Results 11 to 20 of about 99,222 (315)

Kinetic Modeling of Isothermal or Non-isothermal Adsorption in a Pellet: Application to Adsorption Heat Pumps [PDF]

open access: yes, 2010
Understanding the interaction between a fluid and a solid phase is of fundamental importance to the design of an adsorption process. Because the heat effects associated with adsorption are comparatively large, the assumption of isothermal behavior is a ...
Nikov, Iordan   +9 more
core   +1 more source

Integrated process for production of surfactin Part 2. Equilibrium and kinetic study of surfactin adsorption onto activated carbon [PDF]

open access: yes, 2008
Previous work has presented kinetics of pure surfactin adsorption onto activated carbon. Being an efficient biosurfactant, the lipopeptide surfactin has been produced in a bioprocess supported by the strain Bacillus subtilis ATCC 21332.
Nikov, Iordan   +4 more
core   +1 more source

Integrated process for production of surfactin Part 1: Adsorption rate of pure surfactin onto activated carbon [PDF]

open access: yes, 2007
The work reported in this paper is aimed at studying the adsorption of surfactin from aqueous solution onto activated carbon. Among the factors,agitation rate, activated carbon particle-size, pH, temperature, initial adsorbate concentration, adsorbent ...
Nikov, Iordan   +4 more
core   +1 more source

Studies of adsorption thermodynamics and kinetics of Cr(III) and Ni(II) removal by polyacrylamide [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
Polyacrylamide (PAA), as an adsorbent was investigated for the removal of Ni(II) and Cr(III) metal ions from their synthesized aqueous solutions. The different variables affecting the adsorption capacity of the adsorbent such as contact time, pH of ...
Mousavi Zavvar Hassan   +2 more
doaj   +1 more source

Competitive adsorption of p-hydroxybenzoic acid and phenol on activated carbon : experimental study and modelling. [PDF]

open access: yes, 2013
The competitive adsorption of phenol and p-hydroxybenzoic acid (4HBA) has been investigated on activated carbon (AC) for a wide range of concentrations under unbuffered conditions. The results show a preferential adsorption of 4HBA which can be explained
Creanga-Manole, Carmen   +4 more
core   +1 more source

Adsorptive Removal of Pentavalent Arsenic from Aqueous Solutions by Granular Ferric Oxide [PDF]

open access: yesChemical and Biochemical Engineering Quarterly, 2022
Arsenic contamination of water resources, which is characterized by strong carcinogenic and toxic impacts, is a global problem. Therefore, the present study is focused on the isotherm and kinetic studies of pentavalent arsenic As(V) adsorption with ...
R. Zakhar   +3 more
doaj   +1 more source

Removal of mercury (II) from aqueous solution by using rice residues [PDF]

open access: yes, 2013
Sorption potential of rice residues for Hg(II) removal from aqueous solution was investigated. Rice husk (RH) and rice straw (RS) were selected and treated with sodium hydroxide (NaOH).
Saman, N.   +3 more
core   +1 more source

Characteristics of phosphorus adsorption by sediment mineral matrices with different particle sizes

open access: yesWater Science and Engineering, 2013
The particle size of sediment is one of the main factors that influence the phosphorus physical adsorption on sediment. In order to eliminate the effect of other components of sediment on the phosphorus physical adsorption the sediment mineral matrices ...
Yang Xiao   +5 more
doaj   +1 more source

Surfactant adsorption kinetics in microfluidics [PDF]

open access: yesProceedings of the National Academy of Sciences, 2016
Significance Surfactant adsorption to interfaces is a dynamic process of relevance for foaming, emulsification, and detergency. Although the process has been described for centuries now, the rational measurement of adsorption and desorption constants, as well as the modeling of the binding mechanism, is still subject to many assumptions.
Riechers, Birte   +5 more
openaire   +7 more sources

Adsorption of Lead from Aqueous Solution onto Untreated Orange Barks: Equilibrium, Kinetics and Thermodynamics

open access: yesE3S Web of Conferences, 2014
Adsorption can be used as a cost effective and efficient technique for the removal of toxic heavy metals from wastewater. Waste materials with no further treatment such as orange barks from commercial oranges may act as adsorbent for the removal of lead.
Azouaou N., Sadaoui Z., Mokaddem H.
doaj   +1 more source

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