Biomass of mucor heimalis for the biosorption of cadmium from aqueous solutions: equilibrium and kinetic studies
P. C. Srivastava,Syed Hadi Hasan +1 more
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In this paper, the use of fungal biomass of Mucor heimalis for the removal of cadmium from aqueous solution in a batch system was investigated.Abstract:
The present study deals with the utilization of a cellulosic material, i.e. fungal biomass of Mucor heimalis, for the removal of cadmium from aqueous solution in a batch system. Effects of various parameters such as pH, biomass dosage, contact time, and initial metal concentrations were investigated. The sorption of cadmium followed pseudo-second-order rate kinetics (R2=0.998). Intraparticle diffusion was found not to be the sole rate-controlling step. Thermodynamic studies revealed that the sorption of cadmium was feasible, spontaneous, and exothermic. Various isotherm models viz. Langmuir, Freundlich, Redlich–Peterson, Dubinin-Radushkevich, and Temkin isotherms were applied. The Langmuir and Redlich–Peterson models were found to be in good agreement with experimental data with high R2, low RMSE, and low χ2 values. The Redlich–Peterson isotherm constant g was found to be unity, which implies a good fit to the Langmuir model. The maximum sorption capacity calculated from the Langmuir isotherm was 85.47 mg/g at optimum conditions of pH 6.0, contact time of 35 min, biomass dosage of 1g/L, and temperature of 25 oC.read more
Citations
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Steel-Making dust as a potential adsorbent for the removal of lead (II) from an aqueous solution
TL;DR: In this article, a steel-making dust obtained from a local steel factory was used for the adsorption of lead Pb(II) from an aqueous solution.
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Analysis of temperature-dependent biosorption of Cu2+ ions on sunflower hulls: Kinetics, equilibrium and mechanism of the process
TL;DR: In this article, a series of kinetic and equilibrium experiments has been conducted at various temperatures (20-55°C) and the results of the kinetics have been presented in the form of various models based on the order of reaction or diffusion.
Book ChapterDOI
Fungal Phytoremediation of Heavy Metal-Contaminated Resources: Current Scenario and Future Prospects
Amit Kumar,Ashish K. Chaturvedi,K. L. Yadav,Kallare P. Arunkumar,Sandeep K. Malyan,P. Raja,Ram Kumar,Shakeel A. Khan,Krishna Kumar Yadav,Kusam Lata Rana,Divjot Kour,Neelam Yadav,Ajar Nath Yadav +12 more
TL;DR: This chapter mainly emphasizes the detailed mechanism of fungal phytoremediation and some potential species are provided for abatement of heavy metals from contaminated water and soil.
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Base Catalytic Approach: A Promising Technique for the Activation of Biochar for Equilibrium Sorption Studies of Copper, Cu(II) Ions in Single Solute System.
TL;DR: The results elucidated that the base pretreatment was efficient enough to yield porous carbon with an enlarged surface area, which can successfully eliminate Cu(II) cations from waste water.
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Biosorption of Ni(II) ions from aqueous solution using modified Aloe barbadensis Miller leaf powder
TL;DR: In this paper, the authors investigated the biosorption potential of Na2CO3-modified Aloe barbadensis Miller (Aloe vera) leaf (MABL) powder for removal of Ni(II) ions from a synthetic aqueous solution.
References
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TL;DR: An overview of second-order kinetic expressions is described in this paper based on the solid adsorption capacity, which shows that a pseudo-second-order rate expression has been widely applied to the Adsorption of pollutants from aqueous solutions onto adsorbents.
Journal ArticleDOI
Biosorbents for heavy metals removal and their future
Jianlong Wang,Can Chen +1 more
TL;DR: The biosorbents widely used for heavy metal removal were reviewed, mainly focusing on their cellular structure, biosorption performance, their pretreatment, modification, regeneration/reuse, modeling of biosor adaptation (isotherm and kinetic models), the development of novel biosorbent, their evaluation, potential application and future.
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