Tags

Type your tag names separated by a space and hit enter

Adsorption of Cd(II) and Cu(II) from aqueous solution by carbonate hydroxylapatite derived from eggshell waste.
J Hazard Mater. 2007 Aug 17; 147(1-2):534-9.JH

Abstract

Carbonate hydroxylapatite (CHAP) synthesized by using eggshell waste as raw material has been investigated as metal adsorption for Cd(II) and Cu(II) from aqueous solutions. The effect of various parameters on adsorption process such as contact time, solution pH, amount of CHAP and initial concentration of metal ions was studied at room temperature to optimize the conditions for maximum adsorption. The results showed that the removal efficiency of Cd(II) and Cu(II) by CHAP could reach 94 and 93.17%, respectively, when the initial Cd(II) concentration 80 mg/L and Cu(II) 60 mg/L and the liquid/solid ratio was 2.5 g/L. The equilibrium sorption data for single metal systems at room temperature could be described by the Langmuir and Freundlich isotherm models. The highest value of Langmuir maximum uptake, (b), was found for cadmium (111.1mg/g) and copper (142.86 mg/g). Similar Freundlich empirical constants, K, were obtained for cadmium (2.224) and copper (7.925). Ion exchange and surface adsorption might be involved in the adsorption process of cadmium and copper. Desorption experiments showed that CaCl2, NaCl, acetic acid and ultrasonic were not efficient enough to desorb substantial amount of metal ions from the CHAP. The results obtained show that CHAP has a high affinity to cadmium and copper.

Links

Publisher Full Text

Authors+Show Affiliations

Zheng W
College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China.
Li XM
No affiliation info available
Yang Q
No affiliation info available
Zeng GM
No affiliation info available
Shen XX
No affiliation info available
Zhang Y
No affiliation info available
Liu JJ
No affiliation info available

MeSH

AdsorptionCadmiumCarbonatesCopperDurapatiteEggsEnvironmental Restoration and RemediationIndustrial WasteWater Pollutants, ChemicalWater Purification

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17368932

Citation

Zheng, Wei, et al. "Adsorption of Cd(II) and Cu(II) From Aqueous Solution By Carbonate Hydroxylapatite Derived From Eggshell Waste." Journal of Hazardous Materials, vol. 147, no. 1-2, 2007, pp. 534-9.
Zheng W, Li XM, Yang Q, et al. Adsorption of Cd(II) and Cu(II) from aqueous solution by carbonate hydroxylapatite derived from eggshell waste. J Hazard Mater. 2007;147(1-2):534-9.
Zheng, W., Li, X. M., Yang, Q., Zeng, G. M., Shen, X. X., Zhang, Y., & Liu, J. J. (2007). Adsorption of Cd(II) and Cu(II) from aqueous solution by carbonate hydroxylapatite derived from eggshell waste. Journal of Hazardous Materials, 147(1-2), 534-9.
Zheng W, et al. Adsorption of Cd(II) and Cu(II) From Aqueous Solution By Carbonate Hydroxylapatite Derived From Eggshell Waste. J Hazard Mater. 2007 Aug 17;147(1-2):534-9. PubMed PMID: 17368932.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorption of Cd(II) and Cu(II) from aqueous solution by carbonate hydroxylapatite derived from eggshell waste. AU - Zheng,Wei, AU - Li,Xiao-ming, AU - Yang,Qi, AU - Zeng,Guang-ming, AU - Shen,Xiang-xin, AU - Zhang,Ying, AU - Liu,Jing-jin, Y1 - 2007/01/19/ PY - 2006/05/08/received PY - 2007/01/11/revised PY - 2007/01/12/accepted PY - 2007/3/21/pubmed PY - 2007/12/28/medline PY - 2007/3/21/entrez SP - 534 EP - 9 JF - Journal of hazardous materials JO - J Hazard Mater VL - 147 IS - 1-2 N2 - Carbonate hydroxylapatite (CHAP) synthesized by using eggshell waste as raw material has been investigated as metal adsorption for Cd(II) and Cu(II) from aqueous solutions. The effect of various parameters on adsorption process such as contact time, solution pH, amount of CHAP and initial concentration of metal ions was studied at room temperature to optimize the conditions for maximum adsorption. The results showed that the removal efficiency of Cd(II) and Cu(II) by CHAP could reach 94 and 93.17%, respectively, when the initial Cd(II) concentration 80 mg/L and Cu(II) 60 mg/L and the liquid/solid ratio was 2.5 g/L. The equilibrium sorption data for single metal systems at room temperature could be described by the Langmuir and Freundlich isotherm models. The highest value of Langmuir maximum uptake, (b), was found for cadmium (111.1mg/g) and copper (142.86 mg/g). Similar Freundlich empirical constants, K, were obtained for cadmium (2.224) and copper (7.925). Ion exchange and surface adsorption might be involved in the adsorption process of cadmium and copper. Desorption experiments showed that CaCl2, NaCl, acetic acid and ultrasonic were not efficient enough to desorb substantial amount of metal ions from the CHAP. The results obtained show that CHAP has a high affinity to cadmium and copper. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/17368932/Adsorption_of_Cd_II__and_Cu_II__from_aqueous_solution_by_carbonate_hydroxylapatite_derived_from_eggshell_waste_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(07)00109-4 DB - PRIME DP - Unbound Medicine ER -