Journal ArticleDOI
Removal of Cr(VI) and Cu(II) ions from aqueous solution by rice husk ash—column studies
Shreyashi Sarkar,Sudip Kumar Das +1 more
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In this paper, the technical feasibility of rice husk ash for adsorptive removal of Cr(VI) and Cu(II) is examined in packed bed from aqueous solutions.Abstract:
In this present study, the technical feasibility of rice husk ash for adsorptive removal of Cr(VI) and Cu(II) is examined in packed bed from aqueous solutions. The effects of different operating parameters such as height of the packed bed column (5–15 cm), flow rate of aqueous metal ion solution (10–30 ml min−1), and initial metal ion concentration (10–30 mg L−1) were studied. Capacity of the bed to absorb metal ions was found to increase with an increase in bed height, decrease in flow rate, and metal ion concentration. Adams–Bohart, Yoon–Nelson, and Thomas models were applied to the experimental data for the prediction of breakthrough point and also to determine the model parameters to characterize the column. The Yoon–Nelson model and Thomas model were applicable for Cr(VI) removal, and for Cu(II), Thomas model was suited.read more
Citations
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Journal ArticleDOI
Removal of methylene blue (aq) using untreated and acid-treated eucalyptus leaves and GA-ANN modelling
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Sustainable bioremadiation of Cd(II) in fixed bed column using green adsorbents: application of kinetic models and GA-ANN technique.
TL;DR: Nag et al. as discussed by the authors used hybrid artificial intelligence GA-ANN for simulation and optimization of Cd(II) removal efficiency prediction as a function of influent variables, which performed appreciably well in terms of cross-correlation coefficient (R) value (between 0.997 to 0.999) and minimization of errors.
Journal ArticleDOI
Phenol removal from wastewater using low-cost natural bioadsorbent neem (Azadirachta indica) leaves: Adsorption study and MLR modeling
TL;DR: In this article, the potential of neem leaves for phenol adsorption was evaluated using pseudo-second-order (r2 = 0.99999) and multiple linear progressing (MLR) models.
Journal ArticleDOI
Removal of arsenic from aqueous solution by novel iron and iron-zirconium modified activated carbon derived from chemical carbonization of Tectona grandis sawdust: Isotherm, kinetic, thermodynamic and breakthrough curve modelling.
TL;DR: In this paper, the authors developed activated carbon modified with iron and zirconium (Fe@AC) from the Tectona grandis sawdust (TGS) waste biomass and its potential applicability for the removal of As (III) from contaminated water by batch and column mode.
Journal ArticleDOI
Adsorptive removal of phenol from wastewater using guava tree bark
TL;DR: The research determined that the guava tree bark is suitable for the removal of phenol from wastewater and the adsorption method supported endothermic, random, and spontaneous.
References
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Book
Standard methods for the examination of water and wastewater
TL;DR: The most widely read reference in the water industry, Water Industry Reference as discussed by the authors, is a comprehensive reference tool for water analysis methods that covers all aspects of USEPA-approved water analysis.
Journal ArticleDOI
Some aspects of the behavior of charcoal with respect to chlorine.1
G. S. Bohart,E. Q. Adams +1 more
Journal ArticleDOI
Application of gas adsorption kinetics. I. A theoretical model for respirator cartridge service life.
Young Hee Yoon,James H. Nelson +1 more
TL;DR: A new theoretical model addressing the adsorption and breakthrough of contaminant vapors or gases with respect to solid sorbents is developed, less complicated and easier to apply to practical industrial hygiene problems than theories developed previously.
Book
Toxicology: The basic science of poisons
Amdur,Lewis Casarett,John Doull +2 more
TL;DR: This is a weighty and heavily documented textbook which should prove of great value to experimental toxicologists but is probably not appropriate for medical readers who would be better served by consulting medical textbooks of pharmacology and biochemistry.
Journal ArticleDOI
Batch Cr(VI) removal by polyacrylamide-grafted sawdust : Kinetics and thermodynamics
C. Raji,T.S. Anirudhan +1 more
TL;DR: In this paper, the effect of diverse ions has been studied and it is found that there is very little effect on the adsorption of Cr(VI) on polymer-grafted sawdust.
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