Journal ArticleDOI
Pseudo-second order model for sorption processes
Yuh-Shan Ho,Gordon McKay +1 more
TLDR
In this paper, a literature review of the use of sorbents and biosorbents to treat polluted aqueous effluents containing dyes:organics or metal ions has been conducted.About:
This article is published in Process Biochemistry.The article was published on 1999-07-01. It has received 13746 citations till now. The article focuses on the topics: Sorption.read more
Citations
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Equilibrium studies for trimethoprim adsorption on montmorillonite KSF
TL;DR: The results indicate that a pH value of 5.04 is optimum value for the adsorption of TMP on montmorillonite KSF, and it was found that linear form of Langmuir isotherm seems to produce a better model thanlinear form of Freundlich equation.
Journal ArticleDOI
Activated carbons from sewage sludge and discarded tyres: production and optimization.
TL;DR: This is a study about making use of two residual materials such as sludges from a sewage treatment plant and discarded tyres to generate activated carbons and later optimize the production process to avoid leach Zn while using.
Journal ArticleDOI
Selective recognition of 2,4-dichlorophenol from aqueous solution by uniformly sized molecularly imprinted microspheres with β-cyclodextrin/attapulgite composites as support
TL;DR: In this article, uniformly sized molecularly imprinted microspheres (MIP) using β-cyclodextrin/attapulgite composites as support were prepared for recognitive adsorption of 2,4-dichlorophenol (2,4DCP) from aqueous solution.
Journal ArticleDOI
Kinetic and Equilibrium Studies of Cr(VI) Biosorption by Dead Bacillus licheniformis Biomass
TL;DR: In this article, the removal of Cr(VI) from aqueous solution was investigated in a batch system by sorption on the dead cells of Bacillus licheniformis isolated from metal-polluted soils.
Journal ArticleDOI
Removal of tartrazine by activated carbon biosorbents of Lantana camara: Kinetics, equilibrium modeling and spectroscopic analysis
Ravindra Kumar Gautam,Pavan Kumar Gautam,Sushmita Banerjee,Vandani Rawat,Shivani Soni,Sanjay K. Sharma,Mahesh Chandra Chattopadhyaya +6 more
Abstract: Preparation of the activated carbon biosorbents from Lantana camara weed by sulphuric acid activation was carried out. Laboratory prepared activated carbon was used as adsorbents for the removal of an acidic dye tartrazine from aqueous solutions. Liquid-phase adsorption experiments were conducted and the maximum adsorption capacity of activated carbon was determined. The effects of various process parameters, i.e., temperature, pH, initial tartrazine concentration, contact time on the adsorption capacity of activated carbon were investigated. The kinetic models for tartrazine adsorption onto activated carbon were studied. Freundlich isotherm (KF, 98.401 L g−1) showed better fit than Langmuir isotherm (Q0, 90.900 mg g−1) for the activated carbon. The rates of adsorption were found to confirm the pseudo-second-order kinetics with good correlation. The separation factor (RL) revealed the favorable nature of the isotherm of the tartrazine-activated carbon system. The values of activation parameters such as free energy (ΔG°, −10.346 to −10.983 kJ mol−1), enthalpy (ΔH°, 22.976 kJ mol−1) and entropy (ΔS°, 154. 555 J mol−1 k−1) were determined, respectively, indicating that the adsorption was spontaneous, endothermic and favorable process in nature.
References
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The exchange adsorption of ions from aqueous solutions by organic zeolites; kinetics.
Journal ArticleDOI
Application of Elovich equation to the kinetics of phosphate release and sorption in soils.
S. H. Chien,W. R. Clayton +1 more
Book
Kinetics of Soil Chemical Processes
TL;DR: The application of chemical kinetics to soil systems is discussed in this paper, where the authors present a model of Inorganic and Organic Reactions in Soils, as well as the mechanisms of Rapid Reactions on Soil Constituents using Relaxation Methods.