Abstract

Zahra Ahmari^1*, Morteza Khosravi² And Ali  Niazi³

DOI : http://dx.doi.org/10.13005/ojc/310238

In the present time study,dried activated sludge(DAS) and dried activated nano sludge(DANS) was used for the removal of Cu(II) from aqueous solution in a fixed-bed  reactor. The effect of important parameters including the flow rate and bed height were examined. Dried activated nano sludge column regeneration using 1 M concentration of HNO₃  has been studied.The Thomas model was used for the mathematical description of the adsorption of Copper at different flow rate  and various bed height to determine parameters of the column suitable for process design. Both exhaustion time and breakthrough time increased with increasing bed height, while the adsorption bed capacity decreased as the flow rate increased.

Dried activated sludge; Copper; Thomas model; Regeneration; Fixed-bed

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