HUMIC ACIDS IN THE ENVIRONMENT [PDF]
, 2023 Humic acids, belonging to the humic substances, are the most reactive organic compounds in water, soil and sediments. They are known for their role in processes related to soil structure, biology, and chemistry, as well as for their effects on the behavior of environmental pollutants.
Marković, Mirjana +3 more
core +9 more sources
Humic acids from an Arctic fjord, Krossfjorden, Spitsbergen [PDF]
Polish Polar Research, 2022 Humic substances are ubiquitous materials found in terrestrial and aquatic ecosystems. Humic acids, a diagenetic product can interact with various components present in aquatic sediments.
Aswathy Shaji +3 more
doaj +1 more source
Laboratory measurements and modeling of metal-humic interactions under estuarine conditions. [PDF]
, 2002 Equilibrium dialysis was used to measure Co- and Cu-binding by an isolated peat humic acid (PHA) in controlled laboratory experiments under simulated estuarine conditions: ionic strengths of 0.005-0.7 M in NaCl and mixed Na-Mg-Ca chloride solutions, with
Hamilton-Taylor, J. +3 more
core +4 more sources
Isolation of humic acid from oxidized lignite and complexation with metal cations [PDF]
Hemijska Industrija, 2017 Lignite is brown coal, which in its composition contains humic acids. Humic acids are produced by coal combustion, which leads to the enrichment of coal humic acids.
Ćatović Benjamin +3 more
doaj +1 more source
Al(III) and Fe(III) binding by humic substances in freshwaters, and implications for trace metal speciation. [PDF]
, 2002 Published experimental data for Al(III) and Fe(III) binding by fulvic and humic acids can be explained approximately by the Humic Ion-Binding Model VI. The model is based on conventional equilibrium reactions involving protons, metal aquo ions and their ...
Tipping, Edward +3 more
core +4 more sources
Regularization of peat humic acids functional composition [PDF]
E3S Web of Conferences, 2019 Humic acids are perspective complicated natural objects for different purposes. The problem of humic acids functional composition regularization is very important.
Chukhareva Natalia +2 more
doaj +1 more source
Response of manfalouty Pomegranate trees to foliar application of humic acid and amino acids [PDF]
SVU-International Journal of Agricultural Sciences, 2021 This study was carried out during 2018 and 2019 seasons for examining humic acid and amino acids effects on the yield and fruit quality of Manfalouty pomegranate trees grown under Assiut region circumstances.
O.A. Khodair, M.M.A. Abd El-Rahman
doaj +1 more source
Iodine binding to humic acid [PDF]
Chemosphere, 2016 The rate of reactions between humic acid (HA) and iodide (I(-)) and iodate (IO3(-)) have been investigated in suspensions spiked with (129)I at concentrations of 22, 44 and 88 μg L(-1) and stored at 10 °C. Changes in the speciation of (129)I(-), (129)IO3(-) and mixed ((129)I(-) + (129)IO3(-)) spikes were monitored over 77 days using liquid ...
Bowley, H.E. +5 more
openaire +3 more sources
APPLICATION OF 1H-NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY TO STUDY THE STRUCTURE OF SOME HUMIC ACIDS [PDF]
Journal of Soil Sciences and Agricultural Engineering, 2003 A study has been made using the'H-n.m.r. spectroscopic technique to inllestigate the structure or some humic acids extracted (rom different composts. The results galle useful information about the nature of the extracted humic acids, whiCh differed ...
M. Mahjoub, A. Modaihsh, A. Taha,
doaj +1 more source
CHEMICAL AND SPECTROSCOPIC MEASUREMENTS ON THE HUMIC ACIDS EXTRACTED FROM SOME ORGANIC COMPOSTS [PDF]
Journal of Soil Sciences and Agricultural Engineering, 2003 Humic acids were extracted from different composts and have been characterized by chemical and spectroscopiC methods. Meaningful differences il) the cornposiuon were revealed by UV. Visible and IR spectroscopies.
A. Modaihsh, A. Taha,
doaj +1 more source