<abstract xmlns="http://www.w3.org/1999/xhtml">Adsorption of Cu(II) and Ni(II) ions onto the waste powdered activated sludge biomass (PWB), which was obtained from the biological wastewater treatment plant, was investigated in this experimental study. The effects of contact time, pH, temperature, initial sorbate and sorbent concentrations on the adsorption were determined. The BET surface area, pore volume, and pore diameter of PWB were found to be about 0.51 m2/g, 0.0053 cm3/g, and 41.4 nm, respectively. Considering the R2 value, qexp and qcal, the Langmuir and Freundlich models were well described for Cu(II) and Ni(II) adsorption, respectively. The adsorption mechanism of Cu(II) and Ni(II) onto the PWB could be better simulated by the pseudo-second-order kinetic mechanism than the pseudo-fi rst-order, intra particle diffusion and Elovich models. Thermodynamic aspects of the adsorption of heavy metals were also investigated. Considering the applied desorbing agents for reuse of PWB for Ni(II) recovery, desorption cycle is not feasible due to the deterioration of the PWB structure.</abstract>

Adsorption of Cu(II) and Ni(II) ions onto the waste powdered activated sludge biomass (PWB), which was obtained from the biological wastewater treatment plant, was investigated in this experimental study. The effects of contact time, pH, temperature, initial sorbate and sorbent concentrations on the adsorption were determined. The BET surface area, pore volume, and pore diameter of PWB were found to be about 0.51 m2/g, 0.0053 cm3/g, and 41.4 nm, respectively. Considering the R2 value, qexp and qcal, the Langmuir and Freundlich models were well described for Cu(II) and Ni(II) adsorption, respectively. The adsorption mechanism of Cu(II) and Ni(II) onto the PWB could be better simulated by the pseudo-second-order kinetic mechanism than the pseudo-fi rst-order, intra particle diffusion and Elovich models. Thermodynamic aspects of the adsorption of heavy metals were also investigated. Considering the applied desorbing agents for reuse of PWB for Ni(II) recovery, desorption cycle is not feasible due to the deterioration of the PWB structure.

Biosorption of Cu2+ and Ni2+ Ions From Aqueous Solutions Using Waste Dried Activated Sludge Biomass

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Biosorption of Cu and Ni Ions From Aqueous Solutions Using Waste Dried Activated Sludge Biomass

Adsorption of Cu(II) and Ni(II) ions onto the waste powdered activated sludge biomass (PWB), which was obtained from the biological wastewater treatment plant,...

Biosorption of Cu²⁺ and Ni²⁺ Ions From Aqueous Solutions Using Waste Dried Activated Sludge Biomass

Publié en ligne: 17 oct. 2018

Pages: 20 - 28

DOI: https://doi.org/10.2478/pjct-2018-0034

Mots clés
adsorption, copper, nickel, waste biomass

© 2018 Sukru Aslan, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Biosorption of Cu2+ and Ni2+ Ions From Aqueous Solutions Using Waste Dried Activated Sludge Biomass

Publié en ligne: 17 oct. 2018

Pages: 20 - 28

DOI: https://doi.org/10.2478/pjct-2018-0034

Mots clésadsorption, copper, nickel, waste biomass

© 2018 Sukru Aslan, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Biosorption of Cu²⁺ and Ni²⁺ Ions From Aqueous Solutions Using Waste Dried Activated Sludge Biomass

Mots clés
adsorption, copper, nickel, waste biomass