Evaluation on Feasibility of Sintered Cattle Bone Powder as a Heavy Metal Adsorbent


Quite some bones of cows and pigs are discharged from home and restaurant industry as food wastes after cooking by boiling. This study conducted adsorption experiment of heavy metals using waste bones as an absorbent for recycling the waste bone and evaluated its feasibility. Sintered cattle bone (SCB) was manufactured in powder form after sintering at 550°C - 600°C and pulverizing, and crystal structure examined by XRD was similar to synthetic hydroxyl apatite. Adsorption equilibrium of single component such as Pb, Cd, and Zn was able to be expressed by isotherm equations of Langmuir, Freundlich, and Sips. Among them, Sips isotherm was accorded best. Also, IAST (ideal adsorbed solution theory) was used to predict multi-component adsorption equilibrium and correlation between those predicted values and empirical values was satisfactory. Adsorption affinity on SCB was in order of Pb, Cd, and Zn and it was corresponded with cases of activated carbon or synthetic hydroxyapatite. Finally, this study confirmed feasibility of SCB as an adsorbent of the heavy metal in real field of wastewater treatment.

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D. Kwak and M. Kim, "Evaluation on Feasibility of Sintered Cattle Bone Powder as a Heavy Metal Adsorbent," Materials Sciences and Applications, Vol. 4 No. 8A, 2013, pp. 12-17. doi: 10.4236/msa.2013.48A002.

Conflicts of Interest

The authors declare no conflicts of interest.


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