Dried activated sludge as an appropriate biosorbent for removal of copper (II) ions

Zare, Hossein; Heydarzade, Hamid; Rahimnejad, M.; Tardast, Ali; Seyfi, Meysam; Peyghambarzadeh, S.M.

doi:10.1016/j.arabjc.2012.11.019

Cited by 21 publications

(9 citation statements)

References 26 publications

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“…Several analytical methods have been pointed out and used for the removal of heavy metals from aqueous solutions. These include chemical precipitation, ion exchange, ultra-filtration, reverse osmosis, electrodialysis and adsorption (Reddy et al 2014;Zare et al 2015;Banerjee et al 2016). These methods have some setbacks due to the inherent operational problems they possess.…”

Section: Introductionmentioning

confidence: 99%

Adsorption isotherm, kinetic and thermodynamic studies for the removal of Pb(II), Cd(II), Zn(II) and Cu(II) ions from aqueous solutions using Albizia lebbeck pods

et al. 2019

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Powdered adsorbent prepared from Albizia lebbeck pods as agricultural waste has been used for the adsorption of Pb(II), Cd(II), Zn(II) and Cu(II) ions from aqueous solutions. The powdered adsorbent was characterized by X-ray diffraction, Fourier transform infrared spectroscopy and Brunauer-Emmett-Teller. Effects of various parameters like contact time, solution pH, initial concentration dosage and temperature were investigated on a batch adsorption system. Equilibrium and kinetic experiments were carried out at the optimum pH of 6, 8 and 10 at 29 °C using particle size of 250 μm for Cd(II), Pb(II), Zn(II) and Cu(II) ions. Changes in free energy, enthalpy and entropy were also evaluated. The adsorption data fitted well with the Langmuir isotherm model with correlation coefficient (R 2 > 0.94), whereas the adsorption kinetics followed the pseudo-second-order kinetics. The thermodynamic parameters proved that adsorption of metal ions is endothermic and non-spontaneous at low temperatures, while spontaneity occurred at higher temperatures. This study shows that powdered Albizia lebbeck pods prove to be a promising inexpensive adsorbent for metal ion removal from aqueous solutions.

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Section: Introductionmentioning

confidence: 99%

Adsorption isotherm, kinetic and thermodynamic studies for the removal of Pb(II), Cd(II), Zn(II) and Cu(II) ions from aqueous solutions using Albizia lebbeck pods

et al. 2019

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“…Where C0 and Ct (mg/L) are the initial and final concentrations of heavy metals in solution, respectively, whereas V (L) and m (g) are the solution volume and biosorbent mass, respectively (Reddy et al 2011;Yasemin and Zeki 2007;Zare et al 2015).…”

Section: Absorption Processmentioning

confidence: 99%

“…Where C0 and Ct (mg/L) are the initial and final concentrations of heavy metal ions in solution, respectively (Zare et al 2015). Absorption capacity (Qt) is the amount of heavy metals absorbed by the biosorbent.…”

Section: Absorption Processmentioning

confidence: 99%

Reducing hazardous heavy metal ions using mangium bark waste

Khabibi

Syafii

Sari

2016

Environ Sci Pollut Res

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The objective of this study was to evaluate the characteristics of mangium bark and its biosorbent ability to reduce heavy metal ions in standard solutions and wastewater and to assess changes in bark characteristics after heavy metal absorption. The experiments were conducted to determine heavy metal absorption from solutions of heavy metals alone and in mixtures as well as from wastewater. The results show that mangium bark can absorb heavy metals. Absorption percentages and capacities from single heavy metal solutions showed that Cu(2+) > Ni(2+) > Pb(2+) > Hg(2+), while those from mixture solutions showed that Hg(2+) > Cu(2+) > Pb(2+) > Ni(2+). Wastewater from gold mining only contained Cu, with an absorption percentage and capacity of 42.87 % and 0.75 mg/g, respectively. The highest absorption percentage and capacity of 92.77 % and 5.18 mg/g, respectively, were found for Hg(2+) in a mixture solution and Cu(2+) in single-metal solution. The Cu(2+) absorption process in a single-metal solution changed the biosorbent characteristics of the mangium bark, yielding a decreased crystalline fraction; changed transmittance on hydroxyl, carboxyl, and carbonyl groups; and increased the presence of Cu. In conclusion, mangium bark biosorbent can reduce hazardous heavy metal ions in both standard solutions and wastewater.

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“…Therefore, it can be concluded that the adsorption of Cu 2+ ions onto SAC is a pseudo-second-order reaction model. This suggests that the rate limiting step is chemisorption or chemical adsorption that involves valence forces through electrons exchange between the adsorbent (SAC) and the adsorbate (Cu 2+ ) [16].…”

Section: Kinetic Studiesmentioning

confidence: 99%

Copper Metal Removal using Sludge Activated Carbon Derived from Wastewater Treatment Sludge

2018

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In Malaysia, according to perspective sludge production factor (SPF), wastewater treatment plants produces about 5.3 million m3 of sewage sludge annually, most of this sludge are being wasted (unused) in the landfills. This study employed the use of dry activated sludge as low-cost adsorbent for the removal of copper Cu (II) from wastewater. Adsorption of Cu (II) by sludge activated carbon (SAC) was conducted using batch tests. The effect of contact time and adsorbent dosage on the removal of Cu (II)) from wastewater were investigated. Initial metal concentration was maintained at 100 mg/L. The removal efficiency was found to have relations with the initial Cu (II) concentration, contact time as well as the SAC dosage. The adsorption kinetics of the Cu (II) by SAC was found to follow pseudo-second-order kinetic model, indicating chemisorption process. The adsorption isotherms studies indicated that the adsorption of Cu (II) by SAC adsorbent was well described by Langmuir isotherm model having correlation of determination (R2) value of 0.9985 at 12hrs equilibrium period. Optimum conditions for Cu (II) removal was achieved at SAC dosages of 10 g/L, contact time 12 hours and at initial Cu (II) concentration of 100 mg/L, respectively. The study indicated that sludge activated carbon can be used as an adsorbent for the removal of Cu (II) from aqueous solution.

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Dried activated sludge as an appropriate biosorbent for removal of copper (II) ions

Cited by 21 publications

References 26 publications

Adsorption isotherm, kinetic and thermodynamic studies for the removal of Pb(II), Cd(II), Zn(II) and Cu(II) ions from aqueous solutions using Albizia lebbeck pods

Adsorption isotherm, kinetic and thermodynamic studies for the removal of Pb(II), Cd(II), Zn(II) and Cu(II) ions from aqueous solutions using Albizia lebbeck pods

Reducing hazardous heavy metal ions using mangium bark waste

Copper Metal Removal using Sludge Activated Carbon Derived from Wastewater Treatment Sludge

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