Published Paper Details:

Abstract: This research work, treatment of sludge which is obtained from a tannery industries. The sludge consists of potentially toxic heavy metals and organisms, was analyzed, and the performance of solidification and stabilization (S/S) of the sludge was discussed. The toxic characteristics of the sludge were determined by means of extraction procedure toxicity test the standards specify by EPEPA 1311 & 200.8 S/S investigation were conducted using fly ash alone and fly ash with Portland cement to solidify the sludge containing high concentration to total organic subtances Cr, Pb, Cu, Zn, Ni, Fe and Cl. The waste binder ratios of 72 sludge specimens were kept below 0/100 and 30 / 100, in both fly ash and fly ash with OPC. Each the specimens were cured at room temperature for 3,7,14 and 28 days. The compressive strength of these two sets of specimens were determined also the feasibility of using the solidified. Tannery sludge in to safe landfill. The compressive strength values indicate the dilution of sludge mass in to rainwater. The heavy metal were identified which were lower than the standard concentration in EPA and RCRA (Recourse, conservation & recovery acts) recommendations.