Biosorption of lead(II), cadmium(II), copper(II) and nickel(II) by anaerobic granular biomass

Hawari, Alaa H.; Mulligan, Catherine N.

doi:10.1016/j.biortech.2005.03.033

Cited by 232 publications

(96 citation statements)

References 25 publications

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“…Langmuir and Freundlich models are widely applied in equilibrium analysis to understand sorption mechanisms 9, 15-17, 21 . The Langmuir model considers sorption by monolayer type and supposes that all the active sites on the sorbent surface have the same affi nity for heavy metal ions 33 . The Freundlich isotherm is an empirical equation which assumes a heterogeneous biosorption system with different active sites The values of q max , b and R 2 are given in Table 4.…”

Section: Biosorption Isothermmentioning

confidence: 99%

Biosorption of lead(II), zinc(II) and nickel(II) from industrial wastewater by Stenotrophomonas maltophilia and Bacillus subtilis

Wierzba

2015

Polish Journal of Chemical Technology

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The biosorption of Pb(II), Zn(II) and Ni(II) from industrial wastewater using Stenotrophomonas maltophilia and Bacillus subtilis was investigated under various experimental conditions regarding pH, metal concentration and contact time. The optimum pH values for the biosorption of the three metals were in the range 5.0-6.0, while the optimal contact time for the two bacterial species was 30 min. Experimental data was analyzed using Langmuir and Freundlich isotherms; the former had a better fi t for the biosorption of Pb(II), Zn(II) and Ni(II). The maximum adsorption uptakes (q max ) of the three metals calculated from the Langmuir biosorption equation for S. maltophilia were 133.3, 47.8 and 54.3 for Pb(II), Zn(II) and Ni(II), respectively, and for B. subtilis were 166.7, 49.7 and 57.8 mg/g, respectively. B. subtilis biomass was more favorable for the biosorption of Pb (II) and Ni (II), while S. maltophilia was more useful for the biosorption of Zn (II).

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Section: Biosorption Isothermmentioning

confidence: 99%

Biosorption of lead(II), zinc(II) and nickel(II) from industrial wastewater by Stenotrophomonas maltophilia and Bacillus subtilis

Wierzba

2015

Polish Journal of Chemical Technology

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“…The protonized ligands and metal cations will compete for binding sites. As the pH increases, more functional groups with negative charges become exposed, which results in the biosorption capacity enhancement (Gai et al, 2008;Hawari & Mulligan et al, 2006a). Higher temperature always favors the adsorption process through the increase in surface activity and kinetic energy of the solute (Sag & Kutsal, 2000).…”

Section: Biosorption Behavior Of Aerobic Granular Sludgementioning

confidence: 99%

Interaction between Heavy Metals and Aerobic Granules

Wang¹,

Teng²,

Fan³

2010

Environmental Management

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“…Various technologies such as precipitation, adsorption [4], biosorption [5], ion exchange [6], reverse osmosis [7], electrodialysis [8], ion exchangeassisted membrane separation [9][10][11] and electrochemical methods [12,13] have been employed to remove these metals from various effluents. However electrochemical methods have been receiving greater attention in recent years due to the distinctive advantages of environmental compatibility, versatility and safety.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Electrodeposited Cadmium and Lead thin Films from a Diluted Chloride Solution

Sulaymon

Mohammed

Abbar

2014

Journal of Electrochemical Science and Technology

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Cd-Pb thin films were electrodeposited from a diluted chloride solution using stainless steel rotating disc electrode. The linear sweep voltammograms of the single metallic ions show that electrodeposition of these ions was mass transfer control due to the plateau observed for different rotations at concentration (50 and 200 ppm). The voltammograms of binary system elucidate that electrodeposition process always start at cathodic potential located between the potential of individual metals. Currents transients measurements, anodic linear sweep voltammetry (ALSV) and atomic force microscopy (AFM) were used to characterize the electrocryatalization process and morphology of thin films. ALSV profiles show a differentiation for the dissolution process of individual metals and binary system. Two peaks of dissolution Cd-Pb film were observed for the binary system with different metal ion concentration ratios. The model of Scharifker and Hills was used to analyze the current transients and it revealed that Cd-Pb electrocrystalization processes at low concentration is governed by threedimensional progressive nucleation controlled by diffusion, while at higher concentration starts as a progressive nucleation then switch to instantaneous nucleation process. AFM images reveal that Cd-Pb film electrodeposited at low concentration is more roughness than Cd-Pb film electrodeposited at high concentrated solution.

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Biosorption of lead(II), cadmium(II), copper(II) and nickel(II) by anaerobic granular biomass

Cited by 232 publications

References 25 publications

Biosorption of lead(II), zinc(II) and nickel(II) from industrial wastewater by Stenotrophomonas maltophilia and Bacillus subtilis

Biosorption of lead(II), zinc(II) and nickel(II) from industrial wastewater by Stenotrophomonas maltophilia and Bacillus subtilis

Interaction between Heavy Metals and Aerobic Granules

Preparation and Characterization of Electrodeposited Cadmium and Lead thin Films from a Diluted Chloride Solution

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