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Journal articles on the topic 'Competing sorption'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Fleischfresser, B. E., and G. C. Smith. "Sorption of Carboxylic Acids by Wool: Effect of Solvents." Textile Research Journal 58, no. 4 (1988): 221–26. http://dx.doi.org/10.1177/004051758805800406.

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The sorption of low molecular weight carboxylic acids by wool from various solvents has been investigated. More extensive sorption was observed from neutral than from either basic or acidic solvents. These results may be rationalized in terms of acid-base interactions between solvent, wool, and carboxylic acids. Basic solvents inhibit sorption by competing with the wool for the acids, whereas acidic solvents inhibit sorption by competing with the carboxylic acids for the wool. Water, an amphoteric solvent, gives limited sorption of acids compared with that found from neutral solvents.

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2

Ansone-Bertina, Linda, and Maris Klavins. "Sorption of V and VI group metalloids (As, Sb, Te) on modified peat sorbents." Open Chemistry 14, no. 1 (2016): 46–59. http://dx.doi.org/10.1515/chem-2016-0003.

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AbstractThe present work investigates arsenic, antimony and tellurium sorption using iron modified peat. The results were obtained using batch tests and the sorption was studied as a function of initial metalloid concentration, pH and sorption time, as well as the presence of competing substances. The obtained results indicate that modification of peat with Fe compounds significantly enhances the sorption capacity of the sorbents used for sorption of arsenic, antimony and tellurium. The optimal pH interval for the sorption of Sb(III) is 6.5–9 and for As(V) and Sb(V) – 3–6, while As(III) and te

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3

Park, HyunJu, Duc Canh Nguyen, and Choo-Ki Na. "Phosphate removal from aqueous solutions using (vinylbenzyl)trimethylammonium chloride grafted onto polyester fibers." Water Science and Technology 71, no. 12 (2015): 1875–83. http://dx.doi.org/10.2166/wst.2015.173.

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In this study, we investigated the removal of phosphate from aqueous solutions using (vinylbenzyl)-trimethylammonium chloride (VBTAC) grafted onto poly(ethylene terephthalate) (PET) fibers (PET-g-VBTAC). Batch-mode experiments were conducted using various contact times, initial phosphate concentrations, temperatures, pH values, and competing anions, to understand phosphate sorption onto PET-g-VBTAC. The phosphate sorption capacity of PET-g-VBTAC increased with increasing solution pH and was highest near pH 7. The equilibrium data fitted the Langmuir isotherm model well. The maximum sorption ca

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4

Belhanafi, Hamida, Abdellah Bakhti, and Noureddine Benderdouche. "Study of interactions between rhodamine B and a beidellite-rich clay fraction." Clay Minerals 55, no. 2 (2020): 194–202. http://dx.doi.org/10.1180/clm.2020.25.

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AbstractThe interaction between a basic dye, rhodamine B, and a separated fine fraction from natural clay was studied. Chemical analysis, X-ray diffraction and Fourier-transform infrared spectroscopy confirmed the predominance of beidellite in the fine clay fraction. The interaction of rhodamine B with the fine clay fraction showed that sorption was fast and followed a pseudo-second-order kinetic model. The comparison between sorbed rhodamine B amounts as a function of the various experimental parameters such as pH, sorbent mass, dye concentration and the presence of competing ions suggests th

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5

Semenkova, Anna S., Mariia V. Evsiunina, Parveen K. Verma, et al. "Cs+ sorption onto Kutch clays: Influence of competing ions." Applied Clay Science 166 (December 2018): 88–93. http://dx.doi.org/10.1016/j.clay.2018.09.010.

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6

Palamarchuk, M. S., E. A. Shelestyuk, E. A. Tokar’, and A. M. Egorin. "Sorption of Complex Co(II)-EDTA by Anion Exchange Resin AB-17-8 from Model Deactivating Solutions Containing Fe(III)-EDTA." Ecology and Industry of Russia 24, no. 6 (2020): 20–23. http://dx.doi.org/10.18412/1816-0395-2020-6-20-23.

