Results 21 to 30 of about 1,970,553 (211)

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

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

Sorption of Pu(4) from nitric acid by bifunctional anion-exchange resins [PDF]

open access: yes, 1999
Anion exchange is attractive for separating plutonium because the Pu(IV) nitrate complex is very strongly sorbed and few other metal ions form competing anionic nitrate complexes. The major disadvantage of this process has been the unusually slow rate at
Marsh, S. F.   +7 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

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

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

open access: yes, 1999
We are developing multi-functional anion-exchange resins that facilitate anion uptake by carefully controlling the structure of the anion receptor site. We are attempting to determine if the precepts of ''bite size,'' ''preorganization,'' and ''bidentate'
Barr, Mary E.   +3 more
core   +1 more source

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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