Results 11 to 20 of about 2,546,424 (196)

Laboratory measurements and modeling of metal-humic interactions under estuarine conditions. [PDF]

open access: yes, 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

Al(III) and Fe(III) binding by humic substances in freshwaters, and implications for trace metal speciation. [PDF]

open access: yes, 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

Process options for the treatment of humic rich waters [PDF]

open access: yes, 2004
Seasonal periods of high rainfall have led to difficulties in removing sufficient natural organic matter (NOM) to meet trihalomethane (THM) standards, and hence better or alternative treatments are required.
Fearing, David Andrew
core   +7 more sources

Research Progress on Electro-Chemical Oxidation of Low-Rank Coal to Humic Acid

open access: yes南方能源建设, 2022
[Introduction] With the vigorous development of renewable energy, clean and efficient utilization of low-rank coal not only improves resource utilization and economic value but also has great social significance.
Ruzhan BAI   +6 more
doaj   +1 more source

Effect of biofertilizers and humic acid on vegetative growth parameters in Sat Kara (Citrus macroptera) under soil media conditions [PDF]

open access: yesInternational Journal of Minor Fruits, Medicinal and Aromatic Plants
An investigation on effect of biofertilizers and humic acid on vegetative growth parameters in Citrus macroptera seedlings under soil media conditions was studied during the period 2022–2023.
Ramkishor Choudhary,
doaj   +1 more source

Humic acid protein complexation [PDF]

open access: yes, 2008
Interactions of purified Aldrich humic acid (PAHA) with lysozyme (LSZ) are investigated. In solution LSZ is moderately positively and PAHA negatively charged at the investigated pH values.
Tan, W.F.   +4 more
core   +1 more source

Impact of soil application with humic acid and foliar spray of milagro bio-stimulant on vegetative growth and mineral nutrient uptake of Nonpareil almond young trees under Nubaria conditions

open access: yesBulletin of the National Research Centre, 2020
Background At present, agricultural production management techniques focus on greater commitment to environmental sustainability. As such, this study was carried out during two successive seasons (2018 and 2019) to investigate the impact of two natural ...
Mahmoud Sami Abourayya   +5 more
doaj   +1 more source

The role of humic acid in Fenton reaction for the removal of aliphatic fraction of total petroleum hydrocarbons (diesel range) in soil

open access: yesEnvironmental Science and Ecotechnology, 2021
This study investigated the role of humic acid in Fenton reaction for the total petroleum hydrocarbons (TPH) (diesel) in soil. Batch reactions were conducted at varying humic acid dosages and pH.
Seyedeh Pegah Jalilian Ahmadkalaei   +3 more
doaj   +1 more source

Extraction yield of humic substances from organic materials

open access: yesDyna, 2022
At present there is a great advance in the use of organic substances as fertilizers; humic substances are one of them with various forms of extraction.
Irina Pedroso-Rodriguez   +5 more
doaj   +1 more source

Intercation Between Some Micro-Elements And Humic Substances in Some Forest Soils Northern Iraq

open access: yesTikrit Journal for Agricultural Sciences, 2022
Four pedons were selected for different soils in the forest cover, two in each of Mankeesh and Atrush areas in Dohuk governorate, under pine and oak trees, in order to study the distribution of the main groups of humic compounds (humic and fulvic acids ...
Qahtan D. Essa Al-Khafagi
doaj   +1 more source

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