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  1. Function of Humic Acid

    Humic materials have been studied since the beginning of the twentieth century, and due to poor evaluation methods, several researchers have been...
    Masahiko Uomori, Tatsuaki Yamaguchi in Tropical Peatland Eco-evaluation
    Chapter 2023

  2. Sorption of uranium(VI) from aqueous solution using nanomagnetite particles; with and without humic acid coating

    In this study, iron oxide nanoparticles (Fe 3 O 4 ) and iron oxide nanoparticles with humic acid coatings (Fe 3 O 4 /HA) were investigated for the removal of...

    Aly A. Helal, I. M. Ahmed, ... A. A. Helal in Journal of Radioanalytical and Nuclear Chemistry
    Article Open access 12 June 2022

  3. Integrating bioprocess and metagenomics studies to enhance humic acid production from rice straw

    Rice straw burning annually (millions of tons) leads to greenhouse gas emissions, and an alternative solution is producing humic acid with high...

    Reza Sharafi, Gholamreza Salehi Jouzani, ... Mojegan Kowsari in World Journal of Microbiology and Biotechnology
    Article 17 April 2024

  4. Enhanced Photocatalytic Performance of ZnO NRs Using Mechanical-Assisted Thermal Decomposition Method for the Degradation of Humic Acid

    In this study, ZnO nanorods were successfully synthesized by using the one-step mechanical-assisted thermal decomposition method. The crystalline...

    Vipul Bhardwaj, Sarita Sharma, Gaurav Sharma in Biomedical Materials & Devices
    Article 29 May 2024

  5. Removal of Humic Acid from Water by Adsorption Using Chitosan and Metal Organic Framework ZIF 8 Loaded Chitosan Adsorbents

    Water is the most necessary need for life on the earth. There are a lot of organic pollutants in water. One of the organic pollutants is natural...

    Nilufer Hilmioglu, Esra Yumat in Water, Air, & Soil Pollution
    Article Open access 29 April 2024

  6. Coagulation performance and mechanism analysis of humic acid by using covalently bonded coagulants: effect of pH and matching mechanism of humic acid functional groups

    Conventional inorganic coagulants (Al, Fe) and Al/Fe-based covalently bonded flocculants (CAFMs) had different hydrolysis species at different pHs,...

    Yanli Kong, Meng Guo, ... Jiangya Ma in Environmental Science and Pollution Research
    Article 26 February 2024

  7. Effects of humic acid, nitrate and sulfate on hexavalent chromium removal by abiotic and biotic zero-valent iron

    Humic acid, nitrate, and sulfate in the environment may affect the performance of abiotic and biotic zero-valent iron (Fe 0 ) on the remediation of...

    L. Yi, W. Li, ... J. Wu in International Journal of Environmental Science and Technology
    Article 11 June 2024

  8. Technology for Production of Humic Preparations

    In a number of countries, a tendency towards a decrease in the doses of applied mineral fertilizers is being monitored, and the role of their...
    Vladimir Teterin, Sergey Mitrofanov, ... Sergey Pehnov in Fundamental and Applied Scientific Research in the Development of Agriculture in the Far East (AFE-2022)
    Conference paper 2024

  9. Properties of Gold-Bearing Humic Acids

    Abstract

    The test of gold-bearing humic substances aimed to find forms of gold in them. The test results enable estimation of gold compound mobility...

    A. V. Zashikhin, O. N. Suvorova in Journal of Mining Science
    Article 01 April 2023

  10. Interactions Between Humic Acid and the Forms and Bioavailability of Copper in Water

    There is widespread concern about pollution of freshwater ecosystems caused by heavy metals. The aim of this study was to determine how humic acid...

    Hongwei Pan, Lili Shi, ... Huiru Chen in Water, Air, & Soil Pollution
    Article 03 May 2023

  11. Variations in redox properties of biochar and humic acid induced by interactive molecular exchange

    Biochar and humic  substances are prevalent redox pools in the environment, which is critical to electron transfer in geochemical cycles and...

    Shasha Li, Pin**g He, ... Fan Lü in Carbon Research
    Article Open access 20 March 2024

  12. Speciation of vanadium and the interacted solid surface of δ-alumina adsorbent in aqueous media in presence of humic acid

    Speciation of vanadium elements in the presence of δ-alumina in aqueous media was studied to simulate the environmental impact of soil/sediment–water...

    Ashraf A. El-sayed in Scientific Reports
    Article Open access 06 June 2024

  13. Supramolecular Formations of Humic Substance Molecules and Their Fractal Organization

    Abstract

    During studying water stability of soils, spherical particles of several hundred nanometers in size were found to be released from the soil...

    G. N. Fedotov, E. V. Shein, ... D. I. Potapov in Eurasian Soil Science
    Article 21 August 2023

  14. Extraction of Humic Acid Followed by Coagulation with Natural Starch Coagulant for the Elimination of Color and COD from Stabilized Leachate

    Refractory organics (humic and fulvic acid) are the prime factors for the dark brown color and higher COD of stabilized landfill leachate. Because of...
    Zaber Ahmed, Mohd Suffian Yusoff, ... Hamidi Abdul Aziz in Proceedings of AWAM International Conference on Civil Engineering 2022—Volume 1
    Conference paper 2024

  15. Humic acid biosynthesis and bacterial community evolution during aerobic composting of rice straw

    Abstract

    In this study, the effects of inoculum ratio, substrate particle size and aeration rate on humic acid (HA) biosynthesis during aerobic...

    Yuwei Gao, Shuai Liu, ... Yong-Zhong Wang in Applied Microbiology and Biotechnology
    Article Open access 26 January 2024

  16. Influence of humic acid on microbial induced carbonate precipitation for organic soil improvement

    Microbial induced carbonate precipitation (MICP) is one of the most commonly researched topics on biocementation, which achieves cementation of soil...

    Meiqi Chen, Sivakumar Gowthaman, ... Satoru Kawasaki in Environmental Science and Pollution Research
    Article 27 September 2022

  17. Weak-acid biochar catalyst prepared from mechanochemically-activated biomass and humic acid for production of 5-hydroxymethylfurfural

    Many types of sustainably-prepared functional biochar catalysts are needed to transform biomass substrates into platform chemicals. In this work,...

    Haixin Guo, Sohei Ogawa, ... Richard Lee Smith Jr in Biochar
    Article Open access 24 July 2022

  18. Novel Fe3O4–ZnO Carbonized Rice Husk Modified Nano Composite Sorbent for Removal of Humic Acid from Aqueous Media

    In this study, we used a novel absorbent ZnO/Fe 3 O 4 /carbonized rice husk (CRH) composite for removal of humic acid (HA) from aqueous solutions. The...

    Omid Omidvar, K. Alizadeh, Azim Shams in Iranian Journal of Science
    Article 08 February 2024

  19. Removal of humic acid interference in soil enzymatic analysis using poly-γ-glutamic acid

    Soil enzymes are biological indicators in environmental and agricultural monitoring. However, brownish humic acid (HA) in samples interferes...

    Chanika Chanthasa, Kazuto Sazawa, Hideki Kuramitz in Analytical Sciences
    Article 20 November 2022

  20. Improvement of humic acid (HA) removal using a new inorganic–organic composite coagulant: α-costic acid as a modifier of polyaluminum chloride properties

    In this work, α-costic acid (αCA), a plant sesquiterpenoid from Dittrichia viscosa , was grafted into polyaluminum chloride (PAC), forming a new...

    Fatima Ezzahra Maaghloud, Anouar Abdellah Elfoulani, ... Mohamed Dakir in Analytical Sciences
    Article 30 October 2023
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