Results 1 to 10 of about 215,802 (116)

Effect of pretreatment with pentanol for dyeing wool fibers at low temperature [PDF]

open access: yesActa Periodica Technologica, 2023
This paper describes the influence of pre-treatment with pentanol for the dyeing of wool fibers at low temperatures. Wool fiber is expensive to produce and process; accordingly, it must be economically viable and meet consumer demands. Acid dyes
Nikodijević Milena M.   +1 more
doaj   +1 more source

Application of a Mixed Order Model to Determine the Rate Adsorption of 1-Nitronaphthalene onto Activated Carbon

open access: yesApplied Environmental Research, 2019
This study investigated the adsorption kinetics of 1-nitronaphthalene solution (a polycyclic aromatic hydrocarbon, PAH) onto seven different masses of activated carbon.
Suntree Rincome
doaj   +7 more sources

Studies of adsorption kinetics and regeneration of aniline, phenol, 4-chlorophenol and 4-nitrophenol by activated carbon [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2013
The present paper reports kinetic studies of the adsorption of aniline (AN), phenol (P), 4-chlorophenol (CP) and 4-nitrophenol (NP) from aqueous solution onto granular activated carbon (GAC).
Suresh S., Srivastava V.C., Mishra I.M.
doaj   +1 more source

Adsorption kinetic modeling using pseudo-first order and pseudo-second order rate laws: A review

open access: yesCleaner Engineering and Technology, 2020
Adsorption for water and wastewater treatment has been the subject of many research in the scientific community, focusing mainly on either equilibrium or kinetic studies. Adsorption kinetics are commonly modeled using pseudo-first and pseudo-second order
Emmanuel D. Revellame   +4 more
doaj   +1 more source

Comparative Advanced Oxidation Decolorization of the Triphenylmethane Dye with Dimethyl Dioxirane and Hydrogen Peroxide [PDF]

open access: yesNature Environment and Pollution Technology, 2023
Methyl Violet (MV), a triphenylmethane dye, has been subjected to comparative studies with hydrogen peroxide and dimethyl dioxirane under optimum situations.
S. Vinotha and A. Leema Rose
doaj   +1 more source

Adsorption of Cu (II) and Ni (II) Ions from Solution onto Calcium Alginate Beads

open access: yesJournal of Applied Sciences and Environmental Management, 2020
The objective of this study was to investigate the biosorption of Cu (II) and Ni (II) ions from aqueous solution by calcium alginate beads. The effects of solution pH, contact time and initial metal ion concentration were evaluated.
D.O. Jalija, A . Uzairu
doaj   +1 more source

PRACTICAL ASPECTS OF THE ANALYSIS OF THE PROGRESSION CURVES OF FIRST AND PSEUDO-FIRST ORDER REACTIONS [PDF]

open access: yesQuímica Nova, 2020
The paper presents a simple method of determining iteratively the progression curve asymptote for first and pseudo-first order reactions. For selected student exercises, thus obtained results were compared (see Supplementary Material) with those found by
Joanna Nackiewicz   +2 more
doaj   +1 more source

The use of agro-industrial residues of coffee ( Coffea arabica) for the removal of mercury from water [PDF]

open access: yesJournal of Water and Land Development, 2023
Contamination of water bodies by heavy metals is a continuously growing environmental issue. High concentrations of mercury (Hg) in river waters are a recognized environmental problem, because it is one of the most toxic heavy metal ions as it causes ...
Candelaria N. Tejada-Tovar   +2 more
doaj   +1 more source

Effect of Reverse Micelles Size on the Electron Transfer Reaction within the Ion Pair of Co (III)/Fe (II) Complexes

open access: yesApplied Sciences, 2022
The electron transfer process between pentammineaquacobalt (III) and hexacyanoferrate (II), [Co(NH3)5H2O]3+/Fe(CN)6]4− ion pair was investigated in water/dioctyl sodium sulfosuccinate (AOT)/Isooctane reverse micelles. The study observed that the electron
Ram Krishna Hona   +2 more
doaj   +1 more source

Kinetic model for the sorption of copper ions onto sugar beet shreds [PDF]

open access: yesHemijska Industrija, 2014
Adsorption kinetics is of great significance to evaluate the performance of adsorption process. The kinetics of copper ions adsorption onto different sized sugar beet shreds has been considered.
Brdar Mirjana M.   +3 more
doaj   +1 more source

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