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a further study on adsorption interaction of humic acid on

a further study on adsorption interaction of humic acid on

A further study on adsorption interaction of humic acid on ...

2015-2-1 · 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.

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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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Comparative study on the adsorption interactions of

2014-1-1 · A novel type of organic binder, modified humic acid (MHA), has been developed and patented in China. Humic acid (HA) is one of the main active fractions in the MHA binder. In this study, adsorption of HA onto natural magnetite, hematite and quartz surfaces as a function of initial HA concentration was comparatively investigated.

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The effect of humic acid on the adsorption of REEs on ...

2006-11-15 · For a better understanding of adsorption of the rare earth elements (REEs) onto minerals and its controlling factors, adsorption experiments were performed at pH range of from 3 to 10 with kaolin (1500 mg/L) in a matrix of various concentration of NaNO 3 and about 20. μg/L of the total REEs as well as various amounts of humic acid (HA).. The adsorption of HA onto the kaolin occurred over a ...

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Adsorption of a soil humic acid at the surface of goethite ...

2007-2-15 · 2.3.. Soil humic acid adsorption isothermsTo obtain the adsorption isotherms of SHA on goethite, additions of different volumes of a SHA solution to suspensions of iron hydroxide were carried out, so that the initial concentration of SHA varied between 10 and 200 mg L − 1 and that of goethite was 0.6 g L − 1.Ionic strengths of 0.1 and 0.01 M were used in the study and the pH was adjusted ...

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Detailed Adsorption Studies of Active Humic Acid Fraction ...

Humic acid (HA) is used as one of organic active fractions of a new binder in the process of iron ore agglomeration. The purpose of this study was to determine the detailed adsorption ...

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(PDF) On the study of Th(IV)-humic acid interactions by ...

Further, complexation constants have been measured to be up to three orders of magnitude greater for Pu(IV) as compared to Th(IV) as measured in 0.1 M NaCl and 10 mg C /L of humic acid for pH 4e7 ...

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Adsorption of lignite humic acid onto magnetite particle ...

2012-7-1 · Modified humic acid (MHA) binder based on lignite humic substances is a novel sort of promising organic binder for iron ore pellets. Humic acid (HA) is one of the main ingredients of MHA binder. Pure HA was firstly isolated from lignite and then adsorption of HA onto magnetite particle surface was investigated. The final results indicate that the adsorption of HA onto magnetite surface accords ...

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Strong adsorption of DNA molecules on humic acids ...

2011-3-3 · Analysing soil microbial communities is often hampered by DNA adsorption on soil organic compounds such as humic acids. However the role of humic acids in DNA adsorption and stability in soils remains controversial. To characterize DNA–humic acid interactions, we studied DNA adsorption on two commercially available humic acids and a soil humic acid extracted from an Andosol. Desorption of ...

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ADSORPTION OF SOIL-DERIVED HUMIC ACID BY SEVEN

2017-5-8 · ADSORPTION OF SOIL-DERIVED HUMIC ACID BY SEVEN CLAY MINERALS: A SYSTEMATIC STUDY REBECCA A. CHOTZEN,TAMARA POLUBESOVA*, BENNY CHEFETZ, AND YAEL G. MISHAEL* Department of Soil and Water Sciences, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem,

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Adsorption of lignite humic acid onto magnetite particle ...

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 Article Nov 2014

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(PDF) On the study of Th(IV)-humic acid interactions by ...

Further, complexation constants have been measured to be up to three orders of magnitude greater for Pu(IV) as compared to Th(IV) as measured in 0.1 M NaCl and 10 mg C /L of humic acid for pH 4e7 ...

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The effect of humic acid adsorption on pH-dependent ...

The pH-dependent adsorption of humic acid (HA) on magnetite and its effect on the surface charging and the aggregation of oxide particles were investigated and nanoparticles are stabilized in a way of combined steric and electrostatic effects. The pH-dependent adsorption of humic acid (HA) on magnetite and its effect on the surface charging and the aggregation of oxide particles were investigated.

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Adsorption of lignite humic acid onto magnetite particle ...

2012-7-1 · Modified humic acid (MHA) binder based on lignite humic substances is a novel sort of promising organic binder for iron ore pellets. Humic acid (HA) is one of the main ingredients of MHA binder. Pure HA was firstly isolated from lignite and then adsorption of HA onto magnetite particle surface was investigated. The final results indicate that the adsorption of HA onto magnetite surface accords ...

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The influence of humic and fulvic acids on ...

