Results 31 to 40 of about 204,985 (297)

Predictor Design of a Novel Grey Model PGM21 Using Pseudo Second-Order Information

open access: yesJSME International Journal Series C, 2006
A novel grey model, called pseudo-GM(2,1) or PGM21 for simplicity, is developed to improve the prediction accuracy for a non-monotone sequence by modifying the GM(1,1) model with a remedial term. Since the remedial term consists of two development coefficients, it can be treated as a kind of second-order information, called the pseudo second-order ...
Keh-Tsong LI, Yon-Ping CHEN
openaire   +2 more sources

Valorization of keratin biofibers for removing heavy metals from aqueous solutions [PDF]

open access: yes, 2018
Four common waste keratin biofibers (human hair, dog hair, chicken feathers, and degreased wool) have been used as biosorbents for the removal of heavy metal ions from aqueous solutions. Different parameters of the biosorption processes were optimized in
Carrillo Navarrete, Fernando   +3 more
core   +2 more sources

Removal of basic yellow cationic dye by an aqueous dispersion of Moroccan stevensite [PDF]

open access: yes, 2013
The aim of this study was to investigate the adsorption of basic yellow, a cationic dye, from aqueous solution by natural stevensite, with 104m2/g of specific surface area. The kinetics and the effects of several experimental parameters such as the pH of
Ajbary, Mohamed   +3 more
core   +1 more source

Adsorption Kinetics of Reactive Dyes on Ash from Town Heating Plant

open access: yesArchives of Environmental Protection, 2014
In order to investigate the mechanism of adsorption of reactive dyes from the textile industry on ash from heating plant produced by brown coal combustion, some characteristic sorption constants are determined using Langergren adsorption equations for ...
Djordjevic Dragan   +2 more
doaj   +1 more source

Dyes adsorption from aqueous solutions by Chitosan [PDF]

open access: yes, 2014
In this study the ability of chitosan to remove acid, basic, reactive and direct dyestuffs by adsorption was studied. The effect of several factors influencing dye adsorption such as dye concentration, grain size, pH and temperature were investigated ...
Francolini, Iolanda   +2 more
core   +1 more source

Study of kinetic and adsorption isotherm of ibuprofen on mcm-41 synthesized with rice husk [PDF]

open access: yesPharmaciana
Rice husk is one of the abundant wastes, especially in agricultural countries. Rice husk waste has a silica content of 95.80%, where the silica content can be utilized to make an adsorbent. One of the adsorbents that can be made is Mobil Composition of
Olyvia Azzahra Putri Hartono   +4 more
doaj   +1 more source

Biosorptive removal of cobalt (II) ion from wastewater using pomegranate peel activated carbon as biosorbent [PDF]

open access: yesJournal of the Serbian Chemical Society
Cobalt is used to link the components during integrated circuits (ICs) fabrication. Cobalt ion is common in chemical mechanical planarization (CMP) spent slurry.
Sushma   +2 more
doaj   +1 more source

Kinetic Study of Curcumin on Modal Fabric [PDF]

open access: yesTekstilec, 2018
A kinetic study of curcumin on modal fabric was carried out using an initial dye concentration of 1 g/L at three different temperatures, 70 °C, 85 °C and 100 °C, at pH 7 and an material to liquor ratio of 1:20.
Abu Naser Md. Ahsanul Haque   +4 more
doaj   +1 more source

Kinetics and Mechanisms of Phosphorus Adsorption in Soils from Diverse Ecological Zones in the Source Area of a Drinking-Water Reservoir. [PDF]

open access: yes, 2015
On-site soils are increasingly used in the treatment and restoration of ecosystems to harmonize with the local landscape and minimize costs. Eight natural soils from diverse ecological zones in the source area of a drinking-water reservoir in central ...
Du, Chao   +4 more
core   +2 more sources

Isotherm and Kinetics of Fe(II) Adsorption onto Chitosan in a Batch Process [PDF]

open access: yesIranica Journal of Energy and Environment, 2011
In this study removal of Fe(II) by chitosan adsorbent was experimentally investigated in a batch system. The adsorbent dose and pH of the metal solution was fixed at 0.15 g and 4, respectively.
Hamideh Radnia   +2 more
doaj  

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