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The results of studies of the sorption of EDTA complexes with ions Co(II) and Fe(III) on anion exchange resin AB-17-8 used in mixed filters of special water treatment apparatus of NPP are presented. The character of the sorption process of complexes Co(II)-EDTA and Fe(III)-EDTA in acidic media depending on the pH and salt background of solutions simulating deactivating solutions formed after the dissolution of iron oxide compounds containing cobalt radionuclides was studied. It has been shown that upon deactivation of spent ion-exchanged resins with acid solutions of EDTA salts, the secondary

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7

Marouane, Bouchra, Ning Chen, Martin Obst, and Stefan Peiffer. "Competing Sorption of Se(IV) and Se(VI) on Schwertmannite." Minerals 11, no. 7 (2021): 764. http://dx.doi.org/10.3390/min11070764.

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Schwertmannite (SHM) is a naturally occurring mineral that has been shown to effectively scavenge oxyanions from contaminated water. In this study, Fourier-transform infrared spectroscopy and X-ray absorption spectroscopy techniques in combination with wet-chemical techniques were used to study the competitive sorption of Se(IV) and Se(VI) at pH 3. The experiments were conducted with three types of schwertmannite obtained from oxidative synthesis, biogenic synthesis and high-pressure compaction at different initial Se concentrations and mixing ratios for 48 h and 56 days, respectively. A thres

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8

Spark, K. M., J. D. Wells, and B. B. Johnson. "Sorption of heavy metals by mineral-humic acid substrates." Soil Research 35, no. 1 (1997): 113. http://dx.doi.org/10.1071/s96010.

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The effect of humic acid on the sorption of metals by minerals was studied inrelation to the separate interactions of the humic acid with the minerals, thehumic acid with the metals, and the metals with the minerals. Sorption of themetals in combined mineral–humic acid systems can be explained in termsof generalised sorption reactions.Sorption of the metals in mineral–humic acid systems is dependent onsorption of humic acid by the mineral and on the solubility of themetal–humic acid complex. Sorption is enhanced in the combined systemsfor the minerals goethite and silica due to secondary react

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9

Helios Rybicka, E., W. Calmano, and A. Breeger. "Heavy metals sorption/desorption on competing clay minerals; an experimental study." Applied Clay Science 9, no. 5 (1995): 369–81. http://dx.doi.org/10.1016/0169-1317(94)00030-t.

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10

Venkata Sravani, V., Sarita Tripathi, B. Sreenivasulu, et al. "Post synthetically modified IRMOF-3 for efficient recovery and selective sensing of U(vi) from aqueous medium." RSC Advances 11, no. 45 (2021): 28126–37. http://dx.doi.org/10.1039/d1ra02971a.

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Four IRMOFs following PSM strategy were prepared. The MOFs were characterized by different techniques and were investigated for U(vi) sorption. PSM MOFs displayed impressive fluorescent sensing and selectivity of U(vi) over competing metal ions.

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11

Echeverría, Jesús, Teresa Morera, and Julián Garrido. "Metal-induced chromium(VI) sorption by two calcareous soils." Soil Research 37, no. 3 (1999): 431. http://dx.doi.org/10.1071/s98079.

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Competing anions, notably SO 2- 4 and H2PO- 4 , reduce Cr(VI) sorption; however, the role of cooperative cations in Cr(VI) retention has merited less attention. This research studied the effect of Cd, Cu, Ni, and Zn on sorption of Cr(VI) in 2 calcareous soils: Calcixerollic Xerochrept (CX) and Paralithic Xerorthent (PX). Sorption kinetics and isotherms were combined with sequential extractions and fractional factorial designs. Most cation sorption took place during the first hour, whereas sorption of Cr(VI) was slower. Without the cooperative presence of these cations, no sorption of Cr(VI) wa

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12

Sun, Yue, Weisheng Zheng, Xinchun Ding, and Rajendra P. Singh. "Selective removal of nitrate using a novel asymmetric amine based strongly basic anion exchange resin." Adsorption Science & Technology 38, no. 7-8 (2020): 271–85. http://dx.doi.org/10.1177/0263617420945839.

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In this study, a novel asymmetric amine-based strongly basic anion exchange resin SE-1 was synthesized successfully via the reaction of chloromethylated styrene–divinylbenzene copolymer with N, N-dimethyloctylamine. The sorption performance of SE-1 for selective removal of nitrate in aqueous solution was compared to a commercially available nitrate specialty resin, namely Purolite A 520E (A 520E). It was found that the kinetic data could be described better by the pseudo-second-order model, and SE-1 indicated a faster sorption kinetics than A 520E resin. The Langmiur model was more appropriate

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13

Shang, C., and M. A. Arshad. "Sorption of clopyralid, dicamba and MCPA by two soils with conventional and no-till management." Canadian Journal of Soil Science 78, no. 1 (1998): 181–86. http://dx.doi.org/10.4141/s97-051.

