Randhawa, N S and Jana, R K (2013) Lead sorption by sea nodule residue generated in reduction roasting – ammonia leaching. In: Mineral Processing Technology- 2013, 10-12 December 2013, Bhubaneshwar.
Residue generated in reduction roast – ammonia leaching of sea nodules has been utilised for the remediation of aqueous lead. Characterization of sea nodule residue (SNR) reveals fine granulometry (d50 = 11.4 µm) and high surface area of 66.7 m2 g-1. Batch adsorption experiments have been performed varying different parameters. Equilibrium experimental data fitted well in the Langmuir isotherm and derived maximum adsorption capacity (qm) of lead onto SNR has been found to be 840.34 mg Pb(II)/g SNR at 303 K. The qm enhanced to very high value of 2500 mgPb/gSNR upon raising the temperature to 323 K. The pseudo second-order model has been found applicable to the lead removal kinetics.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||adsorption; leach residue; lead; sea nodule.|
|Divisions:||Metal Extraction and Forming|
|Deposited By:||Dr. Navneet Singh Randhawa|
|Deposited On:||21 Nov 2014 14:30|
|Last Modified:||21 Nov 2014 14:31|
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