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

