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

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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

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Interaction between humic acid and silica in reverse ...

Combined organic and inorganic fouling is a primary barrier constraining the performance of reverse osmosis (RO) membrane. In this work, we conducted a systematic study focusing on the synergetic fouling effects of silica and humic acid (HA) in RO process, and found the critical silica concentration where the fouling pattern changed qualitatively.

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Study on biosorption of humic acid by activated sludge ...

2008-5-1 · Humic acid (sodium salt, technical grade) was purchased from Aldrich and used without further purification. For characterization, it was converted to the acid form HA following Fukushima et al. . The results of the elemental analysis were: C = 49.65%, H = 4.49%, N = 0.96%, S = 0.33%, and ash content was 2.46%. Stock solution of this salt was ...

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Study on the co-effect of maifanite-based photocatalyst ...

2020-11-26 · In this study, the co-effect of clay mineral-based photocatalyst and humic acid on the photodegradation of dye was revealed for the first time. The clay mineral-based photocatalyst, maifanite/g-C3N4, was prepared using the co-calcining method. The physical and chemical properties of the maifanite/g-C3N4 photocatalysts with various ratios were characterized by

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Tetracycline adsorption on kaolinite: pH, metal cations ...

2011-4-3 · This study investigated the effects of pH, background electrolyte cations (Li +, Na +, K +, Ca 2+ and Mg 2+), heavy metal Cu 2+ and humic acid (HA) on tetracycline adsorption onto kaolinite. Results showed that tetracycline was greatly adsorbed by kaolinite over pH 3–6, then decreased with the increase of pH, indicating that tetracycline ...

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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

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Shilajit: A Natural Phytocomplex with Potential ...

2012-2-23 · Shilajit is a natural substance found mainly in the Himalayas, formed for centuries by the gradual decomposition of certain plants by the action of microorganisms. It is a potent and very safe dietary supplement, restoring the energetic balance and potentially able to prevent several diseases. Recent investigations point to an interesting medical application toward the

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(PDF) A Study of Adsorption Behaviour of Humic Acid and ...

A Study of Adsorption Behaviour of Humic Acid and Americium on the Kaolinite ... process worldwide for removal of humic substances. Further research is needed to improve the coagulation process ...

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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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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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Determination of interactions of ferrihydrite-humic acid ...

2021-11-11 · Ferrihydrite often precipitates with humic acid in natural ways, affecting the fate of lead ions, the stabilization of humic acid, and the aging process of ferrihydrite. A series of 2-line ferrihydrite-humic (Fh-HA) acid with varying C loadings has been prepared, the morphology and surface properties of Fh-HA organo-minerals have been characterized, and the adsorption

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Interaction between humic acid and silica in reverse ...

Combined organic and inorganic fouling is a primary barrier constraining the performance of reverse osmosis (RO) membrane. In this work, we conducted a systematic study focusing on the synergetic fouling effects of silica and humic acid (HA) in RO process, and found the critical silica concentration where the fouling pattern changed qualitatively.

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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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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 Cadmium (II) on Humic Acid Coated

In this study, using humic acid (HA) as model NOM, the adsorption of Cd(II) on humic acid coated titanium dioxide (HA-TiO(2)) NPs was investigated. Solution parameters such as

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Mechanism of adsorption of humic acid by modified aged ...

2018-10-1 · The adsorption process was facilitated by the continuous decrease in H + concentration, thus enhancing the activity of the base groups of AR; therefore, the adsorption effect of humic acid was strengthened. 39 However, when the pH increased above 8, the molecules in humic acid reacted with OH − to form ions, thus enhancing dissolution ...

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Tetracycline adsorption on kaolinite: pH, metal cations ...

2011-4-3 · This study investigated the effects of pH, background electrolyte cations (Li +, Na +, K +, Ca 2+ and Mg 2+), heavy metal Cu 2+ and humic acid (HA) on tetracycline adsorption onto kaolinite. Results showed that tetracycline was greatly adsorbed by kaolinite over pH 3–6, then decreased with the increase of pH, indicating that tetracycline ...

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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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Study of Humic Acid Adsorption Character on Natural

2020-3-23 · Introduction. Natural organic matter (NOM) is a mixture of organic chemicals, including humic acid (HA), folic acid, amino acids, and so forth. 1 The presence of NOM in water can cause serious environmental problems because NOM are prone to produce carcinogenic byproducts during the disinfection of water. 2 They can also combine with heavy metals

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Mechanism of adsorption of humic acid by modified aged ...

2018-10-1 · 1 Introduction . Humic acid, a type of natural organic matter existing in nature, is formed by the decomposition and/or recombination of various plants, animals and microorganisms. 1,2 It contains low complexity or polymers of polar functional groups, such as –COOH, –OH, –NH 2, –SH, –C O. Its abundance in soil, rivers and lakes, and other natural

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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

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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 Boric Acid on Pure and Humic Acid Coated

The fate and mobility of boric acid in the environment is largely controlled by adsorption reactions with soil organic matter and soil minerals to form surface complexes (Soil Sci. Soc. Am. J. 1991, 55, 1582; Geochim. Cosmochim. Acta 2002, 67, 2551; Soil Sci. Soc. Am. J. 1995, 59, 405; Environ. Sci. Technol. 1995, 29, 302). In this study, boric acid adsorption on pure am-Al(OH)3

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Influence of Humic Acid Complexation with Metal Ions on ...

2015-11-23 · Humic acids (HAs) can act as electron shuttles and mediate biogeochemical cycles, thereby influencing the transformation of nutrients and environmental pollutants. HAs commonly complex with metals ...

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

2014-7-9 · 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

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Adding Humic Acids to Gelatin Hydrogels: A Way to Tune ...

2021-12-22 · Exploring the chance to convert biowaste into a valuable resource, this study tests the potential role of humic acids (HA), a class of multifunctional compounds obtained by oxidative decomposition of biomass, as physical agents to improve gelatin’s mechanical and thermal properties. To this purpose, gelatin–HA aqueous samples were prepared at increasing HA

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Monitoring the Effect of Three Humic Acids on a Model ...

2008-2-2 · The sorption of three humic acids to 1,2-dipalmitoyl-sn-glycero-3-phosphocholine multilamellar vesicle model membrane systems was studied by phosphorus nuclear magnetic resonance (31P NMR). The effects of temperature and pH were investigated. The gel → bilayer transition did not appear to be affected by any of the humic acids at pH 7; however, all three

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