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Sorption is one of the key processes controlling the fate of agrochemicals in soil systems. The sorption of agrochemicals on a soil matrix can be affected by changes in chemical and physical properties caused by different tillage practices. Clopyralid (3,6-dichloro-2-pyridinecarboxylic acid), dicamba (3,6-dichloro-2-methoxybenzoic acid), and MCPA ((4-chloro-2-methylphenoxy)acetic acid), weakly acidic herbicides, are commonly used to control broadleaf weeds in crop production. The sorption of the three herbicides by surface soils (0–5 cm) from different tillage systems was studied by batch equi

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14

Ribe, Espen, Margaretha Söderqvist Lindblad, Olof Dahlman, and Hans Theliander. "Xylan sorption kinetics at industrial conditions Part 2. Modeling." Nordic Pulp & Paper Research Journal 25, no. 2 (2010): 150–55. http://dx.doi.org/10.3183/npprj-2010-25-02-p150-155.

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Abstract A model describing the sorption kinetics for black liquor birch xylan onto unbleached softwood kraft fibers at industrially relevant process conditions has been developed. The experimental results support the suggestion that xylan sorption is a physical process. Our model is based on the assumption that the mass transfer between bulk liquor and fiber surfaces is the rate determining step. The effects of changes in process conditions like temperature, NaOH concentration and ion strength are included in the model. The model fits the experimental data quite well for sorption temperatures

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15

Filisteev, O. V., and A. V. Sharov. "To the question of the influence of a silanol cover on the protolytic properties of aminopropyl silica gels." Chimica Techno Acta 7, no. 4 (2020): 222–28. http://dx.doi.org/10.15826/chimtech.2020.7.4.15.

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The paper proposes a model that describes the acid-base properties of amino groups grafted onto the surface, taking into account their interaction with silanol groups. For this, aminopropyl silica was chosen as an object with well-studied methods of preparation, structure and properties. The isotherms of sorption of hydrogen ions on aminopropyl silica were obtained by potentiometric method. The experimental points were analyzed numerically, taking into account the presence of an electric double layer, the presence of surface processes competing with the sorption of hydrogen ions, and the pecul

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16

Evans, N. D. M., S. Antón Gascón, S. Vines та M. Felipe-Sotelo. "Effect of competition from other metals on nickel complexation by α-isosaccharinic, gluconic and picolinic acids". Mineralogical Magazine 76, № 8 (2012): 3425–34. http://dx.doi.org/10.1180/minmag.2012.076.8.55.

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AbstractThe effect of competition from other metal ions on the complexation of Ni with isosaccharinic acid, gluconic acid and picolinic acid, at high pH, is described. The competing metal ions used were divalent Co, trivalent Eu and tetravalent Th. In the majority of cases, competition from these metal ions followed the predicted pattern, with most anomalies seeming to be caused by sorption of Ni to the many different solid phases formed in presence of the competing ions. The Ni solid phase was shown to change with time during the course of the study. No major unexplained competition effects w

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17

Milenkovic, Aleksandra, Ivana Smiciklas, Jelena Markovic, and Nikola Vukelic. "Immobilization of 60Co and 90Sr ions using red mud from aluminum industry." Nuclear Technology and Radiation Protection 29, no. 1 (2014): 79–87. http://dx.doi.org/10.2298/ntrp1401079m.

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The removal of 60Co and 90Sr from the aqueous phase was tested using red mud - the fine grained residue from bauxite ore processing. This industrial waste represents a mixture of numerous minerals, mainly oxides and hydroxides of Fe, Al, Si, and Ti. Experiments were conducted as a function of contact time, pH, and pollutant concentrations. Kinetic data were well fitted with a pseudo-second order equation. The calculated rate constants and initial sorption rates indicated faster sorption of Sr2+ ions. Removal of both cations rapidly increased with the initial pH increase from 2.5 to 3.5. With t

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18

Calmano, Wolfgang, Wolfgang Ahlf, and Ulrich Förstner. "Study of metal sorption/desorption processes on competing sediment components with a multichamber device." Environmental Geology and Water Sciences 11, no. 1 (1988): 77–84. http://dx.doi.org/10.1007/bf02587766.

