Comparative study of differently treated animal bones for Co2+ removal

Dimović, Slavko; Smičiklas, Ivana; Plećaš, I.; Antonović, Dušan; Mitrić, Miodrag

doi:10.1016/j.jhazmat.2008.08.013

Cited by 119 publications

(97 citation statements)

References 34 publications

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“…These results indicated that the bovine bone char could be characterized as a mesoporous material (LeyvaRamos et al 2007;Dimovic et al 2009;Wilson et al 2003).…”

Section: Adsorption Isotherm Modelsmentioning

confidence: 98%

“…According to Giles et al (1974), who proposed a general model of adsorption isotherms from solution, four main isotherm forms are commonly observed. These include the S-type isotherm, which initially shows a low affinity for the adsorbate by the adsorbent but increasing adsorption as the surface of the adsorbent becomes covered by adsorbate molecules.…”

Section: Adsorption Isotherm Modelsmentioning

confidence: 99%

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Characterization of the Adsorption of 2,4-Dinitrophenol from Aqueous Solution onto Bovine Bone Char by Immersion Calorimetry

Murillo-Acevedo

Giraldo

Moreno–Piraján

2010

Adsorption Science & Technology

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ABSTRACT:The immersion enthalpies of bovine bone char in aqueous solutions of 2,4-dinitrophenol (DNP) of 10, 30, 50, 70 and 100 mg/ᐉ concentration were determined. The results showed that the amount of DNP adsorbed and the variation in the immersion enthalpy depended upon the concentration of the solution. For low concentrations, both an increase in the immersion enthalpy and in the amount of DNP adsorbed occurred, whereas at high concentrations there was a corresponding decrease in the immersion enthalpy and the adsorption percentage.

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“…These results indicated that the bovine bone char could be characterized as a mesoporous material (LeyvaRamos et al 2007;Dimovic et al 2009;Wilson et al 2003).…”

Section: Adsorption Isotherm Modelsmentioning

confidence: 98%

Section: Adsorption Isotherm Modelsmentioning

confidence: 99%

Characterization of the Adsorption of 2,4-Dinitrophenol from Aqueous Solution onto Bovine Bone Char by Immersion Calorimetry

Murillo-Acevedo

Giraldo

Moreno–Piraján

2010

Adsorption Science & Technology

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“…The increase of specific surface area was found to be remarkable, however, 50 % of the overall value is accounted for carbon phase, which is less efficient and less selective cation sorbent than HAP. A systematic study on the influence of heating temperature (in the range 400-1000°C) on bone sorption properties was also performed [19,20]. Annealing at 400°C caused incomplete combustion of bone organic components.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the effects of treatment factors on the properties of bio-apatite materials

et al. 2014

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Animal bones have been studied as a resource of low-crystalline apatite for immobilization of toxic heavy metals. Chemical and thermal treatments can be applied for selective removal of bone organic constituents. In this study, the impact of different treatment factors was determined by experimental design methodology, and comparison of the estimated effects was performed in order to optimize the treatment conditions. Fractional factorial design with five variables at two levels was applied for factors screening. The type of chemical reagent (H 2 O 2 or NaOH), its concentration (0.1 or 2 mol/L), reaction temperature (20 or 60°C), contact time (1 or 3 h) and sample annealing (without or at 400°C) were considered as process variables. Structural properties of bone sorbents, loss of ignition, point of zero charge, surface functional groups, specific surface area, chemical composition, and Cd 2? sorption efficiency, were selected as system responses. Samples significantly differed in respect to the organic phase content and composition, thus mechanisms of Cd 2? sorption were complex. Statistical analysis has revealed that, between all studied factors, temperature treatment was the most important for sorbents increased specific surface area, porosity and cation sorption. Furthermore, NaOH was more effective than H 2 O 2 , while the effects produced by variation of other factors were less pronounced. The highest proportion of bio-apatite with desired low crystallinity and high specific surface area was achieved by synergetic effects of chemical treatment with NaOH and thermal treatment at 400°C.

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“…Therefore, it is of great interest to explore the possibilities of turning wastes into valuable products. The use of modified waste materials as sorbents has attracted much attention (Bac et al, 2010, Chiang et al, 2011, given their large specific surface area, high sorption capacity and good cation exchange capability that help to adsorb heavy metals from aqueous media (Dimović et al, 2009). Potential applications of these sorbents include direct treatment of heavy metal laden streams (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…The incentives to use the waste-to-product valorization concept for the industry are to minimize the production and disposal costs. Synthetic zeolites have large specific surface area, high adsorption capacity and good cation exchange capability that help to reduce heavy metal concentration in aqueous media (Dimović et al, 2009). …”

Section: Introductionmentioning

confidence: 99%

Waste Derived Sorbents and Their Potential Roles in Heavy Metal Remediation Applications

Chiang

Ghyselbrecht

Gerven

et al. 2013

E3S Web of Conferences

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Abstract. Inorganic waste materials that have the suitable inherent characteristics could be used as precursors for the synthesis of micro-and mesoporous materials, which present great potential to be re-utilized as sorbent materials for heavy metal remediation. Three inorganic waste materials were studied in the present work: water treatment residuals (WTRs) from an integrated drinking water/wastewater treatment plant, and fly ash and bottom ash samples from a municipal solid waste incinerator (MSWI). These wastes were converted into three sorbent materials: ferrihydrite-like materials derived from drying of WTRs, hydroxyapatite-like material derived from ultrasound assisted synthesis of MSWI fly ash with phosphoric acid solution, and a zeolitic material derived from alkaline hydrothermal conversion of MSWI bottom ash. The performance of these materials, as well as their equivalent commercially available counterparts, was assessed for the adsorption of multiple heavy metals (As, Cd, Co, Ni, Pb, Zn) from synthetic solutions, contaminated sediments and surface waters; and satisfactory results were obtained. In addition, it was observed that the combination of sorbents into sorbent mixtures enhanced the performance levels and, where applicable, stabilized inherently mobile contaminants from the waste derived sorbents.

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Comparative study of differently treated animal bones for Co2+ removal

Cited by 119 publications

References 34 publications

Characterization of the Adsorption of 2,4-Dinitrophenol from Aqueous Solution onto Bovine Bone Char by Immersion Calorimetry

Characterization of the Adsorption of 2,4-Dinitrophenol from Aqueous Solution onto Bovine Bone Char by Immersion Calorimetry

Evaluation of the effects of treatment factors on the properties of bio-apatite materials

Waste Derived Sorbents and Their Potential Roles in Heavy Metal Remediation Applications

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