Biosorption of Cadmium and Lead from Aqueous Solutions by Chlorella vulgaris Biomass: Equilibrium and Kinetic Study

Edris, Gaber; Alhamed, Yahia A.; Al-Zahrani, Abdulrahim A.

doi:10.1007/s13369-013-0820-x

Cited by 68 publications

(24 citation statements)

References 29 publications

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“…Similar trends were observed for cadmium and lead ions removal with the use of Chlorella vulgaris as biosorbent by Edris et al [4]. They found that Cd 2+ and Pb 2+ are preferably sorbed by smaller biomass concentration.…”

Section: Sorption Capacity Of Chlorella Vulgaris and Scenedesmus Armatussupporting

confidence: 84%

“…More ligands, such as amino, carboxyl, phosphate and imidazole groups could be removed, and that would result in the attraction between these charges and metal ions. The adsorption is hence increased at high pH [4,16,24,29].…”

Section: The Ph Influencementioning

confidence: 99%

“…This situation is a result of industrial activities which are related to the population growth, urbanization and industrialization [1,2]. The toxic effect of heavy metals on the environment and living organisms is observed even at low concentrations, due to their accumulation in the food chain [3,4]. Thus, scientists focus on finding the proper method for such contamination removal.…”

Section: Introductionmentioning

confidence: 99%

“…They include precipitation, ion exchange, membrane separation, adsorption, electrochemical treatment, solvent extraction, evaporation and reverse osmosis. However, most of these processes are expensive and not environmentally friendly, since waste products and toxic sludge are produced, which have to be disposed [3][4][5][6][7][8]. Hence, the development of efficient and inexpensive methods for heavy metals removal may be crucial.…”

Section: Introductionmentioning

confidence: 99%

“…This is due to the rapid uptake of metal ions, low cost and high efficiency of the process, energy and time saving, fast growth rate of the biomass and the possibility of reuse. The heavy metal ions uptake by algal biomass is connected to the ion exchange process [1,4,9,16,17]. The used algal biomass could be used as a feedstock for e.g.…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Biomass (Chlorella vulgaris, Scenedesmus armatus) Concentrations on Zn 2+ , Pb 2+ and Cd 2+ Biosorption from Zinc Smelting Wastewater

Zabochnicka-Świątek

Rygała

2017

Eng. Prot. Environ.

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Non-modified and chemically modified algal biomass of Chlorella vulgaris and Scenedesmus armatus were chosen to examine their Zn 2+ , Pb 2+ and Cd 2+ sorption activity. The dry biomass was chemically modified with 1M HNO3 in order to determine the influence of acid--treatment on the heavy metal ions removal rate. The heavy metal uptake process was found to be rapid and very efficient. The sorption process of heavy metals is highly pH-dependent. It influences heavy metal forms in the solution, and functional groups located on the cell surface. The effectiveness of biosorption depends also on the biomass concentration and its modifications. The highest adsorption capacities of both, Chlorella vulgaris and Scenedesmus armatus towards zinc, lead and cadmium ions were found for the lowest sorbent concentrations. Batch experiments showed that the differences between uptake by non-modified and acid-modified biomass are relatively small. It can be due to the fact that non-modified algal biomass exhibits high sorption capacity.

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Section: Sorption Capacity Of Chlorella Vulgaris and Scenedesmus Armatussupporting

confidence: 84%

Section: The Ph Influencementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The Effect of Biomass (Chlorella vulgaris, Scenedesmus armatus) Concentrations on Zn 2+ , Pb 2+ and Cd 2+ Biosorption from Zinc Smelting Wastewater

Zabochnicka-Świątek

Rygała

2017

Eng. Prot. Environ.

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The potential of nonliving Sargassum hemiphyllum as a biosorbent for nickel(II) removal—isotherm, kinetics, and thermodynamics analysis

Fan

Xia

Long

2018

Env Prog and Sustain Energy

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The ability of non‐living Sargassum hemiphyllum to remove nickel(II) from aqueous solutions was investigated. The optimum adsorption condition was occurred at a pH range from 4 to 8, a biomass of 0.5 g L−1, and an initial nickel(II) concentration of 250 mg L−1 with a contact time of 20 min. The Langmuir, Freundlich, and Dubinin‐Radushkevich isotherm models were used to fit the adsorption isotherms. The fitting results were more in line with the Langmuir model (R2 = 0.9915), and the maximum adsorption capacity obtained by Langmuir model was 42.95 mg g−1 at 308 K, respectively. The biosorption kinetics were analyzed using the pseudo‐first‐order, pseudo‐second‐order and intraparticle diffusion, and it was determined that they followed pseudo‐second‐order kinetics (R2 = 0.9996) at 308 K. The enthalpy (ΔH°) and entropy (ΔS°) change of adsorption was 3.95 kJ mol−1 and 20.28 J mol−1 K−1, respectively, which indicated that the adsorption was spontaneous and endothermic. The biosorbents were also characterized by Fourier infrared spectroscopy (FT‐IR), Scanning electron microscopy and Energy disperse spectroscopy (SEM‐EDS), and X‐ray photoelectron spectroscopy (XPS). The characterization analysis demonstrated that the functional groups such as hydroxyl, carboxyl, amino, and methyl on the algal surface involved in the adsorption for nickel(II). Our results suggested that the nonliving S. hemiphyllum could be used as an effective biosorbent for the removal of nickel(II) from wastewater. © 2018 American Institute of Chemical Engineers Environ Prog, 38: S250–S259, 2019

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Microbial Tolerance Strategies Against Lead Toxicity

Gupta,

Kaur,

Kaur

et al. 2024

Environmental Contamination Remediation and Management

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Biosorption of Cadmium and Lead from Aqueous Solutions by Chlorella vulgaris Biomass: Equilibrium and Kinetic Study

Cited by 68 publications

References 29 publications

The Effect of Biomass (Chlorella vulgaris, Scenedesmus armatus) Concentrations on Zn 2+ , Pb 2+ and Cd 2+ Biosorption from Zinc Smelting Wastewater

The Effect of Biomass (Chlorella vulgaris, Scenedesmus armatus) Concentrations on Zn 2+ , Pb 2+ and Cd 2+ Biosorption from Zinc Smelting Wastewater

The potential of nonliving Sargassum hemiphyllum as a biosorbent for nickel(II) removal—isotherm, kinetics, and thermodynamics analysis

Microbial Tolerance Strategies Against Lead Toxicity

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