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19

Hamárová, Andrea, and Oľga Rosskopfová. "Characterization of Sn-Apatites and 99mTcO4 – anions removal from aqueous solutions." Acta Chimica Slovaca 11, no. 1 (2018): 68–73. http://dx.doi.org/10.2478/acs-2018-0011.

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Abstract Apatite is a natural mineral from the group of phosphate minerals. It originates primarily in rocks and converted limestones. It is also one of the few minerals produced and used by microeconomic systems. Due to its low solubility in water and high sorption capacity, apatite is a suitable sorbent for heavy metals and radionuclides removal from aqueous radioactive waste. Increasing amount of radioactive waste (RAW) has a negative impact on human health as well as on the environment. Production of RAW is constantly increasing because of the use of nuclear energy as well as by the develo

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20

Kutzner, Susann, Mario Schaffer, Tobias Licha, Eckhard Worch, and Hilmar Börnick. "Sorption of organic cations onto silica surfaces over a wide concentration range of competing electrolytes." Journal of Colloid and Interface Science 484 (December 2016): 229–36. http://dx.doi.org/10.1016/j.jcis.2016.08.029.

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21

Danchuk, A. I., Yu V. Grunova, M. K. Gabidulina, and S. Yu Doronin. "Determination of Pb (II), Cu (II), Co (II), Mn (II), and Fe (III) by electrothermal atomization atomic absorption spectrometry after preconcentration with nanofibers." Industrial laboratory. Diagnostics of materials 85, no. 12 (2019): 14–19. http://dx.doi.org/10.26896/1028-6861-2019-85-12-14-19.

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The results of sorption preconcentration of some heavy metal (HM) ions with their subsequent determination in natural and drinking water by electrothermal atomization atomic absorption spectrometry (ETAAS) are presented. The sorption and desorption (0.01 – 1 M HNO3) of lead, copper, iron, cobalt and manganese ions from aqueous media on nanofiber samples obtained from polyacrylonitrile (PAN) with subsequent directed modification by 1.25 M NaOH solution upon heating (70°C) (PAN*) are studied and optimized. Nanofibers were obtained by capillary-free electroforming from solutions of PAN in dimethy

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22

Kang, So Young, Jong Un Lee, and Kyoung Woong Kim. "A Study of the Biosorption Characteristics of Co²⁺ in Wastewater Using Pseudomonas Aeruginosa." Key Engineering Materials 277-279 (January 2005): 418–23. http://dx.doi.org/10.4028/www.scientific.net/kem.277-279.418.

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Pseudomonas aeruginosa biomass was used to investigate the biosorption properties of heavy metals in wastewater. The biosorption isotherm of Co2+ was best described by the Langmuir model when washed cells were employed, and results obtained utilizing heat-treated P. aeruginosa were also adequately represented by a Langmuir sorption isotherm. In contrast, the sorption isotherm involving unwashed P. aeruginosa showed a different isotherm profile and did not attain equilibrium in the range of metal concentrations investigated; the amount of Co2+ uptake increased with increasing initial metal conc

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23

Wang, Chunguang, Jidong Zhang, Junguo Chen, et al. "Understanding competing effect between sorption swelling and mechanical compression on coal matrix deformation and its permeability." International Journal of Rock Mechanics and Mining Sciences 138 (February 2021): 104639. http://dx.doi.org/10.1016/j.ijrmms.2021.104639.

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24

Souza, Matheus Fonseca de, Emanuelle Mercês Barros Soares, Ivo Ribeiro da Silva, Roberto Ferreira Novais, and Mailson Félix de Oliveira Silva. "Competitive sorption and desorption of phosphate and citrate in clayey and sandy loam soils." Revista Brasileira de Ciência do Solo 38, no. 4 (2014): 1153–61. http://dx.doi.org/10.1590/s0100-06832014000400011.

