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Adsorption removal of cadmium and copper from aqueous solution by areca: a food waste.
J Hazard Mater. 2008 Sep 15; 157(2-3):490-5.JH

Abstract

Areca waste (AW) has been investigated as metal biosorbent for cadmium and copper from aqueous solution for its availability as food waste and also for its cellulosic matrix rich of potential metal binding active sites. The effect of various parameters on adsorption process such as contact time, solution pH, amount of AW and initial concentration of metal ions was studied at room temperature to optimize the conditions for maximum adsorption. Maximum metal sorption was found to occur at pH 5.6. Adsorption process revealed that the initial uptake was rapid and equilibrium was established about in 1h for cadmium and copper. The equilibrium sorption data for single metal systems at pH 5.6 were described by the Langmuir, Freundlich and D-R isotherm models. The adsorption isotherm studies clearly indicated that the adsorptive behaviour of metal ions on AW not only the Langmuir assumptions but also the Freundlich and the D-R assumptions. The highest value of Langmuir maximum uptake, (b), was found for cadmium (1.12 mg/g) and copper (2.84 mg/g). Similar Freundlich empirical constants, K, were obtained for cadmium (1.086) and copper (1.119). Ion-exchange and surface adsorption might be involved in the adsorption process of cadmium and copper. Desorption studies revealed that cadmium and copper can be easily removed from AW by altering the pH values of the solution using HNO(3), indicating that AW are a promising adsorbent for wastewater treatment.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Zheng W
College of Environmental Science and Engineering, Hunan University, Changsha, PR China.
Li XM
No affiliation info available
Wang F
No affiliation info available
Yang Q
No affiliation info available
Deng P
No affiliation info available
Zeng GM
No affiliation info available

MeSH

AdsorptionArecaCadmiumCopperHydrogen-Ion ConcentrationSolutionsTemperatureWater Pollutants, ChemicalWater Purification

Pub Type(s)

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

Language

eng

PubMed ID

18313210

Citation

Zheng, Wei, et al. "Adsorption Removal of Cadmium and Copper From Aqueous Solution By Areca: a Food Waste." Journal of Hazardous Materials, vol. 157, no. 2-3, 2008, pp. 490-5.
Zheng W, Li XM, Wang F, et al. Adsorption removal of cadmium and copper from aqueous solution by areca: a food waste. J Hazard Mater. 2008;157(2-3):490-5.
Zheng, W., Li, X. M., Wang, F., Yang, Q., Deng, P., & Zeng, G. M. (2008). Adsorption removal of cadmium and copper from aqueous solution by areca: a food waste. Journal of Hazardous Materials, 157(2-3), 490-5. https://doi.org/10.1016/j.jhazmat.2008.01.029
Zheng W, et al. Adsorption Removal of Cadmium and Copper From Aqueous Solution By Areca: a Food Waste. J Hazard Mater. 2008 Sep 15;157(2-3):490-5. PubMed PMID: 18313210.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorption removal of cadmium and copper from aqueous solution by areca: a food waste. AU - Zheng,Wei, AU - Li,Xiao-Ming, AU - Wang,Fei, AU - Yang,Qi, AU - Deng,Pin, AU - Zeng,Guang-Ming, Y1 - 2008/01/18/ PY - 2007/09/20/received PY - 2008/01/05/revised PY - 2008/01/07/accepted PY - 2008/3/4/pubmed PY - 2009/1/8/medline PY - 2008/3/4/entrez SP - 490 EP - 5 JF - Journal of hazardous materials JO - J Hazard Mater VL - 157 IS - 2-3 N2 - Areca waste (AW) has been investigated as metal biosorbent for cadmium and copper from aqueous solution for its availability as food waste and also for its cellulosic matrix rich of potential metal binding active sites. The effect of various parameters on adsorption process such as contact time, solution pH, amount of AW and initial concentration of metal ions was studied at room temperature to optimize the conditions for maximum adsorption. Maximum metal sorption was found to occur at pH 5.6. Adsorption process revealed that the initial uptake was rapid and equilibrium was established about in 1h for cadmium and copper. The equilibrium sorption data for single metal systems at pH 5.6 were described by the Langmuir, Freundlich and D-R isotherm models. The adsorption isotherm studies clearly indicated that the adsorptive behaviour of metal ions on AW not only the Langmuir assumptions but also the Freundlich and the D-R assumptions. The highest value of Langmuir maximum uptake, (b), was found for cadmium (1.12 mg/g) and copper (2.84 mg/g). Similar Freundlich empirical constants, K, were obtained for cadmium (1.086) and copper (1.119). Ion-exchange and surface adsorption might be involved in the adsorption process of cadmium and copper. Desorption studies revealed that cadmium and copper can be easily removed from AW by altering the pH values of the solution using HNO(3), indicating that AW are a promising adsorbent for wastewater treatment. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/18313210/Adsorption_removal_of_cadmium_and_copper_from_aqueous_solution_by_areca:_a_food_waste_ DB - PRIME DP - Unbound Medicine ER -