Humic substances
Humic Substances in Aquatic Ecosystems: A Review
... ABSTRACT: Humic substances, including humic acid, fulvic acid and humin, represent a class of naturally occurring complex compounds found in soil, water and sediments that are formed by the ...
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The simultaneous removal of turbidity and humic substances from water using the enhanced coagulation process
... of humic substances from ...of humic substances and meeting the requirements of the first stage of disinfectants/disinfection byproducts law (D/DBP) to reduce the total organic carbon (TOC) ...
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Response of Onion Yield under Field Conditions to Humic Substances Derived from Different Sources
... Having low soil fertility and soil OM, the low avail- ability of nutrients due to poor recycling and absorp- tion on exchangeable site thereof crops are applied with fertilizers such as urea and diammonium phos- phate ...
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QUALITY OF GROUNDWATER AND AQUATIC HUMIC SUBSTANCES FROM MAIN RESERVOIRE OF GROUND WATER No. 333
... mixing humic substances infiltration from the ...of humic substances can also be created by the overlap- ping effects of different geochemical processes and human ...aquatic humic ...
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Effect of humic substances extracted from Agricultural Moroccan soil on photolysis of Imazaquin herbicide
... Humic substances representing the principal fraction of organic matter receive increased attention because their reactivity as sunlight ...origin, humic substances have a remarkable ability to ...
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Plant growth promoting bacteria and humic substances: crop promotion and mechanisms of action
... little attention are dedicated to formulation procedures, delivering application and effectiveness under field con- ditions. Several vehicles for PGPB delivery to crops are used including ethylcellulose, modified starch, ...
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Effects of humic substances on Fe(II) sorption onto aluminum oxide and clay
... Natural organic matter, which includes the humi- fied materials referred to as humic substances (HS), is a ubiquitous reactive component of terrestrial and aquatic environments [49, 50]. It is well known ...
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Heavy metal distribution between fractions of humic substances in heavily polluted soils
... between humic and fulvic acids in 20 samples of heavily polluted ...of humic substances with consequent humic acids precipitation by acidification was ...On humic acids, a limited ...
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Improving Hydrophilicity of Polyethersulfone Membrane Using Silver Nanoparticles for Humic Substances Removal
... Humic substances are the predominant species of dissolved natural organic matter (NOM) which can be categorised into humic acid (HA), fulvic acid and humin based on their solubility at different ...
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Dissolution of Humic Substances from Highly Humic Volcanic Ash Soil as Affected by Anionic Surfactant, Electrolyte Concentration and pH
... dissolving humic substances increases with an increase of pH due to the pH dependent charge, those increases is likely to have affected the dissolution of the humic substances from the ...
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Batch study on the removal of humic substances in aqueous solutions by adsorption using Coula edulis nut shell activated carbon as adsorbent
... Humic substances used in this study are extracted from compost plant ...non-humic substances soluble (sugars, proteins) that may interfere with humic substances ...of ...
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The effect of the humic substances, garlic (Allium sativum L.), wormwood (Artemisia absinthium) and walnut (Juglans regia) on growth parameters and mortality of broiler chickens
... The total mortality was not recorded in the second experimental group of chickens that consumed a diet containing 1.5% of humic substances, 0.4% of garlic powder and milled dried walnut leaves (E2). In the ...
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Identification of alkaloids in methanol extract from leaves of Semenovia suffruticosa when humic substances were added to its root soil in the primary growth
... When humic substances (HS) was added to the root soil of plants in the initial growth phase and the extraction was carried out along with the analysis of samples, some compositions were totally removed and ...
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Effect of humic substances and clay minerals on the hydrosorption capacity of clay particles in meadow soils (Middle Priamurje, Far East of Russia)
... It was found out that in different soil types, the amount of adsorbed water and the value of the main parameter of the equation of the water vapor adsorption isotherm (Wmg—maximal hydroscopic moisture) are determined by ...
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The effect of pH, dissolved humic substances, and ionic composition on the transfer of iron and phosphate to particulate size fractions in epilimnetic lake water
... The effect of pH, dissolved humic substances, and ionic composition on the transfer of iron and phosphate to particulate size fractions in epilimnetic lake water Abstract-Transformations[r] ...
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Al(III) and Fe(III) binding by humic substances in freshwaters, and implications for trace metal speciation
... Therefore, the equilibrium description of binding by humic substances and hydroxide precipitation is accurate only if these reactions take place rapidly compared to the redox and ageing processes. With the ...
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Application of experimental design approach for optimization of the photocatalytic degradation of humic substances in aqueous solution using immobilized ZnO nanoparticles
... desired goal for operational parameters was the "within the range" status, while "maximum removal" was selected as the humic substances degradation and color removal efficiency. Therefore, ...
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Humic substances as an environmental- friendly organic wastes potentially help as natural anti-virus to inhibit COVID-19
... for humic acids, the FA are in the range of 2000-4000, and for humicacids - ...index humic acids of organic waste more promising as an active ingredient for microbicidal preparations (Kornilayeva et ...of ...
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Experimental design and response surface modeling for optimization of humic substances removal by activated carbon: A kinetic and isotherm study
... In the present study, RSM based on the four- factor-three-level BBD was employed as an experimental design tool to explain the effect of main operating parameters (including HA concentration, pH, contact time, and ...
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Determination of Apparent Formation Constants of Eu(III) with Humic Substances by Ion Selective Liquid Membrane Electrode
... Prior to the titration to determine the formation constants of Eu(III) with the humic substances, the applicability of the present ISE was checked. A fresh nitrobenzene so- lution containing ...
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