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The increase of organic acids in soils can reduce phosphorus sorption. The objective of the study was to evaluate the competitive sorption of P and citrate in clayey and sandy loam soils, using a stirred-flow system. Three experiments were performed with soil samples (0-20 cm layer) of clayey (RYL-cl) and sandy loam (RYL-sl) Red Yellow Latosols (Oxisols). In the first study, the treatments were arranged in a 2 × 5 factorial design, with two soil types and five combinations of phosphorus and citrate application (only P; P + citrate; and citrate applied 7, 22, 52 min before P); in the second, th

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25

Rahman, M. S., M. W. Clark, L. H. Yee, M. J. Comarmond, T. E. Payne, and E. D. Burton. "Effects of pH, competing ions and aging on arsenic(V) sorption and isotopic exchange in contaminated soils." Applied Geochemistry 105 (June 2019): 114–24. http://dx.doi.org/10.1016/j.apgeochem.2019.04.016.

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26

Alcantara, Rochelle T., Dahlia C. Apodaca, and Manuel R. De Guzman. "The Effect of the Presence of Cu2+ and Fe3+ Metal Ions on the Sorption of Mercuric Ion (Hg2+) by Sargassum cristaefolium." ASEAN Journal of Chemical Engineering 7, no. 1 & 2 (2007): 147. http://dx.doi.org/10.22146/ajche.50138.

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Previous studies have indicated that the seaweed Sargassum cristaefolium is capable of binding with metal ions. The metal sorbing property of S. cristaefolium suggests its possible participation in the removal of Hg2+ ions in water and wastewater. However, the potential application of S. cristaefolium for environmental remediation and precious metals recovery depends on the understanding of the other factors that could play a role in the sorption process. This study illustrates the effects of some variables, such as pH and temperature, and that of the presence of other metal ions on the sorpti

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27

Telchadder, R., K. Smith, and N. D. Bryan. "Europium interaction with a vault backfill at high pH." Mineralogical Magazine 76, no. 8 (2012): 3083–93. http://dx.doi.org/10.1180/minmag.2012.076.8.23.

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AbstractBatch experiments have been used to assess the sorption properties of a potential cementitious repository backfill, NRVB (Nirex reference vault backfill), using Eu3+ as a model trivalent radionuclide and ethylenediaminetetraacetic acid (EDTA) as a competing ligand. The NRVB is an effective scavenger of Eu from solution, with most sorbed within minutes onto the crushed material and less than 1.5% remaining in solution after one day (Rd values in the range 0.3–2.4 × 104 l kg−1). Ultrafiltration showed that nearly all of this remaining Eu (>94%) is attached to NRVB derived colloids or

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28

Mahdy, Ahmed M., Mohamed Z. M. Salem, Asmaa M. Ali, and Hayssam M. Ali. "Optimum Operating Conditions for the Removal of Phosphate from Water Using of Wood-Branch Nanoparticles from Eucalyptus camaldulensis." Materials 13, no. 8 (2020): 1851. http://dx.doi.org/10.3390/ma13081851.

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A batch bio-sorption experiment was conducted on Eucalyptus camaldulensis Dehnh. wood-branch in the form of woody sawdust nanoparticles (nSD-KF) to evaluate their potential efficiency as phosphate bio-sorption capacity. The operating parameters of phosphate bio-sorption including contact time, initial concentration, pH, temperature, dosage, size, competing ion, and the possible mechanisms responsible for phosphate removal from water were investigated. The nSD-KF were green-synthesized by ball mill grinder and phosphate solutions with various concentrations were performed. The results revealed

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29

Li, Man, Tanzil Chowdhury, Andrea Kraetz, et al. "Layered Double Hydroxide Sorbents for Removal of Selenium from Power Plant Wastewaters." ChemEngineering 3, no. 1 (2019): 20. http://dx.doi.org/10.3390/chemengineering3010020.

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Selenium is an essential trace element but is increasingly becoming a contaminant of concern in the electric power industry due to the challenges of removing solubilized selenate anions, particularly in the presence of sulfate. In this work, we evaluate granulated layered double hydroxide (LDH) materials as sorbents for selenium removal from wastewaters obtained from a natural gas power plant with the aim to elucidate the effect of competing ions on the sorption capacities for selenium removal. We first present jar test data, followed by small-scale column testing in 0.43 inch (1.1 cm) and 2 i

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30

Richter, Constanze, Katharina Müller, Björn Drobot, et al. "Macroscopic and spectroscopic characterization of uranium(VI) sorption onto orthoclase and muscovite and the influence of competing Ca2+." Geochimica et Cosmochimica Acta 189 (September 2016): 143–57. http://dx.doi.org/10.1016/j.gca.2016.05.045.

