to reclaim the reactived carbon granules. Test runs using spent carbon from treatment of a spill were quite successful. The carbon was returned to essentially 100% activity, with an 88% volume recovery. The unit has been delivered to EPA for their use.


DOI: 10.1016/0304-3894(88)85024-6

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