Results 21 to 30 of about 2,201,882 (299)

Growth Enhancement of Probiotic Pediococcus acidilactici by Extractive Fermentation of Lactic Acid Exploiting Anion-Exchange Resin

open access: yesFrontiers in Microbiology, 2018
Fermentation employing lactic acid bacteria (LAB) often suffers end-product inhibition which reduces the cell growth rate and the production of metabolite.
Majdiah Othman   +6 more
doaj   +1 more source

New strategies for treatment and reuse of spent sulfidic caustic stream from petroleum industry

open access: yesQuímica Nova, 2012
This work examines traditional and new routes for removal of H2S and other sulfur compounds from spent sufidic caustic (SSC). SH- (hydrogenosulfide) and S2- (sulfide) ions were quantitatively oxidized at 25 ºC using H2O2, NaOCl or a spent sulfochromic ...
Jéssica Frontino Paulino   +1 more
doaj   +1 more source

Determination of bioavailable phosphorus from water samples with low suspended sediment using an anion exchange resin method

open access: yesMethodsX, 2021
Measurement of phosphorus in surface waters for eutrophication studies is common. Phosphorus is commonly adsorbed to suspended sediment, but can desorb under certain conditions.
Michael W. Suplee
doaj   +1 more source

New Anion-Exchange Resins for Improved Separations of Nuclear Material [PDF]

open access: yes, 2000
We are developing bifunctional anion-exchange resins that facilitate anion uptake by carefully controlling the structure of the anion receptor site. Our new ion-exchange resins interface the rapidly developing field of ion-specific chelating ligands with
Barr, Mary E.   +2 more
core   +1 more source

Thermodynamic Characteristics of the Ion-Exchange Process Involving REMs of the Light Group

open access: yesSeparations
Rare earth metals (REMs) are vital for high-tech industries, but their extraction from secondary sources is challenging due to environmental and technical constraints.
Olga V. Cheremisina   +4 more
doaj   +1 more source

Removal of 2-naphthalenesulfonic acid using novel dual functional weakly basic anion exchange resins from aqueous solution

open access: yesAdsorption Science & Technology, 2019
Two novel weakly basic anion exchange resins BNH and BN2 bearing two different functional groups was fabricated via the two-step amination of chloromethylated polystyrene-divinylbenzene beads with dibutylamine and dimethylamine. The adsorption properties
Yue Sun, Weisheng Zheng, Deqiang Yin
doaj   +1 more source

Bioregeneration of sulfate-laden anion exchange resin

open access: yesWater Research, 2022
Ion exchange technology removes ionic compounds from waters effectively but treatment of the spent regenerant is expensive. The bioregeneration of sulfate-laden strong base anion exchange resin was successfully tested using both pure and mixed sulfate-reducing bacterial cultures.
Hanna Virpiranta   +3 more
openaire   +3 more sources

pH Neutralization while Succinic Acid Adsorption onto Anion-Exchange Resins

open access: yes, 2010
Succinic acid is a useful chemical and its purification from fermentation broth by ion-exchange resins has widely drawn attention. In this study, pH neutralization in the process of adsorption of succinic acid from model solutions and fermentation broth ...
Li, Qiang   +9 more
core   +1 more source

Selectivity of Anion Exchange Resin Modified with Anionic Polyelectrolyte

open access: yesAnalytical Sciences, 1997
In order to change the ion-exchange selectivity of anion exchange resin, especially to make the ion-exchange of divalent anions more difficult, the surface of gel-type anion exchange resin was modified by the adsorption of an anionic polyelectrolyte: polycondensation product of sodium naphthalene sulfonate and formaldehyde.
MATSUSAKI, Koji   +3 more
openaire   +2 more sources

NON DESTRUCTIVE APPLICATION OF RADIOACTIVE TRACER TECHNIQUE FOR CHARACTERIZATION OF INDUSTRIAL GRADE ANION EXCHANGE RESINS INDION GS-300 AND INDION-860

open access: yesNuclear Engineering and Technology, 2014
The paper deals with the application of radio isotopic non-destructive technique in the characterization of two industrial grade anion exchange resins Indion GS-300 and Indion-860.
P.U. SINGARE
doaj   +1 more source

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