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Phillips, I. R., and C. Chen. "Surface charge characteristics and sorption properties of bauxite-processing residue sand." Soil Research 48, no. 1 (2010): 77. http://dx.doi.org/10.1071/sr09056.

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Bauxite-processing residue sand (BRS) is the primary growth medium used to rehabilitate Alcoa’s residue storage areas (RSAs) in south-west Western Australia. This material is typically coarse-textured, highly saline, highly alkaline, extremely sodic, and deficient in plant nutrients. To develop appropriate fertiliser strategies for optimising rehabilitation performance, a fundamental understanding of the surface charge and nutrient retention properties of BRS is essential. The contribution of permanent (σp) and variable (σv) charge to the overall magnitude and sign of the surface charge, and a

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32

Turov, V. V., V. V. Brei, K. N. Khomenko, and R. Leboda. "The Influence of Aluminium Concentration on the Hydration of ZSM-5-Type Zeolites in Aqueous Suspensions." Adsorption Science & Technology 18, no. 1 (2000): 75–82. http://dx.doi.org/10.1260/0263617001493297.

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The 1H NMR spectral technique has been applied to the study of samples of ZSM-5-type zeolites. These samples were synthesized using the template procedure and possessed various aluminium concentrations in their crystal lattice. The characteristics of the adsorbed water layers and the values of the free surface energy of the adsorbents were determined. It was established that, for aqueous suspensions of zeolites, the highest concentration of water in the pores was characteristic of the sample containing the lowest amount of aluminium. It was suggested that the amount of water in the pores is de

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Punamiya, Pravin, Dibyendu Sarkar, Sudipta Rakshit, and Rupali Datta. "Effect of solution properties, competing ligands, and complexing metal on sorption of tetracyclines on Al-based drinking water treatment residuals." Environmental Science and Pollution Research 22, no. 10 (2015): 7508–18. http://dx.doi.org/10.1007/s11356-015-4145-z.

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Caporale, A. G., M. Pigna, S. M. G. G. Azam, A. Sommella, M. A. Rao, and A. Violante. "Effect of competing ligands on the sorption/desorption of arsenite on/from Mg–Fe layered double hydroxides (Mg–Fe-LDH)." Chemical Engineering Journal 225 (June 2013): 704–9. http://dx.doi.org/10.1016/j.cej.2013.03.111.

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Caporale, Antonio G., Pravin Punamiya, Massimo Pigna, Antonio Violante, and Dibyendu Sarkar. "Effect of particle size of drinking-water treatment residuals on the sorption of arsenic in the presence of competing ions." Journal of Hazardous Materials 260 (September 2013): 644–51. http://dx.doi.org/10.1016/j.jhazmat.2013.06.023.

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36

Yaghi, Nader, and Helinä Hartikainen. "Effect of oxide coatings, pH and competing anion on the sorption of arsenic species onto Light Expanded Clay Aggregates (LECA’s)." Environmental Technology & Innovation 9 (February 2018): 30–37. http://dx.doi.org/10.1016/j.eti.2017.09.009.

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37

Handa, Y. Paul, and Zhiyi Zhang. "Sorption, Diffusion, and Dilation in Linear and Branched Polycarbonate–CO2 Systems in Relation to Solid State Processing of Microcellular Foams." Cellular Polymers 21, no. 4 (2002): 221–35. http://dx.doi.org/10.1177/026248930202100401.

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The sorption and diffusion of CO2 in linear and branched polycarbonates were investigated using a high-temperature, high-pressure gravimetric technique. The branched structure does not affect gas solubility, but affects the gas diffusivity in the sub-Tg region, with CO2 diffusing faster through the branched structure than the linear one. Both solubility and diffusivity depend linearly on pressure at temperatures above Tg, but demonstrate complicated pressure dependence at temperatures below Tg. In the sub-Tg region, volume change of the polymer matrix accompanying the gas dissolution was measu

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38

Antritter, Thomas, Peter Hachmann, Tatiana Gambaryan-Roisman, Bernhard Buck, and Peter Stephan. "Spreading of Micrometer-Sized Droplets under the Influence of Insoluble and Soluble Surfactants: A Numerical Study." Colloids and Interfaces 3, no. 3 (2019): 56. http://dx.doi.org/10.3390/colloids3030056.

