Lignite-aided sewage treatment is based on absorption of dissolved pollutants by activated carbon. Settling sludge is removed and dried into cakes that are pyrolyzed with lignites to yield activated carbon. Lignite is less expensive than activated carbon previously used to supplement pyrolysis yield.
Less-costly activated carbon for sewage treatment
NASA Tech Briefs ; 1 , 4
1977-03-01
Miscellaneous
No indication
English
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