a further study on adsorption interaction of humic acid on

  • A further study on adsorption interaction of humic acid on

    01.02.2015· Humic acid (HA) was the predominant component of the MHA (modified humic acid) binder invented by the authors. This work aims to study the effect of the solution pH value on the HA adsorption onto natural magnetite/hematite/quartz particles and the strength of green pellets with the MHA binder. The SEM images for HA indicated that HA had distinct morphology at different pH values. The adsorption

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  • A further study on adsorption interaction of humic acid on

    Humic acid (HA) was the predominant component of the MHA (modified humic acid) binder invented by the authors. This work aims to study the effect of the solution pH value on the HA adsorption onto natural magnetite/hematite/quartz particles and the strength of green pellets with the MHA binder. The SEM images for HA indicated that HA had distinct morphology at different pH values. The adsorption

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  • A further study on adsorption interaction of humic acid on

    Abstract Humic acid (HA) was the predominant component of the MHA (modified humic acid) binder invented by the authors. This work aims to study the effect of the solution pH value on the HA adsorption onto natural magnetite/hematite/quartz particles and the strength of green pellets with the MHA binder. The SEM images for HA indicated that HA had distinct morphology at different pH values.

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  • A further study on adsorption interaction of humic acid on

    A further study on adsorption interaction of humic acid on natural magnetite, hematite and quartz in iron ore pelletizing process_ Effect of the solution pH value November 2014 Powder Technology

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  • A further study on adsorption interaction of humic acid on

    A further study on adsorption interaction of humic acid on natural magnetite, hematite and quartz in iron ore pelletizing process: Effect of the solution pH value Author: Zhou, Youlian, Zhang, Yuanbo, Li, Guanghui, Wu, Yudong, Jiang, Tao Source: Powder technology

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  • Comparative study on the adsorption interactions of humic

    01.01.2014· On one hand, when humic acid binder was added into iron ore concentrations in the pelletizing process, the humic acid was adsorbed onto the surface of iron ore particles; on the other hand, the HA molecules interacted and interwove with each other, bridging and wrapping the individual iron ore particles, so that the separate iron ore particles were agglomerated. In the green pellets, the chemisorption between HA and iron ore

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  • Adsorption of Humic Acid on Goethite: Isotherms, Charge

    In this study, the adsorption of purified Aldrich humic acid (PAHA) on goethite was examined as a function of the environmental conditions (pH, salt concentration, and free concentration of PAHA) together with the proton adsorption to PAHA, goethite, and their mixtures. The induced charges on both components were separated on the basis of the difference between the charge/pH curves of the

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  • Mechanism of humic acid adsorption as a flotation

    01.03.2021· Humic acid (HA), as an environmentally friendly depressant, absorbed significant attention for possible cleaner production within mineral separation by selective separation, especially for reverse flotation of iron oxides. However, a few systematic studies were addressed its effect on the iron ore reverse cationic flotation in the presence of complex silicates and its adsorption mechanism on the

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  • Adsorption of humic and fulvic acids onto a range of

    15.09.2020· Ko et al. investigated the adsorption of humic and fulvic acids onto hematite at three pH values, where the particles were positively charged (pH 7), neutral (pH 9.2) and negatively charged (pH 11). As expected, the amounts adsorbed decreased as the charge on the surface became more negative, due to repulsion between the negatively charged organic molecules and the surface. However, even

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  • An investigation of the effects of fulvic and humic acids

    dietary supplements. Changes in absorption may result in a loss of proper physiological functioning in the body or in unwanted effects of overdose. This study investigated the effect of fulvic and humic acids on the absorption of commonly administered classes of drugs, vitamins and minerals using the everted

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  • Adsorption of Humic Acid on Goethite: Isotherms, Charge

    In this study, the adsorption of purified Aldrich humic acid (PAHA) on goethite was examined as a function of the environmental conditions (pH, salt concentration, and free concentration of PAHA) together with the proton adsorption to PAHA, goethite, and their mixtures. The induced charges on both components were separated on the basis of the difference between the charge/pH curves of the

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  • Study of Humic Acid Adsorption Character on Natural Maifan

    Study of Humic Acid Adsorption Character on Natural Maifan Stone: adsorption indicate the interaction of HA and MS. However, the reason for these changes is still unclear. Thus, the results show that the natural MS exhibited a certain adsorption capacity for HA. It is promising to develop novel natural MS-based materials for adsorption of HA. INTRODUCTION Natural organic matter (NOM) is

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  • Adsorption of Humic Acid to Mineral Particles. 1. Specific

    The adsorption of humic acid to mineral particles can be characterized by specific and electrostatic interactions and by polydispersity effects. In this paper we focus on the adsorbed amount and discuss the importance of specific and electrostatic interactions. The adsorption of purified Aldrich humic acid onto hematite has been measured as a function of pH and salt concentration as well as in

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  • Adsorption of humic acid from aqueous solutions on

    Batch adsorption experiments were carried out and optimum humic acid adsorption on chitosan-ECH beads occurred at pH 6.0, agitation rate of 300 rpm and contact time of 50 min. Adsorption equilibrium isotherms were analyzed by Langmuir and Freundlich models. Freundlich model was found to show the best fit for experimental data while the maximum adsorption capacity determined from Langmuir

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  • Adsorption Interactions of Humic Acids with Biocides

    We also found that the limiting adsorption of humic acids from the younger sapropel, of 7.1 × 10−6 mol/m2, and from sphagnum peat, of 7.6 × 10−6 mol/m2, are higher than the limiting

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  • Adsorption of lignite humic acid onto magnetite particle

    A further study on the interaction between one of organic active fraction of the binder and iron ore surface [J]. International Journal of Mineral Processing, 2011, 100(4): 172–178. CrossRef Google Scholar [6] KANG S and XING Bao-shan. Humic acid fractionation upon sequential adsorption onto goethite [J]. Langmuir, 2008, 24: 2525–2531. CrossRef Google Scholar [7] WANG Qiang, WEI Shi-qiang

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  • [PDF] Adsorption of boric acid on pure and humic acid

    In this study, boric acid adsorption on pure am-Al(OH)3 and 5% (w/w) humic acid (HA) coated am-Al(OH)3 were investigated both as a function of pH (4.5-11) and initial boric acid concentration (0-4.5 mmol L(-1)). Batch adsorption isotherm experiments were also conducted with samples exposed to atmospheric CO2 and anaerobic (N2) conditions to examine the effects of dissolved CO2 on boric acid

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  • Figure 8 from The effect of humic acid adsorption on pH

    Fig. 8. Sensitivity of magnetite sols to indifferent electrolyte (NaCl) in the absence and the presence of humic acid at pH 4 and room temperature. CCC is the critical coagulation concentration determined from the stability plot in Fig. 7. The amount of positively charged FeOH+2 sites on magnetite is between 0.1 and 0.35 mmol/g (in 0.01 and 1 M NaCl, respectively), the dissociation degree of

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  • Interactions of three s-triazines with humic acids of

    27.08.2008· Interactions of three s-triazines with humic acids of different structure. Celano G(1), Smejkalová D, Spaccini R, Piccolo A. Author information: (1)Dipartimento di Produzione Vegetale, Università degli Studi della Basilicata, Via Nazario Sauro 85, 85100 Potenza, Italy. The adsorption of three s-triazines (atrazine, terbutylazine, and simazine) on three different humic acids (HAs), before

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  • Two-Dimensional Correlation Spectroscopic Analysis on the

    Adsorption of humic and fulvic acids onto a range of adsorbents in aqueous systems, and their effect on the adsorption of other species: A review. Separation and Purification Technology 2020, 247,

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