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Wetting and spreading of surfactant solutions play an important role in many technical applications. In printing processes, the size of individual droplets is typically on the order of a few tens of microns. The purpose of this study is to develop a better understanding of the interaction between spreading and surfactant transport on these small length and related time scales. Therefore, numerical simulations based on the volume-of-fluid method including Marangoni stresses and transport of an insoluble or soluble surfactant are performed. The results for an insoluble surfactant show competing

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39

Sander, Michael, and Joseph J. Pignatello. "On the Reversibility of Sorption to Black Carbon: Distinguishing True Hysteresis from Artificial Hysteresis Caused by Dilution of a Competing Adsorbate." Environmental Science & Technology 41, no. 3 (2007): 843–49. http://dx.doi.org/10.1021/es061346y.

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40

González, M. A., I. Pavlovic, and C. Barriga. "Cu(II), Pb(II) and Cd(II) sorption on different layered double hydroxides. A kinetic and thermodynamic study and competing factors." Chemical Engineering Journal 269 (June 2015): 221–28. http://dx.doi.org/10.1016/j.cej.2015.01.094.

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Noli, Fotini, Eleftherios Papalanis, Panagiotis Tsamos, and Maria Kapnisti. "The effect of humic acid and competing cations Na+ and Ca2+ on the sorption of uranium and europium, onto bentonite from Kimolos Island (Greece)." Journal of Radioanalytical and Nuclear Chemistry 328, no. 3 (2021): 1231–41. http://dx.doi.org/10.1007/s10967-021-07722-y.

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van Halem, D., S. G. J. Heijman, R. Johnston, et al. "Subsurface iron and arsenic removal: low-cost technology for community-based water supply in Bangladesh." Water Science and Technology 62, no. 11 (2010): 2702–9. http://dx.doi.org/10.2166/wst.2010.463.

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The principle of subsurface or in situ iron and arsenic removal is that aerated water is periodically injected into an anoxic aquifer through a tube well, displacing groundwater containing Fe(II). An oxidation zone is created around the tube well where Fe(II) is oxidised. The freshly formed iron hydroxide surfaces provide new sorption sites for soluble Fe(II) and arsenic. The system's efficiency is determined based on the ratio between abstracted volume with reduced iron/arsenic concentrations (V) and the injected volume (Vi). In the field study presented in this paper, the small-scale applica

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Kabiri, Shervin, and Michael J. McLaughlin. "Durability of sorption of per- and polyfluorinated alkyl substances in soils immobilized using common adsorbents: 2. Effects of repeated leaching, temperature extremes, ionic strength and competing ions." Science of The Total Environment 766 (April 2021): 144718. http://dx.doi.org/10.1016/j.scitotenv.2020.144718.

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Tsezos, Marios. "Biological Removal of Ions: Principles and Applications." Advanced Materials Research 20-21 (July 2007): 589–96. http://dx.doi.org/10.4028/www.scientific.net/amr.20-21.589.

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Microbial cell – soluble species interactions can be part of technologies for the treatment of metal/metalloid and radionuclide bearing water streams in order to sequester the targeted species. Interactions of microbial cells and soluble targeted species include passive and active processes of metabolically inactive or active biomass, and result in the reduction of their mobility and toxicity. Different parts of the cell may sequester targeted species via processes such as complexation, chelation, coordination, ion exchange, precipitation and reduction. Collectively, these mechanisms have been

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Araujo, Anderson Mendes, Josimar Henrique de Lima Lessa, Liniker André Ferreira, Luiz Roberto Guimarães Guilherme, and Guilherme Lopes. "Soil management and ionic strength on selenite retention in oxidic soils." Ciência e Agrotecnologia 42, no. 4 (2018): 395–407. http://dx.doi.org/10.1590/1413-70542018424007318.

