Results 11 to 20 of about 42,990 (252)

Freundlich Isotherm: An Adsorption Model Complete Framework

open access: yesApplied Sciences, 2021
The absolute majority of modern studies dealing with the interpretation of experimental data on the basis of the Freundlich isotherm ignore the fact that the data obtained for regions of low and moderate adsorbate concentration/pressure can be ...
Michael Vigdorowitsch   +3 more
doaj   +2 more sources

Rice husk and activated carbon-silica as potential bioadsorbents for wastewater purification [PDF]

open access: yesCaspian Journal of Environmental Sciences, 2021
Heavy metals are generally found in industrial wastewaters, affecting human health and living organisms. This study was therefore aimed to use bioadsorbents rice husk and activated carbon-silica to efficiently remove the heavy metals including lead (Pb ...
Mousa Mohammadpour   +3 more
doaj   +1 more source

The study of direct dye sorption on flax fibers during dyeing [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2021
This article presents the study of direct dye sorption onto the flax fiber during the dyeing process in the presence of an inorganic electrolyte. The previously prepared linen fabric was subjected to dyeing by a standard process, varying in concentration
Vučković Nemanja   +2 more
doaj   +1 more source

Synthesis, characterization, and performance of chitosan/nylon 6/polyurethane blend for the removal of chromium (VI) and lead (II) ions from aqueous solutions for enhanced kinetic adsorption studies

open access: yesJournal of Water Reuse and Desalination, 2023
Adsorption is vital for the elimination of Cr6+ and Pb2+ ions in the contaminated solution medium. A ternary blend made up of chitosan, nylon 6 and polyurethane foam (CS/Ny 6/PUF) blend in the ratio of 2:1:1 has been investigated.
S. Jayakumar   +5 more
doaj   +1 more source

Size-Controlled Capacity and Isocapacity Concentration in Freundlich Adsorption

open access: yesACS Omega, 2020
ACS AuthorChoiceThe Freundlich isotherm is a classic model widely used to analyze the equilibrium of solution-phase adsorption. Further analysis of the adsorption mechanism has, however, been hindered by the empirical nature of the Freundlich isotherm ...
Chongzheng Na
doaj   +2 more sources

Thermodynamics of adsorption of malachite green hydrochloride on treated and untreated corncob charcoal [PDF]

open access: yesJournal of the Serbian Chemical Society, 2019
The need to explore an environmentally friendly and cheaper adsorbent for removal of dye from polluted water has imposed a requirement for thorough thermodynamic studies of dye removal from synthetically polluted water.
Fodeke Adedayo A.   +1 more
doaj   +1 more source

Removal of Copper (II) Ions from Polluted Water Using Modified Wheat Bran

open access: yesEnvironmental and Climate Technologies, 2021
The discharge of wastewater containing heavy metals into waterbodies is a major environmental issue that can influence the quality of the water supply; therefore, it is important to remove the pollutants dangerous to living organisms.
Lomoko Gideon Masedi Nii Ayi   +2 more
doaj   +1 more source

Removal Studies of S2- Based on SBA-15-Pb(II) Composite [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
SBA (Santa Barbara Amorphous)-15 nano mesoporous molecular sieve was successfully synthesized by hydrothermal method and after its adsorption of Pb2+ the prepared material was used to adsorb S2- from aqueous solution.
Li Xiao-Dong, Zhai Qing-Zhou
doaj   +1 more source

Adsorption Optimization of Reactive Red 120 Dye from Aqueous Media using Chitosan-Coated Magnetically Nanoparticles [PDF]

open access: yesمحیط زیست و مهندسی آب, 2019
In this study, chitosan-coated magnetically nanoparticles were used to remove the Reactive Red 120 dye from aqueous solution. Chitosan is one of the most famous biological polymers that can be used as adsorbent in the removal of color pollutants ...
Ali Davoudi Rad   +2 more
doaj   +1 more source

Adsorption of ammonium, nitrite, and nitrate onto rice husk biochar for nitrogen removal

open access: yesHo Chi Minh City Open University Journal of Science - Engineering and Technology, 2021
This study aims to investigate the adsorption capacity of ammonium NH4+, nitrite NO2- and nitrate NO3- onto rice husk biochar (RHB) obtained from 550 °C pyrolysis temperature in the context of using low-cost absorbent for recirculating aquaculture system
Vo Thi Minh Thao   +8 more
doaj   +1 more source

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