This study found that humus, mainly comprising humic acid (HA) and fulvic acid (FA), can facilitate the adsorption of As(III) by PSMPs. The phenolic hydroxyl groups provided by HA contribute to ...

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Adsorption of 17β-estradiol onto humic-mineral

Owing to the complex soil composition, estrogen may exhibit a variety of behaviors at the water/soil interface. This study demonstrated the role of humic acid (HA) on the 17β-estradiol (E2) adsorption by clay minerals (montmorillonite, kaolinite, and hematite). The interfacial behaviors were investigated using adsorption kinetics and isotherms ...

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Effect of humic acid on as redox transformation and ...

Due to the importance of adsorption kinetics and redox transformation of arsenic (As) during the adsorption process, the present study elucidated natural organic matter (NOM) effects on As adsorption-desorption kinetics and speciation transformation. The experimental procedures were conducted by exa

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Selective adsorption of soil humic acid on binary systems ...

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 ...

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ADSORPTION OF SOIL-DERIVED HUMIC ACID BY SEVEN

2017-5-8 · ADSORPTION OF SOIL-DERIVED HUMIC ACID BY SEVEN CLAY MINERALS: A SYSTEMATIC STUDY REBECCA A. CHOTZEN,TAMARA POLUBESOVA*, BENNY CHEFETZ, AND YAEL G. MISHAEL* Department of Soil and Water Sciences, Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem,

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IJERPH | Free Full-Text | Effect of Humic Acid on As Redox ...

Due to the importance of adsorption kinetics and redox transformation of arsenic (As) during the adsorption process, the present study elucidated natural organic matter (NOM) effects on As adsorption-desorption kinetics and speciation transformation. The

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Adsorption of lignite humic acid onto magnetite particle ...

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 Article Nov 2014

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The effect of humic acid adsorption on pH-dependent ...

The pH-dependent adsorption of humic acid (HA) on magnetite and its effect on the surface charging and the aggregation of oxide particles were investigated and nanoparticles are stabilized in a way of combined steric and electrostatic effects. The pH-dependent adsorption of humic acid (HA) on magnetite and its effect on the surface charging and the aggregation of oxide particles were investigated.

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[Forming mechanism of humic acid-kaolin complexes and

The interaction between soil organic components and mineral components was explored in this study. Humic acid and kaolin were used for the preparation of organic-mineral complexes with different contents of organic matter, for experimental study of the adsorption of trichloroethylene.

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An investigation of the effects of fulvic and humic acids ...

2015-8-4 · 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

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Reduced adsorption of ametryn in clay, humic acid, and ...

To further support the existence of this weak interaction, the adsorption of ametryn, a triazine herbicide, was investigated in kaolinite clay, humic acid, and soil under pseudo-Fenton conditions. At a low addition rate of ferric ion, the adsorption of ametryn in clay, humic acid, and soil was enhanced due to the decreased pH resulting from the ...

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The effect of Cu and Cu-humic acids on the adsorption of ...

Humic acids are complex compounds of the soil. They play an important role in the interaction with pesticides. In this study we use a well characterized humic acid by Schnitzer (2000) which was kindly donated by Dr S.U. Khan, Professor, in George Mason University, USA. Their characteristics are summarized in table 1 (Schnitzer, 2000).

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Humic Acid Fertilizer Improved Soil Properties and Soil ...

2019-8-19 · In this study, humic acid increased the activities of sucrase and phosphatase in the soil, and the same results were obtained by applying humic acid to other crops 34. This is because humic acid ...

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IJERPH | Free Full-Text | Effect of Humic Acid on As Redox ...

Due to the importance of adsorption kinetics and redox transformation of arsenic (As) during the adsorption process, the present study elucidated natural organic matter (NOM) effects on As adsorption-desorption kinetics and speciation transformation. The

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Linear and nonlinear investigations for the adsorption of ...

2021-6-30 · The adsorption nature was further ... Enhanced adsorption of ionizable aromatic compounds on humic acid-coated ... A. F. Kinetics and equilibrium study for the adsorption of textile dyes on ...

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Adsorption of sulfamethoxazole (SMZ) and ciprofloxacin ...

2.2 Adsorption experiments of SMZ and CIP to HA In the batch experiment, the optimum dosage of humic acid was 4 g L −1.The influence of ionic strength was monitored by adding CaCl 2 at fixed concentration of 0.001, 0.005, 0.01, 0.05, or 0.1 mol L −1.The temperature effect was quantified during the adsorption experiments at 25 °C (298 K), 35 °C (308 K) and 45 °C (318 K).

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