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ABSTRACT Sorption of selenium (Se) on soils may be influenced by factors that are changed though agricultural practices usually performed for crop production, such as soil pH, competing anion and organic matter contents, among others. This study aimed to evaluate the influence of soil management and ionic strength (IS) on Se retention in Brazilian soils, which is important to predict Se availability in both systems, native and cultivated soils. For that, adsorption and desorption reactions of Se were evaluated in 16 soil samples (eight from cultivated soils and eight from native soils), using

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Maier, Martin V., Yvonne Wolter, Daniel Zentler, Christian Scholz, Charlotte N. Stirn, and Margot Isenbeck-Schröter. "Phosphate Induced Arsenic Mobilization as a Potentially Effective In-Situ Remediation Technique—Preliminary Column Tests." Water 11, no. 11 (2019): 2364. http://dx.doi.org/10.3390/w11112364.

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Arsenic (As) contamination of groundwater is commonly remediated by pump and treat. However, this technique is difficult to apply or maintain efficiently because the mobility of arsenic varies depending on the geochemical aquifer conditions. Arsenic interacting with the sediment can cause strong retardation, which is counteracted by ions competing for sedimentary sorption sites like silica, bicarbonate and phosphate. Phosphate competes most effectively with arsenic for sorption sites due to its chemical similarity. To accelerate an ongoing but ineffective pump and treat remediation, we examine

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Miroshnychenko, N. N., and O. A. Kutz. "Selective absorption of heavy metals by soil and humic acids at different pH levels." Fundamental and Applied Soil Science 17, no. 1-2 (2016): 74–82. http://dx.doi.org/10.15421/041607.

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Studying processes of sorption-desorption of heavy metals from soil and its individual components allow to predict long-term effects under conditions of multielement contamination. Cations of heavy metals are showing competitive relationship due to their specific adsorption by components of the soil absorption complex, in particular humic acids. Interaction of chernozem podzolized heavy loam, isolated preparation of humic acids and soil residue after its removal with the solution which contain sulphates of Zn, Cd, Ni, Co and Cu in equal ratio were simulated at different pH levels. The task of

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Nobaharan, Khatereh, Sepideh Bagheri Novair, Behnam Asgari Lajayer, and Eric van Hullebusch. "Phosphorus Removal from Wastewater: The Potential Use of Biochar and the Key Controlling Factors." Water 13, no. 4 (2021): 517. http://dx.doi.org/10.3390/w13040517.

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In recent years, a large volume of literature has been published regarding the removal of phosphorus (P) from wastewater. Various sorbing materials, such as metal oxides and hydroxides, carbonates and hydroxides of calcium (Ca) and magnesium (Mg), hydrotalcite, activated carbon, anion exchange resins, industrial solid wastes and organic solid wastes, have been suggested for P removal. Many of these sorbents are expensive and/or may cause some environmental problems. In contrast, biochar, as an economical and environmentally friendly sorbing material, has received much attention in recent years

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Larsson, Maja A., Ingmar Persson, Carin Sjöstedt, and Jon Petter Gustafsson. "Vanadate complexation to ferrihydrite: X-ray absorption spectroscopy and CD-MUSIC modelling." Environmental Chemistry 14, no. 3 (2017): 141. http://dx.doi.org/10.1071/en16174.

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Environmental contextVanadium, a metal pollutant from fossil fuels and slags, may be toxic, thereby necessitating an understanding of its environmental chemistry. One important factor that controls the mobility and bioavailability of vanadium is its binding to iron oxides. This study focuses on the characterization and modelling of vanadium adsorption onto ferrihydrite. The new model can be used to simulate the transport and bioavailability of vanadium in the environment. AbstractThe mobility of vanadium in the environment is influenced by sorption to metal (hydr)oxides, especially those conta

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Pöschl, U., Y. Rudich, and M. Ammann. "Kinetic model framework for aerosol and cloud surface chemistry and gas-particle interactions: Part 1 – general equations, parameters, and terminology." Atmospheric Chemistry and Physics Discussions 5, no. 2 (2005): 2111–91. http://dx.doi.org/10.5194/acpd-5-2111-2005.

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Abstract. Aerosols and clouds play central roles in atmospheric chemistry and physics, climate, air pollution, and public health. The mechanistic understanding and predictability of aerosol and cloud properties, interactions, transformations, and effects are, however, still very limited. This is due not only to the limited availability of measurement data, but also to the limited applicability and compatibility of model formalisms used for the analysis, interpretation, and description of heterogeneous and multiphase processes. To support the investigation and elucidation of atmospheric aerosol

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