The Adsorption of Heavy Metal from Aqueous Solutions onto the Porous Biomorphic-Genetic Composite of Hydroxyapatite/Carbon with Eucalyptus and Bamboo Template

This study used two types of plant, eucalyptus and bamboo, to produce sorbents for copper (II), cadmium (II), zinc (II), and lead (II) metal ion removal in a water bath shake. The porous biomorphic-genetic composite of hydroxyapatite/carbon with eucalyptus template (PBGC-Fe/C-E) and the porous biomorphic-genetic composite of hydroxyapatite/carbon with bamboo template (PBGC-Fe/C-B) were prepared using eucalyptus and bamboo as plant templates, and through various processes including ammonia leaching, cyclical impregnation using calcium hydroxide and diammonium solutions, and aerobic firing inside muffle furnaces. Tests were conducted on the HAP/C composites to observe their adsorption effects on Cu (II), Zn (II), Pb (II), and Cd (II). The results show that the prepared composites were able to adsorb heavy metals in water effectively. The results indicated that the adsorbed amount of PBGC-Fe/C-E were found to be 16.4371, 4.6725,24.5528, 17.0194 mg/1 for Cu (II), Zn (II), Pb (II) and Cd (II) ions at initial concentration of 50mg/L (25°C), respectively. The adsorbed amount of PBGC-Fe/C-B were found to be 10.5876, 3.9142,21.2463, 13.4721 mg/1 for Cu (II), Zn (II), Pb (II) and Cd (II) ions at initial concentration of 50mg/L (25°C), respectively. The prepared adsorbent is expected to be a new material for the removal of heavy metals from contaminated water.

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Modification of industrial divinyl rubber by oxidative chlorophosphorylation and assess-ment of metal ion removal efficiency of obtained polymer sorbent

Polish Journal of Chemical Technology ◽

10.1515/pjct-2015-0038 ◽

2015 ◽

Vol 17 (2) ◽

pp. 112-118 ◽

Cited By ~ 4

Author(s):

Vagif M. Akhmedov ◽

Sulaiman Alfadul ◽

Abel M. Maharramov ◽

Abdulsaid A. Azizov ◽

Rasim M. Alosmanov ◽

...

Keyword(s):

Electron Microscopy ◽

Removal Efficiency ◽

Metal Ion ◽

Metal Removal ◽

Initial Concentration ◽

Metal Ion Removal ◽

Ion Removal ◽

Modified Polymers ◽

Prepared Material ◽

Scanning Electron

Abstract The main goal of this study was the preparation of materials containing phosphoric functionalities on the base of industrial polymer - divinyl rubber and the assessment of their removal efficiency of heavy metals from aqueous solutions. The new method concerns the oxidative chlo-rophosphorylation of divinyl rubber by PCl3 with the following modification of obtained inter-mediates to create -PO(OH)2, -OPO(OH)2 groups in the polymer chain. The obtained modified polymers get some new properties such as complex formation and capability for ion exchange. The nature and distribution of phosphoric functionalities in the polymer were studied by the methods of NMRand FTIR- spectroscopy, thermal analysis and scanning electron microscopy. The sorption properties of synthesized polymers towards some cations (Cu+2, Ni+2, Co+2 and Zn+2) from water solutions have been tested. It has been shown that the metal removal efficiency of prepared material depends on pH of medium, initial concentration and type of metal ions.

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Column Study on the Removal of Metals from Industrial Effluents using the Biomass Sargassum sp

International Journal of Applied Research in Mechanical Engineering ◽

10.47893/ijarme.2012.1053 ◽

2012 ◽

pp. 6-9

Author(s):

A. Saravanan ◽

Uvaraja Uvaraja ◽

Nishanth Nishanth ◽

Soundarajan Krishnan

Keyword(s):

Heavy Metals ◽

Metal Ion ◽

Human Life ◽

Industrial Effluents ◽

Chemical Precipitation ◽

Electrochemical Treatment ◽

Chemical Oxidation ◽

Metal Ion Removal ◽

Ion Removal ◽

Oxidation Reduction

Heavy metals are ubiquitous environmental contaminants in industrialized societies. The presence of heavy metals in the environment is of major concern because of their toxicity, bio-accumulating tendency, threat to human life and the environment. Traditional methods have been used to remove heavy metals from effluent include chemical precipitation, chemical oxidation/reduction, ion exchange, electrochemical treatment, evaporation and filtration. Many of these methods are ineffective; resulting in low levels of metal ion removal and can also be economically inefficient. Biomass of brown marine macro algae is a renewable biological resource, which is available in large quantities and can form a good base for the development of biosorbent material. The work considered the parameters of the effluents and the experimental column model for the metal adsorption. Among the experimental model Thomas model fitted the column biosorption data well.

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